therMOstat 500 - LAUDA-Noah
Contents
1. Description Specification Flow Rate gt 1 0 GPM 3 8 Ipm minimum Temperature 25 C 50 to 80 psi 30 psi min delta Waat Pressure 340 to 550 kPa 210 kPa min delta Filtering 5 micron particle filtered water recommended Stainless Steel Swagelok Tube Fitting Compression Fittings fitting 3 8 in Tube OD Adapter to 4 barb fitting available Facility Requirements Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC MOUNTING therMOstat 500 Orientation Module must be upright Location Install in a location where the fittings and electrical connections are accessible Clearance Minimum 4 surrounding module for water and electrical connections therMOstat 500 Dimensions Below are the physical dimensions for the therMOstat 500 with the handles folded down see Figure 1 32 1 Note The figure below shows the height dimension with the handles down The width dimension shows the handles down raafaus L 224210 heht Figure 2 1 Dimensions of the therMOstat 500 Facility Requirements Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Chapter 3 Bubbler and Fill Procedure Bubbler Installation The therMOstat is configured from the factory in an open bath configuration Sizing kits are available to accommodate various sizes including 2 to 6 6 inch diameter and up to a triple 2 2 inch diameter bubbler configuration Refer to th2. NOAH PRECISION LLC Model therMOstat 500 therMOstat 500 Manual Rev 1 July 14 NOAH PRECISION LLC A message to our customers Originally founded in 1985 our company has grown into a recognized leader in providing temperature control systems to the global semiconductor industry Today Noah Precision LLC is a privately held employee owned and managed company We are guided in our belief that prosperity in this competitive industry stems from providing customers with highly engineered new products and world class customer service We know that great products are often the result of great customer feedback and the application of innovative technology We strive to create value for our customers through a process that lets the customer influence our goals objectives product developments and business practices We embrace personal accountability and accept responsibility for prudent risk taking We encourage personal values which guide us to consistently meet the commitments we make and we endeavor to treat those with whom we interact with respect as we wish to be treated ourselves Sincerely Ds Clare Peter Adams President Noah Precision LLC Manual Rev 1 July 14 E noan precision Lic COPYRIGHT This manual and the information contained herein is the proprietary property of Noah Precision LLC No part of this manual may be reproduced or copied without the express written permission o
3. To calibrate the RTD to a reference temperature record the difference between the controller s reading and a reference sensor s reading If the controller reading is lower than the reference sensor s enter the difference as a positive value into the Calibration Offset parameter using the Up and Down arrow keys If the controller reading is higher than the reference sensor s enter the difference as a negative value RS 485 Address This denotes the address of the system when communicating in RS 485 mode If this setting is changed the unit must undergo a full power cycle for this change to come into effect Operation Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Analog Calibration Offset Similar to the calibration offset this calibrates the voltage signal coming from the analog communication port Heat Proportional Band Sets the PID proportional band for the heat output Cool Proportional Band Sets the PID proportional band for the cool output Time Integral Sets the PID integral for the heat and cool outputs Time Derivative Sets the PID derivative time for the heat and cool outputs Dead Band Sets the offset to the proportional band Autotune Request Start an Autotune to calculate PID values if the default settings or manual tuning results in poor temperature control For the majority of applications the default PID settings work well and can easily be adjusted manually if temperat
