Edwards Polycold Cryochiller Service And Maintenance Manual
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Edwards Polycold Cryochiller Service And Maintenance Manual

Edwards Polycold Cryochiller Service And Maintenance Manual

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185303 Revision E

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Summary of Contents for Edwards Polycold Cryochiller

  • Page 1 edwardsvacuum.com ® Polycold Cryochiller Service and Maintenance Manual 185303 Revision E...

  • Page 2: Copyright Notice

    Copyright notice ©Edwards Limited 2020. All rights reserved. Trademark credit Edwards and the Edwards logo are trademarks of Edwards Limited, Innovation Drive, Burgess Hill, West Sussex RH15 9TW. Disclaimer The content of this manual may change from time to time without notice. We accept no liability for any errors that may appear in this manual nor do we make any expressed or implied warranties regarding the content.

  • Page 3: Table Of Contents

    Polycold Cryochiller Versions ........
  • Page 4 ® Contents Polycold Cryochiller Service and Maintenance Manual Theory of Operation ............3-2 Refrigeration Process.
  • Page 5 ® Polycold Cryochiller Contents Service and Maintenance Manual Checksum Calculation..........5-4 Example of Interface Usage: .
  • Page 6 ® Contents Polycold Cryochiller Service and Maintenance Manual BUFFER_PULSE_DELAY Buffer Pulse Delay Value ......5-34 BUFFER_RECOVERY Buffer Recovery Value ......5-35 WARM_CTL_TEMP Rapid BP Check - Stack Warmer Control Temperature .
  • Page 7 Appendix A: Contact Edwards ........
  • Page 8 ® Contents Polycold Cryochiller Service and Maintenance Manual This Page Intentionally Left Blank viii 185303 Revision E...

  • Page 9: Using This Manual

    Polycold Cryochiller unless you have read and understand the information in the Safety chapter of this manual. The Polycold Cryochiller is intended for use by industrial customers and should be serviced only by Edwards or Edwards trained representatives. The manuals and related materials are provided in English at no charge and are intended for use by experienced technicians.
  • Page 10 ® Introduction Polycold Cryochiller Using this Manual Service and Maintenance Manual This Page Intentionally Left Blank 185303 Revision E...

  • Page 11: Safety

    Read and understand each procedure before performing it. If additional safety related upgrades or newly identified hazards associated with the Polycold Cryochiller are identified, Edwards Vacuum Technical Support notifies the owner of record with a Technical Support Bulletin (TSB). Explanation of Hazard Alerts This manual and this product use industry standard hazard alerts to notify the user of personal or equipment safety hazards.

  • Page 12: Signal Words And Color

    A note does not use icons. The following is an example of a Note. NOTE: Save all shipping materials for future use. If the Polycold Cryochiller is shipped, the original shipping crate must be used.

  • Page 13: General Safety Guidelines

    Do not operate the unit without all guards and safety devices in place. Do not install or operate the Polycold Cryochiller if it has been dropped, damaged, or is malfunctioning. Do not use the Polycold Cryochiller for any purpose other than as a Cryochiller or damage to the Polycold Cryochiller or the equipment to which it is connected may occur.

  • Page 14: Safety Labels And Safety Label Identification

    Do not change or remove the safety labels or equipment identification labels. Label Identification and Location Table 2-1 lists the labels that are affixed to the Polycold Cryochiller. These labels alert personnel to hazards on or within the product and provide information about the product. Figure 2-2 shows the location of each label.
  • Page 15 Cryochiller Safety Service and Maintenance Manual Safety Labels and Safety Label Identification Table 2-1: Labels Used on the Polycold Cryochiller Hazard: Tip (On units with Caster option installed) Part Number: 184193 Qty: 2 Location: Front and back lower panels. Only on units...
  • Page 16 Polycold Cryochiller Safety Labels and Safety Label Identification Service and Maintenance Manual Table 2-1: Labels Used on the Polycold Cryochiller Name Plate Label Part Number: 407168-00 (left or top section) Qty: 1 (2 label set) Location: Inside on lower left frame of compressor area Contains part number, serial number, and specification information.
  • Page 17 Cryochiller Safety Service and Maintenance Manual Safety Labels and Safety Label Identification Table 2-1: Labels Used on the Polycold Cryochiller Name Plate Label Part Number: 407168-00 (right or bottom section) Qty: 1 (2 label set) Location: Inside on lower left frame of compressor area...
  • Page 18 ® Safety Polycold Cryochiller Safety Labels and Safety Label Identification Service and Maintenance Manual 407114-00 407110-00 407112-00 407168 179924 184193 407114-00 Figure 2-2: Locations of Labels on the front side of the MaxCool 185303 Revision E...
  • Page 19 ® Polycold Cryochiller Safety Service and Maintenance Manual Safety Labels and Safety Label Identification 184193 407114-00 Figure 2-3: Locations of Labels on the back side of the MaxCool 185303 Revision E...

  • Page 20: Safety And Operational Interlocks

    Service and Maintenance Manual Safety and Operational Interlocks Safety interlocks protect personal safety. Operational interlocks protect the Polycold Cryochiller. Additional interlocks may be added to the Polycold Cryochiller by the user. The Polycold Cryochiller contains the interlocks listed in Table 2-2...

  • Page 21: Lockout/Tagout

    A slide bar that is attached to the high voltage box cover is provided as the Lockout/Tagout device. When the high voltage box cover is removed, the Lockout/Tagout device is also removed, and Lockout/Tagout procedures must be performed on the input power to the Polycold Cryochiller. To use the Lockout/Tagout device: Turn off the main circuit breaker.

  • Page 22: Mechanical Hazards

    Service and Maintenance Manual Mechanical Hazards Heavy Object The Polycold Cryochiller weighs a minimum of 533 kg (1175 lb) up to a maximum of 544 kg (1200 lb).  Failure to take the proper precautions before moving this unit could result in personal injury.

  • Page 23: Electrical Hazards

    Strength of lift device must be greater than 4 times weight of unit being lifted. Electrical Hazards The Edwards Vacuum Polycold Systems Polycold Cryochiller is a hazardous voltage device. It requires a user installed slow blow circuit breaker that meets, or exceeds, the minimum SCCR rating specified by SEMI S2.

  • Page 24: Thermal Hazards

    Polycold Cryochiller and troubleshoot electrical problems. Thermal Hazards The condenser and compressor inside the Polycold Cryochiller present thermal hazards. Extreme Temperature Hazard Contact with hot or cold surfaces can cause death or serious injury. from burns or frost bite.

  • Page 25: Chemical Hazards

    Do not attempt to move or position the refrigerant line. Chemical Hazards The Polycold Cryochiller is supplied with two Overpressure Relief Valves. In the unlikely event that the relief valves release refrigerant gas, the gas must vent to atmosphere in a well vented area that meets the minimum room size requirements as specified in ASHRAE-15 and EN-378.

  • Page 26: High Pressure Gas Hazard

    Follow safety guidelines for cleaning with high pressure gas as specified by the facility. Fire and Explosion Hazard The Polycold Cryochiller does not have any direct fire or explosion hazard. Fire Hazard Cleaning fluids such as isopropyl alcohol may cause fire if used on hot parts.

  • Page 27: Environmental Information

    The vacuum chamber must have a pressure-relief valve to avoid an over-pressure condition. Environmental Information NOTICE The Polycold Cryochiller contains fluorinated green house gases covered by the Kyoto Protocol. Refrigerant Gas Recycling and Disposal Refrigerant Gas A qualified refrigeration technician is required to remove the refrigerant from the Polycold Cryochiller.

