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JC Systems 620A Reference Manual

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JC Systems Model 620A
EZ Reference Guide
This guide is a pictorial progression through the various display screens with basic
descriptions of each display field and brief definitions of each.
More detailed information on the JC Systems Model 620A manufactured by TMC
Services is also available in the Model 620A Manual.

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Summary of Contents for JC Systems 620A

  • Page 1 This guide is a pictorial progression through the various display screens with basic descriptions of each display field and brief definitions of each. More detailed information on the JC Systems Model 620A manufactured by TMC Services is also available in the Model 620A Manual.
  • Page 2 L1 & L2 – DEV Limit Alarm. Channel is out of programmed +/- DEV span. Each channel can be configured for the program to continue running or stop during alarm, and for the alarm display and output to reset manually or automatically. CH1 & CH2 share a common Logic low output from the 620A.
  • Page 3 Overview: Front Panel Keypad. NOTE: Keypad is fully functional for entry or change only in the LCL mode. Screens can be viewed but parameters can not be changed in RMT mode. RUN: Push to run a new program or resume a program after the Stop/Hold button is pushed. STOP/HOLD: STOPS the running program and HOLDS the parameter values, Setpoints, Events and Time.
  • Page 4 1 Main Menu Section 1 - The following section contains: Main Guide screen: Main Menu structure (w/o Item 4 details) Power on screen Pg 2 Run screen Run infor screen 1 Run info screen 2 Run info screen 3 Alarms POP, Range, Deviation Response to Dev Alarm and Config.

  • Page 5: Menu Guide

    The figure below (Figure X-X) highlights the Model 620A Menu Structure. POWER ON SCREEN When the Model 620A is turned on or the power is cycled the following display appears for 10 to 15 seconds during boot up. Firmware Version and Date: Please provide this information when contacting the factory regarding any issues with the Model 620A This information does not indicate the age of the instrument.
  • Page 6 RUN SCREEN This screen displays real time running information. The Main Menu is not available from the Run Mode. Pushing <Page Down> sequences the display through three Run Time Information screens (shown below). The information screens will time out after appx. 15 seconds and the display returns to the Run Screen. Line 1: Events Setpoint...
  • Page 7 RUN INFO SCREEN 2 CH1 HI CH2 Hi CH1 % Line 1: Limit Limit output Line 2: CH1 Lo CH2 Lo CH2 % Limit Limit output Line 3: PROG. MODE: CH1 PID SET IN USE 1 Channel STAG1 (SET 1) 2 Channel STAG2 (SET 2) FASTTRAC...
  • Page 8 Alarms Listings – What Alarms show Up P.OP - Probe Open: The control channels probe is disconnected, is defective, or has an open junction. The control channel will read properly when the problem is corrected. P.OP ACTION: The PV field of the control channel will display P.OP and the controller INC and DEC outputs will be disabled.
  • Page 9 The alarm field display flashes and the alarm output TB1-7 goes low. ALARM RESET ACTION: AUTOMATIC: If Stop during DEV is selected. The Model 620A will automatically resume operation. The alarm display and output will be automatically reset as soon and the out of limits condition has ended.
  • Page 10 Push <PAGE DOWN> to access the Main Menu. MAIN MENU Selection Menus The menu of the 620A controller has 6 major selection screens. In the next sections each of these major menu screens will be explained in detail. The major selection screens are broken down as follows: 1.
  • Page 11 Caution: You MUST select a starting step with a Step Type of Ramp/Soak. Pushing <RUN> on any other step type will cause the 620A to freeze on that step and not execute the program. You MUST select a program# that has a valid program in that program# location.
  • Page 12 Section 1-2 Change Current Values: Page 1 Change current value screen pages 1 & 2 Page 2 Change current value definitions.
  • Page 13 NEXT PGM: Program to execute when the current step time reaches zero. NEXT STEP: Starting step number of next program to execute. Push <RUN> after all desired changes are made. The Model 620A will continue running the selected step with the new parameter values.
  • Page 14 If the 1 deg rate of change is necessary then the TIME must also be changed to 60 min. prior to pushing <RUN>. SOAK STEP: If the setpoint is changed in a Soak step the 620A will make an immediate change to the new setpoint (zero time). The time remaining in the step clocks down.
  • Page 15 Section 1-3 – EDIT: Create new or edit existing programs in memory. 4 Programmer/Controller Configurations. Single Channel, Two Channel, FastTRAC Standard and FastTRAC PassTHRU. Push <STOP>, <RESET>, <PAGE DOWN> , <3> (to EDIT). There are six Step Types. Each Ramp/Soak type step has two edit pages. All other Step_Types have one edit page. RAMP/SOAK : Page 1 –...
  • Page 16 Page 2 – Ramp/Soak Step: FastTRAC Standard or PassTHRU Mode. Line 1: CH1 setpoint and Deviation Alarm value entry fields. Line 2: FastTRAC ThermoBoost Heat and Cool value entry fields. Line 3: Prog # and Step # fields. Step Time entry field. Time entered in HH : MM : SS.
  • Page 17 LOOP STEP: Nested Loop step. Line 1: Displays LOOP selected. Line 2: Select Step # to loop back to. Select # of loops. Up to 9999 Includes first pass. Line 3: Displays current Prog# & Step#. <PAGE UP> to page 1 of previous step. <PAGE DOWN>...
  • Page 18 GOTO_IF STEP: Conditional jump Line 1: Displays GOTO_IF selected. Line 2: Select the Prog# and Step# to GOTO if the jump condition is true when this step is reached. Conditional field. Select the true condition. Choices are: IN4 ON. Photo isolated input 4 is true (low) when this step is reached.
  • Page 19 FastTRAC & FastTRAC PassThru.: (Not Shown) When placed in the FastTRAC mode of operation and implementing the pantented ThermoBoost feature. The Model 620A provides the ability to accelerate the device under test to the programmed test temperature and offers exceptional product temperature control.
  • Page 20 Single Channel Profile: See graph on following page. In this example the 620A is in the single channel mode and operating as a temperature only system. The controller units are in degrees C and three events are assigned as: Circulator – event 1, heat – event 2 and cool – event 3.
  • Page 22 Section 1-4 Config-Tune-Calibrate From the Main Menu select Item 4 Push <4>. Section 4 - CONFIG-TUNE CALIBRATE 4-1 CONFIGURE PROGRAMMER 4-2 CONFIGURE CONTROLLERS 4-3 CALIBRATE INPUTS 4-4 CALIBRATE OUTPUTS Push <1> for CONFIG.PROGRAMMER <2> for CONFIGURE CONTROLLERS <3> for CALIBRATE INPUTS <4>...