4. Calibrating the Analog Voltage Output Signal The voltage output signal represents the chiller bath using this scale 10 mV C For example if the bath temperature is 17 0C the output voltage will be 0 170 volts If the voltage value or temperature reading of the host tool does not correspond exactly to the chiller temperature value the voltage signal can be offset to match by following the procedure below 1 Observe the temperature of the chiller bath on the upper line of the controller display see Table 4 Watlow Controller description When it is stable go to step 2 2 Access the o CA3 screen from the home menu by pressing the Advance key 3 Using the UP and DOWN keys the offset can be changed Figure 5 1 Calibration Offset Figure 5 1 Calibration Offset shows a calibration offset value of 0 00 C Use the UP or DOWN arrow keys to enter a value so that the voltage output or tool temperature conversion reading corresponds to the bath temperature 23 Operation Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC For example If the bath temperature is 17 00 C but the output voltage value is 0 174 V temperature conversion 17 4 C enter a calibration value of 0 40 C so that the output voltage will match the bath temperature reading If the voltage value is lower than desired then enter a positive value equal to the difference between the actual temperature and temperature conversion valu
5. and the overshoot value is undesirable increase the derivative value Go back to the original setpoint and try the new value if necessary If this value is increased too much the approach to the setpoint may be too sluggish Repeat the adjustment as necessary until the temperature approaches setpoint without sluggishness or excessive overshoot SETTING DEVICENET ADDRESS AND BAUD RATE DeviceNet setup instructions are available upon request CONFIGURING 485 MODBUS ADDRESSING Address can be changed by accessing the Ad 1 setting on the home screen of the controller Using the UP and DOWN keys this number can be changed from the default 1 to the desired address Press the green Advance key button below the key on the controller until the home screen is displayed Unit must be shut down and all status indicator lights must fully turned off after changing the address Once the unit is powered on the address change will be in effect nappe 2 Operation Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC ANALOG VOLTAGE OUTPUT FUNCTION Signal Interface The signal connector is a 9 pin D sub female It is located in the rear of the unit circled in red in the picture below Pin Out Table 6 Pin out description Pin Number Signal Description Signal Type 1 Chiller Bath Temperature Analog voltage output 10 mV C 3 Chiller Bath Temperature Return Signal Ground 0 V reference
6. the process loop Immediately after filling turn the system on with the rocker switch on the front of the unit Place the unit in RUN mode for 10 seconds Then place the unit in IDLE mode for 10 seconds Repeat steps 2 and 3 5 times yee System is now ready for constant operation J s Bubbler and Fill Procedure Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Drain Procedure 1 Turn the therMOstat off Raise the therMOstat above the fill canister Depressurize the fill canister by opening the vent valve turn clockwise until it latches open Connect the fill tube to the drain coupling on the therMOstat naw p Press the fill canister trigger to drain the fluid into the canister Bubbler and Fill Procedure Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Chapter 4 Cable Connections TERM RS 232 RS 485 i ee a f Figure 4 1 Communications plate sans DeviceNet 1 RS 485 termination switch Up is on Down is off 2 RS 232 communication port 3 RS 485 communication port 4 Analog communication 5 Noah Precision service port Figure 4 2 Communications plate with DeviceNet Cable Connections Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Operation Table 3 Control Panel Indicators LED Name Color Description System OK Green Active during normal operatio
7. ER CABLE The therMOstat 500 has a C13 IEC filtered power inlet on the back of the unit This can connect to a various amount of connectors such as C20 plug for Veeco systems the custom Aixtron connector or even an American NEMA 5 15 plug Figure 1 2 Veeco C13 to C20 plug FILL CANISTER A manually pressurized fill canister is available for filling the therMOstat module with a cooling medium of choice See Figure 1 3 E von precision oF Figure 1 3 Fill Canister for the therMOstat product line EE Components List Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Chapter 2 Facility Requirements GENERAL SPECIFICATIONS Table 1 General Specifications for the therMOstat Description Specification AC Supply Power Maximum 1000 Watts Power Line Frequency 50 60 Hz Line Voltage 90 250 VAC auto ranging Tnlet Socket According to IEC EN 60320 1 C 131i Power Cord Veeco p n 275 3606 Aixtron p n 275 3612 Cooling Capacity 500 watts 20 C Heating Capacity 1000 watts 20 C Temperature Range 0 C to 450 C Temperature Tolerance 40 1 C Comm Interface DeviceNet RS 485 RS 232 Analog Chiller Dimensions I WxIr Lx a T Distilled water Fluid Type 2 Glycol water mixture 3 Perfluorinated fluid requires TMO 500 F MTBF Target 30 000 hrs PCW PROCESS COOLING WATER Table 2 PCW Process Cooling Water Specifications
