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0461391_B Safe-NET - Whaley Food Service

1. HIGH New Value Menu Structure HIGH Note The HIGH and LOW alarm settings are limited to 16 deg F from product simulator temperature set point Setting the product simulator set point will not modify the current alarm settings They must be set independently to ensure proper alarming One or more Discharge Air temperature sensors must be installed in order to enable associated alarm functions U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B LOW The LOW parameter sets the low temperature alarm set point for the discharge air sensor s temperature This set point and associated alarm is valid for the Safe NET system when applied as a Monitoring or Control system The configurable range of the LOW alarm control set point is 16 E Setting this parameter is done in the SETUP menu After navigating to the LOW sub menu item the display will cycle between LOW and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the
2. CD 08 A Safe NET control module Is required for this mode Stepper motor control for Sporlan CDS 8 See section on Safe NET wiring for proper equipment techniques and safety considerations U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B ES 20 Stepper motor control for Alco ESR 20A A Safe NET control module is required for this mode See section on Safe NET wiring for proper equipment techniques and safety considerations ES 12 Stepper motor control for Alco ESR 12A A Safe NET control module is required for this mode See section on Safe NET wiring for proper equipment techniques and safety considerations NONE No valve or other temperature control mechanism attached Safe NET used for monitoring purposes only CSELF Safe NET display module performing ON OFF control independent of a Safe NET control module but operating under a control module for defrost coordination Such applications could include walk in coolers with multiple evaporators SELF Safe NET display module performing ON OFF control independent of a Safe NET control module The Safe NET display module can exist on a network as a sole entity receiving command from a master device It controls all functions of the fixture if so equipped defrost lighting dual temperature operation temperature control alarming etc Hussmann Corpo
3. UP or DOWN arrow or button may be used l ENTER Key or SELECT Button Press Automatic Menu Navigation Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 4 2 MENUS MENU NAVIGATION OVERVIEW The presentation of the Safe NET Menu system and associated button and key operation vary somewhat according to the currently displayed menu item and or action to be performed Individual menu items definition of purpose associated action and keypad button behavior is described in detail in the following sections Some actions and behaviors of the Safe NET Menu system are consistent throughout These should be taken into account to avoid confusion when navigating the Safe NET Menu system TIME OUTS Password Once the valid 595 PASSWORD has been entered it will remain active for 5 minutes A 5 minute timer is restarted each time a new value is confirmed with the ENTER key on the Hand Held device or pressing the SELECT button on the Safe NET Display module Re setting the Safe NET Display module clears the PASSWORD entry and sets the 5 minute timer to 0 Therefore if a setting is modified that requires the Safe NET Display module to be reset and subsequent values require modification the PASSWORD must be re entered P N 0461391_B Inactivity Anytime the display is moved from the default display whether a PASSWORD has been entered or values and settings are simply being viewed and not modified the display w
4. BUTTON ACTION This photo identifies the buttons and the corresponding action on the Safe NET Display Module SELECT Button UP Button DOWN Button Safe NET Display Module Button Action Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 3 This photo identifies the buttons and the corresponding actions and alternate actions on the Safe NET Hand Held Controller SETUP CLOCK DEFROST Discharge Return Terminate DISPLAY TEMPS VALVE DEFAULT Left Center Right ESCAPE 4 CLEAR Back Drain dies ENTER gt Inlet Outlet Product SHIFT DIMMER HUSSMANN Safe NET Hand Held Controller Safe NET 4 4 MENUS DISPLAY SYMBOL IDENTIFICATION E 1 E 2 E 3 E 4 B 5 E 6 E 7 E 8 Ej 9 E 0 B P N 0461391 B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B 4 5 EASY ACCESS MENU The Easy Access Menu provides one button access for viewing and modifying those values and parameters most frequently required by both users and technicians When using the buttons on the Safe NET Display module a single press of the SELECT button enters the Easy Access Menu Using the Hand Held device pressing the ENTER Nopassword key will access this menu required to edit To access the top level menus and their associated items and sub menus using the Safe NET Display module buttons first enter the password and then press both the UP and DOWN buttons simultan
5. NET display module The display will revert to cycling between PASS and 595 This enables editing of critical system parameters The user may now navigate the menu system and edit parameters as necessary Note The password protected access remains active for 5 minutes Each time a new parameter is entered by pressing the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module the 5 minute timer is restarted After 5 minutes with no parameter entries the password value reverts to 0 and the password entry process must be performed to regain access to critical parameters The SETUP menu can be navigated without a valid password in a view only mode DSET The DSET parameter sets the discharge air set point This set point is the control point when the Safe NET system is configured to provide temperature control of the refrigerated fixture The configurable range of the HIGH and LOW alarm set points is centered around this parameters settings Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 11 When the Safe NET system is applied as a temperature monitoring device only this set point has no effect other than limiting the range of the HIGH and LOW alarm set points DSET MW Value DSET DSET amp NewValue Menu Structure DSET Setting this parameter is done in the SETUP m
6. P N 0461391 B DTYP No A DTYP New Value E gt Menu Structure DTYP Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between FSET and the new value Note A relay module properly connected to defrost heaters solenoids etc is required for this control function DTYP cannot be changed if case model type is a Chill Chamber 140 1408 570g 1230 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B 4 33 INDC The INDC parameter is used to select the value or information presented on the Safe NET display during a INDC 7 DEFR defrost cycle Since during defrost temperatures in the Y conditioned space rise significantly above the controlled AS setpoint 1t is desirable that an alternate value or y indication be presented during this time The display can provide an indication that a defrost cycle is in progress or RE simply mask the rise in temperature by displaying an alternate value 1 DEFT Displayed during the defrost cycle and after refrigeration is resumed until the controlling Menu Structure INDC temperature is within 5 deg of setpoint 2 ACTS The controlling temperature
7. With RST displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module This will initiate the start up sequence in the Safe NET system All operating parameters are read from NV memory and the Safe NET system begins monitoring or control activity from a start up condition Note If an alarm condition was present at the time of RESET the alarm will be cleared and any associated alarm delay timers are initialized to 0 If the Safe NET system is applied as a temperature controller the outputs may energize briefly during the start up sequence RST Menu Structure RST NSEN The NSEN parameter displays the number of temperature sensors attached to the Safe NET display module The Safe NET display module scans the sensor network during each reset cycle to locate and identify the attached sensors Subsequent to a reset action the number of sensors detected is displayed here The number of sensors is stored in NV memory and is continuously compared to the number of responding sensors In this way failed or additional sensors are detected Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 15 Setting viewing this parameter is done in the SETUP menu After navigating to the NSEN sub menu item the display will cycle between NSEN and the current number of sensors stored in NV memory While the NSEN value is being displayed press ENTER on the Hand Held
8. 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B FCTL The Safe NET system is capable of controlling defrost activity and scheduling This menu setting determines evaporator fan operation during defrost 1 Selecting DTCL causes the fans to cycle in conjunction with the defrost termination temperature activated switch Fan operation is inverted from the switch operation to cause the fans to be off during defrost and on running after defrost termination 2 If NONE is selected fan control is disabled during defrost 3 DFON causes the evaporator fans to run throughout the defrost cycle 4 DFOF turns the fans off during defrost The evaporator fans will resume operation when defrost terminates from time or temperature or after a preset coil temperature is reached This value is set in the setup STUP menu Setting this parameter is done in the DEFROST menu After navigating to the FCTL submenu the display will cycle between FCTL and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 35 Once the desired setting is
9. 6 seconds Power Failure If external power to the unit is interrupted the backup battery on the alarm board supplies power to maintain the non volatile memory in the display module To conserve power the display LEDs are blanked except for a period of 6 seconds every 3 minutes when product temperature is displayed Product temperature alarms can be generated during external power loss The audible alarm is active only for product temperature alarms P N 0461391 B Low Battery During normal operating conditions the alarm module monitors battery condition The display shows bAtt when the battery becomes low on power and the beeper on the alarm board beeps every 2 minutes to indicate a low battery condition The low battery audible alarm is active only when external power is applied Connection Failure Loss of communication between the display module and the alarm module activates an alarm When the display module generates a loss of communication alarm the RED LED on the display module is lighted Every 12 seconds A Er is displayed for 3 seconds for the remaining time the product simulator temperature is displayed The beeper on alarm board beeps every 30 seconds The A Er audible alarm is active only when external power is applied Precedence of Alarms Severity of the alarm determines the beeper action The following table shows the priority of the alarms Beeper OFF Time seconds Display Alarm Action S
