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User`s Manual - Environmental Test Chambers from Cincinnati Sub

1. Chamber N Hold the RJ11 connector in your hanad tab side down with the cable opening towards you The pins are numbered 1 6 from right to left Either RJ 11 connector on the chamber can be used for the connection from or to another chamber There is not a designated in and out connection Keep the communication wires as short as possible between chambers The total length adds up quickly and longer runs will degrade performance Maximum recommended total length is 350 feet but is by no means guaranteed The total length depends on many factors including the quality of wire used the number of chambers on the link and the presence of electrical equipment in the area that may generate electrical interference For longer runs and when multiple chambers are used on the same link a line terminator may be required at the end of the cable run This is typically a 220 ohm resistor connected across the A and B terminals of the last chamber on the link See the manufacturer s instructions for your specific EIA 485 communications interface used with your PC for any requirements that they may have to be followed EZT 560i User Manual Cincinnati Sub Zero 9 2 GPIB lIEEE 488 Communications The GPIB communication option is provided through the use of ICS Electronics Model 4899 GPIB to Modbus Controller The 4899 is an IEEE 488 2 compatible GPIB device that can control single or multiple Modbus slave devices It accepts simple GP
2. Enter Number Of Days Before Password Renewal Is Required This is a global setting for all users If the user was created with password aging enabled password aging takes affect from the day the user is entered into the system Re authenticate User During Process Changes This feature requires that the logged in user must log in again before the process value at the controller will actually be changed Enable Disable Audit Trail This is a global setting that turns the audit trail on or off When the audit trail is turned on all operator actions are written to a daily log security must be enabled for this feature Enable Disable Security This is the global setting that turns the EZT 560i security system on or off 61 Cincinnati Sub Zero EZT 560i User Manual 6 2 User Log On Off When security is enabled a user must log on to the system in order to gain access to privileged items To log on to the system select Log On from the Security menu Enter the user UserID and Password on the login screen and press Done when finished If the entries made are valid the user will be logged onto the system In order for a user to log off the system select Log Off from the Security menu UserID Password Back Clear Cancel Figure 6 6 User Logon 6 3 View Audit Trail The View Audit Trail selection from the Security menu allows the user to view all audit trail files stored in memory This selection
3. EZT 560i User Manual Cincinnati Sub Zero 6 1 Security Setup All security parameters are accessed via the Security menu Log On Log Off View Audit Trail View Current User Change Password 6 1 1 Add User The Add User tab provides the ability to add up to 30 users to the system Select the type of user from the user group drop down list Operator Supervisor or Administrator Press each field to add the user ID full name and password no spaces allowed If the password and confirm password entries do not match or the user ID is already used the EZT 560i will alert the operator and not accept the entry Add User users User Rights Security Options User Group Operator DI UserID MLAMBERT Full Name MARKLAMBERT Password et Confirm Password Password Aging Create User Figure 6 1 Security Add User Check the password aging checkbox if you wish to enable password aging for the user If password aging is enabled and the password has expired a new password must be entered for the user by the system administrator before that user can log into the system again bd The system administrator can not use the Password Aging option This will lock the administrator out of the system thereby preventing the system administrator from managing passwords for the system users The EZT 560i will prevent administrators from using this option 6 1 2 User List The Users tab
4. Set Jump Step 2 Q R Set Jump Count 9 a a Jump from step 5 to 2 Step 6 End at 25 With the jump programmed on step 5 the profile will jump from step 5 back to step 2 after the soak time has completed The profile will then repeat steps 2 through 5 It will continue to do this until all 9 jumps have occurred Once all 9 jumps have been completed the profile will continue on to step 6 after the final soak at 40 Since 1 cycle is made prior to the first jump at the end of step 5 a total of 10 cycles are completed 31 Cincinnati Sub Zero EZT 560i User Manual 4 2 Autostart Autostart is used to start a profile on a specified date or day and time of a 24 hour clock The autostart settings are stored with the profile To enter the desired start date or day select Auto Start Profile from the profile Views menu Choose the desired autostart method date or day and enter the start time settings Once the desired entries have been made press the Done button to return to the profile entry screen DOW Sun Sat 0 through 6 Month 5 Day Of Week Day 13 Hour 10 Year 06 Minute 22 AUTOSTART BY DATE Done Figure 4 6 Profile AutoStart Autostart by Date When this mode is selected the exact date and time must be entered Enter the month day year and time of day in hours and minutes for when the profile is to start The day of week is not required to be set It is not used for this function Autosta
5. the item you selected Select Yes to clear the count Note that the Service Monitor screen must be showing the Elapsed count The service monitor screen can be set to display the elapsed service interval or the life total for the component based on the selection made in the Service Info Setup screen The alert method can also be disabled if this feature is not desired 75 EZT 560i User Manual Cincinnati Sub Zero 8 2 1 Service Info Setup The service monitor display options as well as alert action can be adjusted from the Service Info Setup screen ELAPSED SERVICE OR TOTALS D S ELAPSED SERVICE OM ortas ENABLE DISABLE SERVICE ALARMS D S SERVICE ALERT OFF COMM SERVICE ALERTS ON COMM LEATS w AUDIBLE ALARM Figure 8 3 Service Monitor Setup Elapsed Service or Totals Selects which count is to be displayed on the Service Monitor screen Enable Disable Service Alarm Selects the method of service notification or disables alerts completely Service alerts are disabled by default To make changes place a check in the appropriate check box and press the Accept button For information regarding the service monitors and what they mean see Section 10 Diagnostics 76 EZT 560 User Manual Cincinnati Sub Zero 8 3 Set Date Time The date and time can be adjusted by selecting Set Date Time from the maintenance setup menu The current date and time will be displayed in the field entry wi
6. 6 Why is the profile not coming out of a Wait For When a wait for condition is applied to a step the step will not begin until the wait for condition is met If the wait for condition is an input to the EZT the input must reach and or exceed the wait for setpoint If the input does not reach the setpoint the step will not continue When using a wait for to initiate a soak time be sure to place the wait for condition on the soak step If the wait for is applied to the ramp step the profile will not continue because the setpoint will not change until the wait for condition is met i e the ramp can not take place until the step is executed Since the setpoint does not change the input will not change to meet the wait for setpoint and the profile will wait indefinitely If the wait for condition is a digital input the selected input must meet its configured transition state after the wait for has been initiated If the input turns on or off before the wait for has begun the profile will not continue because the change in state of the input must be seen after the wait for has been initiated 7 Why does my profile not start immediately when run is selected When a profile is started the EZT scans the profile and calculates the overall run length of the profile in order to provide an estimated date of completion Depending upon the total number of steps in the profile including the number of jump steps used it may take the EZ
7. Cincinnati Sub Zero EZT 560 Environmental Chamber Controller User Manual CA TEA n View Profiles Setup Security Log Help PROFILE LOADED cust test 30 9 5 4 TEMPERATURE HUMIDITY DUAL IEW AT 11 27 2007 1 59 47 PM a amp EZT560i User Manual revB doc 1 Cincinnati Sub Zero EZT 560i User Manual TABLE OF CONTENTS ENER Bee a ae an ne a noe ne a SOS EE 5 tt Safety MPO MMA e DEE 5 1 1 1 Device Under Test DUT Safety Intormatton 5 1 2 ABOUE the El 6 1 3 Touch Sereen Interface EE 7 1 3 1 Menu Navigation 8 tA Lal 11 MOnitoring iscsitaioiediisnswandviscsnnivineesiniranntasdiinnnsaivieseaiitaiiaeniinndaauddenianniiensinededanandrannn 12 ANE 12 211 Smole Loop VIQW vesesc ects eset cavaveddccenaskedengecd dar tent cad E E e A aea a aaa 12 2 12 Dual Bio 13 21 3 All LOOPS E TEE 13 22 Rue EE 14 2 3 Alarm MONITOR EE 16 E Va file e VE 16 24 Alarm HISTON EE 17 25 System Status Oe It TE 18 Manual Operation ivsicsrasscisesassdvascradsvasanndswissnnisvnierndswnnnnaaivisdnniivaneranwasenabavnnarains 19 3 1 Setpoint Adjustments EE 19 3 2 Event Control Turning the Chamber Ode 20 3 2 1 Standard Chamber Option 20 3 2 1 4 Humidity Operation tg det ented peel ENEE 20 3 2 1 2 Auxiliary Cooling Operation cccccceceseeeceeeeeee eens eeeaeeeeeee teense seaeeesaeeseaeeeeeeeess 22 3 2 1 3 Dry Air Purge Low RH Operation 22 3 2 2 Special Chamber Options EE 23 B 2 2 1 Altitude lee te TEEN 23 3 2 2
8. Requires authorized refrigeration service personnel to replace HUMIDIFY CYCLES If boiler system Inspect electrical connections and heater SSR for loose or frayed wiring Tighten loose connections DEHUMIDIFY CYCLES LOW RH VALVE CYCLES Inspect valve body for corrosion Look for cracks in valve stems Inspect electrical connections on solenoid coil Requires authorized refrigeration service personnel to replace DIVE VALVE CYCLES VACUUM VALVE CYCLES Inspect valve body and fittings for cracks or leaks Verify pressure regulator settings TRANSFER CYCLES Inspect transfer mechanism for wear Adjust slide mechanisms and or lubricate as necessary Inspect cables for fraying and replace if applicable Q The elapsed service intervals are set based on CSZ recommended operating conditions for the chamber These intervals may not be suitable to all applications due to varying operating conditions and environmental factors It is recommended that these be used as a guide only and that the end user determine and set up their own maintenance program based on use to insure reliable and long term chamber operation If you have any questions regarding maintenance procedures or would like recommendations for service procedures or programs contact Cincinnati Sub Zero s Service Department 116 EZT 560 User Manual Appendix Cincinnati Sub Zero A Cincinnati Sub Zero EZT 560 User Manual C
9. belts Inspect motor bearings for excessive wear slop Lubricate if applicable SYS COMPRESSOR HRS Check compressor oil level Verify static pressures Clean air cooled condenser if applicable air cooled units Inspect condenser water connections if applicable water cooled units Verify proper temperature and differential pressure HUMIDITY SYSTEM HRS Inspect water connections and filter cartridge if applicable Clean humidity water reservoir if option present If atomizer system remove spray nozzle and clean Inspect compressor motor and diaphragm for wear Clean water filter Inspect for build up of deposits on humidity sensor Clean filter tip of sensor Use caution so as not to damage sensor tip DRY AIR PURGE HRS Inspect air lines for leaks Inspect filters and clean if necessary HEATER CYCLES Inspect electrical connections and heater SSR for loose or frayed wiring Tighten loose connections 115 Cincinnati Sub Zero EZT 560 i User Manual Elapsed Service Counter Description Service Action SYS CMP STARTS Inspect wiring and power contactors for loose connections Tighten or repair as necessary Inspect compressor mounts vibration isolators for wear Tighten loose mounts or replace isolators if worn COOL VALVE CYCLES RHCOOL VALVE CYCLES Inspect valve body for corrosion Look for cracks in valve stems Inspect electrical connections on solenoid coil
10. Dynamic field that is active only if step is a jump step Displays the number of jumps remaining for the step Dynamic field that is active only if a jump has been made Displays the last step a jump was made from Dynamic field that is active only if a jump has been made Displays the last step a jump was made to Dynamic field that is active only if a jump has been made Displays the total count of all jumps made 37 Cincinnati Sub Zero EZT 560i User Manual 4 7 Profile Worksheet This table can be used as a template for creating profiles prior to entering them on the EZT 560i It can also be used as a tool for quick checks to make sure all of the entries were made correctly Profile Name Date Programmed Programmed By Step Setpoint 1 2 3 4 5 Step Time H M S Chamber 1 Events 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Customer 1 Events 2 3 4 5 6 7 8 9 10 12 12 13 14 15 GS 1 Events 2 3 4 5 Wait for Wait for Setpoint Jump Step Jump Count 38 EZT 560 User Manual Cincinnati Sub Zero 4 8 Frequently Asked Questions About Profiles 1 How do start or run a profile To select and start a profile you must be on the Profile Entry or Profile Status View screen Using the Edit menu choose the Select Profile
11. Once all modifications have been made press the Accept button to save the changes If you do not press the Accept button all changes will be lost if you leave the screen or enter a new analog output number gn If you change the analog output type change from voltage to current or vice versa power must be cycled to the EZT 560i controller in order for the output to switch types 86 EZT 560 User Manual Cincinnati Sub Zero 8 6 4 1 Analog Output Wiring Locate the analog output connector on your chamber Figure 8 17 is a representation of the typical analog output connection provided on most chambers however as changes and or improvements are made your specific connection style may vary To connect the output signal first make sure that the output type is set correctly on the EZT 560i as described above It is recommended that a quality twisted pair shielded cable is used to connect the output signal to your device Make sure to observe proper polarity when connecting the signal leads Only connect the drain wire of the shielded cable at your device or the chamber not both Connecting the shield to ground at both ends of the cable can induce unwanted noise into the signal leads ANALOG OUTPUT 1 SN Measuring Device OUTPUT 2 SN OUTPUT 3 SHIELDS CONSULT MANUAL Figure 8 17 Analog Output Wiring If you connect more than one device to each output make sure that you do not exc
12. Pressing the X at the top of the dialog instructs the EZT 560 interface to ignore the advanced printer features and skip the installation of any print drivers that are not applicable to operation with the EZT 560i Cincinnati Sub Zero EZT 560i User Manual 2 Monitoring The chamber view screens provide various means of verifying chamber operation and performance The displays are accessed from the main menu under View Single Loop view Dual Loop View All Loops View Loop Trends Manual Event Control Alarm Monitor Alarm History System Status Monitor 2 1 Loop Views The loop screens provide different viewing options for the control and monitoring of chamber processes such as temperature humidity altitude etc The loop screens allow you to adjust the current setpoints SP and view the process variables PV and percentages of output for each loop The set points can be modified from these screens by touching the set point field Upon selecting a set point the pop up numeric entry pad will appear from which the set point can be entered However if a profile is active the set point fields are locked out from user adjustment If the loop is monitor only the set point and percentage of output will not be displayed since no control is associated with the input 2 1 1 Single Loop View The single loop view display shows one control loop or monitor input at a time The auto tune feature is accessible
13. W PRobuct Figure 8 14 Analog Inputs To configure an input first select the input number by entering the value in the Analog Input field Upon entering the value the inputs current configuration will be loaded and indicated by the LED s next to the selected type and setpoint selection The minimum and maximum values will be shown in the Input Min and Input Max fields To make changes to the input s configuration place a check in the box next to the desired type and setpoint selection for the input Enter the new minimum and maximum values for which the input is to represent Once all modifications have been made press the Accept button to save the changes If you do not press the Accept button all changes will be lost if you leave the screen or enter a new analog input number 1 If you change the analog input type change from voltage to current or vice versa power must be cycled to the EZT 560i controller in order for the input to switch types As the analog input signal is varied it will provide a linear setpoint change from the minimum to maximum value over the range of the input Note that if the minimum or maximum range exceeds the setpoint limits for the input see Section 5 2 Setpoint Limits the EZT 560 will limit the setpoint to the maximum value as defined under chamber setup 8 6 3 1 Analog Input Wiring Locate the analog input connector on your chamber Figure 8 15 is a representatio
14. contacts The input connection provides both 24Vdc power and common terminals for use with the digital inputs Power can also be provided by a separate source In order for a separate source to work properly the common terminal of the external power supply must be connected to the common terminal on the input connector Do not connect the 24Vdc terminal on the chamber to the output of another power A source or in series with an external source Doing so can cause irreparable damage to the EZT 560i and may result in a hazardous shock or fire Do not exceed the digital input voltage range or damage to the input may occur The 24Vdc supply is of limited power and for sourcing the inputs only Do not use this to power other devices or short the 24Vdc and common terminals together Damage to the power supply may occur Digital Input Specifications Voltage Input Input Range 20 4 to 28 8Vdc Input Impedance 3 4K ohm Rated Input Current 7mA point Response Time 1 second maximum 90 EZT 560 i User Manual Cincinnati Sub Zero 8 6 6 Digital Outputs The EZT 560 digital output option provides 15 digital outputs which can be used as event outputs alarm outputs or for other signaling needs This is acommon menu item and will be present even if your chamber is not equipped with the optional digital outputs If your chamber is equipped with the optional digital outputs electrical connections will be provided on the chamber f
15. menu item to open the list box containing all available profiles in the EZT s memory Open the desired profile from the list and then select Run from the Run menu Enter the desired start step and press the Start profile button 2 How do know which profile is running When a profile is running the profile name is displayed on Profile Status View screen as well as the single and dual loop view screens The EZT will indicate that the profile is running when the profile is in operation If a profile is not running the EZT will indicate which profile is loaded i e currently in memory and ready to be started 3 Why does the profile not ramp to the set points in the first step The profiler in the EZT 560i was designed to operate the chamber based on the defined profile Since the chamber can be at random setpoints when a profile is started this could cause the chamber to not follow the selected profile properly or the same each time it is run To insure that the profile is executed in the same manner each time the chamber setpoints are immediately set to the first step s setpoints for the length of the step This acts as an initialization step to get the chamber running and conditioning product as desired prior to performing ramping sequences of the profile This eliminates the need for the operator to set the chamber to the proper setpoints prior to starting a profile Q For instances where only a single ramp is requir
16. minimum a bridge or router A control network and a business network have two entirely different purposes and their interaction should be closely controlled It is also unwise to assume that any Ethernet capable device themselves have any security features at all Separating the control LAN from the office LAN using a firewall only allows control access that is based on a combination of IP source address destination address and port number This is by no means completely hacker proof but it should keep the well meaning co workers out Another hazard is connecting consumer plug and play devices to your control LAN A printer for example might flood the network with traffic with a broadcast storm as it tries to self configure or advertise its presence to all nodes on the network Faulty devices for example defective NIC cards can transmit large amounts of bad packets i e runts which are abnormally short Ethernet frames into your network Using switches instead of hubs limits the effect of such problems The most commonly overlooked source of problems is cabling Not all cables are created equal Electrical noise generated by factory equipment or other test equipment in the area could easily corrupt transmitted data over the network and cause devices to lock up which then requires the machine to be shut down and restarted to clear the problem Select the right cable for the environment Shielded twisted pair STP cable is
17. 8 18 Figure 8 19 Figure 8 20 Figure 8 21 Figure 9 1 Figure 9 2 Figure 9 3 Figure 9 4 Figure 9 5 Figure 9 6 Figure 9 7 Figure 9 8 Figure 9 9 Figure 9 10 Figure 9 11 Figure 9 12 Figure 9 13 SECUMLY AGG USGL TT 59 SOCUMITY Users iStone ain aiaa a a a a a aE a aE 60 Change User PaSSwOrd 2 cecdasecesuedecetppaatedsanegesscedansnadacdses aa aaia aaa Aa EARN 60 SOCurity User RIG MiS sinasara anaia aeai a aaa aaa aa ai anaa Ea 61 SECUMLY OPtiONS eas naad an aana aaa Eaa a aaa aaa EE In a 61 User Logon EE 62 Audit Trall Viewer Seier nein heli N a EE eed de 62 Start Stop Datalogging ceccceeccceceeeceeseeeeeeeceeeeeceaeeeeaaeceeeeesaeeesaaeeseaaeseeeescaesesaeeeeeeeseaees 64 LOGGING SetUp sid one ecient ied Baghdad 65 History le EE 66 History lee 67 History Plot Time Setups EE 67 History Plot Channel Getunp AANEREN 68 e EN EE 68 Pile DOE 69 FTAWAN Setup ane augina kasaae aae ced che a E aea a aa e a E 71 Degrees C F Selecto EE 74 SEMVICE Mentt e2eeskeegdektdierdeeeegget sue hee e aaa TENETE a a EEA RAER 75 Seice Monitor SetU prrs piirua aeaa AE NEEE Ea aa EASA AENEA iA 76 SAAE E E A E E E E ere 77 TME OPulOns capisiiaa amadanan iaaiiai aeaaea Muh get aai aaae a a aaaeei 77 Daylight Savings Time Settings ccccceeceeeeeeceeeeeceeeeeeaaeeeeeeeceaeeesaaeseeaeeseeeessaeeeeaeeeeeeesaas 78 TouchScreen Calibration asussa aa aaa 79 TOUCH Sereen SOMINGS isrann a eaaa aaia a eaaa 79 Calibration Scree Misi issieisrui
18. America EIA TIA 232 and 485 Data communications standards set by the Electronic Industries of America and Telecommunications Industry Association Formerly referred to as RS Recognized Standard Electronics Industries of America EIA An association in the US that establishes standards for electronics and data communications FTP File Transfer Protocol The most popular mechanism for bulk movement of files on TCP IP fuzzy logic A mathematical control algorithm that monitors past response of a system to predict future response and automatically adjust PID parameters in order to adapt to process hysteresis A change in the process variable required to re energize the control or alarm output Sometimes called switching differential integral control I Control action that automatically eliminates offset or droop between setpoint and actual process temperature IP Address Address of a TCP IP enabled device on an Intranet or Internet LAN Local Area Network A group of computers and associated devices that share a common communications line or wireless link A 2 EZT 560 User Manual Cincinnati Sub Zero Common Terms and Definitions cont d limit or limit controller A highly reliable discrete safety device redundant to the primary controller that monitors and limits the temperature of the process or a point in the process When temperature exceeds or falls below the limit setpoint the
19. EZT 560 User Manual If the annunciate alarm is off there will be no audible signal when an alarm condition is present In addition if the alarm is set to self clear and continue see below the screen background will not turn red The alarm will be reported on the alarm screen but no visual alert will be given If the alarm is set to latching and or to shut down the chamber the screen background will turn red in order to provide a visual alert to the operator that user intervention is required An alarm set to continue will not affect the operation of the chamber when in alarm condition If the alarm is set for the shutdown mode of operation the chamber will turn off all systems in an alarm condition If a profile is operating the profile will also go into hold If the EZT 560i is equipped with the customer event option the alarm can be assigned to one of the event outputs Utilizing the close on alarm or open on alarm mode settings the event output will turn on and off with the alarm it is assigned to EN The event output must be configured to be used as an alarm output If the alarm output selected is not configured to be an alarm output it will not function according to the alarm settings See Section 8 6 6 Digital Outputs for information on how to configure the operational mode of the customer event outputs Alarm Setpoints High Setpoint Hi SP Low Setpoint Low SP Hysteresis DB 46 The alarm hig
20. Email Addresses Email Settings Login Name Ezs60 Return Address EZT560 mycompany com Password EH SMTP Server mail mycompany com Email Subject testchamber Save Figure 5 11 Email Settings Login Name The login name is the name required for the EZT 560 to log into your company s mail server You can use your login if one is not set up specifically for the EZT 560i on your network Contact your system administrator for assistance Return Address The return address is the address given for the EZT 560 on your company s mail server The EZT 560i does not except email messages however this field is required for proper email delivery for security anti spam purposes If using your personal login name you can also use your personal email address if one is not set up specifically for the EZT 560i on your network Contact your system administrator for assistance 56 EZT 560 User Manual Cincinnati Sub Zero Password The password field is used for entering a password if required by your network server to send email Typically a password is not required for sending email only to receive email Contact your system administrator for assistance Q This password will remain visible on the email settings screen If a password is required it is recommended to contact your system administrator and have them set up an account specifically for the EZT 560i for security purposes SMTP Server This field is for e