  • Page 28: Material Safety Data Sheets - Sds

    Service and Maintenance Manual Material Safety Data Sheets - SDS The Polycold Cryochiller contains refrigerants that are a proprietary mixture of different gasses. The actual blend may vary depending on the application. All of the blends of refrigerant gases are non-flammable and non-toxic.

  • Page 29: Polycold Cryochiller Overview

    (Meissner trap) or chevron baffle. The Polycold Cryochiller is also used to cool and heat objects such as electrostatic chucks used in semiconductor wafer processing.

  • Page 30: Polycold Cryochiller Versions

    Cryochiller Theory of Operation Service and Maintenance Manual Polycold Cryochiller Versions The Polycold Cryochiller is manufactured in different models, configurations, and options to fit a variety of applications. Table 3-1 shows the currently manufactured Polycold Cryochiller model numbers and their description.

  • Page 31: Operating Sequence

    Optional dual circuit Polycold Cryochillers split the refrigerant flow exiting the stack and share it with two parallel applications. 8. The pressure gauge located on the rear panel of the Polycold Cryochiller indicates equalization (charge) pressure when the system is not running. The gauge is included primarily for inspection during shipping.
  • Page 32 ® Polycold Cryochiller Overview Polycold Cryochiller Theory of Operation Service and Maintenance Manual Figure 3-1: Refrigeration Flow Diagram 185303 Revision E...

  • Page 33: Refrigerant Circuit Diagram

    ® Polycold Cryochiller Polycold Cryochiller Overview Service and Maintenance Manual Theory of Operation Refrigerant Circuit Diagram Figure 3-1: Refrigerant Circuit Diagram 185303 Revision E...

  • Page 34: Electrical Circuit Overview

    ® Polycold Cryochiller Overview Polycold Cryochiller Theory of Operation Service and Maintenance Manual Figure 3-2: Legend for Refrigerant Circuit Diagram Electrical Circuit Overview The System Electrical Block Diagram shown in Figure 3-3 provides an overview of the electrical routing. The 3 phase power enters at the main circuit breaker and connects to the compressor through the circuit controlled contactor.

  • Page 35: Electrical Block Diagram

    Figure 3-3: Cryo System Electrical Block Diagram Overload Detection Circuit The Polycold Cryochiller incorporates a physical circuit breaker (CB1) located behind the sliding door on the front panel. If tripped, this circuit breaker interrupts all incoming power to the unit and prevent the unit from restarting.

  • Page 36: Compressor Safety Chain

    ® Polycold Cryochiller Overview Polycold Cryochiller System Components Service and Maintenance Manual Compressor Safety Chain The compressor safety chain consists of several hardware/software interlocks that will cause the compressor to stop or prevent the compressor from starting. Table 3-2: Compressor Safety Chain...
  • Page 37 ® Polycold Cryochiller Polycold Cryochiller Overview Service and Maintenance Manual System Components Cold Valve Box Circuit 1 Circuit 1 VLV5 Return VLV8 Feed Cool Ckt 1 Line Aux Cool Ckt 1 Line Circuit 2 Feed Line Circuit 2 Return Line...

  • Page 38: Warm Valve Assembly

    ® Polycold Cryochiller Overview Polycold Cryochiller System Components Service and Maintenance Manual Warm Valve Assembly VLV 6 VLV 12 Defrost Ckt 1 Defrost Ckt 2 VLV 1 Buffer Valve VLV 17 Freezeout VLV 2 Rapid BP Check Figure 3-5: Illustration of Warm Valve Assembly...
  • Page 39 ® Polycold Cryochiller Polycold Cryochiller Overview Service and Maintenance Manual System Components VLV 12 Defrost Ckt 2 VLV 6 Defrost Ckt 1 VLV 2 Rapid BP Check VLV 1 Buffer Valve VLV 17 Freezeout Figure 3-6: Physical View of Warm Valve Assembly from front of unit...

  • Page 40: Compressor Compartment

    ® Polycold Cryochiller Overview Polycold Cryochiller System Components Service and Maintenance Manual Compressor Compartment MV115 Location of System Discharge Valve MV104 Warm Valve Compressor Assembly Suction Port Figure 3-7: Front View of Warm Valve Assy and Compressor MV105 Compressor Discharge Port...

  • Page 41: System Valves

    ® Polycold Cryochiller Polycold Cryochiller Overview Service and Maintenance Manual System Components System Valves Table 3-3: TSystem Valve Alignment During Operation System Valve Alignments Return Temp Mode Cool Defrost Freeze- Rapid (see Return Bypass Buffer Valve Valve notes) Valve Valve...

  • Page 42: Hand Valves

    ® Polycold Cryochiller Overview Polycold Cryochiller System Components Service and Maintenance Manual Hand Valves Polycold Cryochillers have up to 14 manually operated hand valves, depending on system configuration. Table 3-4: Hand Valve List Valve Description Type Location MV101 Hot Gas Feed Valve...

  • Page 43: Automatic Valves

    ® Polycold Cryochiller Polycold Cryochiller Overview Service and Maintenance Manual System Components Automatic Valves Polycold Cryochillers may have up to 17 system controlled solenoid operated valves, depending on system configuration. See system flow documentation p/n 690065-00. Table 3-5: Automatic Valve List...

  • Page 44: Pressure Sensing / Relief Components

    ® Polycold Cryochiller Overview Polycold Cryochiller System Components Service and Maintenance Manual Pressure Sensing / Relief Components Table 3-6: Pressure Transducer List Transducer Description Location Setpoint High Pressure Switch P > 3.10 bar Low Pressure Transducer (Suction / Return) -1< P < 34.5 bar High Pressure Transducer (Discharge / Feed) -1<...

  • Page 45: Thermocouples

    ® Polycold Cryochiller Polycold Cryochiller Overview Service and Maintenance Manual System Components Thermocouples Each Polycold Cryochiller may have up to 20 type T thermocouples as listed below, depending on configuration. Thermocouple Description Note Compressor Discharge Temperature Refrigerant Liquid Line Temperature...
  • Page 46 ® Polycold Cryochiller Overview Polycold Cryochiller System Components Service and Maintenance Manual This Page Intentionally Left Blank 3-18 185303 Revision E...

  • Page 47: Troubleshooting

    Read and understand each procedure before performing the procedure. Replaceable Parts Edwards Vacuum provides Field Replaceable Unit Kits, FRU Kits, for repair or replacement of common parts. Contact Edwards Vacuum for a listing of the FRU kits for your system. Troubleshooting Techniques...

  • Page 48: Hmi Service Menus

    ® Troubleshooting Polycold Cryochiller HMI Service Menus Service and Maintenance Manual HMI Service Menus HMI Service Menu allows access to service functions once the access code is entered. These menu selections are not included in the Installation and Operation Manual. See Figure 4-1 Figure 4-2.

  • Page 49: Troubleshooting Table Format

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual Troubleshooting Table Format Service Menu 1 SERVICE MODE BASELINE OPTIONS SERVICE MENU -RAPID BP CHK BUFFER VLV TEST CLDST LIQUID XX.X CONTACTOR TEST BP CHK CONT XX.X CONTINUE (Note: Home Screen when in mode) ACQUIRING BASELINE remain in standby RAPID BP CHK MODE...