8. Plate mounted to C Plate Second picture is flange mounted for 6 6 Bubbler Figure 4 1 Communiations plate sans DeviceNet Figure 4 2 Communications plate with DeviceNet Figure 5 1 Calibration Offset Components List Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC List of Tables Table 1 General Specifications for the therMOstat a Table 2 PCW Process Cooling Water Specifications i Table 3 Control Panel Indicators 8 Table 4 Watlow Controller descriptio 8 Table 5 Watlow Controller Operation Parameters 0 Table 6 Pin out descriptioi 3 Table 7 DeviceNet Module Status MS light table 4 Table 8 DeviceNet Network Status NS light table 5 Table 9 Troubleshooting Guide 7 Table 10 Customer Support locations 8 el Components List Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Chapter 1 Components List THERMOSTAT 500 The therMOstat 500 is a thermoelectric TE based sealed chiller which provides temperature control for a bubbler that is installed within the module The module is space efficient water cooled and has PID temperature control An internal pump circulates a cooling medium within the module for optimum heat transfer and temperature control Fluid level indicators lt Power Switch Fill and Drain Port Figure 1 1 Components List Noah Precision LLC Manual Rev 1 July 14 G noan precision Lic POW
9. d to in writing The warranty period is defined in the purchase order and begins on the date the goods are shipped from Noah Precision In all cases the seller has sole responsibility for determining the cause and nature of the failure and the seller s determination with regard thereto shall be final The Noah Precision Warranty Statement may be superseded by a service agreement entered into between Noah Precision and the buyer EE Troubleshooting Noah Precision LLC Manual Rev 1 July 14
10. e When done with calibration press the so key repeatedly until the home page is displayed The two toggle switches Mode Selector should be in the DOWN position for DeviceNet operation The UP position is for RS485 The baud rate selection BR should match the baud rate of the network or can be set for AUTO Detect as noted on silkscreen just below the switch The baud rate is selectable at 125Kb 00 250Kb 01 500Kb 10 or Auto Detect 11 The MACID needs to be set for the specific channel ID of this specific TMO500 in the network The MACID can go from 0 to 63 DeviceNet Status is determined by the two LEDs labeled NS Node Status and MS Module Status These are bi color LEDs that indicate a non error condition by GREEN illumination and error by RED illumination DeviceNet Scanner Status Error Codes The bicolor GREEN RED Module Status MS indicator displays device status It indicates whether the device has power and is functioning properly Table 7 DeviceNet Module Status MS light table LED INDICAT Needed Of There is no power applied to the device Apply power Green The device is operating in normal NIA condition Flashing Green The device needs configuring Configure the device Flashing Red There is an invalid configuration Verify dip switch settings Check configuration setup The Network Status NS indicator is a bicolor GREEN RED LED The following table provides troubleshooting in
11. e Sizing Kits section of this chapter for sizing kit installation instructions Contact Noah Precision for other sizing kit opportunities TEM NO DESCRIPTION g Bubbler Sang Kit Clamp anver Bubbler O Ring Sizing Flange or Adapier plate Ring for Sizing Flange or Adapter Plate Figure 3 1 Sizing kit Diagram Bubbler and Fill Procedure Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Follow the procedure below for basic bubbler and sizing kit installation 1 Loosen the bubbler clamp band by using a flat heat or socket head driver to allow for bubbler installation see Figure 3 2 Insert bubbler into the therMOstat 500 chamber Adjust bubbler for proper height location The o ring may temporarily hold it in place Tighten the bubbler clamp band to secure the bubbler into its final placement BEN Figure 3 2 A Sizing kit clamp band hole installed on B Adapter Plate mounted to C Top Plate Second picture is flange mounted for 6 6 Bubbler Bubbler Removal Follow the procedure below for basic bubbler remova Note If moving to a larger sizing kit or decommissioning follow Drain Procedure on page 16 before continuing 1 Turn off the therMOstat 500 2 Assure gas lines are disconnected from the bubbler 3 Loosen the bubbler clamp band by using a flat heat or socket head driver to allow for bubbler removal see Figure 3 2 4 Rem