21. Exit Apllication Press the Exit Application button This will stop the EZT 560i application and take you to the Windows CE desktop From the desktop touch the narrow gray bar at the bottom of the screen to show the taskbar Before proceeding enable the keyboard so that it will be available to enter in the IP address If you do not enable it now you will not be able to access the taskbar later once in the Ethernet Drivers screen Keyboard Hide Input Panel Figure 9 6 Enabling the Keyboard To enable the keyboard touch the keyboard icon at the lower right of the taskbar and select keyboard from the menu This will make the keypad visible Next press the Start button and select Settings then Network and Dial up Connections to bring up the connections window Programs gt wll de Favorites t Panel Documents gt Molala ls lalla laln Ta e 3 Control Panel Network and Dial up Connections gestat To Taskbar and Start Menu Figure 9 7 Network and Dial up Connections 104 EZT 560 User Manual Cincinnati Sub Zero From the Connection window select the current network connection by double clicking the connection icon to bring up its property window DO NOT create a new connection Connection Ce Make New Connection esc 1 2 3 4 5 6 7 8 9 o Giel Tabla wle r tlylulifolp t 1 cap a s a f oln ilk i E a i LN EES FEC Ct th 9 Lie
22. Profiles Setup Security a es TEMPERATURE HUMIDITY DUAL YIEW AT 4 17 2008 9 43 23 AM Multiple instances of the VNC viewer can be started on your PC By running multiple viewers you can have access to multiple chambers right from your desktop The heading of each VNC viewer window will use the VNC Device Name entry for the header By entering in unique names for each chamber you can identify each VNC connection and know which chamber you are manipulating The VNC viewer should be closed when it is not being used to control the chamber If continuous monitoring of the chamber is desired the web server interface is the recommended means of doing so Leaving a VNC connection open to a chamber for extended periods of time is not recommended Accidental manipulation of the control or erroneous network activity could cause connection problems over the VNC connection and result in chamber malfunction Some viewers contain additional features for file transferring and other higher level functions These functions are NOT compatible with the EZT 560i Any attempt to use them may lock up the EZT 560i s display and will require power to be cycled in order to reboot the system All viewers should be used ONLY to monitor and manipulate the EZT 560i as if you were standing directly in front of it Cincinnati Sub Zero can not take responsibility for other manufacturer s software and will only provide support within CSZ s discretion for c
23. STEP TIME LEFT e a WAIT FOR INPUT S ow WAIT SETPOINT S ow TEMPERATURE SP e In HUMIDITY Sp o ann PRobDucT sS o SYSTEM ALARMS LE CHAMBER EVENTS emmen S himoy SC C C SCSCSCSCStS DIR mmaneuser CUST EVENT 1 eusteen leustreenrs oereeur oereeure CS lt S S S SCSSSTSSSSSS eusteen oereeurz CS lt CSs C SSSSS oereeure oereeure CUST EVENT 10 ON ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF CUST EVENT 11 EE CUST EVENT 12 OFF CUST EVENT 13 OFF CUST EVENT 14 OFF OFF CUST EVENT 15 108 EZT 560 i User Manual Cincinnati Sub Zero 9 3 5 Using the VNC Server The EZT 560 s VNC server allows a user to remotely monitor and control the chamber by directly viewing and manipulating the EZT 560i s touch screen over the network All activity performed by either local or remote operators over the network will be viewed as if the user was actually touching the EZT 560i s screen The VNC server can be enabled and disabled by simply touching the VNC Server On Off button You must use the assigned IP address to access the EZT 560i To obtain the correct IP address go to the Web Server Modbus VNC screen selection under the chamber setup menu Write down the IP address so you will have it to enter into your VNC viewer Modbus Timeout 200 ms DEVICE IP ADDRESS 10 1 10 81 Figure 9 13 VNC
24. The Setup menu provides access to the EZT 560i s setup screens and the link to the offline system maintenance area Email Menu The Email menu provides access to the EZT 560i s email server settings Help Menu The help menu provides simple help regarding settings and use of screen parameters Cincinnati Sub Zero EZT 560i User Manual Logging Menu j Start Stop Logg Open History File art Stop Logging Delete History File Select Points For Logging File Utilities Hist view Time Setup Hist View Channel Setup FTP WAN Setup j view History Plot Main view Check Disk Space TREE Show Help Figure 1 6 Logging Menu Navigation Views Menu The Views menu provides navigation back to the main menu screen Edit Menu The Edit menu provides access to the history files file utilities and FTP file transfer settings DataLogging Menu The Datalogging menu provides access to the logging setup and historical file viewing utility Help Menu The help menu provides simple help regarding settings and use of screen parameters System Maintenance Menu Degrees C F Service Monitors Service Info Setup Monitor Inputs Set Date Time ae 2 Calibrate Touch Screen Wie Analog Outputs i Special Settings Digital Inputs Show Help Chamber Setup Exit Application Digital Outputs About EZT 560 Figure 1 7 System Maintenance Menu Navigation Views Menu The Views menu provid
25. a live load the location of the product temperature sensor is critical Since the product is generating heat placing the sensor on a heated component as compared to a non heated surface like a portion of the product case will dramatically affect performance and test results It is up to the user as to what component or location on the product is required to get the proper test results Just consider that if the sensor is placed on a heated surface the chamber may not be able to control it to the desired temperature due to airflow constraints or the amount of heat being produced Deviation Control Deviation control when used for live loads operates in the same manner as for dead loads described above however determining the lower and upper setpoint limits are where they differ The maximum deviation between air temperature and product temperature should be found in the same manner as for dead loads but the value is then applied differently 50 EZT 560 User Manual Cincinnati Sub Zero A good starting point is to use the maximum deviation found for the upper setpoint and use three times the deviation for the lower setpoint This allows the air temperature to drop further in order to increase the rate at which heat is pulled from the product in order to compensate for its internal heat generation Process Control Process control also operates in the same manner for live loads as dead loads However due to the fact that the product is ge
26. and the historical data viewer Help Menu The help menu provides simple help regarding settings and use of screen parameters EZT 560 User Manual Cincinnati Sub Zero Profile Menu New Profile Insert Step Gegen Run Profile Main View Copy Step Hold Profile Profile Status Vi Paste Step Stop Profile leech cea stop Profile All OFF Profile Entry Select Profile Soak Limits Save Profile Adjust Step Time Auto Start Profile i Save s Advance Next Step Plot Profile Delete Profile Advance Prev Step Show Help Figure 1 4 Profile Menu Navigation Views Menu The Views menu provides navigation back to the main menu and the profile view screens These include profile status profile entry soak limits autostart and plot profile screens Edit Menu The Edit menu provides all of the functions needed to open create edit and save profiles Run Menu The Run menu contains the profile control selections such as run hold and stop Help Menu The help menu provides simple help regarding settings and use of screen parameters Setup Menu Power Recovery Setpoint Limits Event Tagnames Process Alarm Tagnames Alarm Settings Product Control Condenstation Control Defrost Settings Web Server Modbus VNC Help System Maintenance Email Settings Show Help Figure 1 5 Setup Menu Navigation Views Menu The Views menu provides navigation back to the main menu screen Setup Menu
27. checkbox next to Copy To Memory Stick Press the specific button that represents the file type to copy Profile etc All related files will be copied with progress status displayed to user To erase files from internal compact flash Check the checkbox next to Delete From Internal Storage Press the specific button that represents the file type to erase Profile etc All related files will be erased with progress status displayed to user To copy files to the USB memory stick and then erase files from internal compact flash Check Delete From Internal Storage and Copy To Memory Stick checkboxes Press the specific button that represents the file type to copy erase Profile etc All related files will be copied and then erased with progress status displayed to user Alarm Files Audit Trail Files Data Files Delete From Internal E H Copy To I Stick Storage Figure 7 8 File Utilities Q The memory stick must be inserted into the USB port for any of the file utility operations to function Itis recommended to only use memory sticks certified by Cincinnati Sub Zero for use with the EZT 560i CSZ has tested and validated these memory devices for proper operation and performance Due to manufacturing variations in the various USB memory sticks It may take anywhere from 10 to 30 seconds for the EZT 560i to recognize the device when it is plugged in Allow sufficient time for the device to be recognized befor
28. from Profiles menu Entry Profile Status View Run Profile Hold Profile Stop Profile Stop Profile All OFF 26 EZT 560 i User Manual Cincinnati Sub Zero 4 1 Profile Entry Profiles are created and edited from the Profile Entry screen The following instructions describe the steps involved for programming profiles 1 To create a profile go to the Profile Entry screen 2 From the Edit menu select New Profile and select Yes to create a new profile 3 Enter the number of steps for the profile you want to create Note that the number of steps can be changed at any time during the profile entry to shorten or lengthen the profile as required Profiles can be from 1 to 99 steps in length 4 For each step enter the events setpoints and time duration of the step 5 Save the profile STEP TIME HH MM S5 Figure 4 1 Profile Entry Edit Menu Options New Profile Clears any existing profile entry data so that a new profile can be entered Insert Step Inserts a step into the current profile at the current step number Delete Step Deletes the current step Copy Step Copies the current step data Paste Step Pastes previously copied step data to current step Select Profile Opens the file explorer window so that the user can select a profile from the profiles currently stored in memory Save Profile Saves any changes made to the current profile under the existing name If no name exists the us
29. from this screen 33 2 KES WI TEMPERATURE Figure 2 1 Single Loop View EZT 560 User Manual Cincinnati Sub Zero 2 1 2 Dual Loop View The dual loop view display shows two control loops or monitor inputs at a time It provides a large standard display for control of both temperature and humidity common on most environmental test chambers TEMPERATURE HUMIDITY Figure 2 2 Dual Loop View 2 1 3 All Loops View The all loops view display shows all available control and monitor inputs available on the chamber in a tabular format From this view all setpoints process variables and output percentages can be monitored at a glance Press Tagname column to select SP for edit and field at bottom right to change value Tagname Value Setpoint z0u TEMPERATURE 85 1 HUMIDITY 95 7 PRODUCT 83 9 No Tagname selected for edit o Figure 2 3 All Loops View The setpoint entry field is located at the lower right of this screen In order to modify a loop s setpoint select the loop by touching its tagname field in the table The loop s setpoint will then be available for edit Touch the edit field in order to enter the new setpoint Cincinnati Sub Zero EZT 560i User Manual 2 2 Trending Each loop and monitor input of the EZT 560i has its own trend display with individual display settings The loop trend can display the setpoint SP process variable PV and percentage of output history over a period
30. limit controller interrupts power through the load circuit A limit controller can protect equipment and people when it is correctly installed with its own power supply power lines switch and sensor MAC Media Access Control The physical components which disassemble Ethernet message fames MAC Address The physical address of an Ethernet node Modbus A digital communications protocol owned by AEG Schneider Automation for industrial computer networks Modbus RTU Remote Terminal Unit an individual Modbus capable device on a network overshoot The amount by which a process variable exceeds the setpoint before it stabilizes PID Proportional integral derivative A control mode with three functions proportional action dampens the system response integral corrects for droop and derivative prevents overshoot and undershoot process variable PV The parameter that is controlled or measured Typical examples are temperature relative humidity altitude etc The high process variable is the highest value of the process range expressed in engineering units The low process variable is the lowest value of the process range proportional control P Output effort proportional to the error from setpoint For example if the proportional band is 20 and the process is 10 below setpoint the heat proportioned effort is 50 percent ramp A programmed increase in the temperature of a setpoint system r
31. link The settings must be set to match that of the host computer and vice versa The serial port settings of the EZT 560i are fixed other than the controller address parity and timeout settings The host computer s serial port must be set to match the fixed EZT 560i port settings Address 1 31 user selectable Baud Rate 9600 Data Bits 8 Stop Bits 1 Parity none odd even user selectable Timeout 200ms user adjustable The address is used to identify the EZT on the serial link When a multi drop connection is used each controller on the link must have a different address so that each one can be identified separately If two or more EZT s have duplicate addresses communications with those controllers will fail because they will all try to respond to the same message For single controller connections the address only needs to match that of the commands being sent from the host computer The parity setting is an extra level of error checking that the serial ports of devices can use to verify that the data received is what was sent All devices on the serial link must be set to the same parity setting or they will not transmit and receive data the same way Thus communications will fail between devices that do not have the same settings 95 Cincinnati Sub Zero EZT 560i User Manual The timeout setting is the receive timeout for the EZT and defines how long it will wait to receive a valid message before clearing its serial
32. naturally more noise immune and is preferable to unshielded twisted pair or UTP in noisy situations STP should have at least 40dB CMRR and less than 0 1pF capacitance unbalance per foot Ground STP cable making sure the ground is connected only at one end CAT5 STP patch panels normally provide a grounding strip or bar Hubs and switches don t provide grounding use cables It s wise to be pessimistic about a cable s ability to reject noise from 230 VAC and 460 VAC power lines and noisy power supplies of a factory Capacitance imbalance greater than 70pF per 100m can introduce harmonic distortion resulting in bit errors The cost of cable is quite small compared to total equipment cost so if you re looking to save money this is not a place to do it Choose a well designed cable to minimize bit error rate after installation and that will give faster throughput and fewer glitches 102 EZT 560i User Manual Cincinnati Sub Zero 9 3 2 Obtaining the EZT 560i s MAC Address For certain network configurations the MAC address of the EZT 560i may be required for proper routing of information to from the EZT 560 The MAC address of the EZT 560i can be obtained from the system settings window To do this enter System Maintenance from the Chamber Setup menu Select Calibrate Touch Screen from the setup menu under System Maintenance and press the Calibrate Touch button This will bring up the system settings window Select the MA
33. one step each time the menu item is selected When the profile is on the desired step place the profile back into run and the profile will resume operation from the beginning of the step 4 5 3 Adjusting Step Time During profile operation the length of time remaining in a step can be adjusted to increase or decrease the time left The adjust step time function allows you to add or subtract time from the current step however the profile must be first put into hold Once the profile is in hold the Adjust Step Time menu item is enabled under the Run menu Press fields below to addjsubract time from current step Enter negative numbers to subtract time from step enter positive numbers to add time to step 0 0 Figure 4 10 Adjust Step Time When selected the adjust time screen will be shown Enter the time in hours and or minutes and press done when finished The time remaining in the step will be adjusted by the total time entered Once complete resume the profile by selecting Run from the run menu Hi When adjusting the time of a ramping step the ramp rate will be altered for the remainder of the step The ramp rate will decrease if time is added and increase if time is removed To subtract time from a step enter negative values for hours and or minutes 36 EZT 560i User Manual 4 6 Profile Status View Cincinnati Sub Zero The profile status view provides all information regarding the operation of the current
34. possibilities from the gathering of information to the inherent control of equipment from anywhere in the world The flexibility and convenience that this provides makes it a very desirable feature for new equipment The EZT 560 provides this ability but there are considerations that should be taken by the end user to protect their equipment and investment Just like placing a personal computer on the internet opens it up to outside attack placing your chamber on a network poses the same risk The first thing to remember is this The most probable cause of problems is not a hacker trying to sabotage your test but more likely to be related to the ubiquity of PCs with Ethernet cards the ease with which your own co workers can hang stuff on the network and careless or nonexistent internal security measures Accidental problems are more common than deliberate ones Allowing anyone access to the chamber by placing it on the office LAN also opens the door for accidental shutdown damage to product loss of data and lost test time This is possible even by the most well intentioned co workers Thus there are several steps that should be taken to minimize this risk The most important and best advice is to never mix your office LAN with your control LAN The control LAN should be a separate network that consists of your chambers and possibly any other test equipment that you may have It should be separated from your office LAN by a firewall or at
35. s serial port must be capable of RS 485 half duplex communication or an interface converter must be used CSZ has tested the following converters for compatibility with the EZT 560i B amp B Electronics 707 Dayton Road PO Box 1040 Ottawa IL 61350 Phone 815 433 5100 http Awww bb elec com Part 485019TB for EIA 232 to EIA 85 Part 485PS2 external power supply required if handshake lines unavailable for power RESmith 4311 Smith Drive Hamilton OH 45011 Phone 513 874 4796 http Awww RS485 com Part ASC24T B9FPS for EIA 232 to EIA 485 provided with adapter cables and power supply 97 Cincinnati Sub Zero EZT 560i User Manual A maximum of 31 chambers can be linked together on a single ElIA 485 link When connecting multiple chambers together do not run separate cables from the PC to each chamber Follow the diagram below for proper connections Running multiple connections from the host PC will degrade the signal and could prevent communications from operating correctly 98 PC Serial Connection EZT 560i Serial Connections Description Pin RJ11 1 Description DATA A __ _ _ ____ 3 DATA A DATA B 4 DATA B Chamber 1 Pin RJ11 2 Description 3 DATA A DATA B RJ11 1 Description v DATA A DATA B Chamber 2 Pin RJ11 2 Description 3 DATA A E 4 DATA B Pin RJ11 1 Description 3 DATA A 4 DATA B
36. the EZT if its address has been changed and the serial connection is ready for operation 96 EZT 560 User Manual Cincinnati Sub Zero 9 1 3 EIA 485 Connections The EZT 5607 s serial communication interface is configured for EIA 232 by default The Modbus slave can only communicate via one mode or the other 232 or 485 at a given time In order to use the EIA 485 connection you must change the serial communications mode To do this enter system maintenance and select Calibrate Touch Screen from the system maintenance setup menu Press the Calibrate Touch button to enter system settings Select the Set serial port mode tab and set the COM3 mode to RS485 Save System version Set serial port mode D gt Set COM1 mode R5485 x Set COM3 mode RS232 v Figure 9 3 Serial Port Mode Once the change is made select the Save tab and press the Save registry button to save the change to the registry The serial port mode change will not be retained when power is removed from the unit unless you do this Press the OK button at the top right of the window to close the system settings window The EZT 560 is now set to use EIA 485 for serial communications The EZT 5607 s communication interface supplies two RJ 11 connectors for convenient daisy chaining of multiple chambers to a single PC s serial port The connection requires only two wires pins 3 and 4 of the RJ11 connector The PC
37. the maximum humidity level that they can operate at a given temperature in order to protect the chamber structure This limit typically applies to modular chambers These chambers are constructed of individual panels that lock together to form the chamber The panels have an inner chamber liner and outer skin with a foam insulation sandwiched between them They are primarily used for large walk in drive in chambers Due to the materials used in the construction of the modular panels the humidity is typically limited to a maximum 70T dewpoint which corresponds to a maximum of 95 at 70 C 158F When humidity is limited due to the fact that the maximum dewpoint has been achieved the corresponding System Status Monitor indicator RH HI DEWPOINT LIMIT will illuminate to indicate that this condition is present If your chamber is not obtaining the desired humidity level check the status monitor to verify that you are not trying to operate the chamber at a point outside of the chamber s maximum dewpoint capability 21 Cincinnati Sub Zero EZT 560 User Manual 3 2 1 2 Auxiliary Cooling Operation The auxiliary cooling system utilizes LN2 or CO2 as a boost cooling medium to assist the refrigeration system in lowering the chamber air temperature It is an inexpensive method for fast cooling transitions without having to make the investment in a high horsepower refrigeration system that may rarely be used It can also be used as the primary cooling
38. the running profile and turns all events off The setpoints will remain at their current values when the profile stopped however all chamber systems stop This allows you to immediately stop a profile and shut down the chamber with one entry 35 Cincinnati Sub Zero EZT 560 User Manual 4 5 1 Hold Resume a Profile At any time during the operation of a profile the profile can be manually put into hold This stops the profile timer however the chamber continues operation under the current step settings at the time the profile was put into hold To put a profile into hold select Hold Profile from the Run menu and select Yes to put the profile into hold To resume the profile at the point in which it was put into hold select Run Profile from the Run menu and select Yes to continue the profile Q When a profile is in hold the setpoints and events can be manually changed however once profile operation is resumed the setpoints and event status will return to those defined by the step 4 5 2 Advance Previous Next Step The advance step functions allow you to skip certain profile steps or repeat them by advancing to the desired step To advance to a previous or next step in the profile the profile must be first put into hold Once the profile is in hold the advance step menu items are enabled under the Run menu By selecting Advance Previous or Advance Next the profile will jump back or jump forward by
39. to operate the chamber including user interface system monitoring and protection as well as process control This type of platform allows for more flexibility in chamber design while providing a high level of reliability and control accuracy The heart of control is performed by individual Fuzzy PID controllers one for each controlled process This allows for the utmost in performance by providing a separate processor for each loop The process controllers utilize the latest technology with built in adaptive tuning This means that the process controllers continuously monitor the operation of the chamber and adjust their control parameters to achieve the most stable control possible without any user intervention Adjusting PID parameters is a thing of the past The chamber s systems and components are monitored and controlled by the core CPU of the EZT to insure that limits are not exceeded and profiles are executed precisely The chamber is protected from adverse operating conditions without the need for user intervention or knowledge on system operation The user interface provides local operator control and monitoring of the system It can track all user actions with its built in security module as well as log process information and store it for later use Together the system components form a complete SCADA supervisory control and data acquisition system for total chamber management The graphic displays shown in this manual are repres
40. variable at that particular time When the cursor is enabled the name for each variable will become the actual value at the current cursor position As the cursor is scrolled across the plot the value will change accordingly Pressing the Cursor button again will turn off the cursor and restore the variable names Start 8411 2005 End 8 25 2005 hq Done 100 0 80 0 60 0 40 0 20 0 0 0 0841 11 59 PM 08 1 59PM 08 25 11 59 PM Figure 7 4 History Plot Cursor Oo If a data file is too large for the EZT 560i s viewer a message box will indicate that the file must be retrieved by using the FTP server or a memory stick for remote viewing on a PC If regular logging operations generate files of a large size it is recommended that the files be removed from the EZT 560i after retrieval to keep memory usage under control for continued data logging operation 7 3 2 1 History Plot Time Setup Select Hist View Time Setup from the Datalogging menu The history time setup allows the user to select any time frame zoom in out out of the data file for review The History Plot Setup screen displays the start and end date time for the currently selected file Use the sliders to adjust the time span to review only a section of the file if desired The time setup defaults to the full file each time a new file is selected File Start At File End At Figure 7 5 History Plot Time Setup 67 Cincinnati Sub Zero EZT 560i User Ma
41. with an intuitive interface for navigating through the different menus and settings without having to go multiple levels deep in screens like other button style systems The EZT 560i provides a Windows like feel with drop down menus and online help at all times This section of the manual provides an overview of the menu items and structure Main Menu default on power up Single Loop View Dual Loop View All Loops View Setup Loop Trends E Log On Profile Status view Log Off Manual Event Control A Run Profile View Audit Trail pan Montor Hold Profile view Current User Alarm History Stop Profile 5 i i Ip System Status Monitor Stop Profile All OFF Chamber Setup ae System Logger Figure 1 3 Main Menu Navigation View Menu The View menu provides navigation to all standard view screens These include loop views loop trends manual event control alarm monitor and history operating screens Profiles Menu The Profile menu provides access to the profile editing and monitor screens From these screens a user can open save edit delete and run profiles Setup Menu The Setup menu provides access to system and controller setup options Security Menu The Security menu provides access for user login as well as audit trail viewing if the security system is enabled with users and the proper security rights Log Menu The Log menu provides access to data log functions