10. Module power supply Sensor Harness Safe NET technology provides an ideal system for verifying and maintaining compliance with Federal Department of Agriculture FDA and National Sanitation Foundation NSF regulations It uses a Temperature Sensor standard communication protocol compatible with many third party systems to enable communication with a PC ARV ARL Kit Alarm Temperature Monitoring Safe NET lets you monitor temperatures in up to 10 different areas of each case discharge air return air Typleal Sate NET Installation product temperatures coil inlet and outlet temperatures etc Temperature readings are logged for later review The system sends an alarm if temperatures exceed predefined limits COMPONENTS All components of the Safe NET system displays sensors and control modules are factory installed A single case to case plug in connector is all that is required for field installation Typical Safe NET Components Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 1 2 INTRODUCTION Display Module Optional Wireless Hand held Controller and or PC Control The display module is a slim four digit binary coded decimal LED unit which mounts in the case fascia panel The wireless controller communicates with the display It lets you check temperatures at a glance and performs a unit through an infrared sensor This allows setups and variety of other monitor
11. deactivate evaporator fans and or alarm DUAL Allows for dual temperature operation of cases so equipped Setting this parameter is done in the SETUP menu After navigating to the INPT sub menu item the display will cycle between INPT and the current set point While the set point 1s being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value P N 0461391 B INPT Value INPT gt none ALAR y DFRT y CLEN y DOOR y DUAL We Menu Structure INPT INPT New Value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between INPT and the new value Note Configuring the switch for operation not enabled by hardware will result in erroneous alarms and unpredictable performance The Safe NET system must be RESET for the new value to take effect U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B 4 29 INPT cannot b
12. device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to 0 NSEN Mp Value NSEN 0 Y 1 y 2 A 10 NSEN E gt New Value RST Menu Structure NSEN Safe NET 4 16 MENUS With 0 displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module This will store the 0 value to NV memory The display will revert to cycling between NSEN and the new value Navigate to the RESET sub menu With RST displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module This will initiate the start up sequence in the Safe NET system and scan the new sensor configuration NV memory Note Typically this number need not be changed It should only be changed when the sensor harness has been replaced or a new sensor has been added The Safe NET system must be RESET for the new value to take effect Setting the number to a value other than 0 is not recommended P N 0461391 B LGHT This setting assigns one of four possible outputs for control of case lighting The Safe NET system has an o
13. module for display purposes only Because this value is not user changeable no PASSWORD is required If no data is available or communication between the Safe NET display module s and the Safe NET control module has failed will be displayed The value is updated at 5 second intervals from the Safe NET control module pe P 2T Menu Structure CLAV CLAV Value Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 43 DSVR The Safe NET display module software version The value is not user changeable so a PASSWORD isn t needed CA Menu Structure DSVR DSVR Value DHVR Safe NET display module hardware version The value is not user changeable so a PASSWORD isn t needed EC gt Menu Structure DHVR DHVR Value CSVR Safe NET Control module software version The value is not user changeable so a PASSWORD isn t needed lees No T Menu Structure CSVR CSVR Value CHVR Safe NET Control module hardware version The value is not user changeable so a PASSWORD isn t needed E gt Menu Structure CHVR CHVR Value Safe NET 4 44 MENUS C OF When a current voltage monitor is attached to the Safe NET display module this menu item is used to enter a calibration value to compensate for hardware tolerances and to assure accurate recording of A
14. that the sensed temperature of the product simulator exceeds the pre set high temperature alarm setting for the product simulator temperature for a period equal to or greater than the PD L setting the alarm is signaled This is true for low temperature alarms as well There is only one time delay associated with all product simulator temperature alarms Setting this parameter is done in the SETUP menu After navigating to the PD L sub menu item the display will cycle between PD L and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between PD L and the new value P N 0461391 B PD L Value PD L O 240 min PD L New Value lt gt Menu Structure PD L Note The HIGH and LOW alarm settings are limited to 16 deg F from set point Setting the set point will not modif
15. 0 522 1900 e WWW HUSSMANN COM P N 0461391 B ALARMS A red LED on the board turns on during alarm The display will show a four character word for about 3 seconds alternating with the default display for 9 seconds Following are details of alarms applicable to Self contained cases Alarm with Sensor Number SEnS This alarm is generated when the control is initialized and indicates that the number of sensors entered in the control is different from the number of sensors connected to the control This Alarm can be cleared only by changing the reading for number of sensors to 0 and resetting the display module or by pressing the SELECT button while the display is showing SAFE NET during power up which then updates the reading to the number of sensors connected This is caused by the control not being set up correctly or by a sensor having failed Alarm with Sensor reading noSn This alarm is generated when the display module is unable to read the sensors for five consecutive seconds This may be caused by a sensor being disconnected or shorted This alarm clears automatically when the control is able to read the sensors Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Discharge Air High Alarm dSHi This alarm is generated when the average discharge air temperature in the case over the programmed alarm delay time 1s higher than the High Alarm value stored in the control This ala
16. 2 MENUS 3 Mod Modular defrost is selected to support HUSSMANN medium temperature Impact cases with modular coils installed Each 4 foot section of coil defrosts in sequence up to 28 minutes each hour overridden by termination temperature if temperature is reached before the timer expires 4 ELE2 ELE2 type defrost will terminate the defrost cycle based on time or termination temperature The defrost heaters will de energize but refrigeration will not start until a command is received from a master device This is done to coordinate restart of refrigeration after all cases in a system have finished their associated defrost cycle 5 GAS Not Available at this time 6 ELEI ELE1 type defrost will terminate the defrost cycle based on time or termination temperature The defrost heaters will de energize and refrigeration will start simultaneously This type is for stand alone operation of low temperature units Setting the DTYP parameter is done in the DEFROST menu After navigating to the DEFROST submenu item the display will cycle between DTYP and the current setting While the setting 1s being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting
17. 70g 1230 STAR The STAR parameter sets the time of day for the first defrost cycle and works in conjunction with the NDEF parameter discussed below This time setting is for the initial defrost in a 24 hour period The NDEF number of defrosts determines the number of defrosts that will occur in a 24 hour period beginning with the STAR first defrost parameter The maximum number of defrosts allowed in a 24 hour period is 8 The defrost cycles are spaced evenly across the 24 hour period beginning with the STAR time The formula for calculating defrost start times is as follows U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B Defrost interval 24 NDEF First defrost cycle start time STAR Second start time STAR Interval Third start time STAR 2 X Interval Eighth start time STAR 7 X Interval For example with a STAR value of 01 00 and an NDEF setting of 4 the defrost cycle start times are 1 00 A M 7 00 A M 1 00 PM 7 00 P M This scheme applies to all types of defrosts Setting the STAR parameter 1s done in the DEFROST menu After navigating to the STAR submenu item the display will cycle between STAR and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the minutes value When the Safe NET display module begins flashing the value use
18. C K 5 Value Y STOP Y START Y FCTL K 3 Value Y TSET K 3 Value Y DURA EC 3 Value Y TTYP K gt Value Ad STAR K gt Value Y NDEF K 5 Value Menu Structure Defrost Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 31 Note Changing these parameters as well as performing maintenance functions requires that a valid PASSWORD be entered first The procedure for entering the PASSWORD is covered in the associated section of this manual DTYP The Safe NET system 1s capable of controlling defrost activity and scheduling The Safe NET system 1s capable of controlling six types of defrost OffC DET Mod ELE2 GAS and ELEI 1 OffC Off Cycle During off cycle defrost refrigeration to the fixture is stopped by either cycling off the compressor if so equipped shutting off the liquid line solenoid valve shutting off the suction stop solenoid or closing the EEPR if so equipped Termination of the defrost cycle can be configured as temperature time time temperature or via a command received from a master device when in a network configuration 2 DET Defrost terminates when the digital input is high This requires the digital input of the Safe NET display module to be connected to the defrost termination temperature activated switch Defrost will terminate when the coil temperature satisfies the setting of the termination temperature activated switch Safe NET 4 3
19. HUSSMANN Safe NET Software Version 9 03 or Later Technician s Manual 2008 HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A July 2008 U S amp CANADA 1 800 922 1919 e MEXICO 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B P N 0461391 B lii CONTENTS INTRODUCTION What is Safe NET Loos eo Lut es 1 1 Alarms E NI 3 7 Temperature Monitoring 1 1 SENG n3 skEP enr A DEEP ERE TI digas 3 7 Components eese 1 1 DOS ts baee b EE ERR RAS ERES 3 7 Display Module 1 2 OS adas seres 3 7 Digital Sensors iu ose diuo ph mad 1 2 A q E A dd E 3 7 Optional Wireless Hand held Controller COM Leste ette osse dada sa sab de 3 8 and or PC Control 1 2 luin e PR are ae ae ae oa 3 8 PELO 222239 X43 nee RARE EAE 3 8 INSTALLATION Impact Multiple Coils 3 8 SC C Losdkavaues ERE RS A ANE ERA 3 8 Self Contained Case lusus 2 1 p 3 8 Three Button Rules V9 03 2 1 A RE 3 8 Door Opel sis lib a 3 9 SAFE NET DISPLAY amp ALARM MODULES MENUS Description epes xoc ereta IER TY 3 1 Safe NET Display Module 3 1 Menu Presentation Conventions 4 1 Alarm Module momo 3 1 Menu Navigation Overview 4 2 Operation zeuddabes etuer ERES DAR X ES 3 1 Time OWS 6 99 5 9 R 8 9 R 8 9 we ERR DELE 4 2 hs MP 3 1 Password 2434 cete ha prasati rasa ga 4 2 Product Temperature Alarms 3 2 pactivity Quos ceder
20. Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between LOW and the new value Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 27 Value o E LOW E Note Range is setpoint to setpoint 16 deg F New Value o Ko gt Menu Structure LO Note The HIGH and LOW alarm settings are limited to 16 deg F from product simulator temperature set point Setting the product simulator set point will not modify the current alarm settings They must be set independently to ensure proper alarming One or more Discharge Air temperature sensors must be installed in order to enable associated alarm functions Safe NET 4 28 MENUS INPT Safe NET display module is equipped with a general purpose digital input Purpose and associated actions of the input are defined in accordance with the needs of the application and or user requirements The following input definitions are available NONE Not used ALAR Safe NET Alarm Module attached Used to communicate with the Alarm Module DFRT Used to terminate defrost from switch input bi metal device 1 e KLIXON CLEN Clean switch De Activates refrigeration to the fixture and disables high temperature alarms DOOR Monitors door openings and closings to
21. PSI TEMP HI 0 500 PSI liquid temp Controlled load Volts Controlled load Amps Controlled Load Power factor Hussmann Corporation Bridgeton Missouri 63044 2483 U S A kK Value K gt Value K Value K gt Value lt A Value K Value K Value TSNR K x Value DSCL lt gt l Value DSCC K gt Value DSCR K x Value Y RETR K x Value RETC Y KO Value RETL KH Value PRDR K Value PRDC K gt Value PRDL KO Value ANTI K AH Value PRES LO TEMP LO K Value K Value Y PRES HI K Value A A TEMP HI K Value VOLTS K Value AMPS KO Value K Value Menu Structure TEMPS 4 41 Safe NET 4 42 MENUS VALVE MENU VALVE The Valve menu is used to configure temperature control g p CLAV K gt Value output type and operational parameters for units whose temperature controlling device compressor VSD liquid p l 6 op 1 DSVR culi A Value solenoid suction stop solenoid EEXP EEPR is controlled by the Safe NET display module This menu M A j DHVR K X Value also contains maintenance funct
22. Safe NET 4 20 MENUS FSET The Safe NET system is capable of controlling defrost activity and scheduling When the Safe NET system is configured to control evaporator fans during defrost this setting provides a temperature set point to resume evaporator fan operation after defrost cycle termination This provides a means to delay activation of the evaporator fans until the specified coil temperature is reached This setting works in conjunction with the FCTL menu option in the DEFROST MENU If FCTL Fan Control is disabled this setting has no effect Setting this parameter is done in the SETUP menu After navigating to the FSET sub menu item the display will cycle between FSET and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between FSET and the new value P N 0461391 B Note At least one coil temperature sensor must be installed FSET cannot be changed if case model type is a Chill Chambe
23. Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between TSET and the new value Note At least one coil temperature sensor one discharge air sensor or one return air sensor must be installed and defrost termination must be set to TSEN for this setting to have an effect TSET cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 P N 0461391_B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B DURA The DURA parameter sets the time duration in minutes a DURA ES A Value for defrost cycle operation This time applies to all types of defrosts and acts as a fail safe time for those defrosts terminated by coil temperature or the temperature DURA gt O MIN activated switch In the event that the sensed temperature of the coil does not reach the preset termination temperature in the time allotted by this setting the defrost will terminate and refrigeration will resume in accordance with the applicable settings fan control LG Rl K master comm control e
24. TUP menu by pressing the SETUP key on the Hand Held device or pressing the SELECT button on the Safe NET Display module Once the SETUP menu is entered use the UP and DOWN arrows on the Hand Held device or the UP and DOWN buttons on the Safe NET Display module to navigate the SETUP sub menu The menu navigates in a circular fashion 1 e when the last menu item is displayed pressing the DOWN arrow or button will cycle back to the top of the menu Conversely pressing the UP arrow or button when the top menu item is displayed will navigate to the bottom of the menu To exit the menu press the ESCAPE key on the Hand Held device or simultaneously press the UP and DOWN buttons on the Safe NET Display module When a menu item is displayed the Safe NET display will cycle between the menu item and its current value To edit the value of the currently displayed menu item with the value displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display The value will begin to flash Use the UP DOWN arrows or buttons to increment decrement the selected value Once the desired value is displayed flashing press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display to save the value The Safe NET display will revert to cycling between the menu item and its new value The UP DOWN arrows or buttons can now be used to navigate to any other SET UP menu item to be viewed or modified Hus
25. URA setting is always enabled as a fail safe defrost duration time in the event a selected termination input fails If the failure is such that defrost termination would occur immediately a 10 minute guaranteed defrost cycle duration is employed Setting this parameter is done in the DEFROST menu After navigating to the TTYP submenu item the display will cycle between TTYP and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between TTYP and the new value Note The sensed input selected for defrost termination must be installed and defrost termination set to TSEN for this feature to operate P N 0461391 B TTYP Value TTYP A A TIM Y DIG Y RAIR y DAIR v TSEN kx N TTYP E A New Value Menu Structure TTYP TTYP cannot be changed if case model type is a Chill Chamber 140 140S 5
26. XP This maintenance function requires that a valid PASSWORD be entered prior to pressing the ENTER key on the Hand held Device or SELECT button on the Safe NET display module F NORL Menu Structure NORL CLOSE Use this menu item to force close an EER or EEXP This maintenance function requires a valid PASSWORD to be entered prior to pressing the ENTER key on the Hand held Device or SELECT button on the Safe NET display module EN CLOSE Menu Structure CLOSE OPEN Use this menu item to force open an EER or EEXP This maintenance function requires a valid PASSWORD to be entered prior to pressing the ENTER key on the Hand held Device or SELECT button on the Safe NET display module ME OPEN Menu Structure OPEN Safe NET 4 46 MENUS SREF This menu item is for display purposes only When an EEXP EER or VSD Compressor is controlling unit temperature the relative position in steps for a stepper motor driven valve or running speed for a VSD compressor is recorded hour after the most recent defrost This is stored as a reference value and is used to control temperature by maintaining this valve position or compressor motor speed until service can be performed on the unit This value is referred to as Step Reference and is intended for engineering evaluation purposes le SREF A Value Menu Structure SREF VTYP This menu item defi
27. alue use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between PRLO and the new value P N 0461391 B PRLO Value PRLO E Note Range is setpoint to setpoint 16 deg F PRLO New Value Menu Structure PRLO Note The HIGH and LOW alarm settings are limited to 16 deg F from product simulator temperature set point Setting the product simulator set point will not modify the current alarm settings They must be set independently to ensure proper alarming A product simulator temperature sensor must be installed in order to enable associated alarm functions PRLO camnot be changed if case model type is a Chill Chamber 140 1408 570g 1230 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B ADLY The ADLY parameter sets the alarm delay in minutes for the discharge air temperature In the event that the sensed temperature of the product simulator exceeds the pre set high temperature alarm setting for the discharge air temperature sensor for a period eq
28. are view only If a valid PASSWORD was entered prior to entering the submenu editing the submenu items will be allowed as described in the following sections When using the Safe NET display module buttons for menu access a valid password is required to navigate to the top level menus from the Easy Access Menu Therefore all submenu items are available for editing After a submenu has been entered with the UP or DOWN buttons the SELECT button functions as an enter key to select submenu items for modification and to confirm new submenu item values after modification via the UP or DOWN buttons Hussmann Corporation s Bridgeton Missouri 63044 2483 U S A After a submenu has been entered using the UP or DOWN buttons the UP DOWN buttons become activated to navigate the submenu and to modify submenu item values when the value of interest 1s selected by pressing the SELECT key The SELECT ENTER button will continue functioning as an ENTER button until a reset occurs a power up down sequence occurs or an escape sequence is executed Once any of the aforementioned occurs the SELECT button reverts to its original function of navigating top level menus Safe NET 4 8 MENUS This page intentionally left blank P N 0461391_B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 lt WWW HUSSMANN COM P N 0461391_B SETUP MENU The SETUP menu is used to configure operating parameters of the Safe NET system Enter the SE
29. ature Replace top cover of the display module after modifications are complete Verify that alarm LED indicators are on the left side as shown in Figure 1 on page 1 Safe NET DISPLAY 8 ALARM MODULES Wiring Diagram for Display Module and Alarm Module Safe NETTM Battery Backup with Piezo Alarm revision 1 01 Alarm Module 0 audible alarm piezo ALARM r GROUND RS 485B 06 17 05 MPK ANTI SWEAT COMPRESSOR GROUND RS 485A DEFROST FANS 12VDC 12VDC FANS DEFROST RS 485A GROUND COMPRESSOR ANTI SWEAT RS 485B 12VDC GROUND fill 9V Battery Display Module F RS 485 unterminated e e e o P2 12VDC 1 om O alarm RS 485B 2 RS 485A 3 O ses Ground 4 1 1 Ley 1 DRY CONTACT P5 E E dk 5 pia IS SGUND TxD 1 2 5vpc PSEN 3 4 RXD P1 RST 5 6 GND 1 1 9m 1 1 RS 485B P4 or 2 2 2 2 ANTI SWEAT we 4 1 3 3 BK 3 3 LIGHTS 5VDC 2 2 red wht GROUND SENSE E 3 s gt 2 red gt R uS 5 RS 485A GROUND 4 4 ck 6 6 6 6 DEFROST 7 7 T 7 7 FANS re 8 8 8 8 12VDC 8 7 6 5 4 3 2 1 Power Supply gl 1 254 12VDC i 0459302 P N 0461391 B 90VAC 264VAC gt NEUTRAL gt T9RKE1250LCP Y AC power cord 0459303 7031116F000 U S amp Canada 1 800 922 1919 Mexico 1 80
