Sigma C4 Uživatelský manuál Strana 1

C4 Manual Rev 7.5.2SIGMA SYSTEMSMODELS C4 & CC-3.5 PROGRAMMABLE TEMPERATURE CONTROLLER / INTERFACEOPERATING & PROGRAMMING MANUALFirmware Versi

10C4 Manual Rev 7.5.21.2 General DescriptionUsing the model C4, temperature control is available manually from the frontpanel, by use of user entered

100C4 Manual Rev 7.5.29.5 Installation and Use of TTL Outputs and InputThe C4 has incorporated in it the abilityto receive one TTL signal and send tw

101C4 Manual Rev 7.5.2If the controller is equipped with internal solid state relay to control thecompressor, the output of the solid state relay is t

102C4 Manual Rev 7.5.23. Remove probe connections at the controller's rear terminal strip, J1-1 andJ1-4.4. Locate test points TP1 and TP6 (TP2 on

103C4 Manual Rev 7.5.29.7 Troubleshooting9.7.1 Servicing Considerations - Service WARNINGSWARNING: Sigma Systems C4 Controllers obtain power from t

104C4 Manual Rev 7.5.2train your users to use their finger to discharge the static potential they may haveaccumulated on something other than the C4 f

105C4 Manual Rev 7.5.2Explicit Program EndIf you are observing behavior that indicates that the controller is continuing tocontrol beyond the end of t

106C4 Manual Rev 7.5.2If you are having no success with bus communications, check to be certain thatthe correct bus (EIA-232 or GPIB IEEE-488) is sele

107C4 Manual Rev 7.5.2unlikely that a problem will cause a bad load, but it is possible and it’s the easiestproblem to fix, so try reloading first.Sta

108C4 Manual Rev 7.5.2Proportional term Setup parameter F0Integral term Setup parameter F10Differential term Setup parameter F11Note that you will

109C4 Manual Rev 7.5.2Before you change any of the PID terms in your C4, write down the existingvalues. It is not hard for inexperienced users to mak

11C4 Manual Rev 7.5.21.3 Custom Features / Interchangeability WARNINGEach Sigma Systems C4 Controller has been custom configured for the chamber orpl

110C4 Manual Rev 7.5.2There will always be some oscillation, but a proper setting of the integral termwill keep these oscillations very minor and with

111C4 Manual Rev 7.5.29.9 Displayed Messages and Errors TableDisplay Description Manual Section06.0 -30.5Program step display 6.1200 - 100cContro

112C4 Manual Rev 7.5.2res errWatchdog timer reset 3.7.1rs loadReady to upload firmware 3.2.2s1 -77.7Setpoint for probe 1 control 5.2sor or -

113C4 Manual Rev 7.5.2INDEX2 probe control ... 35Autostart mode ...

114C4 Manual Rev 7.5.2QC Query last command ... 64QE, QEA Query error/status string ...

115C4 Manual Rev 7.5.2Fail-safe System ... 34Firmware ...

116C4 Manual Rev 7.5.2WP Set PID constants ... 67PN Select active (control) probe ...

117C4 Manual Rev 7.5.2Local program example using the special commands ... 91Multiple in memory...

118C4 Manual Rev 7.5.2RS, RSA - Request status byte ... 61RS-232See EIA-232 ...

119C4 Manual Rev 7.5.2Shutdown conditionsInternal error ... 31Memory signature failed...

12C4 Manual Rev 7.5.21.5 C4 vs. CC-3 Differences (What’s New)1.5.1 Hardware & Stability ImprovementsThe new C4 introduces a number of new impro

120C4 Manual Rev 7.5.2The Differential Term ... 108The integral term...

13C4 Manual Rev 7.5.21.5.3 Firmware UploadsWhen new firmware is available for your C4, you can easily upload it into thecontroller using the controll

14C4 Manual Rev 7.5.21.5.7 Internal Error Shutdown ConditionsThe C4 monitors system health by keeping track of three additional areas;they are:Proces

15C4 Manual Rev 7.5.2However, when the change in the Setpoint is very small, this “start from thebeginning” search routine can search over such a wide

16C4 Manual Rev 7.5.21.5.13 Program Mode Step Insert & DeleteProgram steps may now be deleted from or inserted into programs.See Sections 6.5 &am

17C4 Manual Rev 7.5.21.5.18 Remote Mode EIA-232 Port InitializationThe CC-3 required that to use the EIA-232 port, the port had to be initialized bys

18C4 Manual Rev 7.5.21.5.22 Remote Mode Setup Parameter CommandsSC Set Correction (Calibration) for Probe ... See Section 7.6.1WP Set PID Con

19C4 Manual Rev 7.5.22. PHYSICAL DESCRIPTIONThe SIGMA SYSTEMS Model C4 Controller fits into an area 3.5" x 5.5" x 9.5"long. Connectio

C4 Manual Rev 7.5.2Copyright 1997, 1998Sigma Systems Corporation1817 John TowersEl Cajon, California 92020 USAAll rights reservedThe manual may be r

20C4 Manual Rev 7.5.2COOL indicator lights when cooling is active, typically during the time thecryogenic valve is open on cryogenically cooled units.