42. within the product under test To view the averages report select View Averages Report from the Datalogging menu Time from 12 01 to 17 55 Done Tagname Average Temperature Humidity Altitude All Points Avg Figure 7 7 Averages Report 68 EZT 560i User Manual Cincinnati Sub Zero 7 4 File Utilities The File Utilities screen allows the user to copy and or erase files from the EZT 560 s internal compact flash card Complete file directories for all EZT 560 file types can be copied to the USB memory stick or erased from the internal compact flash card Complete status for file functions as well as progress bar status is displayed for the operator during copy erase operations A quick note regarding file storage The files log files alarm history and audit files require periodic After a period of time storage devices fill up and files require backup or file deletion when no longer needed The File Utilities section of the EZT 560i provides all the functionality required for maintaining the internal compact flash card The internal compact flash card should not be removed from the EZT 560 interface Any change to compact flash directory structure moving or deleting files will cause the EZT 560 interface to stop operating and a new compact flash card will need to be ordered Never move or delete files unless using the internal EZT 560 file utilities To copy files to the USB memory stick Check the
43. 05 Cincinnati Sub Zero EZT 560i User Manual Open the StorageCard folder by double clicking the icon File Edit View Go Favorites x powo u o o ei a Application HardDisk My Network Data Documents E E Temp NORFlash Program Files Sekt eidel J A Windows Control Figure 9 10 My Computer From within the StorageCard folder open the CECP utility by double clicking the icon s ep en e Favorites J x Address StorageCard v Alm History Audit Data Files Def EZT560 Help Profiles Startup Oo mw J Web CeBg CECP Figure 9 11 Storage Card This will open the system settings window Select the Save tab and press the Save registry button to save the network connection settings Close the System Settings window by pressing the OK button at the top right of the window and cycle power to the EZT 560 When the EZT 560 boots up it will be running with the new network configuration settings 106 EZT 560i User Manual Cincinnati Sub Zero 9 3 4 Using the Web Server The EZT 560 s web server allows a user to remotely monitor chamber operations anywhere via a PC s standard web browser When enabled the web server provides a detailed status page of the EZT 560i s current operating conditions The web server can be enabled and disabled by simply touching the Web Server On Off button You must use the assigned IP address to access the EZT 5
44. 2 Thermal Shock Transfer Mechanism Operation 23 3 2 2 3 Defrost Operatoriai eenei i aadied R deed 24 3 2 2 4 Remote Setpoint Operation 24 3 2 3 Product Control Option TEE 24 3 2 4 Customer Events Option siciecsscste cats ccctensadeteaetestedesssactedit easedes acted vate EENS Taa aa Ra a 24 3 9 One Touch TUNING WE 25 Profile OPGratlOM iacsscenccaccartcisnsnciaransncctcicncnananence henenctiataanctaneanscommcieataaaenencnenns 26 4 1 Protile Entry EE 27 4 1 1 Selecting Step Events 28 4 1 2 Selecting Guaranteed Soak GS Events 28 4 1 3 Using KETTEN 29 4 1 4 Setting Setpoints and Step Time 30 4 1 5 USING BIEN 31 4 2 Autostart EE 32 4 3 Guaranted Soak DOS issoria aaa aas gege Eaege dE 33 4A Plot Wee UE 34 4 5 Start Stop le 35 45 1 Hold RESUME a Plotile iecccciccics cers ss iiiaae a aaa 36 4 5 2 Advance Previous Next Gienp AA 36 KC Ne East 36 4 6 Profile Status View sixcecsscvecvesccitecdscectant peas cavusezs seus EERSTEN 37 EC Profile Worksheet isiin a aA e E deeg Ea EEE RAE 38 4 8 Frequently Asked Questions About Profiles 39 EZT 560 User Manual Cincinnati Sub Zero TABLE OF CONTENTS cont d 5 Chamber Setup E 41 Bil Power Ee 41 52 Setpoint El UE 42 BS Event E le LEE 43 5 4 Process Alarm Tagnames sseseesseeeseeseesteeseter ttr ttntstntstntstunsttnsstustnnsntnstnsstnssrnssnnn nts 44 EE E EE ne EE 45 5 6 Product Control ix oder renani eaa ceased pe naai idiak eae i aariaa anaia 47 5 6 1 Using Pro
45. 5 serial interfaces as well as the standard network communications port The EZT 560 can also provide an IEEE 488 GPIB communication port through the use of an optional interface converter To connect to the available communication ports locate the communications connector panel on the chamber EIA 232 Serial Connector EIA 485 Serial Connectors D sub 9 Pin RJ 11 ETHERNET Ethernet Connection RJ 45 Figure 9 1 Communications Connector Optional IEEE 488 GPIB Connector Location ai A D a ti Ly LA CO Kei CO Ka a o 94 EZT 560 User Manual Cincinnati Sub Zero 9 1 Serial Communications The EZT 560 uses Modbus RTU protocol for serial communications The EZT 560 s communication address parity and timeout can be changed on the Web Server Modbus VNC screen located under the chamber setup menu Modbus Timeout 200 ms DEVICE IP ADDRESS 10 1 10 81 Figure 9 2 Modbus Settings The EZT 560i is set by default for an address of 1 even parity and 200ms timeout for use with CSZ s EZ View software package If another software package is being used or you are writing your own custom application see the EZT 560i User Communications Reference Manual for instructions and information on command structure and protocol usage 9 1 1 Adjusting Modbus Serial Communication Settings The Modbus serial communication settings allow the EZT to be configured for a single RS232 or multi drop RS485 serial
46. 60 To obtain the correct IP address go to the Web Server Modbus VNC screen selection under the chamber setup menu Write down the IP address so you will have it to enter into your web browser Modbus Timeout 200 ms DEVICE IP ADDRESS 10 1 10 81 Figure 9 12 Web Server Settings Q Contact your IT department prior to enabling the web server of the EZT 560i Company policy may prohibit the use of web servers for security reasons Cincinnati Sub Zero is not responsible for the use of nor makes any claims as to the security of the web server interface over your network The use of the EZT 560i web server is the responsibility of the end user To access and view the EZT 560i s status web page enter the following link in your PC s browser address window http IPaddress ezt html from example address http 10 1 10 81 ezt html The following example is typical of the EZT 560i web page appearance The web page updates automatically every 30 seconds and provides information on each individual loop profile status alarm status and event status 107 Cincinnati Sub Zero EZT 560i User Manual Cincinnati Sub Zero EZT 560 Controller 12011 Mosteller Road Cincinnati OH 45241 1528 513 772 8810 LOOP DATA TEMPERATURE PV 24 9 SP 249 0 HUMIDITY PV 50 0 sP 500 PRODUCT PV 22 8 SP 249 0 PROFILE STATUS FOR WET PROFILE Sans Ieoake START par ooa ESTIMATE STOP DATE O oaoa CURRENT STEPS
47. C Address tab in order to view it System settings Figure 9 4 MAC Address When finished press the OK button at the top right of the system settings window to close it Press the Return To Setup button and then navigate back to the desired operating screen 9 3 3 Setting a Static IP Address Under some situations it may be necessary to set a static IP address for the EZT 560 on a network A static IP address can be set in the EZT 560 however it requires exiting the EZT 560i application and entering the Network and Dial up Connections settings of the CE operating system When performing this procedure do not alter change or delete any other files or settings of the system Doing so may render the EZT 560i inoperable To begin you must be logged on to the EZT 560i as an administrator in order to exit the application The default user ID and password is supplied in the security section of this manual If the default security settings have been altered get the proper authorization from the administrator of the chamber Once logged on with the proper security access proceed to the System Maintenance section of the EZT 560i From the setup menu under system maintenance select Exit Application 103 Cincinnati Sub Zero EZT 560 User Manual Exit Application Pressing the Exit Application button will exit the EZT 560 application and suspend all chamber operations Figure 9 5
48. IB bus commands that are used to create Modbus RTU packets which are then transmitted serially to the Modbus slave device s The data transmission can be to a single Modbus device over an EIA 232 link or to multiple Modbus devices over an EIA 485 network The controller s SCPI parser accepts IEEE 488 2 common commands SCPI commands and Modbus commands The IEEE 488 2 and SCPI commands are used to setup the controller s status reporting structure or to configure its GPIB and serial interfaces Any commands that end in a are a query and the controller responds by outputting the requested data on the GPIB bus the next time it is addressed as a talker The 4899 includes a list of commands for controlling Modbus devices These commands specify the Modbus slave device address a read or write operation a register number and data or the number of registers to be read When the Controller receives a read R or write W command it converts the GPIB characters into HEX bytes assembles the packet and transmits it to the Modbus device This simplifies communications with the EZT 560i by automatically handling the Modbus protocol If your chamber is equipped with the optional GPIB communications port connect the chamber to your PC s GPIB port using the appropriate style cable Up to 15 devices can be connected on a single GPIB bus Q The 4899 converter interface is configured with a default address of 4 on the GPIB bus The address can be changed b
49. Limit Figure 5 2 Setpoint Limits The setpoint limits are factory set for the maximum safe operating range of the A chamber These limits are locked out from user adjustment by default at the factory User adjustment of these limits which exceed those limits set by the factory may result in damage to system components and will void the chamber warranty 42 EZT 560i User Manual Cincinnati Sub Zero 5 3 Event Tagnames The names of the optional customer events can be changed to describe what function they are used to perform To alter event names select Event Tagnames from the Setup menu SIGNAL LIGHT AUX ALARM PROFILE ALERT PROFILE END ALERT OPERATOR Press each event to change name Press Accept to Save Figure 5 3 Event Tagnames To change the name of the event select the event by touching its current tag name The pop up keypad will appear allowing you to enter a new description Once complete select Done and the new name will appear in the event tag name list box Once all changes have been made press the Accept button to begin using the new labels If the changes are not accepted the new tag names will not be used and the EZT 560i will continue to use the previous labels 43 Cincinnati Sub Zero EZT 560i User Manual 5 4 Process Alarm Tagnames The names of the optional monitor inputs as well as all loop and monitor alarm descriptions can be changed to indicate what function you have chosen
50. Outputs Off All Outputs Off Event Outputs Off Digital Output Control The profile must be in the waiting for input state prior to the input making the desired transition If the input makes the transition prior to the profile entering the wait for input state the profile will not continue When selected the input will advance the profile to the next step The profile must first be placed in hold prior to the input turning on in order for the step change to take place When selected the input will advance the profile to the previous step The profile must first be placed in hold prior to the input turning on in order for the step change to take place When selected the input will cause all chamber control outputs to turn off The outputs will stay off as long as the input is on When the input turns off all outputs will return to normal operation When selected the input will cause all chamber control and event outputs to turn off This includes all optional digital outputs configured as customer events The outputs will stay off as long as the input is on When the input turns off all outputs will return to normal operation When selected the input will cause all optional digital outputs configured as customer events to turn off The outputs will stay off as long as the input is on When the input turns off all event outputs will return to normal operation When selected the input becomes a switch whic
51. Server Settings Q Contact your network administrator prior to enabling the VNC server of the EZT 560i Company policy may prohibit the use of VNC servers and or viewers for security reasons Cincinnati Sub Zero is not responsible for the use of nor makes any claims as to the security of the VNC server interface over your network The use of the EZT 560i VNC server is the responsibility of the end user 9 3 5 1 Accessing the EZT 560i through a VNC Viewer There are many types of VNC viewers on the market CSZ uses and recommends the use of RealVNC s viewer A free version can be obtained from www realvnc com Once installed run the VNC viewer In the Server field enter the IP address of the EZT 560i and hit OK VNC Viewer Connection Details D Server LARL Cc Encryption If the VNC server password is enabled on the EZT the VNC viewer will then prompt for the proper password The connection will only be established once the valid password is entered 109 Cincinnati Sub Zero EZT 560 User Manual VNC Viewer Authentication No Encryption Vin Username VC password wm Once the connection is established the current EZT 560 display will be shown on your desktop The image will be a duplicate of what is on the EZT 560i As you manipulate the screen the display of the EZT 560 will also be manipulated so that any local operator would be able to see what is happening and vice versa IE EZ1 560i View
52. T a minute to process all of the steps in order to calculate this time Profiles can easily reach into the 1000 s of steps when multiple jumps are used and it takes time to process through all of the step data 8 Why has the profile not completed its run by the stop date given when I started it The estimated stop date provided by the EZT for the profile is a calculated value based on the sum total of all step lengths This time can be affected by any guaranteed soaks or wait for conditions entered into steps of the profile The affects of these times is an unknown and can cause the profile to run longer than calculated because they pause the profile until their conditions are met The EZT does update the estimated stop date based on these conditions as they occur however it does make the stop date a moving target 9 I have guaranteed soak turned on why is the chamber not following the ramp step Guaranteed soak should not be turned on for ramping steps Guaranteed soak is used to pause a step until the selected input is within the soak band around setpoint On a ramping step if the step time is paused due to an input leaving the soak band the ramp rate is then affected because the setpoint is no longer changing It will hold at that setpoint until the input returns to the soak band Since the purpose of a ramping step is to change the setpoint over time the input could be constantly falling in and out of the soak band throughout the ste
53. UIDUIS sis cscnicessancilessanevvasaeceinaseasdvdecengeliacansdivedaasatvaceasitiacansaiddcanstivedeassivadeassnne 91 8 6 6 1 DUT Safety Relay Output Wiring ccceccecceceesteeeeeesneeeeesseeeessnaeeeeesnaeeeeeeaas 92 8 6 6 2 Digital Output Wiring ccc cece ccececsteeeeseeecseeceeeecsueeecsaeceseeeesseescsaeeseaaeesseeecsas 92 9 COMMUMICAUONS iiscisiccsssiasdssinsssaskdsanisondsnnanadinaasnnnsapabeddnnbasebausbuaanannsuenecanbadandea 94 9 1 Serial COMMUNICATIONS ec cece cccccccecccceeccececceeceececeseeeseeceeseseseseeeueeeseseseceeeseseseseseeeeees 95 9 1 1 Adjusting Modbus Serial Communication SettingS cccccsccecessseceseesneeeeeeseeeeeeaaes 95 9 1 2 ElA 232 Connechons inuna Na nananana dnaK A NEENAKE NEEN Nanana S aE E ana 96 9 1 3 EIA 485 Connechons trir tr tr 1t 11 1 r11 r nEn EErEE E EErEE EE EEEE EE Ennn nnt 97 9 2 GPIB IEEE 488 CGommunicatons cece cece ceeeeeeeeeeeeeeeceeeeecaaeeeeaaeseeeeeseaeeesaaeeseaaeeeeeees 99 9 2 1 GPIB Command Structure cccccccccccccccccceccceceeececeeeceeececeeeeeeeeeeeeanenenenanenaeananananenanags 100 9 3 Ethernet COMMUNications sssrinin aaia 101 9 3 1 Guidelines of Smart Networking Practice cccccccecsseeeeeeseeeeeesseeeeessseeeessseesessaaes 102 9 3 2 Obtaining the EZT 560 s MAC Address 103 9 3 3 Setting a Static IP Address ccccccccsseeceessneceeecsaeeeeesaeeeessaeeeeseaeeeesesaeesesenaeeeeseaaes 103 9 3 4 Using the Web Gener nestranne enan nenten n
54. a small volume of air and discharges the dry air within the chamber work space This helps reduce condensation on surfaces within the chamber by drying the air When this event is turned on with the purge only option the air dryer will run continuously until the event is turned off If the chamber is also equipped with the humidity option and the humidity system is enabled the purge system will be disabled automatically by the EZT 560i The humidity system can not control the humidity level within the chamber if the purge system is continuously trying to dry out the chamber Level 2 The second level of this option includes the frozen coil low RH option This option allows the chamber to reach a 29 20 F dewpoint This relates to lower relative humidity capabilities When the low RH option is installed and the humidity system is enabled the dry air purge system is automatically operated in conjunction with the frozen coil by the EZT 560 controller based on the air temperature and humidity setpoints When required to obtain low humidity levels the frozen coil and dry air purge systems will start in order to achieve the target setpoint When no longer required they will automatically turn off This option also provides the benefit of being able to manually use the dry air purge system by turning the purge event on and off However in the case where the low RH option is installed the humidity system must be disabled for the dry air purge to
55. an event can be used to enable and disable the selected mode when the use event for enable disable button is chosen in addition to the product control mode Uses Event For Enable Disable When this selection is made the selected product control mode deviation or process is turned on and off with the product control event chamber event 10 When the selection is not made the selected product control mode is in operation at all times until disabled by the user EN The use event for enable disable selection allows product control to be turned on and off during different steps of a profile or from the manual event screen without having to disable it altogether This can be a useful function for varying product testing in which specific profiles are used for different product tests It allows a profile where product control is required to turn it on through the event when run and does not require the operator to insure that the correct control mode is selected 5 6 1 Using Product Control The key to using product control or even if it is necessary for your testing purposes is understanding your product and what temperature conditions you want to test it under There are several other factors that also come in to play such as the product shape location in the chamber and most importantly air flow over the product 5 6 1 1 Should Use Product Control for My Test It is important to remember that it is the chamber air that is adding o
56. ange The area between two limits in which a quantity or value is measured It is usually described in terms of lower and upper limits RTD resistance temperature detector A sensor that uses the resistance temperature characteristic to measure temperature serial communications A method of transmitting information between devices by sending all bits serially over a single communication channel setpoint SP The desired value programmed into a controller For example the temperature at which a system is to be maintained TCP IP Transmission Control protocol Internet protocol A suite of commands used for handling the transmission of Internet data T C thermocouple A temperature sensing device made by joining two dissimilar metals This junction produces an electrical voltage in proportion to the difference in temperature between the hot junction Sensing junction and the lead wire connection to the instrument cold junction A 3 Cincinnati Sub Zero EZT 560 User Manual List of Figures Figure 1 1 DUT Safety Connections eccccccceeeseeeeeececeeeeeeeaeeeeaeeeeeeeeceaeeeeaaeseeaeeeeeeeesaeeseaaeseeaeeseeeeess 5 Figure 1 2 Touch Screen Interface A 7 Figure 1 3 Main Menu Navigation cccccceceeeeeeeeeceeeeeceeeeeeaeeeeaae scenes saeeeseaeeseaaeseeeeeseaeeesaeseeeeseeneess 8 Figure 1 4 Profile Menu Navigation scenes seaeeesaaesseaeeseeeeeseaeeesaeseeeeseeeeess 9 Figure 1 5 Setup Menu Navi
57. ate touch procedure The backlight is set to turn off after 30 minutes by default To adjust the backlight setting select the LCD Settings tab from the system settings window Using the drop down menu select the time period for which the backlight should turn off after no activity System settings LCD Settings mac address Save System ve iy Turn off backlight 20min if device not used for Suun 30 min Figure 8 11 LCD Settings Proceed to the Save Registry tab to save any changes in order for them to be the default at the next power up 81 EZT 560 User Manual Cincinnati Sub Zero 8 5 Special Settings The Special Settings screen is available for special applications only when custom settings may be required for certain operating parameters If available on your system the tagnames for the fields will describe what the setting is for The value can be changed by touching the field entry window and entering the new setting via the keypad TAGNAME 1 TAGNAME 5 TAGNAME 2 TAGNAME 6 TAGNAME 3 TAGNAME 7 TAGNAME 4 TAGNAME 8 Figure 8 12 Special Settings M For most systems these settings will not be available If the settings are present on your system and you have questions regarding these settings contact Cincinnati Sub Zero s service department for assistance 82 EZT 560i User Manual Cincinnati Sub Zero 8 6 LO The I O menu provides access to EZT 5607
58. atically correct itself once the trend buffer is cleared of this data The clock is updated at 2 am so with a buffer length of 6 hours the trend data will display accurately at 8 am EZT 560i User Manual Cincinnati Sub Zero Trend Setup To adjust the displayed variables range and history period touch the Setup button in the upper right corner of the trend display The Trend Setup screen will appear with the available adjustment controls Trend Zero Trend Span Time Mins 80 200 240 Select points to plot Figure 2 5 Trend Setup Trend Zero The zero value sets the minimum range of the vertical access for the trend variables Trend Span The span value sets the maximum range of the vertical access for the trend variables Time Mins The time interval is in minutes and adjusts the displayed time period for the trend The allowable range is from 6 to 360 minutes 6 hours Trend Points To adjust what items are shown on the trend select deselect the desired items by touching the check box next to the variable Press the Done or Cancel button to return to the trend screen Any adjustments made when the Cancel button is pressed will be disregarded Each time a trend setup is changed the trend will fill with previous history and then operate in real time mode with the current settings Cincinnati Sub Zero EZT 560i User Manual 2 3 Alarm Monitor The alarm monitor screen displays any current a
59. atically through a running profile or just manually via the manual event screen See Section 5 6 Product Control for more information on settings and use of this option 3 2 4 Customer Events Option The EZT 560i controller has the ability to control up to 15 event output relays These outputs can be manually turned on and off and they can also be controlled programmatically through a running profile They can be used to start and stop devices under test within the chamber turn signal beacon lights on and off to indicate different steps within the test cycle etc In order for the EZT 560i s optional digital outputs to function as events they must be configured to do so By default the digital outputs when available are configured as customer event outputs See Section 8 6 6 Digital Outputs for more information on setting the operational mode for the optional digital outputs 24 EZT 560 User Manual Cincinnati Sub Zero 3 3 One Touch Tuning All of the EZT 560 control loops feature the one touch tune No more tuning parameters to adjust or settings to change The EZT 560 loop controls utilize fuzzy logic to continuously adapt to the process in order to maintain it as close as possible to the setpoint The controls merely need base line knowledge on the performance of the chamber and test load To obtain this performance knowledge the controller can be tuned using the one touch tune All Cincinnati Sub Zero chambers are factory tun
60. be off Profile Step Change When selected the output will provide a one shot pulse each time the profile changes steps This also includes an output pulse each time the profile is manually advanced to the previous or next step while in hold Hi When a profile is started the output will pulse when the first step of the profile is started 91 Cincinnati Sub Zero EZT 560i User Manual Input Alarm When selected the output can be controlled by an input alarm The input alarm must be configured to control the output See Section 5 5 Alarm Settings for information on assigning the alarm to the event output This output mode provides a way of controlling devices at specific temperature or humidity levels for example If more than one alarm is assigned to the output the output will not operate correctly and may cycle on and off uncontrollably Do not assign more than one input alarm to an output Chamber Alarm When selected the output will turn on when a critical alarm occurs The output will stay on until the alarm is silenced This output mode provides a remote alarm notification that operates in conjunction with the chamber s audible alarm Note that the alarm condition may still exist with the output turned off Digital Input 1 8 These mode selections are used to assign the output to one of the digital inputs It allows a digital input to turn the output on and off directly Any of the eight available inputs can be selected for co
61. can be turned on and off at set time intervals Update Press Update button to update events COMM cHameer OB vun OB aux cooune OM ory air Figure 3 3 Manual Event Control To turn the chamber and optional events on off 1 Select Manual Event Control from the main View menu 2 Select the events you want to turn on by touching the check box next to each event in the list box to place a check mark in the box To turn off events remove the check mark by touching the check box next to each event you want to turn off 3 Press the Update button to set the new event status Note that the events will not turn on or off until the update button is pressed 3 2 1 Standard Chamber Options The first event is the switch that turns the chamber on and off This will enable air circulators pumps heating cooling systems and any other components associated with the operation of the chamber This event is present on all chambers Depending on the options provided with your chamber additional events may also be present 3 2 1 1 Humidity Operation The humidity event turns the chamber s humidity system components on and off Note that when humidity is turned off the relative humidity is still measured and displayed however no control takes place to obtain the target setpoint The humidity system will not operate unless the chamber event is also turned on NOTES on humidity system operation Temperature Extremes When o