  • Page 23: Computer Interface

    SECTION 4-1: CONFIGURE PROGRAMMER Push <1> from the CONFIG-TUNE-CALIBRATE Menu. Page 1: COMPUTER INTERFACE. Line 1: Display only Line 2: Select Interface Type. RS232 (not address sensitive) RS422 and Address # 488 and Address # (optional interface) Line 3: Select FRONT PANEL (LCL) or EXT_COMPUTER (RMT) EXT_RAMP_SOAK (RSR) Note: Unit must be in STP mode to make changes.
  • Page 24 Page 3: CH1 LIMITS: Line 1: Display only Line 2: Select CH1 limit assignment. CH1 PROCESS CH2 PROCESS CH2 SETPOINT Line 3: Enter Hi limit value Line 4: Enter Lo limit value. The CH1 limit output is off if values are cleared as shown above. Hi = 100 and LO = ----.
  • Page 25 Page 5: CH1 Deviation: Line 1: Display only. Line 2: Select action during CH1 DEV alarm. PROGRAM RUNS or PROGRAM STOPS Line 3: Display only. Line 4: Select CH1 alarm reset action. AUTOMATICALLY or MANUALLY Page 6: CH2 Deviation: Line 1: Display only. Line 2: Select action during CH2 DEV alarm.
  • Page 26 Page 8: ON INPUT #8 function. Selects immediate action when the photoisolated input # 8 is activated. Line 1: Display only. Line 2: Select programmer action. DO NOTHING, RUN PROG # STEP # or DISABLE CONTROLLER Input 8 is ignored. Page 8A Line 1: Display only.
  • Page 27 Page 9: POWER FAIL RECOVERY MODE. Three modes of recovering form a power failure are available. NORMAL, HOLD CURRENT VALUES and RUN PROG # STEP# Line 1: Display only. Line 2: NORMAL MODE selected. Line 3 & 4 INFORMATION When power is restored the unit will continue operation form the same prog, step number or manual mode conditions that were operating when power was lost.
  • Page 28 Page 10: SITE ELEVATION FOR RH/WB For relative humidity Wet Bulb/Dry Bulb calculations the elevation from sea level of the chamber is entered below and included in the calculation for direct % RH. Line 1 & 2: Display only. Line 3: Display only. Line 4: Enter elevation from sea level in feet.