12. epared to give the model number and serial number of the unit as well as the reason for the proposed return This consultation call allows Noah Precision Customer Support to determine whether the problem can be corrected in the field or if the unit must be returned Such technical consultation is always free of charge Ifa unit is returned without first getting authorization from Noah Precision Customer Support and that unit is found to be functional there is a re test and calibration fee plus shipping charges To ensure years of dependable service Noah Precision products are thoroughly tested and designed to be among the most reliable and highest quality systems available worldwide EE Troubleshooting Noah Precision LLC Manual Rev 1 July 14 G noan precision Lic WARRANTY Noah Precision LLC products are warranted to be free from failures due to defects in material and workmanship after they are shipped from the factory please see warranty statement below for details for the period of time defined in the purchase order To claim shipping or handling damage inspect the delivered goods and report such damage to Noah Precision within 30 days of receipt of the goods Please note that failing to report any damage within this period is the same as acknowledging that the goods were received undamaged For a warranty claim to be valid it must Be made within the applicable warranty period Include the product serial n
13. f Noah Precision LLC Any unauthorized use of this manual or its contents is strictly prohibited Copyright 2004 2007 Noah Precision LLC All Rights Reserved DISCLAIMER AND LIMITATION OF LIABILITY The information contained in this manual is subject to change by Noah Precision LLC without ptior notice Noah Precision LLC makes no warranty of any kind whatsoever either expressed or implied with respect to the information contained herein Noah Precision LLC shall not be liable in damages of whatever kind as a result of the reliance on or use of the information contained herein PRODUCT USAGE STATEMENT A pancer Read this entire manual and all other publications pertaining to the work to be performed before installing operating or maintaining this equipment Practice all plant and product safety instructions and precautions Failure to follow instructions can cause personal injury and or property damage If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired All personnel who work with or who are exposed to this equipment must take precautions to protect themselves against serious or possibly fatal bodily injury Noah Precision LLC provides information on its products and associated hazards but it assumes no responsibility for the after sale operation of the equipment or the safety practices of the owner or user This equipment produces or uses potentia
14. formation about communication links BE Operation Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Table 8 DeviceNet Network Status NS light table Me ns ion Needed Off There is no power applied to the device Apply power Green The device is operating in normal NIA condition Flashing Green The device needs configuring Configure the device Red Communication Channel Failure Verify dip switch settings Check configuration setup Flashing Red There is an invalid configuration Verify dip switch settings Check configuration setup Chapter 6 Maintenance The TMO 500 chiller does not require daily maintenance if used in conjunction with the correct sizing kit However it is necessary to prevent buildup of any minerals salts or algae within the system s tank These contaminants can cause issues in the vein of early component failures improper alarms or even complete loss of temperature control Tt is therefore recommended that every month or every bubbler change at minimum the water is drained completely from the system and refilled with fresh distilled deionized water for operation No other maintenance is required if this schedule is adhered to Maintenance Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Chapter 7 Troubleshooting TYPES OF ALARMS Soft Alarm A soft alarm is informative only and does not affect the temperat
15. lly lethal high voltage high current electrical power NEVER DEFEAT INTERLOCKS OR GROUNDS Components List Noah Precision LLC Manual Rev 1 July 14 E noan precision Lic TRADEMARKS amp PATENTS logo is a registered trademark of Noah Precision LLC Noah Precision is a registered trademark of Noah Precision LLC Point of Use is a trademark of Noah Precision LLC therMOstat 500 patent 8 118 939 CUSTOMER FEEDBACK Noah Precision s technical writing staff has carefully developed this manual using research based document design principles However improvement is ongoing and the writing staff welcomes and appreciates customer feedback Please send any comments on the content organization or format of this user manual to hr noahprecision com To order a manual please contact Noah Precision see Customer Support Locations on page 6 3 for contact information aay Components List Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Contents Chapter 1 Components List thermostat 500 Power cable Fill Canister Chapter 2 Facility Requirements General specifications PCW Process Cooling Water Mounting therMOstat 500 therMOstat 500 Dimensions Chapter 3 Bubbler and Fill Procedure Bubbler Installation Bubbler Removal Fill Prime and Drain Procedure Fill Procedure Pump Priming Proced