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63. cess to exceed a particular value that is set for the step Once the process reaches this setpoint value the profile will resume A profile can also be set to wait for a digital input This allows any of the eight available inputs to be selected When the EZT 560 reaches the step it will wait for the input to change state before continuing the step To enable a wait for in a step press the Wait For button This opens the wait for entry window From this window select the input to wait for and if a process variable is selected enter the setpoint for the wait This is the setpoint that the process variable must reach in order for the step to continue Once the entries have been made return to the profile entry screen by pressing the Back to Step Data button Loop Input TEMPERATURE v monitorinput MOE Digital Input Wait for Loop Monitor SP H Back To Step Data Figure 4 4 Profile Wait For Input The setpoint entry for a wait for is critical for the wait for loop or monitor to operate correctly During the wait state the selected process input must arrive at or cross the setpoint in order for the profile to resume operation Process must reach or exceed wait for setpoint The monitor input and digital input selections are only available if the option is available on your chamber When using the digital input wait for selection the digital input must be configured as a wait for event inp
64. chamber to reset Verify proper air flow and operation of air circulators in chamber Reduce set point Do not attempt to operate above chamber design limits COMBUSTIBLE MONITOR Optional air monitor detected hazardous condition Vent area with fresh air Possible asphyxiation or explosion hazard exists Keep personnel clear Keeps sources of ignition away from chamber Comm alm at PLC Check Cable Communication wiring between HMI and PLC faulty or not properly connected If alarm will not clear check wiring Exit EZT 560i application and verify that COM1 serial port is set to RS485 If intermittent alarm can be cleared and returns at random intervals then remote PC communicating too fast with EZT 5607 Reduce rate at which PC sends commands to the EZT 560i or reduce number of communication connections Random alarms when communications are being used are not a sign of a hardware problem It indicates that the EZT 560i is being loaded down with excess work The purpose of the EZT is to control the chamber Maintain a reasonable level of interface activity in order to keep your chamber running at an optimum condition Intermittent alarms do not affect the operation of the chamber or shut down the chamber However data logging may be affected depending upon the logging rate selected No audible alert is associated with this alarm 111 Cincinnati Sub Zero EZT 560 i User Manual Alarm Monitor Descript
65. ctory on the FTP site 71 Cincinnati Sub Zero EZT 560i User Manual Auto Backup 2 00AM When this check box is checked the EZT 560 will perform an automated back up of all data files contained in internal memory to the designated FTP site Note that if data logging is currently active the active file will not be copied Delete Internal Data Files After backup When this check box is checked the EZT 560 will delete all data files within its memory after completing the back up to the FTP site Note that if data logging is currently active the active file will not be deleted Once all settings have been made be sure to press the Save button to store the settings so that on the next power up the values will be maintained The Backup Now button can be used at any time to perform a manual data back up The EZT 560i will copy all data files stored in internal memory on each back up session If the files already exist on the FTP site they will be overwritten on the subsequent back up If the FTP site is down or the EZT 560i is not connected to the network a local alarm message on the EZT 560i will indicate a transmission failure Q The EZT 560i must have a valid connection to your network for the FTP server to operate The EZT 560i receives its IP address from DHCP on your network and it only occurs during boot Therefore make sure the EZT 560i is properly connected to your network and cycle power to the EZT 560i in order to
66. d equipment from damage Pay very close attention to all warnings that apply to your chamber 1 1 1 Device Under Test DUT Safety Information The environmental chamber is equipped with high heat limits and or safety devices These devices are installed to protect the chamber from exceeding design limits These devices remove power from the chamber s heaters ONLY and DO NOT remove power from the device under test Provisions must be made by the end user to de energize the tested device with the chamber in order to prevent an over temperature condition and subsequent damage to the chamber and or device under test For this reason the chamber is equipped with a DUT safety relay 24V AC DC 6A maximum resistive load that should be connected to the device s power supply control circuit at a minimum This relay will open and de energize the device under test to prevent a runaway thermal condition whenever the chamber is not operating See Section 8 6 6 1 DUT Safety Relay L1 Main Supply L2 fuse 24V supply E mechanical EEE contactor DUT coil safety relay Figure 1 1 DUT Safety Connections Cincinnati Sub Zero EZT 560 User Manual 1 2 About the EZT 560i The EZT 560 Environmental Controller is a DCS Distributed Control System which uses different hardware layers to perform the various functions needed
67. d profile is shown at the bottom of the profile entry screen To start the profile select Run from the Run menu Run Profile Hold Profile Stop Profile Stop Profile All OFF Adjust Step Time Advance Next Step Advance Prey Step You will then be prompted to enter the step number for the profile to start on default is step 1 Profile Start DE Figure 4 9 Profile Start Use the scroll buttons to adjust the start step if required and press the Start Profile button The profile will then be transferred into the profiler memory and started once the transfer is complete The Profile Status screen will automatically appear upon starting the profile so that the profile s operation can be observed Q If the profile was set up with the autostart feature enabled the profile will enter the autostart mode immediately upon running the profile Upon reaching the set date or day and time the profile will begin running The start date shown in the profile status view window indicates when the profile will start To stop a profile there are two options These selections are available from the Run menu Stop Profile Stops the running profile but leaves the setpoints and events at their current values when the profile stops This allows you to stop a profile and continue chamber operations in manual mode without shutting down the chamber and causing a hiccup in operation Stop Profile All Off Stops
68. desired signal level and cycle power prior to connecting the source signal or damage to the input may result Input Specifications Voltage Input Current Input Input Range 0 10Vdc 4 20mA Input Impedance 1M ohm minimum 10 ohm maximum Maximum Allowed Overload 13Vdc 40mA Total Error 1 of full scale 8 6 3 2 Enabling Remote Setpoint Inputs Once an analog input is configured for a particular loop it must be enabled for use By default the EZT 560 uses the setpoint entered manually from the loop view screen or from an operating profile The remote setpoints are enabled through events The event allows the user to manually select the use of the remote setpoint or control its use through a profile Each analog input has its own remote setpoint event If the event is on the setpoint selected for the input is overwritten and controlled by the input signal The EZT 560i uses chamber events 11 through 15 for remote setpoint 1 through remote setpoint 5 85 Cincinnati Sub Zero EZT 560 i User Manual 8 6 4 Analog Outputs The EZT 560 can have up to four analog outputs which can be used to retransmit setpoints process variables or percentages of output from the installed control loops If your chamber is equipped with optional analog outputs this menu item will appear in the I O menu list With this option electrical connections are provided on the chamber for external connection to each available output Some ou
69. duct Control 48 5 6 1 1 Should Use Product Control for My Test 48 5 6 1 2 Implementing Product Control on Dead Loads s nssssnnsssnnnnenn neeese nenene nnen 49 5 6 1 3 Implementing Product Control on Live Loads ccccececsseeeeeeseeeeeessteeeeeeaes 50 5 6 1 4 Considerations When Applying Product Control 51 5 7 Condensation Control 52 9 8 Defrost SSUINGS seneni a aaao aE pajasxaartaviesnead ss aacadecepegateyesettess 53 5 9 Web GerverModbushvVNt 54 5 La EE 55 Ee TEE ET 55 5 10 22 Email ee TEE 56 5 10 83 Email SOS EE 56 6 Gant ele eebe 58 6 1 Security SOU EE 59 Gite e HEET EE 59 GERT IST EE 59 6121 Delete Usata eea eg EE eege eege 60 6 1 2 2 Change User Password 60 6 1 3 User e EE 60 6 1 4 Security OPLONS wise fic cteeecniesed cenced deseka iaiia asiaan dE EZE ia radain aa aaa 61 6 2 USEF LOG OM Off seeriaid cg eet ibe t fafa eet eege plat aaia aae aiaeei dens 62 6 3 View e ett TE 62 Cid G rrent USET sissies a a ENa a Ea aa a aaa E 62 TA E eoe ne DEE 63 FeV Star Stop LOggiN BET 64 Ze Select Points for L pOIpg 2ge geegene getest Edge degt deeg dree RAS 65 Ka History TTT 66 7 3 1 Accessing History Eiles 66 T32 View History Plot nsostni encensada raaa aaia aae raaa aia aeaa 66 7 3 2 1 History Plot Time Setup c ccceeccecceeeeeeeeeeeeeeceeeeeceaeeesaaeseeeeeseaeeesaeeseeaeeeeeeeeaas 67 7 3 2 2 History Plot Channel Getup 68 7 3 3 View Averages Report ccccccccccseeceeneeceeeeece
70. e attempting any file utility operations or the EZT 560i will indicate a file transfer memory stick error 69 Cincinnati Sub Zero EZT 560i User Manual When files are being copied to the memory stick a directory for each file type will be created to store the copied files The directory structure is as follows Profile files directory Profiles mm_dd_yyyy hh_mm_ss Alarm files directory AlarmFiles_mm_dd_yyyy hh_mm_ss Audit files directory AuditFiles_mm_dd_yyyy hh_mm_ss Log files directory DataFiles_mm_dd_yyyy hh_mm_ss The reason for using the date and time as part of the directory name is to make sure the user can track the date and time of the file transfer If a user transfers a file tyoe more than once in a single day the files will be grouped logically by time This also prevents the possible loss or corruption of files by preventing them from being overwritten if an existing file has the same name as one being copied The data files can be opened directly with Microsoft Excel or any program that opens a comma separated file format You can copy or empty the DataFiles directory by simply plugging in the USB memory stick in a PC s USB host port This device then becomes like any removable disk attached to the computer and can be manipulated while plugged into the PC Most memory sticks requires no drivers when using Windows operating systems The CSZ Data Viewer program is a free Windows accessory program that allows users to
71. ed however the chambers are typically empty and under no load Unless specific performance tests were performed at the factory for your particular needs the base line performance may not be accurate once your product is placed inside the chamber The one touch tune makes it easy to tune the chamber to your product and performance needs Just run the chamber at ambient conditions and press the AT button on the single loop display screen for the process to be tuned The AT button will remain green for the duration of the tune to indicate it is working Once complete you are ready to test product PID contol when property tuned PID Fuzzy control Temperature Sat point Figure 3 4 Tune Control Response As you change product configurations or other loads within the chamber you can re tune to the new configuration All subsequent tests with that configuration will perform optimally It is recommended that only one loop be tuned at a time so that they do not interfere with the tune of the other loops 25 Cincinnati Sub Zero EZT 560i User Manual 4 Profile Operation A profile is a set of instructions programmed as a sequence of steps The EZT 560 handles the profile steps automatically in sequence The EZT 560i can store hundreds and even thousands of profiles with up to 99 steps in each profile This section covers the use and operation of the EZT 560i profiler To access profile utilities select Profile Entry
72. ed or a remote software package is being used to send ramping sequences to the EZT 560i the profiler is designed to except a one step profile If a one step profile is run the chamber will ramp from its current setpoints to the setpoints of the step It will not immediately take the setpoints of the step Thus by executing one step profiles ramping sequences can be executed when required and not on predefined time intervals This is especially useful and simplifies programming when custom software applications are being used to control the chamber 4 How do l enter a jump step A jump step is a normal profile step however instead of continuing to the next step of the profile when the step is complete the profile jumps to a specified step To enter a jump set the step number you want to the profile to jump to and the number of times that the jump is to take place into the step you want to jump from When that step is complete the jump settings will tell the profile to jump to the specified step until all jumps have taken place The next time the jump step is executed after all jumps have taken place the profile will continue on to the next step of the profile 5 Why is the profile not coming out of Hold If an alarm condition is present on the EZT the profile is automatically placed into hold The alarm condition must be cleared in order for the profile to resume operation 39 Cincinnati Sub Zero EZT 560 User Manual
73. eed the output capabilities of the EZT 5607 Note that the provided connection may have terminals for all four available outputs however your chamber may be equipped with only one based on purchased options If you are having trouble with getting an output to operate first make sure that it is available on your chamber E Exceeding the recommended load impedance for the output will cause signal degradation and may damage the output Use care when connecting remote devices and make sure they stay within output capability Configure the EZT 560i s output for the desired signal level and cycle power prior to connecting the load device Output Specifications Voltage Output Current Output Output Range 0 10Vdc 4 20mA Load Impedance 2K ohm minimum 300 ohm maximum Applicable Load resistive Total Error 1 of full scale 87 Cincinnati Sub Zero EZT 560 i User Manual 8 6 5 Digital Inputs The EZT 560 digital input option provides eight digital inputs which can be used to start and stop a profile hold a profile or control optional event outputs If your chamber is equipped with the digital input option this menu item will be appear in the I O menu list With this option electrical connections are provided on the chamber for external connection to each input The digital inputs can be configured to work on either a low to high transition or a high to low transition Upon seeing the selected transition the input wil
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75. eenan nesenam nenna 107 9 3 5 Using the VNC Servet sirrinin aana iNanaRK ARARKEN AKRAN RANNE KNERAR KARRA RK RNNE 109 9 3 5 1 Accessing the EZT 560 through a VNC Viewer 109 10 RERUN Sch oat ct atest ea ee aeee ea a E Aaa ee aAa ane aeeai devant 111 10 1 Alarm Codes and Troubleshooting c ccceccecceeeeeeeeeeeeeeeeeeeeeaeeseaeeseeeeeseaeeesaeeeeaaeseeneee 111 10 2 Service Monitors eesesesesesesesesessssrsrseseereiiriuiririuiuititititttitkti ttit tt ttrt tE EErEE EEEE EEEn E et 115 Appendix Common Terms and Definitions List of Figures EZT 560 User Manual Cincinnati Sub Zero 1 Overview This manual has been tailored to cover all of the specific features and options available on the EZT 560i environmental chamber controller Note that all options and or features may not be available for your particular chamber It is highly recommended that you read this manual thoroughly and understand all aspects of the EZT 560i s controller prior to operating your chamber 1 1 Safety Information Note caution and warning symbols that appear throughout this manual are to draw your attention to important operational and or safety information 4 A NOTE marks a short message to alert you to an important detail E A CAUTION safety alert appears with information that is important for protecting your equipment and performance A WARNING safety alert appears with information that is important for protecting you A others an
76. egisters to be read num The is an optional symbol so programs like ICS s GPIBKybd program can recognize the command as a query and automatically read the response Responses are returned as 16 bit decimal values separated by commas R 61 1 reads EZT 560i loop 1 process value Example response is 527 for 52 7 degrees R 60 3 reads three successive registers for loop 1 SP PV and Out Example response is 550 527 10000 for SP of 55 0 PV of 52 7 and Out of 100 00 W reg w Write Register Command writes EZT 560i data values Writes one 16 bit word w to one EZT 560i register reg W 60 550 writes a setpoint of 55 0 to loop 1 WB reg num w 0 w n Write Block Command writes EZT 560i profile steps Writes multiple 16 bit words wi to multiple registers Starting register reg Number num specifies how many words are to be written E Read Error Command Reads and clears the Modbus Error Register and bit 6 in the Event Status Register Returns an error code whose value is 0 to 255 0 No errors present 1 Exception Code 1 2 Exception Code 2 3 Exception Code 3 100 CRC Error 101 Timeout Error indicates no characters received 2nn Partial or corrupted message nn is number of received bytes 100 EZT 560i User Manual Cincinnati Sub Zero 9 3 Ethernet Communications The EZT 560i provides two forms of Ethernet communication interfaces for monitoring and controlling the chamber across a networ
77. em Each one can be configured to receive emails SMS text messages or both Whenever an alarm occurs the EZT 560i will send an alert to the specified address for each user in the list 5 10 1 Address Entry Select the Address Entry tab to add new addresses to the system For each entry enter the recipient s name email address and or SMS address Then check the email alarms and or SMS alarms check box s to specify which address s the alarms are to be sent to Press the Create Address button to add the user to the list Address Entry Email Addresses Email Settings Name Brad Johnson Email Address iohnson mycompany com SMS Address 0123456789 phone com Email Alarms L SMS Alarms v Create Address Figure 5 10 Create Email Address rt The SMS address is specific to the service provider Each service provider has their own unique address however the phone number is always the name for the address entry Below are common examples for some of the more common cell phone providers There are internet sites with this information that cover most of the providers or when in doubt contact your service provider for the proper address format SMS Address to use where 0123456789 is an Cell Phone Provider Maximum message length example for a 10 digit cell phone number Cingular 150 characters 0123456789 mobile mycingular com Cingular GSM 0123456789 cingularme com Cingula
78. entative of those on a standard temperature and humidity chamber The screens and examples shown within may vary slightly from your chamber based on installed options and type of chamber EZT 560i User Manual Cincinnati Sub Zero 1 3 Touch Screen Interface The EZT 560i display is divided into three main sections the menu bar main display area and detail window View Profiles Setup Security Log Help Menu Bar Chamber Light On Off Print Screen Detail Window eer Figure 1 2 Touch Screen Interface Menu Bar Used to navigate through the available monitoring and control screens Main Display Area Contains the active items for the menu item selected Detail Window Provides display specific information There are two special control icons located at the lower right corner of the screen in the detail window Light Icon Turns the interior chamber lighting on and off Printer Icon Prints the currently displayed screen to an HP 6540 6940 or 6980 color printer connected to the controller s USB port see Section 1 4 Print Features To select items on the display simply touch the desired text or numerical entry item For detailed information regarding the different screen elements and their use reference the following sections Do not use any sharp or metal objects on the touch screen as they may damage the surface Cincinnati Sub Zero EZT 560i User Manual 1 3 1 Menu Navigation The EZT 560i display provides the user
79. enter cold chamber and two outer hot chambers Since DTS chambers shuttle product from left to right and vice versa the events describe the transfer positions as XFR LEFT and XFR RIGHT Liquid bath thermal shock TSB chambers typically include a third position which is an ambient zone The ambient zone removes the basket from the liquid baths and allows the operator to load product into the basket This position uses the UNLOAD event 23 Cincinnati Sub Zero EZT 560 User Manual When a position event is selected the other event s will be automatically turned off and the basket will transfer to the selected location If there is a failure in the mechanism and the basket does not reach its intended position the TRANSFER ERROR alarm will indicate this fault The selected transfer event will then be turned off automatically and the transfer mechanism will not try to transfer the shuttle again until the operator enters a new position selection NOTES on transfer operation Manual Transfer Selection When operating thermal shock chambers the typical operation involves transferring product from a hot side to a cold side Since the transfer event selections work like radio buttons that is when one is pressed the other turns off you can use this for repetitive manual transfers without having to select and deselect the different events For example if you place a check in both the transfer hot and tra
80. er must enter one in order to save the profile Save As Allows the user to save the current profile to a different file name This is useful for making different versions of the same profile that only requires minimal changes Delete Profile Allows the user to delete the current profile 27 Cincinnati Sub Zero EZT 560i User Manual 4 1 1 Selecting Step Events For each step of the profile you must select which events are to be on during the step To enter the step events press the Step Events button This opens the step event entry window From this window select the events that are to be on during the step Once the selections are complete return to the profile entry screen by pressing the Back to Step Data button Back To Step Data Press Update button to update events COMM RTS OM Humit COMM aux cooune Figure 4 2 Profile Step Events The step events must be set individually for each step Also for the chamber to operate the relevant chamber systems must be turned on via the event entry window Even though a profile may be in operation if the events are not set the chamber will not run 4 1 2 Selecting Guaranteed Soak GS Events The GS Events are used to turn on the guaranteed soak option for one or more of the controlled loops In order to enable a guaranteed soak in a step you must select the loop s to be monitored by turning on the corresponding event To enter the GS events press the GS Even
81. es Will automatically reset in 4 hours Can be manually reset via alarm monitor screen Unit will not run with pumpdown disabled Input SENSOR BREAK Check sensor wiring for indicated input Verify lead connections If sensor requires power i e humidity altitude etc verify power to sensor Replace sensor SYS HILO PSI Refrigeration system system number high or low pressure safety tripped High pressure safety requires manual reset Check condenser for blockage clean if necessary Low pressure will automatically reset Check static pressure for possible leaks Service and further diagnostics require authorized certified refrigeration service personnel SYS LOW OIL PSI Refrigeration system system number oil pressure safety tripped Check compressor oil level Requires manual reset Service and further diagnostics require authorized certified refrigeration service personnel SYS HI DISCHARGE TMP Refrigeration system system number discharge safety tripped Check liquid injection solenoid Automatically resets Service and further diagnostics require authorized certified refrigeration service personnel SYS COMP MONITOR Refrigeration system system number compressor protection module tripped Check fusing and contactor for proper operation Automatically resets after approximately 30 45 minutes Service and further diagnostics require authorized certif
82. es navigation back to the online chamber setup screens Setup Menu The Setup menu provides access to the service monitors and system settings I O Menu The I O menu provides configuration access to the EZT 560i s digital and analog inputs and outputs Help Menu The help menu provides simple help regarding settings and use of screen parameters as well as the current software version number under About EZT 560 Le EZT 560i User Manual Cincinnati Sub Zero 1 4 Print Features The EZT 560 interface will print a variety of graphic trend and text reports It can be connected to a standard USB inkjet printer HP model 6540 6940 6980 via the standard USB host port provided on the chamber No drivers are necessary operation is plug and play Note that the USB port can be used for memory stick data backup and printing by hot swapping at any time during the EZT 560i s operation The EZT 560i will alert the user to any problems during the print operation After a print error printer not connected or bad cable the EZT 560 will return to its normal operation after alerting the user The EZT 560i interface may change background colors during printing to prolong ink cartridge life blue backgrounds require more ink than white backgrounds The EZT 560i interface will be locked until the print function is complete and then return to normal operation When using the HP 6940 or 6980 DeskJet prin
83. eviation band changes with it so you always maintain an air temperature control range around the product setpoint This provides a stable and accurate control method throughout the product s test range Knowing what values to set for the lower and upper setpoints may require some trial and error A good starting point is to run a simple air temperature control test where you set the air temperature setpoint no product control to the upper test setpoint and then the lower test setpoint in order to see how the product responds to the changing air temperature During the transitions monitor the difference between the air temperature and the product temperature Using the maximum difference observed double the value and use that as the lower setpoint The upper setpoint should then be set to four times that difference The reason for the larger offset on the heating side upper setpoint is due to the fact that when air temperature increases its density decreases Cooler air is more dense and thus has a greater heat content than warmer air This increase in density transfers more heat between the product and air than at warmer temperatures Therefore a larger deviation is required at warmer air temperatures in order to maintain the same rate of heat transfer with the product Process Control If there is a minimum and maximum air temperature that the product can be exposed too which is or very close to the minimum and maximum product temperature