  • Page 29: Access Code

    Line 4 of this screen contains the reference number for the access code in the unit. Contact Ideal Aerosmith and provide the Access Code Reference number and Model 620A. The reference number will be entered into a program that will provide the current code.
  • Page 30 Section 4-2 Configure Controllers: Page 1: Page 2: 4-2-1 & 4-2-2 Both Channels have the same configuration parameter selections. Line 1: Displays selected channel and UNIT’s Field. Use <SEL> to scroll through choices . DEG. C, DEG. F, RH/WB, LINEAR, RH VISALA, FT_PSIA15, FT PSIA20 LINE 2: Use <SEL>...
  • Page 31 Page 4: Compressor Timeout (MTO, and Lowpass Input filter. Line 2: Max setting to 59 min: 59 sec. Can be set for CH1, CH2 or both Line 4: Max setting 99.99 seconds. Factory setting 2.00 seconds MTO: Independent settings for CH1 & CH2 share a common output (A2225, TB1 pin 8) Either one or both channels can trigger the MTO.
  • Page 32 Section 4-2-3 Tune Controllers Each control channel has two independent sets of Dual (Inc & dec) PID tuning parameters. The tuning parameter screens are identical for all four sets with the exception of an additional screen and setting following the last page of CH1 set 2 & CH2 set 2. This screen allows the selection of set 2 for use whenever a default event is turned on.
  • Page 33 Page 4: Parameters 7 – 9 of 11. Line 2: Use only on very fast rate of change chambers. When the PV exceeds the SP by the ID_Band value. “Clips” the controllers s tored integ ral (I) value until the process stops moving. Line 3: Rate (D) reduces the output power based o the rate of change of the proce ss.
  • Page 34 Section 1-5 - MANUAL MODE & MANUAL % OUTPUT: There are two controller modes of operation, Programmer and Manual. Programmer: The controller receives it’s setpoint from a profile programmed in the Model 620A’s memory. Manual: The controller receives its setpoint directly via front panel or computer command entry.
  • Page 35 Manual Mode (single channel) With the cursor flashing on the CH1 mode push the <SEL> button. The Mode will change to Manual and the Dev field will appear. NOTE: When a channel is changed from Programmer to Manual mode, the decimal point in the setpoint field is changed to the lower case letter “m,”...
  • Page 36 Two Channel Mode: Move the cursor to the CH2 mode field and push <SEL> With both channels in Manual Mode move the cursor to the desired channels setpoint field and enter a setpoint. Pushing the <ENTER> button will enter the setpoint on the selected channel. The cursor will stay in the selected setpoint field.
  • Page 37 Manual % Output: The Model 620A “must” be in the two channel configuration. The Manual Percent Output feature allows you to set the selected controller’s time and power proportioning output to a fixed percentage. Accessing % Output page: 1 - From the Manual Mode screen select one or both controller channels for Manual CH1 selected for Manual 2 -Push <Page Down>.
  • Page 38 5 - Move the cursor to the Setpoint field and enter the desired fixed % output. 0 to 100 = 0-100% Increase 0 to -99 = 0-100% Decrease Time Proportioned outputs: The front panel LED and corresponding time proportioned controller output will turn On/Off for the selected % output based on the controller Cycle time for the selected function.
  • Page 39 Section 1- 6 - DELAY_START Page 1: ON/OFF Push <SEL> to advance to the next screen and turn on the Delsyed Start function. Page 2: Data Entry screen: Line 1: On/Off Line 2: instructions Line 3: Enter Prog#, step# and delay start time in HH : MM : SS.
  • Page 40 The Mode field displays “DLY” indicating the Delay Start function is active. Page 6: When the Delay Start timer expires the Model 620A will run the Program from the selected Prog# and Step #.
  • Page 41 DISRUPTED, ANDTHEMODEL 620A IS IN THE “RMT-RUN” MODE. If computer communications are lost while the Model 620A is running a program in the Remote (Ext. Computer) mode, the unit must be stopped prior to regaining Local (LCL) mode of operation.