  • Page 50: Hmi And Observed Errors

    ® Troubleshooting Polycold Cryochiller HMI and Observed Errors Service and Maintenance Manual HMI and Observed Errors Power Troubleshooting Troubleshooting power requires that CB1 and CB2 are turned on. Problem / HMI Display Possible Cause Corrective Action POWER FAILURE Control voltage is outside of Check the transformer tap acceptable limits.

  • Page 51: Communication Troubleshooting

    RS232, Contact authorized Service Ethernet, Profibus, or DeviceNet Compressor Motor Troubleshooting Troubleshooting the compressor motor requires that the Polycold Cryochiller is fully booted up. Problem / HMI Display Possible Cause Corrective Action Compressor will not start Compressor switch must be on Set compressor switch to ON.
  • Page 52 ® Troubleshooting Polycold Cryochiller HMI and Observed Errors Service and Maintenance Manual Problem / HMI Display Possible Cause Corrective Action Compressor will not start Compressor pressure switch Wait for pressure to come down PS1 is open indicating high below the threshold level. Fault LED flashing discharge pressure Contact authorized service if...

  • Page 53: Fan Fault

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual HMI and Observed Errors Fan Fault Problem / HMI Display Possible Cause Corrective Action FAN FAULT WARNING One or more electrical box cool- Check power and cable. ing fans are not operating. Check fan operation CHECK COOLING FAN Replace both cooling fans...
  • Page 54 ® Troubleshooting Polycold Cryochiller HMI and Observed Errors Service and Maintenance Manual Problem / HMI Display Possible Cause Corrective Action HIGH DISCHRG PRESS Discharge pressure is too high Review application to ensure it is within the capability of the EXCESSIVE HEAT LOAD unit.

  • Page 55: Temperature Related Troubleshooting

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual HMI and Observed Errors Temperature Related Troubleshooting Problem / HMI Display Possible Cause Corrective Action FREEZOUT PREVENTION Freeze out prevention sensor is Check refrigerant experiencing a temperature Check freezeout prevention Fault LED not lit colder than expected.

  • Page 56: Thermal Overload

    ® Troubleshooting Polycold Cryochiller HMI and Observed Errors Service and Maintenance Manual Problem / HMI Display Possible Cause Corrective Action LQD LINE START TEMP Cooling water flow and / or Check your temperature and temperature are outside of flow to ensure it is within NO RECOMMENDATION acceptable limits during system acceptable limits.
  • Page 57 ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual HMI and Observed Errors Problem / HMI Display Possible Cause Corrective Action C1 COOL VALVE CYCLE Cool valve requires replacement Contact authorized service C2 COOL VALVE CYCLE NO RECOMMENDATION Fault LED is Amber C1 DEFR VALVE CYCLE Defrost valve requires replace- Contact authorized service...

  • Page 58: Performance Related Troubleshooting

    ® Troubleshooting Polycold Cryochiller HMI and Observed Errors Service and Maintenance Manual Performance Related Troubleshooting Problem / HMI Display Possible Cause Corrective Action Too slow to go to cool Cryosurface full and requires Defrost the cryosurface defrosting. Contact authorized Service Fault LED not lit Date and Time rolled back Date or Time Error...

  • Page 59: Remote Monitor Troubleshooting (Optional)

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual Remote Monitor Troubleshooting (optional) Remote Monitor Troubleshooting (optional) This section is for the convenience of Remote Monitor troubleshooting. The tables below are the same faults as previously listed in this chapter but are listed in numerical order of the bitmask value. This section lists faults in numeric order of the bit mask value as received from the command ACTIVE_ALARMS.
  • Page 60 ® Troubleshooting Polycold Cryochiller Remote Monitor Troubleshooting (optional) Service and Maintenance Manual Bit Mask Value / Problem Possible Cause Corrective Action Bit 2 Coldest Liquid Temperature Check freezeout prevention (TC4) valve. Freeze out prevention active (6C low-side dead band in effect Check freezeout TC installation Fault LED Amber when FRZ_RREVENT_SETPT >...
  • Page 61 ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual Remote Monitor Troubleshooting (optional) Bit Mask Value / Problem Possible Cause Corrective Action Bit 8 Compressor Discharge Temper- Contact authorized service ature (TC1) too high High discharge temperature TC1 >=135C for 30min LED Amber Waning L2 Warning: Compressor ON...
  • Page 62 ® Troubleshooting Polycold Cryochiller Remote Monitor Troubleshooting (optional) Service and Maintenance Manual Bit Mask Value / Problem Possible Cause Corrective Action Bit 11 Refrigerant Liquid Line Check cooling water flow and Temperature (TC2) multiple temperature Refrigerant liquid line temp conditions Fault LED Amber TC2 is between 9C and 12C for 1 min.
  • Page 63 ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual Remote Monitor Troubleshooting (optional) Bit Mask Value / Problem Possible Cause Corrective Action Bit 15 Absolute difference between Wait 30 minutes to clear PT2 and PT1 < 137.9kpa (20 Thermal Overload psi) for 20 seconds Check input power and load.
  • Page 64 ® Troubleshooting Polycold Cryochiller Remote Monitor Troubleshooting (optional) Service and Maintenance Manual Bit Mask Value / Problem Possible Cause Corrective Action Bit 21 Cylinder Unloader Valve Cycle Count has exceeded limit Cylinder Unloader Valve Cycle Contact authorized service CRYO_VALV_OPEN_CNT  Fault LED Amber for Cylinder Unloader valve >...
  • Page 65 ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual Remote Monitor Troubleshooting (optional) Bit Mask Value / Problem Possible Cause Corrective Action Bit 27 Bypass valve cycle count has exceeded limit Bypass Valve Cycle Contact authorized service CIRC_VALV_OPEN_CNT  Fault LED Amber for Bypass valve >...

  • Page 66: Web Gui

    A remote computer with a supported web browser such as Internet Explorer 5, 6, or 7 that is connected to the Polycold Cryochiller Ethernet port is required for logging onto the Polycold Cryochiller LAN. Enter the address of the system in the browser address bar to log on, as shown in the sample below: ...

  • Page 67: Web Gui Home Page

    When the changes are loaded, an acceptance message appears. WEB GUI Home Page The Home page allows for control of the Polycold Cryochiller using a mouse to actuate virtual switches that function the same as the HMI keypad. The Home page also allows access to the other windows of the GUI.

  • Page 68: Web Gui Sign In Page

    ® Troubleshooting Polycold Cryochiller WEB GUI Service and Maintenance Manual WEB GUI Sign In Page The “sign in” selection is available on most WEB GUI pages. It allows for access to the GUI functions based on the security level used during sign in. •...

  • Page 69: Web Gui Status Page

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual WEB GUI WEB GUI Status Page The Status page allows viewing the status of the system components. Figure 4-5: WEB GUI Status Page 185303 Revision E 4-23...

  • Page 70: Web Gui Configuration Page

    ® Troubleshooting Polycold Cryochiller WEB GUI Service and Maintenance Manual WEB GUI Configuration Page Configuration is the first of three configuration pages. It allows for general system access and communication parameters. Figure 4-6: WEB GUI Configuration Page 4-24 185303 Revision E...

  • Page 71: Web Gui Control Configuration Page

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual WEB GUI WEB GUI Control Configuration Page Control configuration is the second of three configuration pages. It allows for setting modes and types of operation. Figure 4-7: WEB GUI Control Configuration Page 185303 Revision E 4-25...