21C4 Manual Rev 7.5.2parameter F15. Likewise, at the end of a local or remotely controlled program,chamber blowers will continue to run, but heating

22C4 Manual Rev 7.5.22.2 Rear Panel ConnectionsAt the rear panel of the controller, a cable is provided to connect to the power,cooling solenoid, mec

23C4 Manual Rev 7.5.23. GENERAL OPERATION & ERROR CONDITIONS3.1 Startup Displays3.1.1 Model Number and Firmware Version Number DisplayThe C4 ide

24C4 Manual Rev 7.5.23.1.3 Serial Number DisplayThe controller serial number can be displayed at startup by pressing<DISP/CTRL> while the model

25C4 Manual Rev 7.5.23.2.1 Upgrading Firmware by PROM ReplacementBefore starting, be certain that you have a properly grounded antistaticsurface and

26C4 Manual Rev 7.5.2Use a DOS bootable diskette and a PC type computer to load the new firmwarethrough the C4's serial port. You can obtain the

27C4 Manual Rev 7.5.2uploads so that you can upload to one controller while connecting anddisconnecting the other.Starting the upload on the C4When th

28C4 Manual Rev 7.5.2When you have set the necessary parameters for your needs, you are ready to goto LOCAL, PROGRAM, or REMOTE mode.

29C4 Manual Rev 7.5.23.4 Fahrenheit OperationThe C4 can use either Celsius or Fahrenheit temperature scales. Celsius is thedefault mode. When the c

3C4 Manual Rev 7.5.2TABLE OF CONTENTS1. INTRODUCTION ... 91.1 Models C4 & CC-3.5 Explained ...

30C4 Manual Rev 7.5.23.5 System Operating (Temperature) RangeThe C4 controller operates within the limits of the system devices. There are 3pairs (l

31C4 Manual Rev 7.5.2“LO” indicates that the reported temperature was 20-50/C below the SystemOperating Range. “HI” indicates that the reported tempe

32C4 Manual Rev 7.5.2The Probe Out of Range Shutdown condition can be cleared by pressing<START/STOP> in Local or Program mode, by rotation the

33C4 Manual Rev 7.5.2The mode switch must be subsequently turned to the SETUP position to clear thedisplay and resume normal operations. Be sure you

34C4 Manual Rev 7.5.2U1 2.3C1 0U2 99C2 100The C4 will then calculate a new slope and offset for the entire probe curve. Alltemperatures reported by t

35C4 Manual Rev 7.5.2Some errors, especially those unique to the C4, are only defined in theError/Status String. In the event of one of these errors,

36C4 Manual Rev 7.5.2

37C4 Manual Rev 7.5.24. INTELLIGENT 2 PROBE CONTROL (Probe Averaging)(Not in this release. Available in next release, without charge. Contact Sigma

38C4 Manual Rev 7.5.24.1 How Intelligent 2 Probe Control functionsIntelligent 2 Probe Control takes advantage of the fact that increasing thetemperat

39C4 Manual Rev 7.5.2than cold, or visa versa. To properly protect your object you need to be able toconstrain the air temperature in the chamber (an

4C4 Manual Rev 7.5.23.2 Updating Firmware ... 243.2.1 Upgrading Firmware by PROM Replacement ... 25

40C4 Manual Rev 7.5.2air stream temperature, based upon this 60/ limit, would not be allowed todrop to -100/ until the UUT core temperature had reache

41C4 Manual Rev 7.5.25. LOCAL MODE ( Basic Operation )The C4 Local mode of operation provides simple control of the chamber orplatform through the f

42C4 Manual Rev 7.5.2probe mode, n can be 1 or 2 as the temperature display toggles between probe 1and probe 2 with each press of the Display Temperat

43C4 Manual Rev 7.5.24. Enter a setpoint temperature using the numeric, decimal point and signkeys. Numbers may be entered with a maximum of 1 decim

44C4 Manual Rev 7.5.25.4 Compressor Control (mechanically refrigerated unit control only)The compressor of a system employing mechanical refrigera

45C4 Manual Rev 7.5.26. PROGRAM MODEThe Program Mode allows more complicated front panel control than the LocalMode. The Program Mode allows a tempe