30. cess Menu On the Hand Held controller press the UP button at the top of the SETUP menu The display will begin to cycle between PASS and 0 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 lt WWW HUSSMANN COM P N 0461391_B While 0 is being displayed press the SELECT button to allow editing of the value With the Safe NET display module flashing 0 use the UP DOWN buttons to increment or decrement the value until it reaches 595 595 is the password value Once 595 is displayed press the SELECT button The display will revert to cycling between PASS and 595 This enables access to the top level menus for editing of parameters The user may now navigate the menu system and edit parameters as necessary Note The password protected access remains active for 5 minutes Each time a new parameter is entered by pressing the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module the 5 minute timer is restarted After 5 minutes with no parameter entries the password value reverts to 0 and the password entry process must be performed to regain access to critical parameters Using the Hand Held device all menus can be navigated in a view only mode without having entered a valid password When using the buttons a valid password is required to exit the Easy Access Menu and gain access to the top level menus MODIFYING SET POINTS With the password active and the display reading pr
31. control module network master device Setting this parameter is done in the SETUP menu After navigating to the DSPN sub menu item the display will cycle between DSPN and the current address setting While the address value is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired address Once the desired address 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between DSPN and the new value P N 0461391 B Note The Safe NET system must be RESET for the new value to take effect Factory default is none DSPN cannot be changed if case model type is a Chill Chamber 140 1408 570g 1230 DSPN y Value DSPN 5 c 6 E 7 248 DSPN KC NewValue Menu Structure DSPN RST Resetting Warm Boot of the Safe NET system can be achieved by navigating to the RST sub menu within the SETUP menu U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B
32. cycles are spaced evenly across the 24 hour period beginning with the STAR time The formula for calculating defrost start times is as follows Defrost interval 24 NDEF First defrost cycle start time STAR Second start time STAR Interval Third start time STAR 2 X Interval Eighth start time STAR 7 X Interval NDEF 1 Y 2 Y 3 SA y 8 NDEF kK KOA New Value Menu Structure NDEF P N 0461391_B For example with a STAR value of 01 00 and an NDEF setting of 4 the defrost cycle start times are 1 00 A M 7 00 A M 1 00 p m 7 00 P M This scheme applies to all types of defrosts Setting this parameter is done in the DEFROST menu After navigating to the NDEF submenu item the display will cycle between NDEF and the current setting While the setting 1s being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of this value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between NDEF and
33. displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between FCTL and the new value Note At least one coil temperature sensor must be installed for fan control by coil temperature FCTL cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 DEFR DTYP x Value v STOP v STRT v FCTL K 3 DCTL Y i NONE v DFON DFOF Menu Structure FCTL Safe NET 4 36 MENUS TSET The Safe NET system is capable of terminating defrost TSET gt Value activity based on evaporator coil temperature return air or discharge air When the Safe NET system is configured to control defrost the TSET setting provides a temperature set point at which to terminate a defrost TSET gt cycle This setting is only effective when defrost termination is set to TSEN RAIR or DAIR Setting this parameter is done in the DEFROST menu After navigating to the TSET submenu item the display will cycle between TSET and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When Menu Structure TSET the
34. e previous page PASSWORD PROTECTION Parameters that are critical to proper equipment performance cannot be modified until a numeric password is entered into the Safe NET display module This prevents accidental or malicious changes in the Safe NET system from occurring The password is entered in the Easy Access Menu of the display module or in the SETUP menu when using a Hand held controller On the Safe NET display module press the UP button at the top of the Easy Access Menu On the Hand Held controller press the UP button at the top of the SETUP menu The display will begin to cycle between PASS and 0 P N 0461391 B While 0 is being displayed press the SELECT button to allow editing of the value With the Safe NET display module flashing 0 use the UP DOWN buttons to increment or decrement the value until it reaches 595 595 is the password value Once 595 is displayed press the SELECT button The display will revert to cycling between PASS and 595 This enables access to the top level menus for editing of parameters PASS y 0 PASS gt Note UP DOWN increments decrements by 7 s PASS y 59 Menu Structure Password U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B Once 595 is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe
35. e Discharge Air temperature sensors must be installed in order to enable associated alarm functions ADLY cannot be changed if case model type is a Chill Chamber 140 1408 570g 1230 Safe NET 4 26 MENUS HIGH The HIGH parameter sets the high temperature alarm set point for the discharge air temperature sensor s This set point and associated alarm is valid for the Safe NET system when applied as a Monitoring or Control system The configurable range of the HIGH alarm control set point is 16 F Setting this parameter is done in the SETUP menu After navigating to the sub menu item the display will cycle between HIGH and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between HIGH and the new value P N 0461391_B HIGH Value HIGH gt Note Range is setpoint to setpoint 16 deg F
36. e SELECT button is used to scroll through the following menus EASy Easy Access Menu StUP Setup CLoC Clock dEFr Defrost tEM Temperature uALu Valve diSP Display Default User must enter valid password to edit protected parameter settings and exit the Easy Access Menu Protected parameter settings are determined by Case Model and the PSEn setting To edit any menu item press either the UP or DOWN button to enter the selected menu P N 0461391 B Use the SELECT button to modify and save the parameter once the UP or DOWN button is pressed The display cycles between menu item and edited menu value once the edited value is entered using the SELECT button The display returns to showing the product simulator temperature if no button is pressed for 12 seconds once the menu is displayed User must scroll through the menus using the SELECT button to return to the SETUP menu Holding a button down has the same effect as pressing once PASSWORD Parameters that are critical to proper equipment performance cannot be modified until a numeric password is entered into the Safe NET display module This prevents accidental or malicious changes in the Safe NET system from occurring The password is entered in the Easy Access Menu of the display module or in the SETUP menu when using a Hand held controller On the Safe NET display module press the UP button at the top of the Easy Ac
37. e changed if case model type is a Chill Chamber 140 140S 570g 1230 CASE none y ARV y CASE ARL y s ISCS This menu item allows the user to configure operating Y parameters based on case type Selecting the appropriate G5U case type and then performing a RESET on the Safe NET Y system loads the default operating parameters into the S NV memory DDS y MBC The Safe NET menu system can be used to tailor these parameters to meet specific needs Once modified from the HGM default setting they will remain active until modified by Y FRR the user again CLR An extra level of security has been added to this y modification procedure to further protect the operating X parameters from errant modification CEF y To change the case type a2 D5 E Navigate to the CASE menu Press the UP or DOWN y arrows on the Hand Held device or the UP DOWN buttons on the Safe NET display module until NONE is RLIC displayed Press the ENTER key on the Hand Held device y or the SELECT button on the Safe NET display module E Again use the UP DOWN keys or buttons to navigate to NIM the desired case Press the ENTER key on the Hand Held Y device or the SELECT button on the Safe NET display DER module Then RESET the Safe NET display module On RESET the Safe NET display module will load the appropriate default se
38. e rd eR ECL 4 2 Power Failure 222122 3 2 ESCHDB a AT E R cade RR des 4 2 Low Battery odamecabeekke hee RETE 3 2 CLICA 21259 RR ROLES EDRRE EE EE DR IE ES 4 3 Connection Failure 3 2 Button Action clues 4 3 Precedence of Alarms 3 2 Display Symbol Identification 4 4 Alarm Set Points 4 225222 oras 3 3 Easy Access Menu 2 sees 424553 4 5 Modifying ARL ARV Settings 3 3 lop Level Menus 1130 00 kr Ren 4 6 DaSSWORl sis cs a bs 3 4 setup Menu 4 9 Modifying Set Points 3 5 Password Protection 4 10 Wiring Diagram for Display Module DSED cormicrngrrlia RARE ARX EG 4 11 and Alarm Module 3 6 PSEN ardida aie edible dia 4 12 CNEN O ots apes d 4 13 DSPN sapadas cota nae ea tei do e e 4 14 IMPORTANT KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards E US L m n n n 12999 St Charles Rock Road Bridgeton MO 63044 U S A 314 291 2000 FAX 314 298 4767 iv CONTENTS Continued O A Sce 4 14 OPEN aaa leh be a eae ae 4 45 NSEN Y ada inane e Rack s 4 15 RBA ehe ex ced m PCIE 4 46 EGHT vb Sx e Rue Ras 4 16 Va d ECCE RS 4 46 DEGR Ia eae Ind ge 4 17 VPOS iS 4 47 DUTY data 4 18 Display Default 4 48 DIEF cassa oop sede ue a de eds 4 19 Dimmer ias 4 49 ESET ets ld RE R 4 20 CARD Ga a 4 20 DCOP Sismo iia dera OSA 4 21 WARRANTY O A Merc Otte Aue reda 4 22 PRAT Ja Sex lors t
39. e to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between DUTY and the new value Note Default Duty cycle setting is 0 DUTY y Value DUTY gt 0 c 1 v 2 p J 100 DUTY Co New Value Menu Structure DUTY U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B DIFF The Safe NET system is capable of controlling temperature inside the refrigerated space of a refrigerated merchandiser The Safe NET system can achieve this control in the various ways discussed earlier When ON OFF control is selected the control methodology makes use of a set point and a control band known as a differential DIFF For example with a DIFF setting of 10 and DSET set point of 10 deg E the ON OFF control method will attempt to maintain the 10 by cycling the control device ON at temperatures above 10 and OFF at 0 This temperature control is superceded by a fixed minimum ON time of 3 minutes Hence lower DIFF settings will
40. en employees or service personnel must have the option of changing the operating set point of the refrigerated fixture While PSEN allows easy modification of the operating set point and TOD clock no other operational settings can be modified without entering a password P N 0461391_B Setting this parameter is done in the SETUP menu After navigating to the PSEN sub menu item the display will cycle between PSEN and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to step through the selections Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between PSEN and the new value Note Factory default is NO to disable password protection for CLOCK and DSET PSEN MY Value psen YES NO PSEN 4 y New Value Menu Structure PSEN U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B CNTN The CNTN parameter sets the network address of the Safe NET control mod