  • Page 72: Web Gui Parameter Configuration Page

    ® Troubleshooting Polycold Cryochiller WEB GUI Service and Maintenance Manual WEB GUI Parameter Configuration Page Parameter Configuration is the third of three configuration pages. Param Config page allows for each parameter to be configured. • Scroll to the parameter • Enter the value •...

  • Page 73: Web Gui Service Password Page

    ® Polycold Cryochiller Troubleshooting Service and Maintenance Manual WEB GUI WEB GUI Service Password Page The Service Page allows access after the system service password is entered. Figure 4-9: WEB GUI Service Page - Password Entry 185303 Revision E 4-27...
  • Page 74 ® Troubleshooting Polycold Cryochiller WEB GUI Service and Maintenance Manual This Page Intentionally Left Blank 4-28 185303 Revision E...

  • Page 75: Software Command Set

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Contents Software Command Set This chapter contains the full published command set including commands with a Get or Set level above 3 that are not in the Installation and Operations Manual. The commands are used by RS-232 or Ethernet from a host or service computer.

  • Page 76: Command Format

    Must be terminated with an ASCII Carriage Return (CR) (Hex 0D). • Must be sent complete to Polycold Cryochiller under 10 seconds from the $ to the <CR> for the unit to recognize data sent as a complete command •...

  • Page 77: 32 Bit Numbered Bitfield

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Command Format Table 5-1: Command Reply Codes Letter Meaning ‘A’ Command understood. Reply (if any) follows. ‘F’ Invalid command or invalid data argument for the given command such as SET command value is out of range.

  • Page 78: Checksum Calculation

    ® Software Command Set Polycold Cryochiller Command Format Service and Maintenance Manual Hex Bit Hex Digit 8 Hex Digit 7 Hex Digit 6 Hex Digit 5 Hex Value Binary Value Decimal Value Checksum Calculation. The checksum algorithm is defined as follows: Perform the 8 bit sum of all the ASCII characters sent in the data field (with the most significant bit cleared to 0, ignore parity).

  • Page 79: Example Of Interface Usage

    Example of Interface Usage: Example of Interface Usage: User has Polycold Cryochiller with connections for both the RS-232 port and Ethernet Port. The user wants to set a parameter value for AUX_COOL_SETPT using the RS-232 connection. In the RS-232 terminal, the user must •...

  • Page 80: Security Levels

    Security Levels Service and Maintenance Manual Security Levels Polycold Cryochiller command functions are security protected and require that the security level be set to a specific level in order to perform the Get or Set command functions. • Security Level 1 - Limited Operator Access Password: 102030A (where all 0s are zeros) •...

  • Page 81: Command Listing Format

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Command Listing Format Command Listing Format The commands are listed in this chapter using the title block and table format below. ABC_DEF Description of the Command Purpose: Describes the purpose of the command Parameter(s): List of parameters Return Value:...
  • Page 82 ® Software Command Set Polycold Cryochiller Commonly Used Host Commands Service and Maintenance Manual Command Description SW_VER Get the currently running system software/firmware version UNIT_BALANCE_PRESSURE Get the system balance pressure (static charge) COOL_SETPT Get/Set the system setpoint for the temperature controlled Cool modes DEFR_SETPT Get/Set the system setpoint for the temperature controlled...

  • Page 83: System Configuration Commands

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Configuration Commands System Configuration Commands SW_VER Software Version & Build Number Purpose: Returns identifier strings for the current software version and build number. Published: Return Value: [A][nn.nn.nn.nn] (major.minor.patch.build) Default Value: Security Level: Get: 1 Set (none)

  • Page 84: Date_Time

    ® Software Command Set Polycold Cryochiller System Configuration Commands Service and Maintenance Manual DATE_TIME Date & Time Purpose: Get/set the system date/time. Parameter(s): ? or [year],[month],[day],[hour],[min],[sec] all parameters are specified as integers Return Value: [A] or [A] [year],[month],[day],[hour],[min],[sec] Default Value: Security Level: Get: 1 Set: 5...

  • Page 85: Network_Mask

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Configuration Commands NETWORK_MASK Network Mask Purpose: Get/set the subnet mask for the system. Parameter(s): ? or [nnn.nnn.nnn.nnn] [nnn.nnn.nnn.nnn] is the Network Mask address Return Value: [A] or [A][nnn.nnn.nnn.nnn] Default Value: 0.0.0.0 Security Level: Get: 1...

  • Page 86: Profibus_Params

    ® Software Command Set Polycold Cryochiller System Configuration Commands Service and Maintenance Manual PROFIBUS_PARAMS Profibus parameters Purpose: Bet the profibus speed and Get/Set Profibus Parameter(s): SPEED,? or, ADDRESS,? or, ADDRESS, [address] [speed] is READ ONLY 0 = 9.6k 1 = 19.2k 2 = 45.45k 3 = 93.75k 4 = 187.5k...

  • Page 87: Unit_Model_Num

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Configuration Commands UNIT_MODEL_NUM Get the Unit Model Number Purpose: Get/Set identifier string indicating the unit model number, up to 14 characters. Parameter(s): ? or [nnnnnnnnnnnnnn] Return Value: [A] or [A][nnnnnnnnnnnnnn] Default Value: Security Level Get: 1...

  • Page 88: Legacy_Remote,Comp_Signal_Logic

    ® Software Command Set Polycold Cryochiller System Configuration Commands Service and Maintenance Manual LEGACY_REMOTE,COMP_SIGNAL_LOGIC Compressor Input Signal Logic Purpose: Get/Set the Legacy Remote compressor input signal logic. Default setting is equivalent to jumper “J11” being placed on PFC system control board. The compressor will not be controlled by Legacy Remote compressor on/off input signal.

  • Page 89: Legacy_Remote,Rmt_Signal_Logic

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Configuration Commands LEGACY_REMOTE,RMT_SIGNAL_LOGIC Legacy Remote Output Signal Logic Purpose: Get/Set the Legacy Remote, remote output signal logic. Default setting is to remain compatible with remote signal functionality on PFC. The remote output signal will be Low when the Compressor is off regardless of unit being in Local or Remote control.

  • Page 90: Legacy_Remote,Op_Mode_Logic

    ® Software Command Set Polycold Cryochiller System Configuration Commands Service and Maintenance Manual LEGACY_REMOTE,OP_MODE_LOGIC Legacy Remote Operating Mode Logic Purpose: Get/Set the Legacy Remote, operating mode logic when cool and defrost signals are both High. Default setting is to remain compatible with operating mode functionality on PFC.

  • Page 91: System Operational State Commands

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands System Operational State Commands SYSTEM_CONTROL_MODE_DEF Default System Control Mode Purpose: Get/set the default system control mode on startup. This command does not actually change the mode. Parameter(s): ? or [mode] [mode] is...

  • Page 92: Fault_Status

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual Example: “SYSTEM_CONTROL_MODE,0” Set the system to local mode. Interface RS-232, Ethernet FAULT_STATUS Current Fault Status Purpose: Get the current fault status. Parameter(s): Return Value [A] or [A][nnnnnnnn],[nnnnnnnn] parameter 1: Equipment operation faults : 32 bit number / bitfield hex encoded bit 0: HIGH DISCHRG PRESS...