84. ewpoint that the chamber can operate safely without causing potential damage to the refrigeration system Set temperature and humidity setpoints to within allowable chamber range no audible alert is associated with this indicator DOOR AJAR Chamber door is open If the chamber is equipped with a door switch to stop chamber operations when open the indicator will be lit SERVICE FANS Service alert if enabled indicating that the prime air movers of the chamber require regular maintenance Perform service and clear elapsed service count for corresponding components SERVICE COND SYS Service alert if enabled indicating that the heating and or cooling system components require regular maintenance Perform service and clear elapsed service count for corresponding components SERVICE HUMIDITY SYS Service alert if enabled indicating that the humidity system components require regular maintenance Perform service and clear elapsed service count for corresponding components SERVICE PURGE SYS Service alert if enabled indicating that the dry air purge system components require regular maintenance Perform service and clear elapsed service count for corresponding components SERVICE ALTITUDE SYS Service alert if enabled indicating that the altitude system components require regular maintenance Perform service and clear elapsed service count for corresponding components SERVICE XFER SYS Se
85. f the checkbox is selected the user right will be enabled for the user level currently being edited The Select All and Clear All buttons will select or clear all rights in the user rights list view You must press the Accept button for each user level to save the selections for that user type before selecting another user type from the drop down list or entries made will not be saved 60 EZT 560i User Manual Cincinnati Sub Zero Add User Users User Rights Security Options User Group Userights Operator D Di Trend Setup C Bararaph Limits Press Accept Change Setpoints after assigning Open Files each group O Save Files Delate ss 4 Select all Clear ai Figure 6 4 Security User Rights You must have at least one user with administrator access and the Access Security right option enabled in order to turn on security There is no back door to the system If the password is lost or forgotten you must contact Cincinnati Sub Zero s Service Department for support 6 1 4 Security Options The Security Options tab provides the administrator the ability to set the global security options Add User Users User Rights Security Options Enter Number Of Days Before Eu Password Renewal Is Required 1 Re authenticate User During J Process Changes Enable Disable Audit Trail i Enable Disable Security Accept Figure 6 5 Security Options
86. ffect will be dependant upon your test conditions Under some conditions product control may have to be turned off in order to achieve the test results you require or more extensive or tighter product control setpoint adjustments may be required 51 Cincinnati Sub Zero EZT 560i User Manual 5 7 Condensation Control The optional condensation control feature is for situations in which condensation is undesirable or detrimental to the product being tested When enabled the rate of rise in temperature is limited in order to allow the humidity control system to strip moisture from the chamber in order to keep the dewpoint of the air below the product temperature If the dewpoint of the air were to exceed the product temperature moisture could form on the product s surface Condensation Control Off Temperature Ramp Rate Limit 2 0 Dewpoint 35 4 DP Limit 37 3 Monitor Mode Input Selection D S Single Input GES proouct om Low Input m Hi Input Figure 5 7 Condensation Control There are many factors that can affect the performance of the chamber including product placement mass of product and air distribution throughout the chamber The required ramp rate limit will be affected by these factors It may take a little trial and error to determine what setting is best for your testing needs Ramp Rate Limit Adjustable ramp rate limit Valid range is from zero to 10 0 18 0f Note that a limit setting of zero will have no limiti
87. file Run The log on profile run option is a convenient method for gathering information that pertains only to the operation of a profile When selected the EZT 560 will turn the logger on at the beginning of a profile and off once the profile is completed Q The EZT 560i will automatically use the profile name as the prefix for the log file This provides an easy identifier for log files that pertain only to a profile run 65 Cincinnati Sub Zero EZT 560i User Manual 7 3 History Files Historical files are stored on the internal compact flash memory of the EZT 560 The files can be opened and viewed in a trend graph 7 3 1 Accessing History Files The data logging Edit menu provides four options for handling stored historical files Open History File Allows the user to select a history file for review Delete History File Allows the user to delete the currently selected history file This function will not delete a currently running data file File Utilities Allows the user to copy files to a memory stick from internal storage as well as delete files See Section 7 4 File Utilities for more information FTP WAN Setup Allows the user configure the EZT 560i to automatically back up data files to a designated FTP server and erase local copies of files See Section 7 5 FTP WAN Setup for more information 7 3 2 View History Plot In order to view a historical data file it must first be selected by using Open Histo
88. for them to perform or what they are monitoring To alter the tag names select Process Alarm Tagnames from the Setup menu Tagname TEMPERATURE Alm Message TEMPERATURE ALARM Figure 5 4 Process Alarm Tagnames To change a tag name select it by touching its current description Use the keypad to enter a new description Once complete select Done and the new name will appear in the tag name list field Once the change is complete press the Set button to save the changes to memory and begin using the new tag name If the changes are not accepted the new tag names will not be used and the EZT 560 will continue to use the previous labels 44 EZT 560 User Manual Cincinnati Sub Zero 5 5 Alarm Settings The EZT 560i provides user configurable alarms for each input The alarms are activated when the process value leaves the selected range A user can configure how and when an alarm is triggered what action it takes and whether it clears automatically when the alarm condition is over or requires manual reset Alarm Type Alarm Type INO ALARM GE Alarm SELF CLEARS vf CLOSE ON ALM e Modes AUDIBLE OFF e B CONTINUE A lef Elei OT USED e Low SP 80 0 Hi SP 200 0 DB 0 1 Figure 5 5 Alarm Settings Process A process alarm uses one or two absolute setpoints to define an alarm condition A process alarm can be set for high only low only or both high and low Deviation A deviation alarm u
89. function manually 22 EZT 560 User Manual Cincinnati Sub Zero 3 2 2 Special Chamber Options Depending upon the type of chamber or installed options there are several other events that may be listed on the manual event screen They will be used in conjunction with the optional equipment to initiate or control the process related to that option 3 2 2 1 Altitude Operation The altitude event turns the chamber s altitude system components on and off Altitude chambers are specifically built to withstand atmospheric pressures They have heavy gauge liners with additional internal structure for reinforcement They simulate altitude by utilizing a vacuum pump to draw air out of the chamber and may also use compressed air to increase chamber pressure if altitudes below site level are required The EZT 560i converts the resultant pressure within the chamber into feet thus altitude can be entered directly in feet The altitude system can operate independently of the chamber conditioning system NOTES on altitude system operation Chamber Temperature Control Limitations As altitude increases the air density within the chamber decreases The heating and cooling systems require a minimum amount of air flow in order to operate correctly and control the internal chamber air temperature The altitude system will inhibit the operation of the heating and cooling systems when the altitude increases beyond the design limits This limit is typically aro
90. h can be used to control optional digital outputs When a digital output is configured to be controlled by the digital input it will turn on when the input is on and off when the input is off Oo For the output control modes the on state for the input is defined by the transition mode If Lo to Hi is selected the input is on when voltage is applied to the input If Hi to Lo is selected the input is on when voltage is removed from the input 89 Cincinnati Sub Zero EZT 560i User Manual 8 6 5 1 Digital Input Wiring Locate the digital input connector on your chamber Figure 8 19 is a representation of the typical digital input connection provided on most chambers however as changes and or improvements are made your specific connection style may vary It is recommended that all wiring be of the shielded type Only connect the drain wire of the shielded wiring at your device or the chamber not both Connecting the shield to ground at both ends of the cable can induce unwanted noise into the input wiring Improper and or poor wiring practices can cause interference on the digital inputs which may cause erratic or uncontrolled operation DIGITAL 24 DC 2 wire Sensor INPUT 1 r INPUT INPUT 3 eee INPUT 4 INPUT 5 INPUT 6 PNP INPUT A INPUT 8 24V DC COMMON Sch CONSULT MANUAL Figure 8 19 Digital Input Wiring The digital inputs will work with either transistor or potential free relay
91. h setpoint defines the process value that will trigger a high side alarm It must be higher than the alarm low setpoint The alarm low setpoint defines the process value that will trigger a low side alarm It must be lower than the alarm high setpoint An alarm state is triggered when the process value reaches the alarm high or alarm low setpoint The alarm hysteresis or deadband DB defines how far the process must return into the normal operating range before the alarm can be cleared High Side Alarm Range Alarm High Set Point d Alarm Hysteresis Normal Operating Range Tarte dure V Alarm Hystarasis Alarm Low Sat Point Low Side Alarm Range EZT 560 i User Manual Cincinnati Sub Zero 5 6 Product Control If the chamber is equipped with a product control loop this screen will be accessible from the Chamber Setup menu Uses Event For Enable Disable B oven om Lower Setpoint Upper Setpoint Figure 5 6 Product Control Product control is a control strategy in which one control loop provides the setpoint for another loop It allows the process or part temperature to be reached as quickly as possible while minimizing overshoot Product control can be used to optimize the performance of chambers containing product with long thermal lag times If only single loop control is used air temperature for example the air will reach its designated setpoint and the chamber will hold at this temperature However the part
92. hat the EZT 560i is properly connected to the network and that the FTP site is valid Q This alarm does not affect chamber operations It is an indication only alarm No audible alert is associated with this alarm LOOP COMMS FAILURE Check communication wiring between gateway communication module and 9300 loop controls Verify proper addresses on 9300 controllers Verify power to 9300 controllers Check rear terminal plug on 9300 controllers and make sure it is seated properly MOTOR OVERLOAD Motor overload tripped or motor drive fault Requires manual reset of motor overload Check drive and motor fusing Check motor for overload condition i e bearing wear binding shaft etc Replace fuse repair replace motor or drive NTS Ping Failed Check Cable Indicates that the EZT 560i was unable to synchronize its clock with the selected national time server Verify that the EZT 560 is properly connected to the network and time server selected is accesible Q This alarm does not affect chamber operations It is an indication only alarm No audible alert is associated with this alarm PRODUCT SAFETY Optional product safety limit tripped Manually reset limit to clear alarm Check limit setpoints and verify properly set for product testing 112 EZT 560 User Manual Cincinnati Sub Zero Alarm Monitor Description Corrective Action PUMPDOWN DISABLED Chamber power off for more than 30 minut
93. hronize its time with the selected national time server at 2 00AM each day If the EZT 560i is not connected to the internet a local alarm message will occur NTS Ping Failed Check Cable to indicate that the time server could not be located 77 EZT 560i User Manual Cincinnati Sub Zero Q The EZT 560i must have a valid connection to your network for the timer server to operate The EZT 560i receives its IP address from DHCP on your network and it only occurs during boot Therefore make sure the EZT 560i is properly connected to your network and cycle power to the EZT 560i in order to obtain a valid IP address and be properly connected to the network 8 3 2 DST Settings Select the DST Settings tab to configure daylight saving time options The daylight savings time options allow the user to set the start date and end date for daylight savings time Set Time Time Options DST Settings DST will start end at 2 00AM on Year Day Month Start 2007 8 3 Year Month End 2007 11 Daylight Savings Enabled Save Figure 8 6 Daylight Savings Time Settings If your area utilizes daylight savings time set the start and stop dates for daylight savings and check the Daylight Savings Enabled checkbox Press the Save button to store the settings The EZT 560 will then automatically update its clock for daylight savings time Ho If the NTS time server setting is enabled and the selected time zone uses dayligh
94. ied refrigeration service personnel TRANSFER ERROR Transfer fault Check for mechanical obstructions in basket transfer mechanism Verify proper sensor locations and operation for proper basket position indication ER An audible alarm will sound for all system alarms other than the indication only alarms noted The audible alarm can be disabled for input alarms if desired by selecting Audible Off for the input s alarm mode see Section 5 5 Alarm settings All view screen backgrounds will turn red on alarm 113 Cincinnati Sub Zero EZT 560 i User Manual System Status Monitor Description Corrective Action RH H2O RESERVOIR LO Optional Humidity water reservoir low Add more water an audible alert is associated with this indicator RH TMP DISABLE Temperature outside allowable humidity operational limits Turn off humidity system or set temperature setpoint within proper operating range no audible alert is associated with this indicator RH HI DEWPOINT LIMIT EZT 560 is limiting the maximum humidity level based on the maximum allowable dewpoint that the chamber can operate safely without causing potential damage to the structure of the chamber Set temperature and humidity setpoints to within allowable chamber range no audible alert is associated with this indicator RH LO DEWPOINT LIMIT EZT 560i is limiting the minimum humidity level based on the minimum allowable d
95. ield to ground at both ends of the cable can induce unwanted noise into the wiring and subsequently your device If using the digital inputs for controlling other relays coils or powering small devices the wiring method is at the operator s discretion but a minimum of 16AWG wire is recommended Low voltage signals can become quickly degraded when using smaller gauge wire due to the resistance of the wire over long distances 92 Le EZT 560 User Manual Cincinnati Sub Zero Load Fuse ac DC De EVENT OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5 OUTPUT 6 OUTPUT 7 OUTPUT 8 COMMON COMMON EMENT OUTPUT 9 OUTPUT 10 OUTPUT 11 OUTPUT 12 OUTPUT 13 OUTPUT 14 OUTPUT 15 COMMON COMMON CONSULT MANUAL Figure 8 21 Digital Output Wiring The digital outputs are potential free dry contacts divided between two common headers Each output is rated for 2A of current with a maximum of 8A per common line If all outputs are being used the sum of the current must not exceed 8A Digital Output Specifications Voltage Input Maximum Load Current EE 8A per common line Minimum Switching Load 0 1mA 0 1Vdc reference value Response Time 1 7 seconds maximum 93 Cincinnati Sub Zero EZT 560i User Manual 9 Communications This section covers the connection to and basic use of the EZT 560i communication interfaces As a standard the EZT 560 is equipped with both EIA 232 and EIA 48
96. in the buffer and thus makes it an invalid command The communication rate of the host computer must be set to take this into account when multiple EZT s are on the same serial link Once the host computer receives a response from an EZT it must wait a minimum of the timeout period before sending a command to the next EZT on the link Otherwise the command may not be seen by the desired controller and it will not respond causing a communication failure 9 1 2 EIA 232 Connections To connect the EZT 560i to a PC s serial port a null modem cable is required This type of cable is designed to allow two devices to communicate with each other via their serial ports This cable differs from that of a standard cable in the fact that the transmit and receive wires are reversed If one is not available a cable can be fashioned rather easily Use a high quality shielded cable and connect the leads as shown below PC Serial Connection EZT 560i Serial Connection Description Pin Pin Description Shield Cover Cover Shield TXD Transmit Data 3 3 TXD Transmit Data RXD Receive Data 2 2 RXD Receive Data Signal Ground 5 5 Signal Ground Connect the cable between the EZT 560i s serial port and the desired serial port on the PC COM1 if using CSZ EZ View Make sure that the serial port settings of the EZT 560i and the host computer match and be sure to save any changes to the EZT s Modbus settings Cycle power to
97. in the chamber may take hours or even days to reach this temperature due to its thermal mass The reason for this is the fact that as the part temperature approaches the air temperature the difference between the part temperature and the air temperature decreases This difference in temperature is what forces the heat to move between the part and the air The lower this difference the slower the heat moves The composition of the product material whether it is a natural insulator or conductor also affects this rate of heat transfer The product control feature can be used to speed up this process and insure that your part reaches the desired temperature as quickly as possible It does this by monitoring the part temperature through the product control loop and based on the setpoint for product temperature generates a setpoint for the air temperature control loop This setpoint is then automatically fed into the air temperature control loop This allows the air to exceed the desired product temperature and increase the temperature difference between the part and the air This accelerates the transfer of heat between the air and product under test There are two modes of operation for the product control feature deviation and process These modes define how the air temperature setpoint is calculated Deviation This mode uses the lower and upper setpoints to generate a setpoint that is defined relative to the product setpoint The upper and lower
98. ion Corrective Action DEHUMID SYSTEM FAULT Optional dehumidifier system fault Check manufacturer s manual provided with the chamber for troubleshooting and diagnostic information Email Error Check cable or server down Indicates that the EZT 560 was unable to send an alarm message through the mail server Verify that the EZT 560i is properly connected to the network and that the email server entered is valid Q This alarm does not affect chamber operations It is an indication only alarm No audible alert is associated with this alarm EMERGENCY STOP Investigate cause of stop Verify conditions are safe Reset emergency stop Will require manual restart of chamber via manual event screen or resuming profile if profile was operating when stop occurred FLUID SYS TEMP Fluid system high temperature safety tripped Limit must be manually reset or power cycled to chamber to reset Verify fluid level and flow Do not set temperature setpoint above fluid system design limits FLUID SYS HI PSI Fluid system exceeded operating pressure limits Check for restrictions in fluid system Verify all isolation valves are open Reset high pressure safety FLUID SYS LOW FLOW Fluid flow safety tripped Verify fluid level Check for restrictions in system Check pump operation and service if necessary FTP Check cable or server down Indicates that the FTP back up attempt of the data files failed Verify t
99. ipge piaua aa Ae A AAEREN 80 DAVE REJI SUV EE 80 LGD Seting S iaieineea ana aeiiae aaeain enuia diain 81 Special ue EE 82 0 el te n EE 83 Analog ele 84 Analog Input Wiing sanaiadi anaidai gierend aaia naa 85 Analog ef 86 Analog Output Witng eeeeeeeeeee cece eeeeaeeeeeaeseceeeeceeeeeeaeeeeaaeseneeeseaeessaeeseeeseeeees 87 Digital IPUtS cc2ec lt ccuetcevescen doc etiaatgls hee caacediie tes seapidsuaasnte aiaia a ieia aaaea 88 Digital laput WING is cc ceeescceceecessctechcedacecsieatea sea cdsdyenscien sania dekdanaceveke cdgerivantevede cadetien tease 90 Digital Qt LCE 91 Digital Output Wiring e ee eect eeeeeeeete eee eeeeeeee eee ee ee aeeeeaaeeeeeee sae eeeaaeegeeeeseeessaeeseeeseenees 93 Communications Connector essseesseesseesseesseessntrtnastnnetn nett netnnstnnsstnsennsennsennnsnnatnnnna nnns 94 Modb s Setting EE 95 Seral POM Mode sceversestivvsadecttesdesstiessevarvetagadinseadecisnsoeadaveaseaivetevaciiaeadecteaseaisiveaaecstvebessting 97 MAG e 103 Exit A POUCA OM EE 104 Enabling the kevboard AAA 104 Network and Dial Up Connections sssssssssssseessisssiesitsrissiestinttinttnnttnnntnnntnnntnnennnnn nnet 104 Network CONNEGHONS ss isissecsdesssetsenasssisadadesssaxseeeesadeesessanseasissddbesscadesecsadbevsisazwentiedvadeaces 105 Ethernet Kl 105 My COMPUTE gege cask acess annarai tage a sca aaa gues Sup aaee aea aiia 106 elle ee EE 106 Web Server Settings cccccecccececeeeeeeeeeeececeeeeeeaae
100. it too tight could prevent the profile from operating correctly because the chamber may not be able to control to such a tight band setting A typical band setting would be 1 1 8F for temperature 4 for humidity and 1Kft for altitude Once the desired bands have been set press the Done button to return to the profile entry screen The soak limits are saved with the profile When changing the soak band settings be sure to save the profile in order to update the profile with the new settings This insures that each time the profile is loaded and run the chamber will control to the proper band settings 33 Cincinnati Sub Zero EZT 560i User Manual 4 4 Plot Profile The profile can be viewed by using the plot profile utility This allows you to see if the profile you programmed matches the expected profile appearance To view the profile select Plot Profile from the profile Views menu 50 0 40 0 30 0 20 0 10 0 0 0 Mins 0 TEMPERATURE Figure 4 8 Profile Plot The EZT 560 will automatically generate a graphical representation of your profile and display it on the screen The Y axis auto scales to fit the range of setpoints entered in the profile The X axis auto scales to the total time duration of the profile Note that jump steps are not shown on the plot profile graph 34 EZT 560 User Manual Cincinnati Sub Zero 4 5 Start Stop Profile To start a profile it must first be loaded The currently loade
101. k The web server interface provides a monitor only interface while the VNC server interface allows a user to manipulate and control the chamber remotely by viewing the EZT 560i display directly on their PC screen Q In order to use Ethernet communications the EZT 560i must be properly connected to a network To connect the EZT 560i to a network connect the chamber s Ethernet port to your network using a standard CAT5 cable connection After connecting the network cable you must cycle power to the EZT 560i The EZT 560i receives its IP address using DHCP on your network and it only occurs during boot Therefore make sure the EZT 560i is properly connected to your network and cycle power to the EZT 560i in order to obtain a valid IP address or the Ethernet communications will not operate COM LED indicates Ethernet communication When the EZT 560i is connected to the network the COM LED will flash to indicate that data is being transferred over the Ethernet connection However this does not mean that the EZT 560 is part of the network Remember that power must be cycled to the EZT 560 after it is connected to the network in order to automatically obtain its IP address Without a valid IP address the EZT 560 will not be part of your network 101 Cincinnati Sub Zero EZT 560 User Manual 9 3 1 Guidelines of Smart Networking Practice The expansion of Ethernet onto the industrial floor has brought forth a new realm of
102. l perform the action selected from the input mode list To configure a digital input select Digital Inputs from the I O menu Digital Input Transtion TT Digital Input Function fa wi RW Loto Hi le fl none W too O tt Profile BB Pause Profile BB Resume Profile A Terminate Profile Figure 8 18 Digital Inputs To configure an input first select the input number by entering the value in the Digital Input field Upon entering the value the input s current configuration will be loaded and indicated by the LED s next to the selected transition mode and function To make changes to the input s configuration place a check in the box next to the desired transition mode and function for the input Once all changes have been made press the Accept button to save the changes If you do not press the Accept button all changes will be lost if you leave the screen or enter a new digital input number Q More than one digital input can be configured for the same function If more than one is set for the same function make sure that they do not interfere with each other or the selected function they are to perform may not operate correctly Transition The transition mode selects the change in input state that makes the input perform the required function The profile functions as defined below are triggered by this transition Lo to Hi This setting sets the input up to perform the desired function when the inp
103. le name will automatically be used as a prefix for the log file To manually start the logger press the Logging On button controller variables must be assigned first by selecting the Select Points For Logging menu item Any time logging is operational the Logging On button will be green Logging On Days before new file is started Ew Man Log Interval Secs Ten Auto Ri DATA LOGGER IS OFF Figure 7 1 Start Stop Datalogging The logging rate can be adjusted on this screen by changing the value for the Days before new file is started and Man Log Interval parameters These allow you to select how long the data file will be as well as what logging rate to use Days before new file is started The length of a data file can be set for 1 to 31 days Once the selected number of days has elapsed a new data file will be created and logging will continue in the new file Man Log Interval Secs When the auto checkbox is selected the logging interval will be automatically set to record at minute intervals based on the number of days set for the file If the file is set for 1 day in length the logging rate will be at 1 minute intervals If the file is set for 7 days then the logging rate will be every 7 minutes This keeps the data file size manageable and able to be viewed by the EZT 560i s data viewer The logging rate can also be manually set to any rate between 6 and 1860 seconds in any co