41. enu After navigating to the DSET sub menu item the display will cycle between DSET and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Safe NET 4 12 MENUS Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to non volatile NV memory The display will revert to cycling between DSET and the new value Note The HIGH and LOW alarm settings are limited to 16 deg F from discharge air set point Setting the discharge air set point will not modify the current alarm settings They must be set independently to ensure proper alarming The discharge air set point has a range of 55 to 170 deg E Proper performance is not guaranteed outside 40 to 50 deg E The Safe NET system must be RESET for the new value to take effect DSET may be selected as the default display item for the Safe NET display module PSEN The PSEN option enables disables password protection for the DSET parameter and allows the TOD clock to be set This may be desirable wh
42. eously to escape from Easy Access Menu Self Contained Cases the Easy Access Menu Subsequent presses of the SELECT button will cycle through the top level menus as explained below Using the Hand Held device pressing the associated menu keys SETUP CLOCK DEFROST TEMPS VALVE and DISPLAY will navigate the user directly to the top level menu associated with the key The password need only be entered to change parameters No password required to edit Easy Access Menu DDSS NIM Cases Easy Access Menu Remote Cases Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 4 6 MENUS TOP LEVEL MENUS There are seven top level menus These seven top level menus and associated submenus provide the means to configure all parameters in the Safe NET Display module The seven top level menus can be accessed via the Hand Held Device by pressing the associated keys SETUP CLOCK DEFROST TEMPS VALVE DISPLAY DEFAULT and DIMMER By using the SELECT button on the Safe NET display module the seven top level menus can be sequentially accessed only after entering a valid password in the Easy Access Menu The seven top level menus submenus actions and definitions are discussed in detail in the following sections SELECT Button Action The SELECT button on the Safe NET display module performs two functions as follows 1 When the Default Display is shown on the Safe NET display the SELECT button navigat
43. es through the top level menus in sequence after entering a valid password in the Easy Access Menu Each consecutive press of the SELECT button will advance to the next top level menu After initial power up or following a unit reset navigation begins at SETUP and advances in accordance with the pattern outlined below CLOCK m gt DEFROST TEMPS gt VALVE DISPLAY gt SETUP gt T P N 0461391_B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B If the unit reverts to the default display due to either an inactivity time out or use of the escape button sequence pressing the SELECT button will advance to the next top level menu in sequence as shown above Once a top level menu is displayed the first sub menu item and its associated value will be displayed after 1 second Pressing the SELECT button will move to the next top level menu in sequence and the submenu value cycling will repeat for the new top level menu ET SELECT Top Level Menu Top Level Menu P Button Pressed P 1 Sec 1 Sec Submenu K Value Submenu a A Value 2 After using the SELECT button to navigate to the desired top level menu pressing the UP or DOWN button will enter the associated submenu If no PASSWORD was previously entered when using the Hand Held device submenu items
44. etting Safe NET 4 18 MENUS Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between DSET and the new value Note Ensure all operators and service personnel are aware of the units setting to eliminate confusion concerning case performance DUTY The Safe NET system has an optional Relay Board component that when attached allows the Safe NET display board to control up to four outputs The possible controlled output devices are 5 Compressor CMP 6 Evaporator Fans FANS Defrost Heaters DHTR Anti Sweat Heater ANTI oo q The DUTY parameter determines the percentage of ON time for control of Anti Sweat heaters if installed and controlled by the Safe NET display module The control period is 100 seconds A range of 0 to 100 is possible with 0 OFF CONTINUOUSLY to 100 CONTINUOUSLY ON Adjusting this parameter can improve energy consumption However a setting of sufficient ON time is required to prevent condensation from appearing on the fixture frame P N 0461391 B Setting this parameter is done in the SETUP menu After navigating to the DUTY sub menu item the display will cycle between DUTY and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display modul
45. everity Product HIGH LOW Alarm PrHi PrLo 6 Connection Failure pel 30 Low Battery U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 lt WWW HUSSMANN COM P N 0461391 B An alarm with higher severity takes precedence over a low severity alarm For example if there is a product alarm and low battery alarm The alarm board beeper beeps every 6 seconds to indicate the product temperature alarm Indication of the low battery alarm is ignored by the beeper but is active in the display Every 12 seconds the display shows PrHi for 3 seconds followed by bAtt for 3 seconds For the remaining time product simulator temperature is displayed Alarm Set Points Following are the alarm set points for ARL and ARV Cases Notes Case Set Product Product Product Alarm Model Point High Alarm Low Alarm Delay Set Point Set Point Minutes ARL 8 F DoF 99 90 ARV 36 F 43 32 F 60 high temperature alarm typically activates during case startup This is normal since the refrigerated space requires an extended period to reach operating temperature Product must not be loaded until operating temperature is reached Premature stocking may result in product loss Battery backup operation is possible for up to 6 hours The initial condition of the battery determines the length of time Operation of Safe NET is compromised once the battery runs low Produc
46. he UP DOWN buttons on the Safe NET display module to increment or decrement the hour to the desired value Once the desired hour is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new time The display will now cycle between CLOC and the new time P N 0461391 B To exit the menu press the ESCAPE key on the Hand Held device or press the UP and DOWN buttons on the Safe NET Display module simultaneously CLOC y HHM AC CLOC HH 00 HH 01 HH 02 4A HH 59 dl 00 MM PNE NEM 01 MM y 02 MM SA 23 MM m cLoc C HHMM Menu Structure CLOC U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B DEFROST MENU The DEFROST menu is used to configure defrost type and scheduling for units whose defrost is controlled by the Safe NET display module This menu also contains maintenance functions for use in manually controlling defrost for troubleshooting and repair activity A relay module properly connected to defrost heaters solenoids etc is required for the defrost cycle control function See section on Safe NET wiring for proper equipment techniques and safety considerations DEFR DTYP K 5 Value Y IND
47. ht hand section of an 8 or 12 ft case THE PRHI AND PRLO ALARMS ARE AVAILABLE ONLY IF PRODUCT SENSORS ARE INSTALLED Product Low Temperature Alarm PrLo This alarm will be generated if the product simulator average is below low alarm set point for product alarm delay time P N 0461391_B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391 B 3 9 Door Open Alarm This alarm will be generated only if the input of the display is connected to a door switch and the input configuration on the display board is set to door It is generated when the door is kept open for more than 2 minutes and will be cleared when the door is closed The display alternates two words cLoS and door until the door 1s closed Door Open If the doors are left open for more than 5 minutes even after the alarm the fans are turned back on Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 3 10 ALARMS This page intentionally left blank P N 0461391_B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 lt WWW HUSSMANN COM P N 0461391_B 4 1 MENUS MENU PRESENTATION CONVENTIONS Denotes that the Safe NET Display is cycling between displayed menu items and parameter values DSPN kK x Value DOWN arrow or button press Denotes circular menu navigation Denotes menu item or value on display UP arrow or button press
48. ice or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between LGHT and the new value Note The Safe NET system must be RESET for the new value to take effect Assigning an output in error will result in unexpected case operation Output assignments are labeled on the relay module Light output will default to ON ONIOFF control is by network command LGHT cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 Hussmann Corporation Bridgeton Missouri 63044 2483 U S A DEGR The DEGR parameter determines the units in which the Safe NET display module presents temperature information The Safe NET display module is capable of displaying either degrees Fahrenheit or degrees Celsius DEGR 4 Value DEGR F E DEGR amp 3 New Value Menu Structure DEGR Setting this parameter is done in the SETUP menu After navigating to the DEGR sub menu item the display will cycle between DEGR and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the s
49. ill revert to the default display after 10 seconds This occurs if no key is pressed on the Hand Held device or button on the Safe NET Display module If a valid PASSWORD has been entered and the display reverts to the default display due to keypad and or button activity the PASSWORD will remain active for the remainder of the aforementioned 5 minute timeout period To resume modifying values re enter the menu of interest while the PASSWORD is active and continue modifying values ESCAPE To leave a Menu and return to the default display press the ESCAPE key on the Hand Held device or press the UP and DOWN buttons on the Safe NET Display module simultaneously If a valid PASSWORD has been entered it will remain active for the remainder of the 5 minute time out period This allows for exiting one menu and entering another for the purpose of modifying a value without having to re enter the PASSWORD U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 lt WWW HUSSMANN COM P N 0461391_B A modified value will revert to its original value if the value has been modified but the ENTER key or SELECT button has not been pressed before pressing the ESCAPE key on the Hand Held device or simultaneously pressing the UP and DOWN buttons on the Safe NET Display module CLEAR Pressing the CLEAR key on the Hand Held device while editing a menu item value clears numeric values to 0 and resets text items to the initial available selection