  • Page 93: Alarm_Status

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands Return Value bit 11: C2 OUTLET SENSOR (TC12) (continued) bit 12: C1 PROC CTRL SENSOR (TC7) bit 13: C2 PROC CTRL SENSOR (TC8) bit 14: BYPASS SENSOR (TC15) bit 15: BUFFER LINE TC FAULT (TC16) bit 16: OPTION1 TC FAULT (TC17) bit 17: OPTION2 TC FAULT (TC18)

  • Page 94: Active_Alarms

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual Return Value: [A] or [A],[alarm status bits] or [A], [circuit 1 alarm status bits], [circuit 2 alarm status bits] The alarm name and status. “alarm name” is the name used to refer to the alarm “alarm status bits”...
  • Page 95 ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands Return Value • bit 16: C1/C2 COOL TEMP SETPT • bit 17: C1/C2 DFR TEMP SETPT • bit 18: C1/C2 COOL TEMP RAMP • bit 19: C1/C2 DFR TEMP RAMP •...

  • Page 96: Service_Interval

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual Return Value parameter 3: Performance Monitor alarms: 32 bit number / bitfield • bit 0: Balance Pressure • bit 1: Cool Performance • bit 2: Trend Cool •...

  • Page 97: Capacity_Target_Temp

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands CAPACITY_TARGET_TEMP Cooling Capacity Target Temperature Purpose: Get/Set the cooling capacity target temperature used to define normal capacity for non-temperature controlled cooling modes to engage power management mode Monitor Data: Refrigerant return temperature Parameter(s):...

  • Page 98: Power_Mgmt_Standby_Delay

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual POWER_MGMT_STANDBY_DELAY Excess Capacity Temperature difference Purpose: Get/Set Power Management Standby Mode delay time Monitor Data: Time Parameter(s): ? or [nnnn] [nnnn] is delay in seconds Return Value: [A] or [A][nnnn] Data Type: Integer...

  • Page 99: Frz_Prevent_Setpt_Offset

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands FRZ_PREVENT_SETPT_OFFSET Freezeout Prevention Set Point Offset Purpose: Get/Set the freezeout prevention set point offset for the freezeout prevention valve to be used during specified operating modes. When applied, the control point is increased (warmed) by the number of degrees specified by this offset from the FRZ_PREVENT_SETPT Monitor Data:...

  • Page 100: Frz_Prevent_Stpr_Mtr_Enable Freezeout Prevention Stepper Motor Enable5-26

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual FRZ_PREVENT_STPR_MTR_ENABLE Freezeout Prevention Stepper Motor Enable Purpose: Enable/Disable the freezeout prevention function of the stepper motor, cool valve, return valve when in Standby or Cool modes on dual circuit units Monitor Data: Coldest liquid temperature...

  • Page 101: Fop_Valve_Duty_Cycle

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands FOP_VALVE_DUTY_CYCLE Freezeout Prevention Valve Duty Cycle Purpose: Get/Set the minimum close time and maximum open duration time for the FOP valve. Monitor Data: Time Parameter(s): [n],? or [n],[nnn] [n] is FOV Open/Close 0 = Min Closed Time 1 = Max Open Time...

  • Page 102: Buffvalve_Startup_Setpt

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual Parameter(s): 4 = Return 5 = Bypass 6 = Buffer 7 = Rapid BP Check 8 = Cylinder Unloader 9 = Freezeout Prevention [nnnn] is warning count Return Value: [A] or [A][nnnn] Data Type:...

  • Page 103: Buffvalve_Min_Open_Temp

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Operational State Commands BUFFVALVE_MIN_OPEN_TEMP Buffer Valve Minimum Open Temp. Purpose: Get/Set the minimum temperature at which the buffer valve may open when the unit is starting. Monitor Data: Coldest liquid temperature Parameter(s): ? or [nnn.n] [nnn.n] is open temperature...

  • Page 104: Buffvalve_Enable

    ® Software Command Set Polycold Cryochiller System Operational State Commands Service and Maintenance Manual BUFFVALVE_ENABLE Buffer Valve Enable Purpose: Get/set whether the buffer valve is enabled. Monitor Data: Parameter(s): ? or [n] [n] is 1 = enabled 0 = disabled Return Value: [A] or [A][n] Data Type:...

  • Page 105: System Sensor Readings

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Sensor Readings System Sensor Readings SENSOR_SNAPSHOT Sensor Data Snapshot Purpose: Get a snapshot of the current sensor data. Parameter(s): Return Value [A][nnnnnnnn1],[nnnnnnnn2],[nnn.n]…. Param 1 is bit field for if sensors values are valid (valid = 1) hex encoded •...

  • Page 106: System_Valve_State

    ® Software Command Set Polycold Cryochiller System Sensor Readings Service and Maintenance Manual Return Value • bit 9: Ckt1 Return Valve • bit 10: Ckt1 Bypass Valve • bit 11: Ckt2 Cool Valve • bit 12: Ckt2 Defrost Valve • bit 13: Ckt2 Temperature Control Valve •...

  • Page 107: Cold_Junct_Temp

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Sensor Readings Units: Degrees Celsius (signed) Security Level Get: 1 Set: N/A Example: “CLDST_LQD_TEMP,?” Interface RS-232, Ethernet COLD_JUNCT_TEMP Cold Junction Temperature Purpose: Get the cold junction temperature. (TC21) Parameter(s): Return Value: [A][nnn.n] Default Value:...

  • Page 108: Buffer_Pulse_Delay

    ® Software Command Set Polycold Cryochiller System Sensor Readings Service and Maintenance Manual BUFFER_PULSE_DELAY Buffer Pulse Delay Value Purpose: Get/set the enable and delay of the buffer valve to pulse open/closed after the buffer valve has been closed by normal system operation. Buffer valve pulse open time is a fixed 1.5 seconds (open/close).

  • Page 109: Buffer_Recovery

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Sensor Readings BUFFER_RECOVERY Buffer Recovery Value Purpose: Get/set the enable, delay and temperature of the buffer valve to periodically pulse open. Buffer valve pulse open time is a fixed 1.5 seconds (open/close). Monitor Data: Time and Temperature (Buffer Line TC16) Parameter(s):...

  • Page 110: Warm_Ctl_Temp

    ® Software Command Set Polycold Cryochiller System Sensor Readings Service and Maintenance Manual WARM_CTL_TEMP Rapid BP Check - Stack Warmer Control Temperature Rapid Balance Pressure Check is previously referred to as Stack Warm. Purpose: Get the rapid BP check control temperature sensor value. (TC6) Parameter(s): Return Value: [A][nnnn]...

  • Page 111: System Actions Commands

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Actions Commands System Actions Commands RESET_ALARMS Reset alarms Purpose: Acknowledge all outstanding alarms. Parameter(s): Return Value: Default Value: Security Level Get: N/A Set: 2 Example: “RESET_ALARMS” Interface RS-232, Ethernet SECURITY_LEVEL Security Level Purpose: Get/set the system security level.

  • Page 112: Dsp_Reset Dsp Reset

    ® Software Command Set Polycold Cryochiller System Actions Commands Service and Maintenance Manual DSP_RESET DSP Reset Purpose: Reset the DSP. Parameter(s): Return Value: Default Value: Security Level Get: N/A Set: 4 Example: “DSP_RESET” Interface RS-232, Ethernet NV_RESET NV Reset Purpose: Reset non-volatile storage parameters to their default values.