46C4 Manual Rev 7.5.2 6.1.1 Format of a Program StepFORMAT OF A STEPsubstep)))))),step )))0, * -----------data------------** *00.0 -TTT.T - temp (

47C4 Manual Rev 7.5.2Program step.substep Data Effect/Purpose05.0 78.0 Sets temp setpoint to 78°05.1 00.20 Sets ramp time to 20 minutes05.2 00.20 Se

48C4 Manual Rev 7.5.26.2 Clearing Program Memory (Reinitializing program steps)When the controller is shipped from the factory, all program steps are

49C4 Manual Rev 7.5.26.4 Entering or Changing a Program StepThere is no difference between entering a program step and modifying an existingone.To ch

5C4 Manual Rev 7.5.2Invalid Loop Count Error ... 50Setpoint Out of Range Error ... 506.8 Special Com

50C4 Manual Rev 7.5.26.6 Delete Program step1. Enter the step number to be deleted and press <DISP/CNTL>2. Press <CLEAR/ENTRY>.3. Pres

51C4 Manual Rev 7.5.26.7.1 Program Run Time Information/ConsiderationsWhen a program is running, the display shows the currently executing programste

52C4 Manual Rev 7.5.2No Probe 2 ErrorIf a program step calls for control by probe 2 when setup parameter F1 = 1(number of probes) the C4 will generate

53C4 Manual Rev 7.5.26.8 Special CommandsThere are special commands that use the substep data within a step for differentpurposes than normal. These

54C4 Manual Rev 7.5.2encountering the loop statement in step 7, then steps 1-6 will already have beenexecuted once and then again 5 more times as a fu

55C4 Manual Rev 7.5.2When the Probe (substep 4) is specified as 7, the program step turns the optionalload control port off. Substeps 0 - 2 are ignor

56C4 Manual Rev 7.5.2

57C4 Manual Rev 7.5.27. REMOTE MODERemote mode provides for control of the C4 from a remote computer or terminalusing either standard EIA-232 serial

58C4 Manual Rev 7.5.27.3 Command Summary (by functional group)System Information Queries See Section:QV Query Firmware Version 7.4.1QN Query Controll

59C4 Manual Rev 7.5.27.4 System Information Queries7.4.1 QV Query Firmware VersionThis command returns the current internal firmware release number

6C4 Manual Rev 7.5.27.7.8 TO & TF Turn Aux/Power Control Port On ... 727.7.9 QU Quit Controlling ...

60C4 Manual Rev 7.5.27.4.3 QR Query Controller Temperature RangeThis command returns the controller temperature range in ASCII text in thefollowing f

61C4 Manual Rev 7.5.27.4.5 QF, QFA Query Setup Parameter ValueThis command returns the current (SRAM) value of a setup parameter field. QFrequests

62C4 Manual Rev 7.5.2these working values in SRAM have modified by Remote Mode setup commands(See Section 7.6) they will not be the same as the non vo

63C4 Manual Rev 7.5.27.5 Operation Information Queries & Commands7.5.1 RS, RSA Request Status ByteThese commands retrieve the status byte. See

64C4 Manual Rev 7.5.27.5.2 RE, REA Request Error ByteThese commands retrieve the error byte.Note: The error byte and byte 00 of the Error/Status Str

65C4 Manual Rev 7.5.2Note: Byte 00 of this string is the same error byte that is available using RE andREA commands. Byte 01 of this string is the sa

66C4 Manual Rev 7.5.27.5.4 QC Query Last CommandThis command returns the last non-null command string sent to the controller. The returned string is

67C4 Manual Rev 7.5.27.5.7 PT Read TemperatureThis command is used to read the specified probe temperature. The format of thecommand is:PTn<CR&g

68C4 Manual Rev 7.5.27.6 Setup Parameter CommandsThe commands in this section allow a user to change the value of some of thesetup parameters that ar

69C4 Manual Rev 7.5.2Note: Software probe correction is done separately for each probe. The followingtable shows the U1, C1, U2, C2 setup parameter a

7C4 Manual Rev 7.5.29.8 Temperature Control (PID) Tuning & Problems... 105Adjusting for changing needs ...