104. mbination with the number of days before a new file is started To do this de select the auto logging rate field and enter in the desired logging rate in seconds Q Logging at smaller intervals allows the EZT 560i to capture fast changing processes within the chamber but the data files can become large Files that exceed the capability of the EZT 560 s data viewer will have to be extracted from the EZT 560i using a USB memory stick or FTP file transfer in order to be viewed remotely on a PC 64 EZT 560 User Manual Cincinnati Sub Zero 7 2 Select Points for Logging The Select Points for Logging screen allows the user to select any point s from the system for data logging The Select All and Clear All buttons provide a quick way to select or deselect all points in the system Select datalog points and press Accept Points to Log vi TEMPERATURE TEMPERATURE SP TEMPERATURE Out HUMIDITY uy Ww A a gt E Log On Startup Log On Profile Run Figure 7 2 Logging Setup Use the checkbox to enable disable a point for logging When selections are completed press the Accept key to write the point selection to memory This is important so that the EZT 560i saves the settings for power up operation New settings will not take effect until the Accept button is pressed Log On Startup The log on startup option automatically turns logging on whenever the chamber is powered on Log On Pro
105. me is complete the profile will jump to the specified jump step rather than continuing on to the next step in the profile After all of the programmed jumps have been completed the profile will then continue to the next sequential step in the profile without making any further jumps To program a jump enter the step number that you want the profile to jump to when the step is complete along with the total number of jumps to be made A jump count of zero on a step indicates that no jump will be made once the step is complete regardless of what the jump step number is set to Jump Step Sets the step number that the profile will jump to upon the completion of the step The profile will only jump to this step if the number of jump counts is greater than zero Jump Count Sets the number of jumps that will be made from the step Once all jumps have been made the profile will continue on to the next step in sequential order The jump count defines how many jumps will be made Thus if you wish to perform 10 cycles within a profile your jump count will be set to 9 10 minus the 1 you performed prior to reaching the jump Example Product is to be loaded into the test chamber at ambient conditions cycled between 85 and 40 for 10 cycles and then returned to ambient temperature so that it can be removed in order to load the next test sample Step 1 Start at 25 Step 2 Ramp to 85 Step 3 soak at 85 Step 4 ramp to 40 Step 5 soak at 40
106. mining Ramp Rate In order to enter a ramp rate you must calculate the time it will take to go from the previous step s setpoint to the current step s setpoint For example if you desire a ramp rate of 5 degrees per hour from the previous step s 20 degree setpoint to the new 85 degree setpoint the step time will be the difference in temperature 65 degrees divided by the rate of 5 degrees per hour This equates to a time period of 13 hours Thus the step will have a setpoint of 85 degrees with a step time of 13 hours Q A step time of zero can be entered for a step to implement an immediate setpoint change This will cause the chamber to go to the setpoint as quickly as possible When used in conjunction with a wait for on the following step there is no need to know the time it takes for the chamber to achieve setpoint The wait for can be used to trigger the next step typically a soak so that the desired soak time is achieved without having to determine what additional time may be needed in order to make sure the chamber reaches setpoint before starting the soak time 30 EZT 560i User Manual Cincinnati Sub Zero 4 1 5 Using Jumps The jump allows the profile to jump between different steps within itself This is useful for repeating the same ramp soak combination during extended cycle testing of product When a jump is programmed on a step the profile will first execute the step as a normal step however once the step ti
107. n Connections The Ethernet Drivers property window will allow you to set the IP address as well as name primary and secondary DNS and WINS servers from the servers tab if necessary Select Specify IP Address and enter in the desired IP address and subnet mask and or default gateway as required 4 dtsa 27314151617 18 9 0 Tabja wje r t yluli joj ty snit z x c v b n m 1 17 culau DI riel Specify an IP address IP Address 10 1 1 1 inte E Default Gateway Eesen Figure 9 9 Ethernet Driver You can drag the keyboard around on the screen to position it as necessary to access the different fields Once complete close the Ethernet Drivers window by pressing the OK button at the top right of the window Next close the Connection window by pressing the X button at the top right of the window Access the taskbar and hide the keyboard by pressing the keyboard button at the bottom right of the taskbar and select Hide Input Panel DO NOT cycle power at this time You must first save these changes to the registry or they will be lost and the EZT 560 will not use the IP address you specified to connect to the network To save the registry you must access the CECR utility on the storage card of the EZT 560i To do this press the Start button on the taskbar and select Programs and then select Windows Explorer This will open the My Computer window 1
108. n of the typical analog input connection provided on most chambers however as changes and or improvements are made your specific connection style may vary To connect your input signal first make sure that the input type is set correctly on the EZT 560i as described above Next using a quality twisted pair shielded cable connect your input signal to the correct input number Make sure to observe proper polarity when connecting your signal leads Only connect the drain wire of your shielded cable at your signal source or the chamber not both Connecting the shield to ground at both ends of the cable can induce unwanted noise into the signal leads 84 EZT 560i User Manual Cincinnati Sub Zero ANALOG INPUT 1 SN D INPUT e SN INPUT 3 AT Signal Source N che INPUT 4 INPUT 5 Ge CONSULT MANUAL Figure 8 15 Analog Input Wiring Connect only one signal source to each input Note that the provided connection may have terminals for all five available inputs however your chamber may be equipped with only one based on purchased options If you are having trouble with getting an input to operate first make sure that it is available on your chamber Exceeding maximum allowed overload ratings can cause permanent damage to the input Use care when connecting remote signal generators and make sure they can not overload the EZT 560i s inputs Configure the EZT 560i s input for the
109. n the coldest location like the compressor crankcase On start up this refrigerant could then enter the compressor as a liquid and cause permanent damage to the compressor In addition a crankcase heater is installed on the compressor in order to heat the oil in the crankcase of the compressor This helps boil out any refrigerant so that it can be pumped into the high side of the system If the chamber is equipped with the pumpdown mode of operation the Pumpdown button will be provided on the Alarm Monitor screen This provides a manual way to reset pumpdown mode Pumpdown will be automatically disabled if main power is off for more than 30 minutes This is due to the fact that without main power the crankcase heater will be off and can not warm the compressor Depending on the temperature of the compressor this could allow refrigerant to accumulate in the compressor causing a potentially damaging start up The Pumpdown Disabled alarm will notify the operator of this condition The chamber will not operate when pumpdown is disabled Pumpdown will automatically reset after the main power has been on for a period of 4 hours or it can be reset at any time by pressing the Pumpdown button Er If your chamber is equipped with pumpdown main power should remain on at all times If power is removed for extended periods of non use DO NOT reset pumpdown after power is applied to the unit Only silence the alarm Allow for the 4 hour warm u
110. nd or previously silenced alarms according to time and date of occurrence On each new alarm occurrence The EZT 560i s screen background will turn red to notify the user of a new alarm Once the alarm is silenced the screen background will revert to the standard blue background however the alarm condition may still be present The chamber will not restart until all alarms have been silenced and the alarm condition has cleared If the chamber does not restart upon silencing of the alarm verify that all manual reset safeties have been reset and the alarms have been cleared by pressing the Clear button This will remove all alarms from the list If the alarm is still present the alarm condition still exists and must be corrected See Section 10 Diagnostics for alarm codes and corrective actions sence Clear Alarm Description Dae sd PUMPDOWN DISABLED 2 9 2006 Figure 2 6 Alarm Monitor 2 3 1 Pumpdown Chambers with large horsepower refrigeration systems have an automatic mode of operation called pumpdown The refrigeration system is in this mode whenever it is not running to cool or dehumidify the chamber In pumpdown mode the system 1 compressor will automatically turn on and off at preset pressures in order to force refrigerant into the high side of the system This serves as a means to protect the compressor on start up If pumpdown was not used refrigerant could migrate throughout the system and accumulate typically i
111. ndows under the set time tab Set Time Time Options DST Settings 13 57 19 DOW Sun Sat 0 through 6 Figure 8 4 Set Time To make adjustments touch the desired field entry box The pop up keypad will appear allowing a new value to be entered Once all corrections are made press the Set Time button An alert window will appear stating that setting the date time will reset all trends back to zero Press Yes to continue or No to not accept the new time changes The time is entered in a 24 hour time format To convert time from a 12 hour format AM PM into 24 hour format add 12 to the hours for PM time For example 1pm will be a value of 13 1 12 for hours A time of 5 30pm will be 17 hours 30 minutes 8 3 1 Time Options Select the Time Options tab to configure the atomic clock settings If the EZT 560i is connected to the internet these settings can be used to have the EZT 560i automatically synchronize its time with one of the many nationally provided time servers Set Time Time Options pst Settings Time Zone Eastern Standard Time sl NTS Server tick usno navy mil sl Enable NTS Clock Current Time 12 3 2007 2 08 31 PM Save Figure 8 5 Time Options To enable the atomic clock select your time zone and which time server you wish to use from the drop down menu selections Place a check in the check box by touching it and press the Save button The EZT 560 will sync
112. nerating heat process control is typically unstable and produces undesirable results with fluctuations and oscillation in temperature control It is recommended to use deviation control mode for these applications 5 6 1 4 Considerations When Applying Product Control Product control is a powerful tool and when used properly can decrease test cycle times and provide more accurate and thorough product testing to insure the quality of your product However it is important to consider all of the factors that may affect the test results Product Sensor Placement Whether the product is a live load or a dead load sensor location will play an important part in the test results If the test method is correct but you are not getting the desired results try changing the location of the sensor on the product or change the orientation of the product within the chamber This may provide the results you were expecting Humidity Control Relative humidity is a measurement of the amount of moisture in air at a given temperature as a percentage of the total water it could hold at that temperature If your test requires both humidity and temperature control product control may have a detrimental affect on the chamber s ability to control humidity Since the air temperature varies in order to maintain product temperature humidity control will be affected by the difference in air temperature required to get the product to temperature The magnitude of this a
113. ng affect on rate of rise Dewpoint Read only parameter which displays current dewpoint of the air within the chamber DP Limit Read only parameter which displays the maximum dewpoint that can be maintained without causing condensation on product Monitor Mode Defines the method of part temperature monitoring Single Input Uses single input i e single sensor located on part Low Input Uses input with the lowest part temperature Hi Input Uses input with highest part temperature Avg Uses average of all selected part temperature inputs Input Selection Used to select which inputs will be used for monitoring part temperature Note that the standard system has only one selection the product control loop input If the EZT 560i is equipped with the input monitor option the additional inputs will be listed for selection 52 EZT 560i User Manual Cincinnati Sub Zero 5 8 Defrost Settings These settings will be available on chambers equipped with the hot gas defrost option This option is typically provided on systems that must operate at ultra low temperatures for extended periods of time or where frequent entry into the chamber is required It is used to periodically warm the refrigeration coils and remove the normal accumulation of ice that occurs when running at low temperatures Moisture in the air is naturally attracted to the cold surface of the refrigeration coils in the chamber This moisture freezes to the surface of
114. nging display units profile setpoints will not be converted between units Separate profiles are required for each temperature range The chamber and or product under test may be damaged as a result of operating profiles that have been written using alternate units 74 EZT 560i User Manual Cincinnati Sub Zero 8 2 Service Monitors The service monitors provide service interval alerts and life total service numbers for chamber components and systems The service intervals are set by CSZ at the optimum period for system performance and reliability When a component exceeds its service interval a notification alarm can be generated This alert will notify the operator that service should be performed at the next available down period Description Interval Actual AIR CIRCULATORS SYS 1 COMPRESSOR SYS2 COMPRESSOR HEATERS HUMIDITY SYSTEM NOT USED NOT USED NOT USED Press Tagname to clear counter Figure 8 2 Service Monitors When a service interval is exceeded an alert can be set to illuminate the corresponding indicator on the System Status Monitor screen An audible alert can also be turned on to get the operator s attention In order to clear the service alert the elapsed service counter must be cleared To clear the service interval count you must select the count that has been exceeded by touching its description on the Service Monitor screen A pop up window will ask if the count is to be cleared for
115. nsfer cold event boxes each time the update button is pressed the selected position for the transfer mechanism will alternate back and forth between the hot and cold chambers Profile Transfer Selection When running a profile only one transfer position must be selected in a step In most cases since the object of the test is to cycle between two chambers and fixed temperature conditions a two or three step profile is all that is required Each step will have the same setpoints but the transfer cart position will alternate between the two steps 3 2 2 3 Defrost Operation If the chamber is equipped with optional defrost the INITIATE DEFROST event will allow for programmed or manually initiated defrost of the chamber s cooling coil s See Section 5 8 Defrost Settings for more information on using the defrost option 3 2 2 4 Remote Setpoint Operation If the chamber is equipped with the analog input remote setpoint option there will be an event listed for each available input When the event is enabled REMOTE SETPOINT 1 REMOTE SETPOINT 2 etc it will enable that input The input will then drive the setpoint for the loop it is set to control See Section 8 6 3 Analog Inputs for more information on configuring and using the remote setpoint inputs 3 2 3 Product Control Option Most chambers are equipped with a product control loop The PRODUCT CONTROL event can be used to enable disable product control programm
116. nside a chamber with adequate airflow over them should follow the air temperature relatively close However large and or dense product may lag behind air temperature This may require the test cycle to be extended in order to allow longer soak periods to provide enough time for the product to reach air temperature Again due to the need for a temperature difference to force the heat to move between the product and air the product may never reach air temperature If the test requirements specify that the product must be at the designated temperature using product control is the only effective way to do this in the shortest cycle time possible Since speed for product to market is always desired the need for faster test cycles is a necessity Thus if your testing needs are leaning towards the use of product control it is important to implement it correctly for your product Since the response that every product will have to a test profile is an unknown the exact settings for every situation can not be predetermined However the following sections provide guidance on where to start They provide assistance for the two known types of product loads that can be placed within a chamber a dead load or a live load 5 6 1 2 Implementing Product Control on Dead Loads A dead load is a term describing a product that does not generate heat Any product can be a dead load even if it is an electrical product as long as it is not powered d
117. ntering the address of the email server used for sending emails This must be a valid mail server for which the above settings allow the EZT 560i access Contact your system administrator for assistance Email Subject This field is used to enter a subject line for emails and or SMS text messages It can be used to provide an identifier to the recipients of the alarm message to know which chamber it is coming from Q It is recommended to put some form of entry in this field It can be left blank however many firewalls and spam filters will filter out messages without subject lines That may prevent recipients from receiving the email It can also be useful for identifying a particular chamber on the factory floor Once all settings have been made be sure to press the Save button to store the values so that on the next power up they settings will be retained The body of the email SMS text message will contain the description of the alarm condition on the EZT 560i as would appear on the alarm monitor screen of the EZT 560i If the mail server is down or the EZT 560 is not connected to the network the message will not be sent and a local alarm on the EZT 560 will indicate a transmission failure Qe The EZT 560i must have a valid connection to your network for the email server to operate The EZT 560i receives its IP address from DHCP on your network and this only occurs during boot Therefore make sure the EZT 560i is properly connected
118. ntrol of the output The digital input must be configured for event output control for the output to be controlled by the assigned digital input If the input is not configured for event output control the output will remain off 8 6 6 1 DUT Safety Relay Output Wiring The DUT safety relay connection is provided as standard on most chambers To connect to this relay locate the digital output connector on your chamber The DUT connection is located on the digital output connector panel see Figure 8 21 The DUT safety relay is an isolated dry contact rated for up to 6A of current resistive at 24V AC DC It provides an effective and safe method of removing power from test items within the chamber any time the chamber is not running Leaving devices powered within a chamber that is not operating can cause catastrophic damage to the test item and or chamber in very short periods of time depending upon the heat output of the device 8 6 6 2 Digital Output Wiring Locate the digital output connector on your chamber Figure 8 21 is a representation of the typical digital output connection provided on most chambers however as changes and or improvements are made your specific connection style may vary If using the digital outputs for low level signals to solid state circuitry it is recommended that all wiring be of the shielded type Only connect the drain wire of the shielded wiring at your device or the chamber not both Connecting the sh
119. nual 7 3 2 2 History Plot Channel Setup Select Hist View Channel Setup from the Datalogging menu The history plot channel setup allows the user to plot up to 8 channels of data simultaneously Any point from the data file can be selected along with the color for the channel to be plotted Select Plot Calc Point me fe Teraa fe TEMPERATURE PY Maroon TEMPERATURE SP Red HUMIDITY PY Blue HUMIDITY SP Lime Figure 7 6 History Plot Channel Setup Use the drop down boxes to select a channel for the plot and then the color for the channel Press the Add Point button to add the point to the current list of historical plot channels The Clear All button will clear the list of all points so a new group can be added for plotting The Add All button will automatically fill the list with up to the first 8 channels if available and assign individual colors to each channel 7 3 3 View Averages Report The View Averages Report provides a text report that displays the average value over time for each channel selected in the History Plot Channel Setup screen Averages are calculated for the period of time selected in the History Plot Time Setup screen The report supplies the average value for each channel over time as well as the combined average for all channels selected This is a useful tool when used with the monitor option because it can be used for analyzing temperature uniformity within the chamber or
120. oatton nnne 9 Figure 1 6 Logging Menu Navigation c ccccceeesceeeeeeeceeeeeeeaeeeeaeeceeeeecaeeesaaesseaeeseneeesaeeeeaeeeeeeeeaees 10 Figure 1 7 System Maintenance Menu Navigation 10 Figure 1 8 Print Driver Notification cccccccccceeeeeseeeeeeeeceeeeeeeaeeeeaeeseeeeeceaeeesaaeseeaeeseeeesiaeeesaeeseeeessaees 11 Figure 2 1 Single Loop VieW cceccceeeceeeeeeeeaeeeeeeeeeeeeeeeaeeeeaaessaeeeseaeeeeaaeseeaaeeaeesseeesaeeseaaeseeneeeeaees 12 Figure 2 2 Dual Loop View 13 Figure 2 3 All LOOPS View 13 Figure 2 4 Loop Re DEE 14 Figure 2 5 Trend Setup EE 15 Figure 2 6 Alarm Motor cicteeitecaiiccsscteece scents REENEN ENEE 16 Figure 2 7 Alarm Htetomg lt sicteesecieii ccd tee ee niina ES dee nanie eet eee tees 17 Figure 2 8 System Status Monitor 18 Figure 3 1 Single Setpoint Adiustment AAA 19 Figure 3 2 Numeric ER tegen egeetteeeickgeeg geek eebe eed suns wedsh veisveevab ra next yeneeeeaid aeaa EAE EE 19 Figure 3 3 Manual Event Control 20 Figure 3 4 Tune Control Response ssssssessnesenessneosnsstnssensstnsstnnstnnstenstnnstenstenstnnntnnntnnannnnennnennnonnnenn 25 Figure 4 4 Profile ut EE 27 Figure 4 2 Profile Step Ev nts viz ccecds derrin siiani ada aaaea dein neddeebheeyeiaseesheeetedes 28 Figure 4 3 Profile Guaranteed Soak Events 28 Figure 4 4 Profile Wait For INPUT sssssicccccicces cases cecceenccetetsseedautaneect vasseeveseapeeetivaace eves ned aaia aaaeaii 29 Figure 4 5 Profile Set
121. obtain a valid IP address and be properly connected to the network 72 EZT 560 User Manual Cincinnati Sub Zero 8 System Maintenance System maintenance options are available from the Chamber Setup menu To access system maintenance select System Maintenance from the chamber setup menu Power Recovery Setpoint Limits Event Tagnames Process Alarm Tagnames Alarm Settings Product Control Condenstation Control Defrost Settings PC CommsMeb Server System Maintenance Upon selecting system maintenance an alert will tell the user that the chamber will be taken off line The user can select No to return to the chamber setup menu without shutting down any current operations If the user selects Yes all operating systems of the chamber will stop Q Prior to entering system maintenance all automatic chamber operations must be stopped This includes data logging and profile operation 73 EZT 560i User Manual Cincinnati Sub Zero 8 1 Degrees C F Selection The EZT 560i can display temperatures in either degrees C or F To change the units select Degrees C F from the Setup menu Select units of measure for temperature readings ea Figure 8 1 Degrees C F Selection Press the button to select the desired units A message box will appear to acknowledge the units change Press OK to close and make the switch The button for the selected unit will be illuminated green once selected When cha
122. of time The vertical axis determines the range of displayed data while the horizontal axis determines the history period The maximum time period that can be shown in the trend is 6 hours The trend plots a new point on a one minute fixed time interval HUMIDITY i gt Setup E AS eS ee ee ee eee 1 00 PM 2 00 AM 3 00 PM 4 00 AM 5 00 PM Figure 2 4 Loop Trend The trends on the EZT 560i have a drag n zoom feature By using your finger to select an area on the screen the trend will zoom in on that area To select a portion of the trend touch and hold the screen with your finger Drag your finger across the trend and a box will be drawn around the selected area Removing your finger from the screen will cause the trend to redraw the trend with only the selected area To return to the normal view touch the x or y axis and select zoom out to return to the previous zoom setting or zoom normal to return to the full trend display H When a trend is zoomed in the trend will not update with new information The trend must be in normal view mode in order to update at each time interval The trend will return to normal view automatically when selecting a different screen to view If the EZT 560i s clock updates for daylight savings time or is corrected to the proper time by the NTS clock server settings in the EZT the offset in time may cause the trend to display data inaccurately due to this time offset The trend will autom
123. ommon Terms and Definitions autotune A feature that automatically sets process control PID values to match a particular process in a system baud rate The rate of information transfer in serial communications measured in bits per second accuracy Closeness between the value indicated by a measuring instrument and a physical constant or known standard offset An adjustment to eliminate the difference between the indicated value and the actual process value cascade Control algorithm in which the output of one control loop provides the setpoint for another loop The second loop in turn determines the control action derivative control D The last term in the PID control algorithm Action that anticipates the rate of change of the process and compensates to minimize overshoot and undershoot Derivative control is an instantaneous change of the control output in the same direction as the proportional error This is caused by a change in the process variable PV that decreases over the time of the derivative TD The TD is in units of seconds DHCP Dynamic Host Configuration protocol Permits auto assignment of temporary IP addresses for new devices logging in to the network DNS Domain Name Server Associates names with IP addresses over a network droop In proportional controllers the difference between setpoint and actual value after the system stabilizes EIA See Electronics Industries of