  • Page 113: Service Commands

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Service Commands Security Level: Get: N/A Set: 6 Example: “DELETE_BASELINE,COOL_BASELINES” deletes the cool mode baselines Interface RS-232, Ethernet Service Commands SERVICE_MODE Enter the specified service mode Purpose: Get/Set the service mode Monitor Data: Parameter(s): ? or [n],[cccccccc]...

  • Page 114: Service_Mode_Self_Diagnostics

    ® Software Command Set Polycold Cryochiller Service Commands Service and Maintenance Manual SERVICE_MODE_SELF_DIAGNOSTICS Enter self diagnostics check service mode Purpose: Get/Set the self diagnostics check service mode Parameter(s): ? or [n] [n] is the test to run 0 = Normal Operating Mode 1 = Buffer Valve Test 2 = Contactor Test Return Value:...

  • Page 115: Service_History

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Service Commands SERVICE_HISTORY Service Access History Purpose: Get the service access history Parameter(s): [n],? [n] is the number of days to display from current day Return Value: [A][ccccccc] Default Value: Security Level: Get: 4 Set: N/A...

  • Page 116: Compressor Configuration Commands

    ® Software Command Set Polycold Cryochiller Compressor Configuration Commands Service and Maintenance Manual Compressor Configuration Commands COMP_SERIAL_NUM Compressor Serial Number Purpose: Get / Set identifier string representing the serial number of the specified Compressor Module. Parameter(s): [n],? or [cccccccc] [n] is 0 = Refrigerant compressor 1 = Nitrogen compressor [cccccccc] is serial number string (32 character max)

  • Page 117: Compressor Operational State Commands

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Compressor Operational State Commands Compressor Operational State Commands COMP_MOTOR_STATE Refrigerant Compressor On/Off State Purpose: Get/Set the refrigerant compressor motor on/off state. Parameter(s): [n],? or [n1] [n] is 0 = Refrigerant compressor 1 = Nitrogen compressor [n1] is motor state 0 = motor off (contactor open)

  • Page 118: Comp_Press_Sw_Det

    ® Software Command Set Polycold Cryochiller Compressor Sensor Readings Service and Maintenance Manual COMP_PRESS_SW_DET Compressor Suction Pressure Switch Detection Purpose: Get/set whether compressor suction pressure switch detection is enabled or disabled. The enable state specifies whether a fault is reported when the pressure switch opens.

  • Page 119: Comp_Dp

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Compressor Sensor Readings COMP_DP Compressor Differential Pressure Purpose: Read the compressor differential pressure. (Supply pressure minus Return Pressure) Parameter(s): [n],? [n] is 0 = Refrigerant compressor 1 = Nitrogen compressor Return Value: [A][nnnn] Default Value:...

  • Page 120: Comp_Line_Temp

    ® Software Command Set Polycold Cryochiller Compressor Sensor Readings Service and Maintenance Manual Security Level Get: 1 Set: N/A Example: “COMP_DISCHRG_TEMP,0,?” Interface RS-232, Ethernet COMP_LINE_TEMP Compressor Liquid Line Temperature Purpose: Read the compressor liquid line temperature sensor value. (TC2) Parameter(s): [n],? [n] is 0 = Refrigerant compressor...

  • Page 121: Comp_Dschrg_Press

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands COMP_DSCHRG_PRESS Compressor Discharge Pressure Purpose: Read the compressor discharge pressure sensor value. Parameter(s): [n],? [n] is 0 = Refrigerant compressor 1 = Nitrogen compressor Return Value: [A][nnnn] Default Value: Security Level Get: 1...

  • Page 122: Setpoint_Relay

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual SETPOINT_RELAY External Vacuum Device Vacuum Level Set Point Purpose: Get/set the External Relay 1 or Relay 2, Relay open parameters Monitor Data: Setpoint Type SETPOINT_RELAY,[1.2],? Parameter(s) SETPOINT_RELAY,[1.2],[Setpoint Type],[Relay Logic],[Setpoint],[Deadband] Paramters: - Relay [1.2] = Setpoint Relay 1 or Relay 2...

  • Page 123: Ext_Vac_Contact

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands Min: Setpoint Type: 0 Max: Setpoint Type: 21 Relay Logic: 0 Relay Logic Setpoint: -200 Setpoint: 600 Deadband: 0 Deadband: 600 Units: Security Level: Get: 1 Set: 3 “SETPOINT_RELAY,1,?”...

  • Page 124: Cool_Setpt

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual COOL_SETPT Cooling Termination Set Point Purpose: Get/set the cooling termination set point (target) for temperature controlled cooling mode. Monitor Data: Refrigerant return temperature. Parameter(s): [n],? or [n],[nnn.n] [n] is circuit number or * for all circuits [nnn.n] is the set point Return Value:...

  • Page 125: Cool_Ramp_Limit

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands COOL_RAMP_LIMIT Cooling Ramp Limit Purpose: Get/set the cooling ramp limit for temperature ramp controlled cooling. Monitor Data: Refrigerant return temperature change per minute Parameter(s): [n], ? or [n],[nnn.n] [n] is circuit number or * for all circuits [nnn.n] is the ramp limit Return Value:...

  • Page 126: Cool_Ramp_Sample_Cnt

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual COOL_RAMP_SAMPLE_CNT Cooling Ramp Sample Count Purpose: Get/set the number of samples to use for computing the cooling average in temperature ramp controlled cooling mode. Monitor Data: None. Parameter(s): [n],? or [n],[nnn]...

  • Page 127: Aux_Cool_Setpt

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands AUX_COOL_SETPT Auxiliary Cool Set Points Purpose: Get/Set the auxiliary cool temperature set points for rapid cooldown. Monitor Data: Refrigerant return temperature Parameter(s): [n],? or [n],[nnn.n1],[nnn.n2] [n] is circuit number or * for all circuits [nnn.n1] is the open temp [nnn.n2] is the close temp Return Value:...

  • Page 128: Xtalk_Aux_Valve

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual Example: “XTALK_FORTIFY_LIMIT,1,?” Get the temp limit for circuit 1 Interface RS-232, Ethernet XTALK_AUX_VALVE Thermal Cross-talk Aux Valve Functionality Purpose: Get/Set the Enable state of Thermal Cross-talk aux. cool valve for the circuit being Guarded Monitor Data: Parameter(s):...

  • Page 129: Xtalk_Guard

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands XTALK_GUARD Thermal Cross-talk Guard On/Off Purpose: Get/Set the Enable state of Thermal Cross-talk circuit Guarding Monitor Data: Parameter(s): ? or [n] [n] is the enabled state of Guarding 0 - Disabled 1 - Enabled Return Value:...

  • Page 130: Xtalk_Guard_Temp

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual XTALK_GUARD_TEMP Thermal Cross-talk Guard Temperature Purpose: Get/set the temperature below which thermal crosstalk guarding kicks in Monitor Data: Refrigerant Return Temp Parameter(s): [n],? or [n],[nnnn] [n] is circuit number or * for all circuits [nnnn] is the guard temperature Return Value: [A] or [A][nnnn]...

  • Page 131: Xtalk_Guard_Setpt_A Thermal Cross-Talk Guard Setpoint

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands Example: “XTALK_GUARD_SETPT_ENABLE,?” Get the enable state of Guarding Set- point Interface RS-232, Ethernet ‘XTALK_GUARD_SETPT_A Thermal Cross-talk Guard Setpoint Get/set the temperature of circuit A for thermal crosstalk protection. Purpose: XTALK_GUARD_SETPT_ENABLE must be 1 to use setpoint.