16. n STATUS Alarm Red Active when an alarm condition is met STEM OK Heat Yellow Active when TE array is heating process water in bath Tool Blue Active when TE array is cooling process water in bath Run Green Active when bath temperature is being actively controlled Tale Yellow Active when bath temperature is not being actively controlled Table 4 Watlow Controller description WATLOW __EZ ZONE Description Functionality Upper Display In the Operations Menu displays the process value otherwise displays the value of the parameter in the lower display Output Activity Number lights indicate activity of outputs 1 and 2 Communications Flashes when another device is communicating Activity with this controller Upand Down In the Operations Menu adjusts the set point in Keys the lower display In other pages changes the upper display to a higher or lower value or changes a parameter selection Infinity Key Clears and silences alarms press to back up one level or press and hold for two seconds to return to the Operations Menu Lower Display Indicates the set point or output power value during operation or the parameter whose value appears in the upper display Operation Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC OPERATIONAL STATES Upon power on the system operates in Idle mode until the Run button is p
17. ove the bubbler HE Bubbler and Fill Procedure Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Fill Prime and Drain Procedure Fill Procedure The required amount of fluid needed to fill the therMOstat will vary depending on the size of the bubbler and sizing kit installed The fluid level in the therMOstat 500 should always remain between the Low and Full indicators on the front of the unit see Figure 1 31 1 See the following steps for fill capacity notification via the therMOstat Noah sells a fill canister with a capacity just over 3 gallons 11 liters 1 Verify that the therMOstat is off and the bubbler is inserted Fill the fill canister to the 10 liter mark with the fluid medium of choice Close the vent valve Do not overfill the fill canister Connect fill hose to the fill drain coupling on front of the therMOstat Pressurize canister with hand pump Press the canister trigger to pump the mixture into the therMOstat module Nowe wD Continue to slowly pump fluid into the therMOstat until the fluid almost reaches the Full level as seen on the front of therMOstat Release the fill canister trigger and disconnect the fill hose 9 While unit is in operation fluid level will drop Ensure that fluid level is filled sufficiently such that fluid is visible while in operation Pump Priming Procedure Once the unit has been filled the pump must be manually primed to purge all remaining air from
18. ressed Idle mode Pump and TE are disabled but the controller is active and monitors temperature and alarms The system is put into the Idle state manually through a switch or goes into it during a hard alarm condition Active mode Pump and TE supplies are enabled and the controller actively maintains temperature setpoint FRONT PANEL There are three functional items on the front panel of the therMOstat 500 see Figure 1 2 these include Power Switch toggles the system on off Fill Port Drains or fills the bubbler bath e Fluid Level Indicates if bubbler bath fluid level is within acceptable range SYSTEM START UP Step by step instructions for normal operation 1 Turn the Power switch on Control panel and Watlow controller should turn on in idle state 2 Press the Run button on the control panel 3 Program the set point temperature by using the Up and Down arrow keys on the controller The set point temperature is shown as the lower number in the controller display 4 Press the Run button to enable temperature control The process fluid temperature is indicated by the upper number in the controller display 5 If there are no alarm conditions the green System On LED will light up 6 1f there is an alarm condition the red Alarm LED will light up Operation Noah Precision LLC Manual Rev 1 July 14 G noan precision Lic CONTROLLER SETUP OPERATION The controller is set up from the factor