50. ing and control functions via queries which can also be performed via PC over the pushbuttons or the hand held controller network Safe NET Display Module Up to 10 sensors can be connected to each display module Digital Sensors Up to 10 digital sensors can be installed in each case with a single cable connection There are 14 types of sensors Each sensor has an electronic identifier so it can be Safe NET Hand Held Controller recognized by the display module This eliminates the need for separate wiring Sensors in each case are harnessed together to a single wire leading to the display If the wireless controller is not available it is possible to module Sensors are designed for rugged durability program the controller directly with buttons located on Should a sensor fail it can be replaced the display module Typical Safe NET Sensor Harness P N 0461391 B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391 B 2 1 INSTALLATION SELF CONTAINED CASE Safe NET components are factory installed Once power is supplied to the case as specified in the case installation and service manual Safe NET settings are ready to be selected When power is first applied the Safe NET display will show the version of software installed The initial scroll is as follows Safe Net 9 03 Version 570g Case Model 21 default temperature display The Version a
51. ions to allow manual control of a temperature controlling device for l ipn CSVR Co x Value troubleshooting and repair activity CHVR KO Value A relay module properly connected to the compressor contactor solenoids etc is required for temperature COF regulating device control functions See section on Safe NET wiring for proper equipment techniques and SE safety considerations NORL Note Changing these parameters as well as performing CLOS maintenance functions requires that a valid PASSWORD be entered first The section describing the procedure for PEN entering the PASSWORD is covered in the associated section of this manual SREF kK X Value VTYP VPOS K 3 Value Menu Structure VALVE P N 0461391 B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B CLAV Control Average Temperature This is the temperature that the control algorithm is using as the process variable in controlling the output device This value is only present when one or more Safe NET display modules is used in conjunction with a Safe NET control module This configuration is used to control EEXP EEPR and VSD compressor configurations The value is representative of the average of the control value discharge air or product simulator temperature as reported from one or more Safe NET display modules This value is transmitted to the Safe NET display module s from the Safe NET control
52. is stored at initiation of defrost and remains as the display value for the duration of the defrost cycle 3 ACTL The actual real time controlling temperature is displayed for the duration of the defrost cycle 4 STPT The controlling setpoint value is displayed for the duration of the defrost cycle Note inde cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 4 34 MENUS STOP To prematurely terminate a defrost cycle navigate to the DEFROST submenu item The display will show STOP While STOP is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module This will terminate the defrost cycle and cause the display module to terminate according to the programmed terminate sequence DEFR 2 K gt Value StoP Menu Structure Stop P N 0461391 B START To initiate a defrost cycle navigate to the DEFROST submenu item The display will show STRT While STRT is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module This will initiate the defrost cycle and cause the display module to initiate a defrost cycle according to the programmed defrost sequence DEFR DTYP Value StoP STRT Menu Structure Start U S amp Canada
53. mpere values Setting this parameter is done in the VALVE menu After navigating to the C OF submenu item the display will cycle between C OF and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of this value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting C OF Value C OF gt 60 C OF New Value Menu Structure C OF P N 0461391 B Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between C OF and the new value Note Incorrect settings in this value will result in erroneous current readings The unit must be reset for the new values to take effect C OF cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 V OF When a current voltage monitor 1s attached to the Safe NET display module this menu item is used to enter a calibration value to compensate for hardware tolerances and to assure accurate recording of Voltage values Setting thi
54. nd Case Model will change dependant on current version and case model selected Settings are retained when power is interrupted Thus a self contained case can be moved without re entering selected settings Startup of a new Self Contained case is quite simple 1 Verify case type selected 2 Set the clock 3 Check or set the temperature setpoint THREE BUTTON RULES Version 9 03 Operation Always start by pushing the SELECT button Watch what is displayed Which menu are you in First press of the SELECT button enters the Easy Access Menu EAM This menu displays commonly viewed setpoints and information It eliminates the need to navigate multiple menus to retrieve these items The displayed items consist of two sets dependent upon the Case Model Type Hussmann Corporation Bridgeton Missouri 63044 2483 U S A For Case Models NIM and DDSS the menu sequence 1s as follows EASY dSEt tSEt StAr durA CLOC PASS and cycles back to dSEt For all other Case Models the following sequence ndEF applies EASY dSEt StAr durA PASS and cycles back to dSEt ndEF CLOC On all Case Models after the passcode has been entered press the UP and DOWN buttons simultaneously to escape from the Easy Access Menu Subsequent presses of the SELECT button will cycle through the top level menus StUP CLOC DEFr DISP and cycles back to StUP tEM VALv Pres
55. nes the temperature control method applied This can consist of electronic evaporator pressure regulating valves electronic expansion valves on off control of fixed speed compressors variable speed drive control of VSD driven compressors PWM control of liquid line solenoids and or suction stop solenoids Depending on the temperature control strategy employed a relay module properly connected to the compressor contactor solenoids etc and or a Safe NET control module is required for temperature regulating device control functions See section on Safe NET wiring for proper equipment techniques and safety considerations P N 0461391 B 0 10 This control method utilizes a 0 10VDC output The 10VDC output is supplied from the control device and is optically isolated from the Safe NET power supply A Safe NET control module is required for this mode See section on Safe NET wiring for proper equipment techniques and safety considerations This control method 1s commonly employed on VSD compressors CD 16 Stepper motor control for Sporlan CDS 16 A Safe NET control module is required for this mode See section on Safe NET wiring for proper equipment techniques and safety considerations CD 09 A Safe NET control module Is required for this mode Stepper motor control for Sporlan CDS 9 See section on Safe NET wiring for proper equipment techniques and safety considerations
56. ock To select this item for modification press the Display Default key on the Hand Held Device or use the SELECT button on the Safe NET display module The display will cycle between DISP and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting P N 0461391_B Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between DISP and the new value Note One or more sensors of the type selected must be installed to support the selection DISP K X Value DISP La DISP MY New Value Menu Structure DISP DISPLAY DEFAULT cannot be changed if case model type is a Chill Chamber 140 1405 570g 1230 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B 4 49 DIMMER The dimmer function is only available via the hand held device It is used to adjust the brightness of the display on the Safe NET control module This is fo
57. oduct temperature use the SELECT button to scroll through the menus Once the display reaches the StUP menu use the UP button until the display shows the parameter to be modified Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 3 5 To change the product low alarm set point press the UP button until the display cycles between PrLo and the current product low alarm set point To change the product high alarm set point press the UP button until the display cycles between PrHi and the current product high alarm set point To change the product alarm delay press the UP button until display cycles between P dL and the current product alarm delay Once the desired menu item is displayed press SELECT button The display cycles between the corresponding menu item and the VALUE Press the UP button to increment the value or the DOWN button to decrement the value The value of the parameter can be modified only within the following specified ranges Range of Range of Range of Case Product Product Product Model High Alarm Low Alarm Alarm Delay Set Point Set Point Minutes ARL 8 F to 8 24 Fto 8 F Oto 240 ARV 36 F to 52 F 20 F to 36 F Oto 240 When the entered value begins flashing press the SELECT button to store the new value The display cycles between the new value and the menu item Within 12 seconds after button activation the display starts showing the product temper
58. ptional Relay Board component that when attached allows the Safe NET display board to control up to four outputs The controlled outputs are assigned using the SETUP MENU The possible controlled output devices are 1 Compressor CMP Evaporator Fans FANS 3 Defrost Heaters DHTR Anti Sweat Heater ANTT The Safe NET system by design supports four control outputs Since not all possible controlled items are valid in any given configuration the Light control output is assigned to an unused output Setting this parameter is done in the SETUP menu After navigating to the LGHT sub menu item the display will cycle between LGHT and the current setting While the current value 1s being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired output U S amp Canada 1 800 922 1919 e Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B LGHT Value LGHT FP none ANTI Y DHTR FANS CMP LGHT New Value lt _ gt Menu Structure LGHT Once the desired output assignment is displayed press the ENTER key on the Hand Held dev
59. r 140 140S 570g 1230 FSET y Value FSET gt FSET 4 gt New Value Menu Structure FSET CTRL The Safe NET system is capable of controlling temperature inside the refrigerated space of a refrigerated merchandiser The Safe NET system can achieve this control in the various ways discussed earlier This parameter selects the temperature input to use in controlling the temperature of the refrigerated space Alarms and control set points are applied to this temperature input source Available sources are U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B Product Simulator Average Discharge Air Average Return Air Average Coil Temperature Setting this parameter is done in the SETUP menu After navigating to the CTRL sub menu item the display will cycle between CTRL and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to s