  • Page 132: Xtalk_Below_Limit

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual Default Value: Min: 0 Max:20 Units: Degrees Celsius (signed) Security Level Get: 1 Set: 3 Example: “XTALK_ABOVE_LIMIT,1,?” Get temp limit for circuit 1 Interface RS-232, Ethernet XTALK_BELOW_LIMIT Thermal Cross-talk Unpause Below Limit Purpose: Get/set the temperature below which the thermal crosstalk protection resets the...

  • Page 133: Avg_Temp_Enable Average Temperature Enable

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands AVG_TEMP_ENABLE Average Temperature Enable Purpose: Get/Set control based on the average of the circuit feed and return temperatures for thermal xtalk. When disabled will used the return temperature only Monitor Data: Refrigerant Return Temp, Refrigerant Feed Temperature Parameter(s):...

  • Page 134: Defr_Ramp_Limit

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual DEFR_RAMP_LIMIT Defrost Ramp Limit Purpose: Get/set the defrost ramp limit for temperature ramp controlled defrost. Monitor Data: Return temperature change per minute Parameter(s): [n],? or [n],[nnn.n] [n] is circuit number or * for all circuits [nnn.n] is the ramp limit Return Value: [A] or [A][nnn.n]...

  • Page 135: Defr_Ramp_Sample_Cnt Defrost Ramp Sample Count

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands DEFR_RAMP_SAMPLE_CNT Defrost Ramp Sample Count Purpose: Get/set the number of samples to use for computing the defrost average in temperature ramp controlled defrost mode. Monitor Data: None Parameter(s): [n],? or [n],[nnn]...

  • Page 136: Ext_Defrost_Alarm_Deadband

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual EXT_DEFROST_ALARM_DEADBAND Extended Defrost Alarm Deadband Purpose: Get/Set the extended defrost alarm deadband around the temperature control deadband. It is expected that the alarm (fault) deadband will be larger than the defrost deadband.

  • Page 137: Pid_Monitor_Params

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Configuration Commands Interface RS-232, Ethernet PID_MONITOR_PARAMS PID monitor parameters Purpose: Get/set the monitoring parameters used for PID control of the circuit. Parameter(s): [n],? or [n],[n],[n] Param 1 = circuit number (1..2) Param 2 = PID Control Rate in seconds Param 3 = Temperature Control Valve (0 = On/Off Valve, 1 = Stepper Motor Valve)

  • Page 138: Ext_Tc_Alarm

    ® Software Command Set Polycold Cryochiller Circuit Configuration Commands Service and Maintenance Manual Security Level Get: 1 Set: 3 Example: “EXT_TC_ENABLE,1,?” Get the enable state of the circuit 1 external thermocouple Interface RS-232, Ethernet EXT_TC_ALARM External thermocouple alarm Purpose: Get/set the alarm setpoint for the External Thermocouple if enabled. Alarm is raised if difference between External TC temperature and Return temperature of circuit is greater than setpoint Parameter(s):...

  • Page 139: Circuit Operational State Commands

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Operational State Commands Circuit Operational State Commands OPERATING_MODE_DEF_COOL Cool operating mode default state Purpose: Get/set the operating mode’s default cool state. Parameter(s): [n],? or [n],[mode] [n] is the circuit number (1..4) [mode] is 0 = COOL 1 = Not Used...

  • Page 140: Operating_Mode

    ® Software Command Set Polycold Cryochiller Circuit Operational State Commands Service and Maintenance Manual OPERATING_MODE Current Operating Mode Purpose: Get/set the current operating mode. Parameter(s): [n], ? or [n],[mode] [n] is the circuit number (1..4) [mode] is -1= INACTIVE (Note: Cannot “Set” this mode) 0 = STANDBY 1 = cool (default) –...

  • Page 141: Cryo_Valv_Open_Cnt

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Operational State Commands Default Value: None Min: 0 Max: 1000000 Security Level: Get: 5 Set: 5 Example: “CIRC_VALV_OPEN_CNT,1,0,?” Get circuit 1 cooling valve open count. Interface RS-232, Ethernet CRYO_VALV_OPEN_CNT Cryo Valve Open Count Purpose: Get/Set the number of times the buffer valve has been opened.

  • Page 142: Circuit Sensor Readings Commands

    ® Software Command Set Polycold Cryochiller Circuit Sensor Readings Commands Service and Maintenance Manual Circuit Sensor Readings Commands CIRCUIT_VALVE_STATE Valve Open/Closed State of a Circuit's valve Purpose: Get the open/closed state of a valve belonging to a circuit. A value of 1 indicates the valve is open.

  • Page 143: Circuit Outlet Temperature

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual Circuit Sensor Readings Commands CIRC_OTLT_TEMP Circuit Outlet Temperature Purpose: Read the circuit outlet temperature sensor value. TC10 / TC11 Parameter(s): [n],? [n] is circuit number (1..4) Return Value: [A][nnnn] Default Value: Security Level Get: 1 Set: N/A...

  • Page 144: Circ_Proc_Ctl_Temp

    ® Software Command Set Polycold Cryochiller System Fault Commands Service and Maintenance Manual CIRC_PROC_CTL_TEMP Circuit Process Control Temperature Purpose: Read the circuit process control temperature sensor value. TC7 /TC8 Parameter(s): [n],? [n] is circuit number (1..4) Return Value: [A][nnnn] Default Value: Security Level Get: 1 Set: N/A...

  • Page 145: Performance_Monitor

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Fault Commands Units: volts Security Level Get: 1 Set: 3 Example: “PWR_WARN_BAND,23,31” Set the power management warning band to the range 23 – 31. Interface RS-232, Ethernet PERFORMANCE_MONITOR Performance Monitor Purpose: Set/Get Performance Monitoring option, to display predictive diagnostic warn- ings...

  • Page 146: Sensor_Valid_Limit

    ® Software Command Set Polycold Cryochiller System Fault Commands Service and Maintenance Manual Return Value: [A] or [A][nominator/denominator+(offset)] or [A][nominator/denominator+(offset)],[nominator/denominator+(offset)] Data Type: Double Default Value: 1/1+(0) Min: N/A Max: N/A Units: Security Level: Get: 1 Set: 3 Example: “TC_TEMP_OFFSETS,*,?” Get the temperature offsets for all thermocouples. Interface RS-232, Ethernet SENSOR_VALID_LIMIT...

  • Page 147: Sensor Fault Limits

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Fault Commands SENSOR_FAULT_LIMIT Sensor Fault Limits Purpose: Get/Set the high & low limits and the out of range duration for sensor faults. Monitor Data: Each sensor Parameter(s): [ID],? or [ID],[nnn1],[nnn2],[nnn3] [ID] is TC[1..21] = Thermocouple number PT[1..

  • Page 148: Line_Temp_High_Limit

    ® Software Command Set Polycold Cryochiller System Fault Commands Service and Maintenance Manual LINE_TEMP_HIGH_LIMIT Liquid Line Temperature High Limit Purpose: Get/Set liquid line temperature high threshold limits for temperature and time delay for the COOLING WATER warning/alarm during continuous operation. Monitor Data: Temperature and Time Parameter(s):...