19. site at hutp www noahprecision com Troubleshooting Noah Precision LLC Manual Rev 1 July 14 LLC NOAH PRECISION LLC NOAH PRECISION CUSTOMER SUPPORT Please contact one of the following offices in Table 10 for technical support Note When calling Noah Precision Customer Support make sure to have the unit serial number and part number These numbers are available on the individual unit labels Table 10 Customer Support locations Office Contact Noah Precision LLC Phone 1 360 993 1395 2501 SE Columbia Way Fax 1 360 993 1399 Suite 140 Email sales noahprecision com Vancouver WA 98661 service noahprecision com Web http www noahprecision com China Challenge Technology Phone 86 21 6847 1388 Shanghai Fax 8621 6847 1339 Taiwan Challentech International Phone 88 63 5536525 Corp Fax 88 63 5536515 RETURNING UNITS FOR REPAIR Detailed information regarding returns repairs and warranty can be found at http www noahprecision com rma information html An RMA Request Form can be completed at http www noahprecision com support form RMA php BEFORE returning any product for repair or adjustment follow all troubleshooting procedures If after following these procedures the problem still exists or if the procedure instruction advises contacting Noah Precision Customer Support call and discuss the problem with a representative or visit the links listed above Be pr
20. umber and a full description of the circumstances giving rise to the claim Have been assigned return material authorization number see below by Noah Precision Customer Support All warranty work will be performed at an authorized Noah Precision service center see list of contacts at the beginning of this chapter You are responsible for obtaining authorization to return any defective units prepaying the freight costs and ensuring that the units are returned to an authorized Noah Precision service center Warranty Statement The seller makes no express or implied warranty that the goods are merchantable or fit for any particular purpose except as specifically stated in printed Noah Precision specifications The sole responsibility of the Seller shall be that it will manufacture the goods in accordance with its published specifications and that the goods will be free from defects in material and workmanship The seller s liability for breach of an expressed warranty shall exist only if the goods are installed started in operation and tested in conformity with the seller s published instructions The seller expressly excludes any warranty whatsoever concerning goods that have been subject to misuse negligence or accident or that have been altered or repaired by anyone other than the seller or the seller s duly authorized agent This warranty is expressly made in lieu of any and all other warranties express or implied unless otherwise agree
21. ur Drain Procedure Chapter 4 Cable Connections Chapter 5 Operation Operational States Idle mode Active mode Front Panel System Start Up Step by step instructions for normal operation Controller Setup Operatior Parameter Description Manual Tuning Procedure for the Controller Setting DeviceNet Address and Baud Rat 5 Components List Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC Configuring 485 Modbus addressing Analog Voltage Output Function Signal interface Pin Out Calibrating the Analog Voltage Output Signal DeviceNet Operation DeviceNet Scanner Status Error Codes Chapter 6 Maintenance Chapter 7 Troubleshooting Types of Alarms Soft Alarm Hard Alarm Troubleshooting Troubleshooting Guide Noah Precision World Wide Web Site Noah Precision Customer Support Returning Units for Repair Warranty Warranty Statement el Components List Noah Precision LLC Manual Rev 1 July 14 S NOAH PRECISION LLC List of Figures Figure 1 1 therMOstat 500 Front Panel Figure 1 2 Veeco C13 to C20 plug Figure 1 3 Fill Canister for the therMOstat chiller line Figure 2 1 Dimensions of the therMOstat 500 Figure 3 1 Sizing kit Diagram Figure 3 2 A Sizing kit clamp band hole installed on B Adapter
22. ure control capability of the system A soft alarm condition occurs when the alarm light is illuminated but remains in Run mode This will happen when the system is running low on fluid The system should be refilled as soon as possible A soft alarm is not latching and will clear itself once the alarm condition is taken care of Soft alarm presence is dependent on TMO revision Hard Alarm A hard alarm will put the system into the Idle state by disabling the pump and TE A hard alarm condition occurs when the buzzer emits a tone and the therMOstat switches into Idle mode Additionally this type of alarm will cause the controller to signal the host tool through RS 485 RS 232 and DeviceNet that this condition is active A hard alarm is latching After taking care of the alarm condition the Run button will need to be pressed to reset the system TROUBLESHOOTING This section discusses the following topics to help troubleshoot any problems that might occur when operating either unit A troubleshooting guide is provided in Table 9 If following these procedures does not solve the problem do not hesitate to call Noah Precision Customer Support displayed later on in this chapter Troubleshooting Guide HE Troubleshooting Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION Table 9 Troubleshooting Guide Symptom Probable Cause Corrective action Hard alarm system 1 Liquid Level is too lo