124. onnection issues arising from using any software other than that recommended by CSZ 110 EZT 560i User Manual 10 Diagnostics Cincinnati Sub Zero This section provides technical help for diagnosing problem conditions with your chamber The information provided here covers typical options and accessories If you are unable to diagnose a problem through the use of this guide contact Cincinnati Sub Zero s Service Department 10 1 Alarm Codes and Troubleshooting d Some of the procedures may require access to live circuitry Dangerous accidental contact with line voltage is possible Only qualified service personnel should be allowed to perform these procedures Potentially lethal voltages are present inside the unit Alarm Monitor Description Corrective Action Input ALARM User alarm is on for input listed Allow process value to return within set point limits change alarm set point values or disable alarm BOILER OVERTEMP Boiler exceeded maximum operating temperature Check water supply and water level Verify low water float operation Reset high temperature safety on boiler BOILER LOW WATER Boiler water level low Check water supply pressure Check low float operation Check operation of fill level float and water supply solenoid if applicable Check and replace filters if necessary CHAMBER HI LIMIT Chamber high limit safety tripped Limit must be manually reset or power cycled to
125. opens the audit trail viewer Press the Open Audit Trail button to open the explorer window Select the desired audit trail file and press the Open button The audit trail files are stored by date One file will be created for each day If no activity occurred during a given day no file will be available Open Audit Trail Time Ss User Figure 6 7 Audit Trail Viewer 6 4 Current User The Current User selection merely provides a means of identifying the current user logged into the system If none of the users configured in the system are logged on the current user will be displayed as CSZ System 62 EZT 560 User Manual Cincinnati Sub Zero 7 Logging The EZT 560i logging features are accessed via the Log menu item The system data logging provides the ability to select individual points for logging view datalog files and start stop logging operations The logging ability of the EZT 560 provides an easy to use convenient method to obtain electronic data without the need for additional equipment System Logger 63 Cincinnati Sub Zero EZT 560i User Manual 7 1 Start Stop Logging The main system data logging screen is used to start or stop the logger set the logging rate and also format file prefix is entered before the date time stamp if the user enters one If log during profile run is selected under the logging setup the entry in the log filename prefix will be ignored and the profi
126. or external connection to each of the outputs Digital Output Digital Output Function D wi E Customer Event a Profile Running BB Profile Hold E Profile Step Change a Input Alarm Figure 8 20 Digital Outputs To configure an output first select the output number by entering the value in the Digital Output field Upon entering the value the output s current configuration will be loaded and indicated by the LED s next to the selected function To make changes to the output s configuration place a check in the box next to the desired function for the output Once the change has been made press the Accept button to save the change If you do not press the Accept button the change will be lost if you leave the screen or enter a new digital output number Output Functions The output function defines what condition causes the output to turn on and off All digital outputs are configured as event outputs by default More than one output can be set for the same function Profile Running When selected the output will turn on when the profile is operating The operating condition is defined as a ramp soak guaranteed soak or wait for condition The output will not be on if the profile is in autostart and has not yet started or when placed in hold by an operator Profile Hold When selected the output will turn on when the profile is in hold When the profile is in any other condition the output will
127. p thus causing the profile to start and stop This will elongate the overall step time and change the rate of change of the setpoint Guaranteed soak should only be enabled on soak steps 40 EZT 560i User Manual Cincinnati Sub Zero 5 Chamber Setup This section covers the use of extended controller features that enhance the functionality of your chamber To gain access to the chamber setup options select Chamber Setup from the Setup menu Chamber Setup 5 1 Power Recovery The power recovery settings direct the EZT 5607 s response to the interruption of electrical power The EZT 560 s battery powered real time clock tracks the amount of time the power is out When power is restored the controller compares this amount of time to the Power Out Time setting and takes whatever action is selected in the Recovery State First determine how long the power can be interrupted without adversely affecting results Set the Power Out Time to this time If power is returned in less time than this setting the chamber will continue operation where it left off If power is returned after a time longer than the power out time setting the EZT 560 will take action based on the Recovery State selection Recovery State on Power Up Power Out W oo Time W TERMINATE MB Reser MB Resume Seconds wi CONTINUE p Set Figure 5 1 Power Recovery Hold Select hold to have the chamber return to operation at the same point it was
128. p period prior to use or damage to the compressor may result EZT 560i User Manual Cincinnati Sub Zero 2 4 Alarm History The alarm history screen provides easy access to historical alarm data To access an alarm file press the Open File button on the upper right corner of the display Select the desired alarm file from the list and press Open All alarms that occurred on that date will be displayed in the list box Alarm Description ate CHAMBER HI LIMIT 10 22 2005 PRODUCT SAFETY 10 22 2005 BOILER LOW WATER SAFETY 10 22 2005 MOTOR OVERLOAD 10 22 2005 Figure 2 7 Alarm History To clear the alarms from the list box press the Clear button Do this to refresh the display prior to opening another alarm file All alarm files are stored by day using the day s date for the file name Thus a new file will be created every day in order to store any alarms for that day If no alarms occurred on a given day an alarm file will not be created for that day EZT 560 User Manual Cincinnati Sub Zero 2 5 System Status Monitor The system status monitor provides non critical alarm information or alerts to indicate specific operational conditions or limits that have been reached in the chamber s operation Status Monitor For Non Critical Alarms a RH H20 RESERVOIR LO MB RH TMP DISABLE WB RH Hi DEWPOINT LIMIT MB RH Lo DEWPOINT LIMIT MB poor oren Figure 2 8 System Status Monitor Non critical alarms and aler
129. perating your environmental chamber at extreme air temperature below freezing 0 32F or above boiling 100 212F the chamber is not c apable of controlling humidity This is due to the physical properties of air and its ability to hold moisture at standard atmospheric pressures when at these temperatures 20 EZT 560i User Manual Cincinnati Sub Zero To prevent malfunction or damage to the chamber the EZT 560i control system automatically disables the humidity system components when outside of the valid operating temperature range The event will remain on however so once the air temperature in the chamber returns to the valid operating range humidity control will resume at the target humidity setpoint When humidity is disabled due to the chamber air temperature the corresponding System Status Monitor indicator RH TMP DISABLE will illuminate to indicate that this condition is present Minimum Humidity Limitations The standard humidity option provides a lower limit of humidity control relating to a 4 4 40F dewpoint The dewpoint refers to the temperature at which the air contains the maximum amount of moisture it can hold When a surface drops to that temperature or below condensation will occur on that surface The dewpoint varies logarithmically with temperature and relative humidity This means that at higher temperatures a much lower humidity level can be obtained because the air can hold more moisture the warmer it become
130. point ERUN sssri rasusau aaie aeaea andada ia aaa aada 30 Figure 4 6 Profile AUtOStart ccccceceeceeeeeeeeeeceaeeeeaae scenes ceaeeeeaaeeseaeeseeeeeseaeeesaaeseeaeeseeeeesaeessaeeseneeeeaees 32 Figure 4 7 Profile Guaranteed Soak Limits ecceeeeeeceeeeeeeeeeeeeeseeeeecaeeeeeaeseeaeeseeeeesaeessaeeeeeeeseaees 33 Figure 4 8 Profile Plot 34 Figure 4 9 Profile Grat 35 Figure 4 10 Adjust Step Time 36 Figure 4 11 Profile Status View 37 Figure 5 1 Power Hecovenm sssesssseesiissinssirssirsstnsstnsstnsstnsstesstenstenstenstnnsttnstnnsttnntnnttnnattnntnnenn nenn nenn 41 Figure 5 2 Setpoint Limitte Ask 42 Figure 5 3 Event Tagonames 43 Figure 5 4 Process Alarm Taonames neen nnnn 44 Figure 5 5 Alani Ee 45 Figure 5 6 Product Controls EE 47 Figure 5 7 Condensation Control 52 Bel NEE te Ee ue EE 53 Figure 5 9 Web GernverModbusiVNt unnn nn nnna 54 Figure 5 10 Create Email Address 55 Figure 5 10 Email Adresses AAA 56 RiUICL NR UE le EE 56 A 4 EZT 560i User Manual Cincinnati Sub Zero List of Figures cont d Figure 6 1 Figure 6 2 Figure 6 3 Figure 6 4 Figure 6 5 Figure 6 6 Figure 6 7 Figure 7 1 Figure 7 2 Figure 7 3 Figure 7 4 Figure 7 5 Figure 7 6 Figure 7 7 Figure 7 8 Figure 7 9 Figure 8 1 Figure 8 2 Figure 8 3 Figure 8 4 Figure 8 5 Figure 8 6 Figure 8 7 Figure 8 8 Figure 8 9 Figure 8 10 Figure 8 11 Figure 8 12 Figure 8 13 Figure 8 14 Figure 8 15 Figure 8 16 Figure 8 17 Figure
131. port buffer Once the EZT sees data being sent over the serial communication link the timeout begins If the data the EZT receives is not valid or addressed to it the buffer will be cleared after the timeout setting If the data was valid and was addressed to the EZT it will take the data upon receiving it and perform the command The timeout period should not be adjusted unless communication errors are repeatedly occurring between the EZT and the host computer For connections to a single EZT 560i the default timeout setting should be sufficient When multiple EZT s are on the same RS485 link the timeout setting may have to be adjusted to optimize communications Depending on other activity that the EZT 560i may be performing at the time data logging FTP VNC connections etc the timeout may have to be increased due to the additional work that the EZT has to perform The additional processes may require more time for the EZT to respond to the message so a longer timeout period is needed di When multiple EZT s are on the same serial connection each EZT will receive the response of every other EZT on the link when they respond to a command from the host computer Since the response of an EZT is not a valid command the data will not clear from the EZT s buffer until the timeout expires If a command is then sent to an EZT prior to the timeout period it will not respond to the command because it would be appended to the previous data
132. prior to the power outage Ifa profile was running the profile will still be active however it will remain in hold until manually set to continue Terminate Select terminate to have the chamber default to the off state on power up If a profile was active prior to the power outage the profile will also be stopped Reset Select reset to automatically restart the profile that was running at power failure Use this option if it is critical for a profile to run from start to finish without interruption Resume Select resume to have the chamber pick up where it would be at the current time if power had not been lost If a profile was running prior to the power outage the EZT 560 will advance forward through the profile to the point where it would be at the current time and resume operation from that point Continue Select continue to have the chamber pick up where it left off on loss of power Ifa profile was running prior to the power outage it will resume where it left off and continue through the rest of the profile 41 EZT 560i User Manual Cincinnati Sub Zero 5 2 Setpoint Limits The setpoint limits screen allows for the adjustment of the minimum and maximum operating setpoints allowed to be entered for the control loops These limits can be used to prevent operators from entering a value that exceeds the survivability limits of a product being tested reducing the risk of product damage DN Lower SP Limit Upper SP
133. profile It can be accessed from the main Profiles menu as well as the profile Views menu Description Value PROFILE STATUS OFF START DATE 10 22 05 10 15 ESTIMATE STOP DATE 10 22 05 15 44 CURRENT STEP 3 STEP TIME LEFT 2 22 00 WAIT FOR INPUT NONE WAIT SETPOINT NONE 1 Profile Status 2 Start Date 3 Estimated Stop Date 4 Current Step 5 Step Time Left 6 Wait for Input 7 Wait Setpoint 8 Target Setpoints 9 Current Jump Step 10 Current Jumps Remaining 11 Last Jump from Step 12 Last Jump to Step 13 Total Jumps Made Figure 4 11 Profile Status View Displays the current operating mode of the profile i e autostart run hold wait for ramp soak guaranteed soak etc Displays the date and time at which the profile was started Displays the calculated stop date and time of the profile Note that this may vary due to wait for and guaranteed soak steps set in the profile Indicates the step number currently being executed Displays the time remaining in the current step Indicates the input being monitored if a wait for condition is present Indicates the setpoint or digital input number for the wait for condition if active Displays setpoints for each controlled process of the chamber i e temperature humidity altitiude etc Dynamic field that is active only if step is a jump step Displays the step number that profile will jump to at completion of the step
134. provides the administrator the ability to view information on each user entered into the system Password information is not available The user can be deleted from this tab and the password for each user can also be changed from this area 59 Cincinnati Sub Zero EZT 560i User Manual Add User Users User Rights Security Options MLAMBERT MARKLAMBER GROSSMORE GILROSSMORE ADMINISTA Figure 6 2 Security Users List 6 1 2 1 Delete User The administrator can delete a user by selecting the user from the list To select a user touch the UserlD in the list box and press the Delete User button 6 1 2 2 Change User Password The administrator can also change the password of a user in the system This may have to be done if password aging is set up for the user or for other security reasons To change a password select the user by touching the UserID in the list box and press the Change Pswrd button Enter the new password and confirm the password Press the Accept button to change the password New Password Enter New Password Lo Confirm New Password Figure 6 3 Change User Password 6 1 3 User Rights The User Rights tab provides the administrator the ability to assign rights to each user level Operator Supervisor and Administrator Select the user type from the drop down box and then enable or disable specific program functions rights by selecting the checkbox next to the function I
135. r TDMA 0123456789 mmode com Nextel now part of Sprint Nextel 140 characters 0123456789 messaging nextel com Sprint 0123456789 sprintpaging com Sprint PCS now Sprint Nextel 160 characters 0123456789 messaging sprintocs com T Mobile 140 characters 0123456789 tmomail net Verizon 160 characters 0123456789 vtext com Verizon PCS 0123456789 myvzw com 55 Cincinnati Sub Zero EZT 560i User Manual 5 10 2 Email Addresses Selecting the Email Addresses tab allows the user to view the list of addresses entered into the EZT 560i By using the scroll bar at the bottom of the list box you can view the name addresses and notification selections for each user To delete a user touch the name of the user in the list box and press the Delete button This will permanently remove the user from the list Address Entry Email Addresses Email Settings Email Address Brad Johnson johnson mycompa Delete Address Figure 5 10 Email Addresses 5 10 3 Email Settings The Email Settings tab provides access to the email server configuration which is how the EZT 560i is able to connect and send email messages over its network connection These settings may require authorization and or assistance from your system adiministrator Contact your system administrator for proper settings and network authorization from your network server if required to allow the EZT 560i to send email SMS text messages Address Entry
136. r removing heat from your product and that in order to do this there must be a difference in temperature between them The larger this difference the more heat that flows In addition the more air moving across your product the more heat that can be added or removed at any given temperature difference Product placement in a chamber can affect the rate at which product changes temperature It is important to not overload a chamber since blocking or restricting airflow will reduce performance and can prevent some of the product from seeing the proper test conditions Product should be located in such a way that it gets good air distribution around it While this may not be always possible due to certain circumstances such as product shape it is a factor to consider whenever possible 48 EZT 560i User Manual Cincinnati Sub Zero Product Placement Typically the most detrimental affects are caused when shelves are used in a chamber and not enough free space around the product is provided for proper air flow It is more beneficial to use multiple shelves with staggered product placement than to overload a shelf Regardless of the number of shelves staggering product is a must WRONG CORRECT Once product is correctly positioned in the chamber the need for product control depends on how the product responds to the test profile and if the test requirements demand that the product be at a specific temperature Small product placed i
137. range of the air temperature setpoint is calculated by adding and or subtracting these values as offsets from the product setpoint As the product setpoint changes the window defined by the upper and lower points automatically changes with it Process This mode uses the lower and upper setpoints as the upper and lower range of the air temperature setpoint The output of the product control loop is linearized between these two values in order to provide the setpoint for the air temperature loop 47 Cincinnati Sub Zero EZT 560i User Manual The deviation mode has the benefit of limiting the maximum and minimum temperature that the air can achieve relative to the desired product setpoint This allows the system to be fine tuned to the minimum amount of overshoot required to obtain the desired product temperature The process mode has the benefit of maximum change rates by allowing the air temperature to go to absolute limits This allows the product to achieve setpoint temperature as quickly as possible but does so at the cost of stability If the part has a large thermal lag the air temperature control may oscillate uncontrollably once the product reaches setpoint because of the large overshoot In most cases deviation control is the recommended selection The product control feature can be turned on and off in one of two ways It can be either enabled or disabled by pressing the desired mode control button disable deviation or process or
138. rface The VNC address sets the address of the EZT 560 for the VNC server Valid addresses are from 0 to 255 The VNC password selection defines the connection mode for the VNC server The selections are none and pwd which requires users to enter the password when logging in to the EZT 560 over the VNC interface This field is used to enter a name that can better identify the chamber for users logged into the VNC interface The name entered here will be used on the VNC header window on a PC so that if multiple VNC clients are open to different chambers each one can be identified This field is used to enter the password that a user must enter for the VNC interface connect to the EZT 560i if the VNC password is enabled Pushbutton that enables or disabled the web server interface Pushbutton that enables or disabled the VNC server interface This is a read only field that provides the IP address of the EZT 560i which is required for connecting over the VNC and web server interfaces Q Any changes made to the above settings must be saved in order for them to take affect When changes are completed press the Save button and then cycle power to the EZT 560i The new settings will only take affect when the EZT 560i boots up 54 EZT 560 User Manual Cincinnati Sub Zero 5 10 Email The EZT 560 email server has the ability to send alarm messages to email and SMS addresses Up to 30 addresses can be programmed into the syst
139. rt by Day When this mode is selected only the day of week and time is required to be entered The date settings are ignored so the values are irrelevant Q The time is entered in a 24 hour time format To convert time from a 12 hour format AM PM into 24 hour format add 12 to the hours for PM time For example 2pm will be a value of 14 2 12 for hours A time of 5 30pm will be 17 hours 30 minutes The autostart settings are stored with the profile however autostart can be used as a one time setting Select a profile that you wish to autostart at a particular time make the desired autostart selections and run the profile The original profile settings will not be affected unless you save the profile 32 EZT 560i User Manual Cincinnati Sub Zero 4 3 Guaranteed Soak Limits To access the guaranteed soak limits select Soak Limits from the profile Views menu The soak limits screen is used to set the control tolerance for guaranteed soak steps when in profile operation When the process variables deviate from their setpoints by more than the soak limits the profile time will stop until the process variables re enter the soak bands These limits apply to each step in the profile and only need to be set once TEMPERATURE SP HUMIDITY SP ALTITUDE SP PRODUCT SP Figure 4 7 Profile Guaranteed Soak Limits To change the limits touch the limit entry field Enter the new soak band via the keypad Note that setting a band lim
140. rvice alert if enabled indicating that the basket transfer mechanism components require regular maintenance Perform service and clear elapsed service count for corresponding components Q An audible alarm can be associated with the service alerts See Section 10 2 Service Monitors for detailed information on the service alerts 114 EZT 560 User Manual 10 2 Service Monitors Cincinnati Sub Zero Perform lock out tag out procedures and remove main power from the chamber prior to performing any service procedures Service should only be performed by qualified service personnel Elapsed Service Counter Description Service Action AIR CIRCULATOR HRS Inspect locking collars on fans Tighten if necessary Inspect fan blades for damage and or loose blades Replace fan blade if necessary DO NOT attempt repair Inspect motor bearings for excessive wear slop Lubricate if applicable Inspect heaters for corrosion and replace if insulators are cracked or damaged RC BLOWER HRS Inspect locking collars on blower wheel Tighten if necessary Inspect blower wheel for damage and or loose blades Replace wheel if necessary DO NOT attempt repair Inspect motor bearings for excessive wear slop Lubricate if applicable ALTITUDE SYS HRS Change vacuum pump oil filter Check oil level in vacuum pump Check for leaks Add oil if needed If applicable inspect drive belts and replace if worn Re tension
141. ry File from the data logging Edit menu Once the file has been opened the user has the ability to adjust the time period to plot from the file and select what points from the file are to be plotted Start Stop Logging Select Points For Lagging Hist View Time Setup Hist View Channel Setup View History Plot View Averages Report To plot the file select View History Plot from the Datalogging menu The EZT 560 will open up a trend graph and plot the selected channels When you are done viewing the file press the Done button to return to the main datalogging menu Cursor Name Toggle Button Start 8411 2005 End 8 25 2005 bi Done 100 0 60 0 60 0 40 0 20 0 0 0 bot ELELTLELETEELKELLEI 081 11 59 PM 08418 11 59PM 08 25 11 59 PM Figure 7 3 History Plot 66 EZT 560 User Manual Cincinnati Sub Zero The plotted channels will be shown across the top of the graph in their associated colors The history plot provides the drag n zoom feature like the loop trends To zoom in to a particular section touch the screen and drag your finger across the screen to make a window around the particular area of interest Once you remove your finger from the screen the plot will zoom in to that particular section To return to the full plot touch either the x or y axis and select Zoom Normal The Cursor button enables a cursor that can be scrolled across the plot in order to display the value of each
142. s For example an air temperature of 85T 185 and relative humidity of 12 is the equivalent dewpoint of air at a temperature of BC 41 and 79 Both of these values are at the minimum achievable dewpoint of the chamber and thus the minimum achievable humidity at the related temperature If you were to set the humidity setpoint at 0 for example the humidity level would never reach 0 since the chamber is not capable of removing any more moisture from the air The EZT 560i is programmed to determine what the minimum achievable humidity point is at any given temperature and will control to that limit Therefore the system will not overwork itself trying to reach an unattainable point This prolongs system life reduces wear and tear and prevents damage to humidity system components Thus if you set a setpoint of 0 you can be confident that the environment within the chamber will remain as dry as possible at any given temperature within the operating range When humidity is limited due to the fact that the minimum dewpoint has been achieved the corresponding System Status Monitor indicator RH LO DEWPOINT LIMIT will illuminate to indicate that this condition is present If your chamber is not obtaining the desired humidity level check the status monitor to verify that you are not trying to operate the chamber at a point outside of the chamber s minimum dewpoint capability Maximum Humidity Limitations Certain chambers have limitations on
143. s optional analog and digital inputs and outputs The available selections under this menu are dependant upon the options present on the chamber 8 6 1 Control Inputs The analog inputs associated with the control loops i e temperature humidity product etc are not accessible through this menu item They must be accessed directly from the PID loop controllers See Chapter 4 Calibration of the Future Design FDC 9300 Self Tune Fuzzy PID Process Temperature Controller User s Manual provided with your chamber for procedures and instructions on calibrating the control inputs Do not alter any other parameters or settings within the 9300 controllers Any changes made to CSZ factory settings may cause unpredictable operation of the chamber which can result in damage to equipment and will void the chamber warranty 8 6 2 Monitor Inputs This menu item will appear if your chamber is equipped with the monitor inputs package The monitor option provides up to eight separate type T thermocouple inputs for monitoring temperatures throughout the chamber The calibration range is fixed within the EZT 560i Eagle hardware however the user can input an offset in order to adjust for sensor tolerances and lead affects Through the use of a simple ice bath all sensors can be corrected within a matter of minutes without having to disconnect leads or have expensive calibration equipment With the chamber at ambient temperature place a bucke