  • Page 149: Line_Temp_Low_Limit

    ® Polycold Cryochiller Software Command Set Service and Maintenance Manual System Fault Commands LINE_TEMP_LOW_LIMIT Line Temperature Low Limit Purpose: Get/Set liquid line temperature low threshold limits for temperature and time delay for the COOLING WATER warning/alarm during continuous operation. Monitor Data: Temperature and Time Parameter(s): ? or [n1,t1,n2,t2]...

  • Page 150: Line_Temp_Startup_Limit

    ® Software Command Set Polycold Cryochiller System Fault Commands Service and Maintenance Manual LINE_TEMP_STARTUP_LIMIT Line Temperature Startup Limit Purpose: Get/Set startup liquid line temperature high threshold limits for temperature and time for the WATER TEMP HIGH warning/alarm during compressor startup. Monitor Data: Temperature and Time Parameter(s):...

  • Page 151: Preventive Maintenance

    NOTICE Refrigerant removal or charging must be performed by Edwards Service personnel or Edwards authorized service providers. Customers must never attempt to add or remove refrigerant from the unit or the system.

  • Page 152: Preventive Maintenance Schedules

    ® Preventive Maintenance Polycold Cryochiller Preventive Maintenance Schedules Service and Maintenance Manual Preventive Maintenance Schedules Action Interval Daily Ensure the unit is functioning as expected Ensure the unit is functioning as expected Weekly Check Temperatures (during process) Check Pressures (during process) Monthly Perform Weekly Maintenance Check Time to Cool Down...

  • Page 153: Appendixes

    Appendix A: Contact Edwards ........
  • Page 154 Work that was done on the equipment prior to the error • Actions taken after the error and the results of those actions • Other information that may assist the Specialist 6. Contact Edwards Vacuum Technical Support at these numbers: Table 7-1: Edwards Contact Information Edwards Location GUTS ®...

  • Page 155: Appendix B: Sds

    Appendix B: SDS INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Edwards s.r.o. Chemwatch: 5366-71 Issue Date: 20/01/2021 Version No: 6.1.11.7 Print Date: 15/06/2021 Safety data sheet according to REACH Regulation (EC) No 1907/2006, as amended by UK REACH Regulations SI 2019/758 L.REACH.GB.EN...

  • Page 156: Section 3 Composition / Information On Ingredients

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Precautionary statement(s) Prevention P271 Use only outdoors or in a well-ventilated area. P261 Avoid breathing gas Precautionary statement(s) Response P312 Call a POISON CENTER/doctor/physician/first aider/if you feel unwell. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • Page 157 Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders DO NOT introduce oil or ointment into the eye(s) without medical advice DO NOT use hot or tepid water. If skin contact occurs: Immediately remove all contaminated clothing, including footwear.

  • Page 158: Section 5 Firefighting Measures

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Monitor and treat, where necessary, for arrhythmias. Start an IV D5W TKO. If signs of hypovolaemia are present use lactated Ringers solution. Fluid overload might create complications. Drug therapy should be considered for pulmonary oedema.

  • Page 159: Section 8 Exposure Controls / Personal Protection

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders ·Before connecting gas cylinders, ensure manifold is mechanically secure and does not containing another gas. DO NOT transfer gas from one cylinder to another. Fire and explosion protection See section 5 ·Do NOT store halogenated aliphatics in areas containing alkali or alkaline earth metals such as powdered aluminum, zinc, or beryllium...
  • Page 160 Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Ingredient TEEL-1 TEEL-2 TEEL-3 argon 65,000 ppm 2.30E+05 ppm 4.00E+05 ppm 1,1,1,3,3-pentafluoropropane 900 ppm 25,000 ppm 1.50E+05 ppm tetrafluoromethane 92 ppm 1,000 ppm 6,000 ppm trifluoromethane 440 ppm...

  • Page 161: Section 9 Physical And Chemical Properties

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Positive pressure, full face, air-supplied breathing apparatus should be used for work in enclosed spaces if a leak is suspected or the primary containment is to be opened (e.g. for a cylinder change) Air-supplied breathing apparatus is required where release of gas from primary containment is either suspected or demonstrated.
  • Page 162 Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Depression of the central nervous system is the most outstanding effect of most halogenated aliphatic hydrocarbons. Inebriation and excitation, passing into narcosis, is a typical reaction. In severe acute exposures there is always a danger of death from respiratory failure or cardiac arrest due to a tendency to make the heart more susceptible to catecholamines (adrenalin) Material is highly volatile and may quickly form a concentrated atmosphere in confined or unventilated areas.

  • Page 163: Section 12 Ecological Information

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders exposure levels (44,000 ppm or greater; . 241,000 mg /m3). Long-term exposure to HFC-245fa vapour at high concentrations (50,000 ppm; 274,000 mg/m3) was tolerated with only minimal signs of toxicity. Some exposure-related clinical signs of central nervous system depression (such as irregular respiration, restless behaviour, intermittent muscular contractions, abnormal posture and reduced response to external stimuli) were seen.

  • Page 164: Section 13 Disposal Considerations

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders EC50 Crustacea 299mg/l Endpoint Test Duration (hr) Species Value Source EC50 Algae or other aquatic plants >114mg/l LC50 Fish >81.8mg/l pentafluoroethane EC50 Crustacea >97.9mg/l NOEC(ECx)

  • Page 165: Section 14 Transport Information

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders 13.1. Waste treatment methods Evaporate or incinerate residue at an approved site. Product / Packaging disposal Ensure damaged or non-returnable cylinders are gas-free before disposal. Waste treatment options Not Available Sewage disposal options...

  • Page 166: Section 15 Regulatory Information

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders Limited Quantities 120 mL Inland waterways transport (ADN) 14.1. UN number 1078 14.2. UN proper shipping REFRIGERANT GAS, N.O.S., such as mixture F1, mixture F2 or mixture F3 (contains argon, 1,1,1,3,3,3-hexafluoropropane and 1,1,1,3,3- name pentafluoropropane) 14.3.
  • Page 167 Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders ECHA SUMMARY Ingredient CAS number Index No ECHA Dossier argon 7440-37-1 Not Available Not Available Harmonisation (C&L Hazard Class and Category Code(s) Pictograms Signal Word Code(s) Hazard Statement Code(s) Inventory)

  • Page 168: Section 16 Other Information

    Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders National Inventory Status USA - TSCA Taiwan - TCSI Mexico - INSQ No (1,1,1,3,3-pentafluoropropane) Vietnam - NCI No (1,1,1,3,3,3-hexafluoropropane) Russia - FBEPH No (1,1,1,3,3-pentafluoropropane;...
  • Page 169 Chemwatch: 5366-71 Page Issue Date: 20/01/2021 Version No: 6.1.11.1 Print Date: 15/06/2021 INERT-HFC POLYCOLD® Refrigerant for Gas Cylinders BEI: Biological Exposure Index AIIC: Australian Inventory of Industrial Chemicals DSL: Domestic Substances List NDSL: Non-Domestic Substances List IECSC: Inventory of Existing Chemical Substance in China EINECS: European INventory of Existing Commercial chemical Substances ELINCS: European List of Notified Chemical Substances NLP: No-Longer Polymers...
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  • Page 171: Index

    ® Cryochiller  Polycold Service and Maintenance Manual Index Edwards Vacuum contact information i-ii contact information Electrical Hazards 2-12 2-13 Hazards electrical 2-12 2-13 notes Recycling 2-17 Technical Support contacting 185303 Revision E...
  • Page 172 ® Index Polycold Cryochiller Service and Maintenance Manual This Page Intentionally Left Blank 185303 Revision E...

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