60. r aesthetic purposes only and has no effect on system operation There are seven levels of brightness Each successive press of the DIMMER key moves to the next level Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET
61. ration s Bridgeton Missouri 63044 2483 U S A 4 47 OnOff Safe NET display module acting as user I O for a Safe NET control module The Safe NET display module performs the on off control and schedules defrost case lighting and evaporator fan control through the Safe NET display module control outputs Note NORL CLOSE and OPEN cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 VPOS This menu item is for display purposes only When an EEXP EER or VSD compressor is controlling unit temperature the relative position in steps for a stepper motor driven valve or running speed is displayed The value range is dependent on the valve type selected VPOS EK X Value Menu Structure VPOS Safe NET 4 48 MENUS DISPLAY DEFAULT The Safe NET Display module can be configured to display one of seven values continuously when not in an alarm condition or being navigated via the Hand Held Device or the module buttons The possible selections are 1 Discharge Air Temperature Average the average of multiple sensors 2 Discharge Air Set Point 3 Average Discharge Air from a Control Module if so equipped 4 Product Sensor the lowest temperature if multiple sensors are attached 5 Return Air Temperature Average the average of multiple sensors 6 Product Simulator Temperature Average the average of multiple sensors 7 Time of Day Cl
62. result in tighter temperature control but more frequent control device compressor valve cycling Conversely higher DIFF settings will reduce control device cycling at the expense of product integrity Typically this setting is at user discretion Setting this parameter is done in the SETUP menu After navigating to the DIFF sub menu item the display will cycle between DIFF and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to change the setting Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 19 DIFF MY Value DIFF LE 0 Y 1 Y 2 Ja No 25 DIFF gt New Value Menu Structure DIFF Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between DIFF and the new value Note Typically this setting is lower in frozen applications approximately 2 degrees differential DIFF cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230
63. rm will clear if the average discharge air temperature goes below the High alarm value THIS ALARM IS AVAILABLE ONLY IF DISCHARGE SENSORS ARE INSTALLED Discharge Air Low Alarm dSLo This alarm is generated when the average discharge air temperature in the case over the programmed alarm delay time is lower than the Low Alarm value stored in the control This alarm will reset if the average discharge air temperature goes higher than Low alarm value THIS ALARM IS AVAILABLE ONLY IF DISCHARGE SENSORS ARE INSTALLED Note Programmable alarm delay AdLy is described in a later section Safe NET 3 8 ALARMS Communication Alarm CoM Sectional Faults for If there are no network communication attempts for a Medium Temperature Impact Cases period of more than 30 minutes the display module sets with Multiple Coils a communication alarm and shows it on the display A section of the modular coil is above or below the alarm When the display module itself is controlling rather than set point for the period of time set in the programmed dSPn a network the Display Number in setup must be alarm delay set to nonE to prevent alarm generation STE Center section of a 12 ft case nanE Left hand section of an 8 or 12 ft case Product High Temperature Alarm PrHi MAGIA This alarm will be generated if the product simulator average 1s above high alarm set point for product alarm delay time Rig
64. s parameter is done in the VALVE menu After navigating to the V OF submenu item the display will cycle between V OF and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of this value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B V OF KF Value VOE Lr M 60 59 58 SA 60 V OF K A New Value Menu Structure V OF Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between V OF and the new value Note Incorrect settings in this value will result in erroneous voltage readings The unit must be reset for the new values to take effect V OF cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 45 NORL Use this menu item to return to normal control after a force open or force close function has been performed on an EER or EE
65. s the SELECT button until you are in the proper menu Once in the proper menu press the UP or DOWN button to enter the menu and to scroll through the menu Once at the menu item that you want press the SELECT button until the item flashes between the value and the title You may have to press the SELECT button more than once to get the item to flash Press the UP or DOWN button to change the item Remember to push the SELECT button to save the item Also remember to set the passcode before items outside of the Easy Access Menu can be changed Pressing the UP or DOWN buttons at the same time acts as an escape to go back out of the menus Safe NET 2 2 INSTALLATION This page intentionally left blank P N 0461391_B U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 lt WWW HUSSMANN COM P N 0461391 B 3 1 Safe NET DISPLAY amp ALARM MODULES DESCRIPTION Safe NET Display Module LED Indicators The Safe NET Display Module shown in Figure 1 and Figure 2 is a temperature monitoring device The display module reads and displays temperature sensed by the product simulator temperature sensor mounted in the refrigerated space The display module notifies the user of alarms based on preset Figure 1 Safe NET Display Module with Top Cover alarm conditions SELECT Button Alarm Module The alarm module shown in Figure 3 is an additional feature to Safe NET The alarm module supplies power to the di
66. smann Corporation Bridgeton Missouri 63044 2483 U S A 4 9 Setup ET x Value EN amp X Value ITN K gt Value PN E Value RST EN amp y Value HT amp Value DEGR amp y Value TY Value DIFF amp X Value RL amp X Value OT y Value ET k X Value PDL X Value PRHI X Value uox gt Value ADLY E gt Value HIGH X Value LO amp x Value INPT K X Value SE amp x Value PASS Value Menu Structure SETUP Safe NET 4 10 MENUS After certain parameter changes are completed the Safe NET system must be reset to initiate operation in accordance with the modified parameter s This may be accomplished in one of two ways Either navigate to the RESET sub menu item in the SETUP menu and press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display OR cycle power to the Safe NET system Parameter changes requiring a RESET are noted accordingly in the detailed parameter descriptions The individual parameters associated modification procedures and preferred practices are discussed in detail in the following pages Presentation of the parameters 1s in sequence with the menu structure presented on th
67. splay module via an 8 wire cable The alarm module provides l UP Button DOWN Button battery back up power to the display module during loss of A C power The display module Figure 2 Safe NET Display Module with Cover Removed communicates with the alarm module via a 2 wire cable Additionally the alarm module is equipped with a beeper to provide audible Green LED notification of alarms SA OPERATION SEO ES Normal During normal operating conditions the product simulator temperature is displayed The GREEN LED on the alarm module is lighted as shown in Figure 3 Figure 3 Safe NET Alarm Module Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 3 2 DISPLAY 8 ALARM MODULES Product Temperature Alarms The display module generates an alarm if the product simulator temperature rises above the high alarm set point or drops below the low alarm set point for the preset time duration When the display module generates a high temperature alarm the RED LED on the display module is lighted Every 12 seconds PrHi is displayed for 3 seconds for the remaining time the product simulator temperature is displayed When the display module generates a low temperature alarm the RED LED on the display module is lighted Every 12 seconds PrLo is displayed for 3 seconds for the remaining time the product simulator temperature is displayed For either alarm the beeper on the alarm board beeps every
68. t integrity cannot be ensured until power is restored and the battery is replaced Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 3 3 MODIFYING ARL ARV SETTINGS The Safe NET display module stores alarm set points and alarm delay times for monitoring ARL and ARV cases The suggested default set points may be modified Use a flat narrow tool such as a small screwdriver to remove the cover of the display module IMPORTANT e Hussmann recommends against changing any parameter value other than those described herein Modification of any other parameter may result in unpredictable Safe NET operation e The user must monitor each case after altering product alarm set points and or product alarm time delays to verify proper operation Safe NET 3 4 DISPLAY 8 ALARM MODULES There are three visible buttons on the left hand side of the display board as indicated in Figure 2 on Page 1 Although labels are not clear buttons can be determined by their location The SELECT button is located near the top edge of the display board It is used to select the menus and to edit the menus The UP button is the left button of the two buttons located on the bottom lineup of the display board The DOWN is the right button of the two buttons located on the bottom lineup of the display board The UP and DOWN buttons are used to move within and between menus and to increment or decrement values Notes Th
69. tc 240 MIN Setting this parameter is done in the DEFROST menu After navigating to the DURA submenu item the display will cycle between DURA and the current setting While DURA K gt New Value the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Menu Structure DURA Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between DURA and the new value Note DURA cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 4 37 Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 4 38 MENUS TTYP The Safe NET system is capable of terminating defrost activity based on evaporator coil temperature TSEN return air RAIR discharge air DAIR time TIM or input from a termination temperature activated switch DIGI When the Safe NET system is configured to control defrost this setting determines which input parameter is used to terminate a defrost cycle The D
70. the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module a second time to allow editing of the hours value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Hussmann Corporation Bridgeton Missouri 63044 2483 U S A STAR HH MM STAR STAR HH MM Menu Structure STAR Once the desired setting is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module a third time to store the new value to NV memory The display will revert to cycling between STAR and the new value Safe NET 4 40 MENUS NDEF The NDEF parameter sets the number of defrost cycles in a 24 hour period This number works in conjunction with the STAR parameter discussed above The NDEF number of defrosts determines the number of defrosts that occur in a 24 hour period beginning with the STAR first defrost parameter The maximum number of defrosts allowed in a 24 hour period is 8 The defrost