70C4 Manual Rev 7.5.2where p = proportional term constant (integer)i = integral term constant (integer)d = differential term constant (integer)Example

71C4 Manual Rev 7.5.27.6.4 SL Set UUT Temperature LimitsThe SL command sets the lower UUT limit (setup parameter F27) and the upperUUT limit (setup

72C4 Manual Rev 7.5.27.7 System Operation Commands7.7.1 SI Select Immediate ModeThis command selects the immediate mode of operation. In immediate

73C4 Manual Rev 7.5.27.7.4 GT, GTF Go To TemperatureThis command instructs the controller to control to the setpoint specified in thecommand. Bit 4

74C4 Manual Rev 7.5.27.7.6 DL Delay (Dwell Interval)The DL command causes the controller to dwell at the setpoint for a specifiedinterval of time bef

75C4 Manual Rev 7.5.27.7.9 QU Quit ControllingThe QU command stops the C4 from controlling. All heating and cooling is turnedoff, the blowers are s

76C4 Manual Rev 7.5.27.8 Error and Status Reporting - OverviewThere are three sources for error and status information:The Status Byte CC-3 compatibl

77C4 Manual Rev 7.5.2Interval Complete, Setpoint Reached, and Error will trigger the SRQ if it isenabled. The Status Byte is replicated as byte 01 in

78C4 Manual Rev 7.5.2byte 01 (status byte replica), the first 32 bytes (256 bits) are “event triggered”. The second 32 bytes (256 bits) are “status” o

79C4 Manual Rev 7.5.2Error/Status String Bit DefinitionsByte 00 - Duplicate of Error Byte First Release Used00:0 Aux input TTL high (Door open with op

8C4 Manual Rev 7.5.2

80C4 Manual Rev 7.5.2

81C4 Manual Rev 7.5.28. SETUP MODESetup mode is entered by placing the mode switch in the right most position. Setup mode is used to modify operation

Field#Field PurposePermitted FieldValuesFactory Setting82C4 Manual Rev 7.5.210PID controller, Integral termTens of seconds required for I term effecte

Field#Field PurposePermitted FieldValuesFactory Setting83C4 Manual Rev 7.5.225Chamber/Platform LowerOperating Temperature Limit-200/C-327.9/FAs requir

84C4 Manual Rev 7.5.28.2 Changing the Value of a Setup FieldA field may be changed with the following procedure:1. Display the field to be changed u

85C4 Manual Rev 7.5.2Autostart is enabled, moving the mode from OFF to LOCAL will cause thecontroller to begin controlling to the last set local mode

86C4 Manual Rev 7.5.2ice water (0/C) and boiling water (100/C) when the display shows 2.3/C for the icewater and 99/C for the boiling water, the user

87C4 Manual Rev 7.5.2If the values entered do not comply with the rules as defined above, the displaywill show cor err . None of the data will have

88C4 Manual Rev 7.5.2

89C4 Manual Rev 7.5.29. APPENDIX9.1 Programming Examples & Notes9.1.1 Simple Local Program ExampleThe following temperature test routine uses b

9C4 Manual Rev 7.5.21. INTRODUCTIONThis manual describes the operating procedures for the Sigma Systems Models C4& CC-3.5 Controllers, microproc

90C4 Manual Rev 7.5.2StepNumberDisplayedStep .SubstepKeys to press Description of entry000.0CLEAR/ENTRY 45.2 ENTERGo to 45.2/C00.1CLEAR/ENTRY 5

91C4 Manual Rev 7.5.29.1.2 Using shortcuts to shorten program entry timeShortcuts can make program entry easier and faster if the program step memory

92C4 Manual Rev 7.5.2StepNumberDisplayedStep .SubstepKeys to press Description of entry000.0CLEAR/ENTRY 45.2 ENTERGo to 45.2/C00.1CLEAR/ENTRY 5

93C4 Manual Rev 7.5.29.1.3 Local Program Example Using the Special CommandsThe following temperature test routine uses program looping commands and t

StepNumberDisplayedStep .SubstepKeys to press Description of entry94C4 Manual Rev 7.5.2202.0CLEAR/ENTRY 11.5 ENTERGo to 11.5/C02.1CLEAR/ENTRY 15

StepNumberDisplayedStep .SubstepKeys to press Description of entry95C4 Manual Rev 7.5.2707.0DISP/CNTLAccept default value07.1DISP/CNTLAccept default v

96C4 Manual Rev 7.5.2Once you have set the program pointer to a step, you can enter new programinformation by following the procedure in Section 6.4 o

97C4 Manual Rev 7.5.29.3 Sigma Systems C4 Programming Worksheet(O.K. to copy)Date: Program Name: Page of StepSub-StepSubstepDataN

98C4 Manual Rev 7.5.29.4 Sample Command Structure for IEEE-488 GPIB OperationAll sample commands are written in BASIC for a Hewlett Packard 85F compu

99C4 Manual Rev 7.5.2GT - Go To TemperatureOUTPUT 701 "GT 85.0" orOUTPUT 701 "GT 85" orOUTPUT 701 "GT85"DL - D