144. s required Temperature SP Temperature below which defrost is enabled when in auto mode and after the defrost delay defrost will be activated If at any time the chamber temperature rises above the setpoint temperature the delay timer will be reset and the countdown will begin anew the next time the chamber temperature drops below the setpoint This prevents defrost from starting at temperature above which ice does not form on the cooling coils 53 Cincinnati Sub Zero EZT 560i User Manual 5 9 Web Server Modbus VNC This screen is used to set up and configure the EZT 560i s communication interfaces This includes settings for the serial interface VNC and web server It also provides the EZT 560i s IP address which is required for using the VNC or web server interfaces For more information regarding the use of the EZT 560i data communications interfaces see Section 9 Communications Modbus Add Pairty Modbus Timeout VNC Add Pwd VNC Device Name VNC Password Web Server On Off VNC Server On Off Device IP Address Modbus Timeout 200 ms CS CE RE DEVICE IP ADDRESS 10 1 10 81 Figure 5 9 Web Server Modbus VNC The Modbus address sets the address of the EZT 560i on the serial communications interface Valid addresses are 1 to 31 The parity setting configures the parity mode for the serial interface Valid settings are even odd and none This is used to adjust the timeout of the serial inte
145. ses one or two setpoints that are defined relative to the control setpoint High and low alarm setpoints are calculated by adding and or subtracting offset values from the control setpoint If the setpoint changes the window defined by the alarm setpoints automatically changes with it A deviation alarm can be set for high only low only or both high and low E The deviation alarm type is not available for the optional monitor inputs The monitor inputs are not associated with a control setpoint Alarm Modes Self Clear Latching Close Open on Alarm Annunciate On Off A latched alarm will remain active after the alarm condition has passed It can only be deactivated by the user An alarm that is not latched self clearing will deactivate automatically when the alarm condition has passed An open on alarm condition means that the event output assigned to the alarm will be energized in a non alarm condition i e fail safe A close on alarm settings means that the output is normally open and will close in an alarm condition This is used to control the method by which an alarm is reported When the annunciate alarm is on an alarm condition will trigger the audible horn on the chamber and the screen background will turn red to indicate the alarm condition The audible alert must then be manually silenced by pressing the silence button on the alarm monitor screen 45 Cincinnati Sub Zero Shutdown Continue Output Assignment
146. source for ultra low temperature operation on chambers designed to operate at temperatures below 84 120F When this option is installed on the chamber turn the Aux Cooling event on When the boost is required during a pull down the EZT 560i will turn on the boost cooling solenoids and inject LN2 or CO2 into the chamber to rapidly drop the temperature as required Once the desired setpoint is achieved the boost solenoids will close in order to conserve LN2 or CO2 since it is no longer required and allow the refrigeration system to maintain the chamber temperature If your chamber is designed for ultra low temperature operation and the setpoint is below the minimum achievable temperature for the refrigeration system the EZT 560i will disable the refrigeration system and use the boost cooling system for the primary cooling source This automatically protects the refrigeration system from damage and optimizes system operation If the auxiliary cooling event is turned off the only means of cooling will be from the refrigeration system If the setpoint is below the capabilities of the refrigeration system on an ultra low temperature chamber the chamber will not be able to reach setpoint until the event is turned on 3 2 1 3 Dry Air Purge Low RH Operation The dry air purge event can provide two levels of operation Level 1 The first level of this option is dry air purge only The purge only option consists of an air dryer which dries
147. t of ice filled with water in the chamber Place all monitor input thermocouples into the ice bath Allow the probes to soak for a minimum of 30 minutes BEFORE entering an offset To enter an offset select Monitor Inputs from the I O menu Enter the number of the input in the Input Num field The current reading from the input will be shown in the Cur PV field Input Num Cur PV Offset 1 4 Figure 8 13 Monitor Inputs The reading should be 0 32F i e the ice bath te mperature To zero the input enter the offset value in the Offset field and verify the reading Be sure to press the Accept button to save the new offset value before proceeding onto other inputs or exiting the monitor inputs screen or the offset value will be lost The total error for the monitor inputs is 3 5 6 3 The input types are fixed and cannot be changed If replacing sensors be sure to replace with the same type 83 Cincinnati Sub Zero EZT 560i User Manual 8 6 3 Analog Inputs The EZT 560 can have up to five analog inputs which are used for remote setpoint inputs This menu item will appear if your chamber is equipped with the remote setpoint option With this option electrical connections are provided on the chamber for external connection to each available input Analog Input 1 Input Min 40 0 Input Max 160 0 Input Type Loop Setpoint Selection i v voltage v TEMPERATURE W current W oorTy
148. t savings time daylight savings must be enabled or the clock will not be set correctly 78 EZT 560i User Manual Cincinnati Sub Zero 8 4 Touch Screen Calibration After extended use and many hours of operation it may be necessary to recalibrate the touch screen of the EZT 560 A typical sign that the screen may be out of adjustment is inaccurate responses when attempting to press buttons check boxes or adjust fields on the display The calibration utility is provided in order to readjust the screen when this happens Q Even after calibration some fields may require finesse to operate Check boxes require precise presses even when the screen is in full calibration Most response issues result from fat fingering the display Use the tip of your finger or a stylus if necessary to operate the unit To access the screen calibration utility select Calibrate Touch from the Setup menu Push the Calibrate Touch button Calibrate functions will suspend all operations for the E2T 560 Operation will not resume until Calibrate Touch window is closed Select functions from buttons listed above Figure 8 7 Touch Screen Calibration From the System Settings window touch the Calibrate button to start the calibration utility System settings Touch Screen settings Jon Settings MAC ad d Calibrate Test Figure 8 8 Touch Screen Settings 79 EZT 560 User Manual Cincinnati Sub Zero Crosshairs
149. ters the printer s USB cable must be plugged into the EZT 560i interface after the EZT 560i is powered up and in normal operating mode and the printer is powered up and ready for printing neither device should be in startup mode When the USB cable is connected to the USB port the following dialog may appear on the EZT 560i display each time the printer cable is plugged in Unidentified USB Device II Enter the name of the driver for this USB device Driver Name lt Figure 1 8 Print Driver Notification Press the X at the top right of the dialog box and the dialog will disappear The printer is now ready for printing text or graphics from the EZT 560i interface This dialog will not appear again unless the printer cable is disconnected and then re inserted into the EZT 560i USB interface connection The print driver in the EZT 560 interface provides standard USB printing using PCL 3 language support Since printer models change so often many manufacturers add features to new models of printers To take advantage of these new features Ethernet connectivity etc each manufacturer supplies driver disks for different Windows OS versions Since the EZT 560 is an embedded device no hard disk or moving parts installation of these drivers is not possible nor required The dialog box appears due to the additional functionality the USB printer is transmitting to the EZT 560i interface
150. the coil over time and can eventually cover the entire surface This will render the coil useless and block all airflow in the chamber In chambers that run through high and low temperature cycles the moisture does not accumulate to a detrimental level but in chambers that run at low temperatures for days or weeks at a time this can be a problem Hot gas defrost is a means of warming the refrigeration coils to melt the ice while minimizing the rise in temperature of product within the chamber When defrost is enabled the air circulators shut down and the hot gas solenoid opens The hot gas flows through the refrigeration coil and melts the ice Once the coil reaches a preset temperature limit typically 10 50 defrost terminates The refrigeration system then prechills the coil prior to turning on the air circulators This further prevents the warming of the chamber s contents Defrost can be set to run automatically or under manual control through the use of an event When auto mode is selected the EZT 560i will monitor the conditions of operation and automatically start defrost based on the parameters the user has entered Status Defrost Delay mins 720 Temperature SP Auto Mode on fo Figure 5 8 Defrost Settings Defrost Delay Time in minutes between defrosts when auto mode is enabled This is based on Individual operating conditions It may take some analysis to determine how long your chamber can run before defrost i
151. to your network and cycle power to the EZT 560i in order to obtain a valid IP address and be properly connected to the network 57 Cincinnati Sub Zero EZT 560i User Manual 6 Security The EZT 560 provides an enhanced array of security features The security model provides an administrator with the tools to add up to 30 users to the system Each user must have a unique ID full name and password Three levels of users are provided to include operator supervisor and administrator levels Specific access rights can be assigned to each user level as well as password aging for each user Re authentication is provided if enabled for any parameters that will change a control parameter which could upset the process i e setpoint tuning etc Re authentication requires that the logged in user must log in again before the process value will actually be changed This feature is provided for extra security The following example will make re authentication clearer A supervisor logs on the system The supervisor then steps away from the system to take a phone call but does not log out before leaving If another user tries to change the control setpoint on any loop the system will require another login by an authorized user for that level before the control setpoint is actually changed This provides an extra level of protection to make the system more tamper proof Q Default UserID is FACTORY Default Password is CONTROL 58
152. tputs may be provided for specific control functions depending upon the design of your chamber Do not alter these output settings unless you are sure that they are used for monitoring purposes only If you have any questions regarding the use of the output contact Cincinnati Sub Zero s customer service department for assistance The analog outputs can be configured to retransmit signals either in a 0 10V or 4 20mA range The minimum and maximum values of the output can be set to correspond to a specific value of the retransmitted source The output will retransmit this source linearly from the minimum to maximum range To configure an analog output select Analog Outputs from the I O menu Retransmit Output Out Min 80 0 Out Max Retrans Type j Retrans Output Source zij voltage I TemPeraTure SP Mi current LB TEMPERATURE PV MB TEMPERATURE OUT WA sp Figure 8 16 Analog Outputs To configure an output first select the output number by entering the value in the Retransmit Output field Upon entering the value the output s current configuration will be loaded and indicated by the LED s next to the selected type and source The minimum and maximum values will be shown in the Out Min and Out Max fields To make changes to the output s configuration place a check in the box next to the desired type and source for the output Enter the new minimum and maximum values for which the output is to retransmit
153. ts button This opens the guaranteed soak event entry window From this window select the events that are to be on during the step Once the selections are complete return to the profile entry screen by pressing the Back to Step Data button Select Loops for guaranteed soak Guaranteed Soak Events o TEMPERATURE O HUMIDITY O PRODUCT Back To Step Data Figure 4 3 Profile Guaranteed Soak Events Guaranteed soak should not be used on ramping steps The ramp rate will be affected if the process variable deviates from the soak band because the profile will be placed in hold When the profile is in hold the step length will be extended and the setpoints will no longer ramp at the desired rate Guaranteed soak should only be used on soak steps to make sure that the process stays at the desired setpoint within the soak band for the full time duration of the step 28 EZT 560 User Manual Cincinnati Sub Zero 4 1 3 Using Wait For The wait for function is a powerful tool for pausing a profile until a particular process variable reaches a predefined setpoint This differs from the guaranteed soak function by being a single shot monitor With the guaranteed soak the process variable is monitored throughout the whole step If the process exceeds the upper or lower deviation the profile will pause until the process returns to within those limits The wait for function puts the profile in hold and waits for the pro
154. ts that require operator attention will be indicated by an intermittent beeping of the chamber s audible alarm This alert can be silenced through the use of the Silence button See Section 10 Diagnostics for alarm codes and corrective actions EZT 560 User Manual Cincinnati Sub Zero 3 Manual Operation The EZT 560i controller can function as either a static setpoint controller or as a profile controller The EZT 560 is in static mode single setpoint operation when it is not running a profile This section describes how to operate the chamber in this mode 3 1 Setpoint Adjustment RR Si Figure 3 1 Single Setpoint Adjustment To adjust the setpoint 1 Select one of the loop views from the main View menu 2 Input the setpoint temperature Press the numeric display for the setpoint SP for temperature The setpoint adjust keypad will pop up on the screen Enter the desired setpoint value and press the Done button ENTER TEMPERATURE SETPOINT Clear Cancel d a a ee 3 6 9 Figure 3 2 Numeric Entry 3 Turn the Chamber event on to start the chamber see Section 3 2 Manual Event Control Cincinnati Sub Zero EZT 560i User Manual 3 2 Event Control Turning the Chamber On Off Events are the switches used to turn the chamber its related functions and optional systems on and off These events can be manually turned on and off as well as programmed into profiles so that they
155. und 65Kft Humidity Control Limitations On most altitude chambers with the humidity system option operation of the humidity system is inhibited when the altitude system is enabled The vacuum system used to control the internal chamber pressure can not operate with the addition of moisture Only altitude chambers with vacuum systems specifically designed to operate with the presence of moisture will allow humidity control with the altitude system enabled Unless the vacuum system was specifically designed to operate in conjunction with D humidity the chamber must be dried out before entering into altitude operation Any standing water in the chamber must be eliminated or possible damage and premature failure of the vacuum pump may occur 3 2 2 2 Thermal Shock Transfer Mechanism Operation For chambers designed to perform specific thermal shock testing a transfer cart basket is used to shuttle the product under test between different extreme environments The transfer mechanism typically transfers between two or three different zones The location for the shuttle to transfer to is set by two or three events which describe the desired location Vertical thermal shock VTS chambers typically operate with a hot and a cold chamber The events then relate to these locations as XFR HOT or XFR COLD Double duty thermal shock DTS chambers also shuttle product between hot and cold chambers however these chambers are equipped with a c
156. uring the test Dead loads lag behind the air temperature when increasing or decreasing temperature Since they lag in both directions the product control settings need to be adjusted in order to allow the air temperature to go above and below the desired product temperature in order to drive it to setpoint In determining the upper and lower setpoint limits for product control it is important to consider the maximum and minimum air temperatures that your product can be exposed to Since the air temperature will exceed the product temperature in order to get it to setpoint the air temperature could exceed the maximum or minimum air temperature that the product should be exposed to at any given time Therefore it should be considered when selecting the product control mode and setpoints Deviation Control Deviation control uses the lower and upper setpoints as minimum and maximum offsets from the product setpoint In other words these values are subtracted and added to the product setpoint to create an air temperature setpoint range For example if you enter a product loop setpoint of 50 degrees with a lower product control setpoint of 20 0 and an upper product control setpoint of 20 0 the air temperature control loop will be given a setpoint from the product loop in the range of 30 0 to 70 0 degrees as required to get the product to setpoint 49 Cincinnati Sub Zero EZT 560 User Manual Therefore as the product setpoint is changed the d
157. us data logging can be performed without filling up the available memory space Setting up an FTP site on your network may require authorization and or assistance from your system adiministrator Contact your system administrator for proper settings and network authorization from your network server if required to allow the EZT 560i to connect to the designated FTP site FTP IP Add User Name Password Server Dir Auto Backup 2 00AM agers pride Figure 7 9 FTP WAN Setup This field is used to enter the IP address of the FTP site for which the EZT 560i is to send the files to This field allows you to enter a user name for FTP site access When the EZT 560i connects to the FTP site to transfer data files the user name will be used to identify the connection If a security login is required the proper user name will have to be entered in this field The password field is used for entering a password if required by your FTP site for the EZT 560 to access the site Hd This password will remain visible on the FTP WAN setup screen Ifa password is required it is recommended to contact your system administrator and have them set up an account specifically for the EZT 560i for security purposes This field is used to enter the server directory This is the file folder designated within the FTP site for the storage of the data files When the automated back up occurs the EZT 560i will place the data files in this dire
158. ut If it is not configured as a wait for event input the profile will ignore the wait for selection and continue through the step See Section 8 6 5 Digital Inputs for information on setting the digital input mode 29 Cincinnati Sub Zero EZT 560i User Manual 4 1 4 Setting Setpoints and Step Time To enter the setpoint s and time for a step touch the setpoint time display table at the bottom of the profile entry screen This opens the setpoint and time entry window From this window enter in the time duration of the step in hours minutes and seconds as well as the required setpoint s for the step Once the entries have been made return to the profile entry screen by pressing the Done button Hours 2 Mins 5 Secs 0 TEMPERATURE SP 253 5 Done HUMIDITY SP 43 6 ALTITUDE SP 400 PRODUCT SP 155 Figure 4 5 Profile Setpoint Entry Entering a Soak Step The setpoint entry for a step defines the target setpoint i e the setpoint that will be achieved by the end of the step Thus if the setpoint of a step matches the setpoint of the previous step the chamber will soak i e remain at that setpoint for the entire step creating a soak step Entering a Ramp Step A ramp step is merely a step with a setpoint that is different from the previous step The chamber will ramp from the previous setpoint to the setpoint of the current step linearly over the time entered for the step This creates a ramp step Deter
159. ut goes from an off state to an on state That requires the application of 24Vdc power to the input Hi to Lo This setting sets the input up to perform the desired function when the input goes from an on state to an off state That requires the removal of 24Vdc power from the input 88 EZT 560 User Manual Cincinnati Sub Zero Input Functions The input function defines what event is to happen when the input meets the on state as defined by the transition mode Note that the profile functions are defined by this transitional state however the output control functions are held not transitional Start Profile When selected the input will start the currently loaded profile at step one Pause Profile When selected the input will put a running profile into the hold state Resume Profile When selected the input will put a profile that is in hold into run state Terminate Profile When selected the input will terminate the profile This will turn off all events and shut down the chamber If a profile is not running no action will occur and event status will not be affected Wait for Event When selected the input acts as a trigger input for the profile wait for function The input can then be selected in the profile to pause the current step until the input changes state according to the transition mode selection See Section 4 1 3 Using Profile Wait For d Advance Previous Step Advance Next Step Chamber
160. view plot and print data files and is available from CSZ Q Alarm and Audit files are also written in a csv format and can be opened directly with Excel after the memory stick is inserted into the PC after files are copied from internal compact flash to the memory stick No additional software is required to view alarm or audit files When files are deleted from the EZT 560i they are gone and can not be retrieved Once again do not edit move or delete any other files from the internal compact flash card unless using the EZT 560i File Utilities The EZT 560i will not operate properly if you do so To prevent possible data loss from the USB memory stick do not unplug the device from the EZT 560i or a PC when the indicator light is flashing The flashing indicates data transfer in progress and interrupting it by unplugging it can cause data loss Windows and Excel are trademarks of the Microsoft Corporation 70 EZT 560 User Manual Cincinnati Sub Zero 7 5 FTP WAN Setup The FTP Wan Setup screen allows the user to configure automatic back up of all data files contained in the EZT 560i s memory to a user designated FTP site When enabled the EZT 560 will automatically back up all history files at 2 00AM everyday and with an optional delete files selection the EZT 560 i will automatically delete the files from its internal memory after back up This will maintain the EZT 560i s memory so that continuo
161. will appear on the screen At each crosshair position touch the screen at the center of the crosshairs and hold position until the crosshairs move to the next calibration point Repeat this for each position in order to set the calibration The calibration requires five points the center and four corners Once complete the calibration utility will exit and return to the System settings window fully press and briefly hold stylus on the center of the tart Repeat as the target moves around the screen Press the Esc key to cancel E Figure 8 9 Calibration Screen Use the scroll arrow button in the Systems Settings window to scroll to the right until you see the Save tab Touch the Save tab and press the Save Registry button This will store the calibration parameters in memory If the settings are not saved the changes will be lost when power is cycled to the unit Press the OK button on the upper right corner of the System settings window to close the window and return to System Maintenance System settings ON LCD Settings MAC address Save System ve_4 re Scroll Tabs Save registry Figure 8 10 Save Registry 80 EZT 560 User Manual Cincinnati Sub Zero 8 4 1 LCD Settings The System Settings window also provides access to the backlight adjustment of the EZT 560 touch screen To access these settings perform the procedure above to access system settings however do not perform the calibr
162. y using the proper command string The EZT 560i s serial communications address should be set to 1 This is the default address that the 4899 converter will use when communicating over its serial interface to the EZT 560i The EZT 560i s serial communication mode must be set to RS485 The 4899 converter is factory wired to communicate with the EZT 560i over this serial connection See the EZT 560i User Communications Reference Manual for the list of data registers and their settings for controlling the EZT 560i over the GPIB interface 99 Cincinnati Sub Zero EZT 560i User Manual 9 2 1 GPIB Command Structure There are six basic commands that are required to configure and operate the GPIB controller in order to communicate with the EZT 560 controller These commands are listed in the table below All commands are generated using standard ASCII text characters Command Use SYST COMM GPIB ADDR addr GPIB Address Command Sets the GPIB controller s device address for subsequent commands Value for addris 1 to 31 This is the address you will use to communicate with the EZT 560 over the GPIB bus SAV 0 Save Configuration Command Saves current 4899 configuration in nonvolatile memory so that on next power up settings such as the GPIB address will remain in tact R reg num Read Register Command reads EZT 560 data values Reads one or multiple EZT 560i registers User specifies starting register reg and number of r
163. you need to achieve process control may be the better choice This allows you to set the upper and lower setpoint limits that the air temperature is allowed to reach regardless of the product temperature setpoint For example if a product test requires it to run between 70 and 20 but the air temperature is not to exceed 75 or 25 you can set the upper and lower product control setpoints to 75 and 25 The air temperature loop will then be sent a setpoint between 75 and 25 regardless of what the product setpoint is This will maximize the rate of change of the product temperature by allowing the air temperature setpoints to reach maximum limits However once the product reaches setpoint the larger air temperature control range may cause undesired oscillation once setpoint is achieved 5 6 1 3 Implementing Product Control on Live Loads A live load is a term describing a product that generates heat This is typically some type of electrical product that is being tested while under power Live loads tend to lead the air temperature when increasing in temperature and can severely lag behind the air temperature when decreasing in temperature since they are self heating Since they usually lag in only one direction the product control settings usually need to be adjusted to go considerably below the desired product temperature in order to drive it to setpoint The upper setpoint is typically a smaller value When using product control on

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