71. the new value Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 23 PRHI Value PRHI Note Range is setpoint to setpoint 16 deg F PRHI New Value Menu Structure PRHI Note The HIGH and LOW alarm settings are limited to 16 deg F from product simulator temperature set point Setting the product simulator set point will not modify the current alarm settings They must be set independently to ensure proper alarming A product simulator temperature sensor must be installed in order to enable associated alarm functions PRHI cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 Safe NET 4 24 MENUS PRLO The PRLO parameter sets the low temperature alarm set point for the product simulator temperature This set point and associated alarm is valid for the Safe NET system when applied as a Monitoring or Control system The configurable range of the LOW alarm is control set point 16 F Setting this parameter is done in the SETUP menu After navigating to the PRLO sub menu item the display will cycle between PRLO and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the v
72. the new value TEMPS MENU The TEMPS menu is used to display the individual temperatures pressures voltages current or power factor of connected individual sensors The following list shows the order in which the values would be displayed if all possible sensors were connected However the Safe NET U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B display module allows only 10 ten of the sensors to be connected simultaneously At this time there is no known application where all 10 sensors or all available sensors would be applied The order in which the temps are displayed is dependent upon which sensing devices are installed as represented to the right Missing or non connected sensors will not appear in the designated sequence Average temperatures are available to view so long as the associated sensing devices are attached DSAV Discharge Air Average RTAV Return Air Average PDAV Product Average T LO Lowest Termination Sensor Reading ILET Evaporator Inlet OLET Evaporator Outlet TSNL Left Termination Sensor TSNC Center Termination Sensor TSNR Right Termination Sensor DSCL Discharge Air Left DSCC Discharge Air Center DSCR Discharge Air Right RETR Return Air Right RETC Return Air Center RETL Return Air Left PRDR Product Right PRDC Product Center PRDL Product Left ANTI Anti sweat Heater temp PRES LO 0 200 PSI TEMP LO 0 200PSI liquid temp PRES HI 0 500
73. tore the new value to NV memory The display will revert to cycling between CTRL and the new value M CTRL Value CTRL gt DSAV TNLO PRAV RTAV CTRL New Value lt gt Menu Structure CTRL Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 21 Note The Safe NET system must be RESET for the new setting to take effect One or more sensors of the type selected must be installed Coil temperature always uses the coldest reading when more than one coil sensor is installed All other sensors are averaged CTRL cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 DCOT This setting applies to Chill Chamber only Case models 140 140S 570g 1230 The DCOT sets a discharge air temperature low limit In Chill Chamber application the compressor is controlled to maintain a return air temperature setting Under some operating conditions this can result in a lowering of the discharge air temperature below the freezing point of the product The DCOT setting will override compressor operation in order to avoid this condition This parameter cannot be changed DCOT New Value M Menu Structure DCOT Safe NET 4 22 MENUS PD L The PD L parameter sets the alarm delay in minutes for the product temperature simulator temperature In the event
74. ttings for the case type selected Menu Structure CASE Hussmann Corporation Bridgeton Missouri 63044 2483 U S A Safe NET 4 30 MENUS CLOCK MENU This menu allows the user to set the internal Time of Day TOD clock This clock is a 24 hour clock that displays hours in the range of 00 to 23 Minutes are displayed in the range of 00 to 59 1 e 8 00 A M 08 00 and 8 00 P M 20 00 To set the time the valid PASSWORD must be entered first See the section on entering PASSWORD for instructions on how to do this Enter the CLOCK menu by pressing the CLOCK key on the Hand Held device or pressing the SELECT button on the Safe NET Display module until CLOC is displayed Once the CLOCK menu is entered the display will cycle between CLOC and the current time While the time is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to edit the time value The first press of the ENTER key or SELECT button allows editing of the minutes With the Safe NET display module flashing the minutes value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the minutes to the desired value Press the ENTER key or SELECT button to store the new minutes value and begin editing the hour value With the Safe NET display module flashing the hour value use the UP or DOWN arrow keys on the Hand Held device or t
75. ual to or greater than the ADLY setting the alarm is signaled This is true for low temperature alarms as well There is only one time delay associated with all discharge air temperature alarms Setting this parameter is done in the SETUP menu After navigating to the ADLY sub menu item the display will cycle between ADLY and the current setting While the setting is being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired setting Once the desired setting 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between ADLY and the new value Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 25 ADLY y Value ADLY 7 Omin 5 1 2 A 240 min ADLY y New Value Menu Structure ADLY Note The HIGH and LOW alarm settings are limited to 16 deg F from set point Setting the set point will not modify the current alarm settings They must be set independently to ensure proper alarming One or mor
76. ule to which Safe NET display modules or the master network are connected This setting has no effect when the Safe NET system is applied as a temperature monitoring device only or does not require the Safe NET control module or is in a non networked installation The Safe NET system has an optional component known as the control module This device is implemented when the Safe NET system 1s applied where multiple evapo rators are temperature controlled by a motor driven valve such as an EEPR a variable speed compressor or a single liquid line solenoid e g walk in cooler This application requires multiple Safe NET display modules to synchro nize their control and alarm activities and provide temperature information to a central control device The Safe NET display modules must communicate this information via a network cable to the Safe NET control module Accordingly the Safe NET control module must be assigned a unique address in order to send and receive alarm and control messages Setting this parameter is done in the SETUP menu After navigating to the CNTN sub menu item the display will cycle between CNTN and the current set point While the set point is being displayed press ENTER on the Hand Held device or press the SELECT Hussmann Corporation Bridgeton Missouri 63044 2483 U S A 4 13 button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the
77. ure a dl a 4 23 PREO Vossii cop RARE RADEON 4 24 ADV Viral exp INQUE 4 25 HIGH deepen uve Genesee Bes 4 26 REVISION HISTORY ie D 4 27 INPE e us eR ee dS a pate NOCERE 4 28 RevisionB July 2008 CASE vi esse bos Use ate a PN 4 29 Version 9 03 Software updates Clock Menu airis 4 30 Detrost Menus dai edes b hs 4 31 DIV R o Raid 4 31 INDC qe a AS 4 33 LOPD a aeui 4 34 Revision A November 2005 STARP TTT 4 34 ECTE A a A e e ad 4 35 Original Version January 2005 US sa a ies ae pad ea eee EXE 4 36 DURA su tuse x ex paste asd odo 4 37 pe A guise 4 38 STAR aT db o ad D 4 38 NDEP sio AAA OK RS 4 40 Temperatures Menu 4 40 Valve Menu 2 5 oS p AAA 4 42 CLAV 5 sos tbe Ew rta 4 43 DSVR Cosas Ud eese ita 4 43 A idem Re P Ed 4 43 ESVE ipana Ub e oo adita 4 43 CHVR sirstacos biie da 4 43 COR quer fel ro a e debas dao Le 4 44 VO es me dao E dedo 228 oe E 4 44 NORE e cepe vx ED Oi ora 4 45 CLOSE ta bid ata 4 45 P N 0461391 B HUSSMANN CORPORATION Bridgeton MO 63044 2483 U S A P N 0461391 B 1 1 INTRODUCTION WHAT IS Safe NET Safe NET is an advanced electronic system for monitoring or controlling case temperatures in one or more locations It will help you ensure continuous reliable refrigeration and safer fresher foods 24 hours a day Power Supply Transformer The Safe NET system is composed of sensors harnesses control modules display modules relay modules and a Display
78. value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired address Once the desired address 1s displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between CNTN and the new value Note The Safe NET system must be RESET for the new value to take effect Factory default is NONE CNTN cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 CNIN oy Value CNIN l 5 E 6 7 lA 248 CNTN KO New Value Menu Structure CNTN Safe NET 4 14 MENUS DSPN The DSPN parameter sets the network address of the Safe NET display module When the Safe NET system applied does not require the Safe NET control module or is in a non networked installation this setting has no effect When the Safe NET display module is applied in a networked system a unique address is required to identify the Safe NET display module on the network This allows multiple Safe NET display modules to synchronize their control and alarm activities and provide temperature information to a central control device The Safe NET display modules must communicate this information via a network cable to the Safe NET
79. y the current alarm settings They must be set independently to ensure proper alarming A product simulator temperature sensor must be installed in order to enable associated alarm functions PD L cannot be changed if case model type is a Chill Chamber 140 140S 570g 1230 U S amp Canada 1 800 922 1919 Mexico 1 800 522 1900 e WWW HUSSMANN COM P N 0461391_B PRHI The PRHI parameter sets the high temperature alarm set point for the product simulator temperature This set point and associated alarm is valid for the Safe NET system when applied as a Monitoring or Control system The configurable range of the HIGH alarm is control set point 16 F Setting this parameter is done in the SETUP menu After navigating to the PRHI sub menu item the display will cycle between PRHI and the current set point While the set point 1s being displayed press ENTER on the Hand Held device or press the SELECT button on the Safe NET display module to allow editing of the value When the Safe NET display module begins flashing the value use the UP or DOWN arrow keys on the Hand Held device or the UP DOWN buttons on the Safe NET display module to increment or decrement the value to the desired set point Once the desired set point is displayed press the ENTER key on the Hand Held device or the SELECT button on the Safe NET display module to store the new value to NV memory The display will revert to cycling between PRHI and

0461391_B Safe-NET - Whaley Food Service

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