23. ure control needs to be optimized see manual tuning procedure on the next page Heat power Heat output level Cool power Cool output level Operation Noah Precision LLC Manual Rev 1 July 14 NOAH PRECISION LLC MANUAL TUNING PROCEDURE FOR THE CONTROLLER If the default PID parameters do not effectively maintain setpoint the PID values can be adjusted to compensate There are two sets of PID values one for heating and one for cooling The proportional band settings are independently adjustable for heat and cool but the same values for time integral and derivative are used for both sets The PID parameters are accessed through the Operations page see Table 5 and adjusted using the Up and Down arrow keys Manual tune controller procedure 1 Enter a temperature setpoint 2 Monitor the temperature response as setpoint is reached 3 If the temperature fluctuates around the setpoint increase the Heat and or Cool proportional bands until the temperature stabilizes 4 When the temperature has stabilized it may be at a point other than the setpoint The difference between the setpoint and temperature can be eliminated with integral control Decrease the integral setting until the temperature reaches setpoint If the temperature becomes unstable increase the integral value until it becomes stable 5 Change the setpoint by 15 C and monitor the temperature approach to setpoint If the temperature overshoots the setpoint
24. w for Add fluid until liquid level goes into idle mode operation indicator is within Low and 2 Tank or PCW temperature Full bounds exceeds spec 2 Check that PCW flowrate 3 Pump is inoperative and temperature is within 4 Power Supply failure specifications 3 Replace or troubleshoot pump 4 Replace Power Supply Soft Alarm Alarm T Liquid level is Tow T Add fluid until liquid level light is active but indicator is within Low system remains in run and Full bounds mode System won t reach T System in Idle mode T Switch to Active mode temperature setpoint 2 PID parameters are not 2 Manually tune PID properly tuned for the parameters process 3 Repair technician to 3 _TE array is inoperative preform inspection RS 485 communication 1 Last module in RS 485 T Flip communication is intermittent chain is not terminated termination toggle to the correctly on position on the last chiller in the communication bus All other modules should have termination off Unit does not power on 1 AC Power source doesnot 1 Check that power meets when power switch is meet specification requirements toggled to on 2 Check power plug 2 Check power cable connection between connection therMOstat 500 and 3 Replace fuse located in the cabinet fuse drawer on the power 3 _ Fuse is blown plug see Figure 4 1 Noah Precision World Wide Web Site For additional product information consult Noah Precision s World Wide Web
25. y with the parameter values listed in Table 5 It may become necessary to change some of these values in order to optimize temperature control Press the Advance button to enter the Operations page and scroll through the parameters A parameter name will appear on the lower display and its setting or value will appear in the upper display Use the Up and Down arrow keys to change a parameter setting After changing a setting continue to scroll through the other parameters using the Advance button or press the Infinity button to retum to the home page at any time The home page shows the actual temperature reading and the setpoint Table 5 Watlow Controller Operation Parameters Display Parameter Name Default Setting Range CAI Calibration Offset 00 1110 55 to 5555 00 C Ad RS 485 Address T 1 247 oCA3 Analog Calibration Offset 0 0 1110 55 to 5555 00 C h Pbl Heat Proportional Band 2 8 1110 55 to 5555 00 C CPhI Cool Proportional Band 1 4 1110 55 to 5555 00 C uT Time Integral 240 1 to 9999 sec per repeat tal Time Derivative 40 1 to 9999 sec dbi Dead Band 0 00 556 to 556 C AUt Autotune Request no No or Yes bPri Heat Power Tnfo only 0 100 Pri Cool Power Tafo only 0 100 Parameter Descriptions Calibration Offset This is used to program in a temperature offset value to the controller s RTD temperature reading shown in the upper display of the controller screen
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