Despatch MIC 1162 Reference Manual
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Despatch MIC 1162 Reference Manual

1/16 din high/low limit controller
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REV. 4-99
E-89
P.N. 136107
MIC 1162
1/16 DIN HIGH/LOW LIMIT CONTROLLER
REFERENCE MANUAL
Copyright © 1999 by Despatch Industries

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Summary of Contents for Despatch MIC 1162

  • Page 1 REV. 4-99 E-89 P.N. 136107 MIC 1162 1/16 DIN HIGH/LOW LIMIT CONTROLLER REFERENCE MANUAL Copyright © 1999 by Despatch Industries...

  • Page 3: Table Of Contents

    APPENDIX A: BOARD LAYOUT - JUMPER POSITIONING......... 37 APPENDIX B: HARDWARE DEFINITION CODE ............41 APPENDIX C: INPUT RANGE CODES................. 43 APPENDIX D: SPECIFICATIONS................. 45 APPENDIX E: ORDER MATRIX..................49 APPENDIX F: SOFTWARE REFERENCE SHEET............51 Despatch Product Warranty..................53...

  • Page 5: Section 1: Product Description

    SECTION 1: PRODUCT DESCRIPTION 1.1 General This instrument is a microprocessor based single loop controller capable of measuring and displaying temperature, pressure, flow, and level from a variety of inputs. The control is configurable to be either high-limit, low-limit, or both types. Control functions, alarm settings and other parameters are easily entered through the front keypad.

  • Page 6: Process Variable/Setpoint Value Retransmission Output

    FIGURE 1-1 Keys and Indicators 1.4 Process Variable/Setpoint Value Retransmission Output If the instrument is specified with this option, this output may be scaled over any desired range and re-transmitted, through optional Output 3.

  • Page 7: Section 2: Installation And Wiring

    SECTION 2: INSTALLATION AND WIRING 2.1 General Information Electrical code requirements and safety standards should be observed and installation performed by qualified personnel. The electronic components of the instrument may be removed from the housing during installation. To remove the components, grip the side edges of the front panel and pull the instrument forward.
  • Page 8 FIGURE 2-1 Panel Cut-Out Dimensions FIGURE 2-2 Main Dimensions...

  • Page 9: Wiring Guidelines

    FIGURE 2-3 Panel Mounting the Controller 2.2 Wiring Guidelines Electrical noise is a phenomenon typical of industrial environments. The following are guidelines that must be followed to minimize the effect of noise upon any instrumentation. 2.2.1 Installation Considerations Listed below are some of the common sources of electrical noise in the industrial environment: •...

  • Page 10: Ac Power Wiring

    1. If the instrument is to be mounted in the same panel as any of the listed devices, separate them by the largest distance possible. For maximum electrical noise reduction, the noise generating devices should be mounted in a separate enclosure. 2.

  • Page 11: Use Of Shielded Cable

    This instrument has been designed to operate in noisy environments, however, in some cases even with proper wiring it may be necessary to suppress the noise at its source. 2.2.4 Use Of Shielded Cable Shielded cable helps eliminate electrical noise being induced on the wires. All analog signals should be run with shielded cable.
  • Page 12 FIGURE 2-4 Contacts - Arcing may occur across contacts when the contact opens and closes. This results in electrical noise as well as damage to the contacts. Connecting a RC network properly sized can eliminate this arc. For circuits up to 3 amps, a combination of a 47 ohm resistor and 0.1 microfarad capacitor (1 000 volts) is recommended.

  • Page 13: Sensor Placement (Thermocouple Or Rtd)

    2.3 Sensor Placement (Thermocouple or RTD) Two wire RTD's should be used only with lead lengths less than 10 feet. If the temperature probe is to be subjected to corrosive or abrasive conditions, it should be protected by the appropriate thermowell. The probe should be positioned to reflect true process temperature: In liquid media - the most agitated area In air - the best circulated area...

  • Page 14: Input Connections

    2.4 Input Connections In general, all wiring connections are made to the instrument after it is installed. Avoid electrical shock. AC power wiring must not be connected to the source distribution panel until all wiring connection procedures are completed. FIGURE 2-7A Main Supply The instrument will operate on 90-264V AC 50/6OHz main supply.
  • Page 15 FIGURE 2-9 RTD Input Make RTD connections as illustrated below. For a three wire RTD, connect the resistive leg of the RTD to terminal 6 and the common legs to terminals 4 and 5. For a two wire RTD, connect one leg to terminal 5 and the other leg to terminal 6 as shown below.
  • Page 16 FIGURE 2-11 Remote Digital Communications - RS485 Make digital communication connections as illustrated below. FIGURE 2-12 Remote Reset Connections are made as illustrated below for remote reset.

  • Page 17: Output Connections

    2.5 Output Connections FIGURE 2-13 Relay Output 1 Connections are made to Output 1 relay as illustrated below. The contacts are rated at 5 amp resistive, 120/240 VAC. FIGURE 2-14 Relay Output 2 (Alarm or Annunciator) Connections are made to Output 2 relay as illustrated below. The contacts are rated at 2 amp resistive, 120/240 VAC.
  • Page 18 FIGURE 2-16 mADC Output 3 (Recorder Output Only) Make connections for DC output 3 as illustrated below.

  • Page 19: Section 3: Operation

    SECTION 3: OPERATION 3.1 Power Up Procedure Verify all electrical connections have been properly made before applying power to the instrument. During power up, a self-test procedure is initiated during which all LED segments in the two front panel displays appear and all LED indicators are ON. When the self-test procedure is complete, the instrument reverts to normal operation.

  • Page 20: Displays

    3.3 Displays During configuration the upper display shows the parameter setting. The lower display shows the parameter code (tag name) for the currently selected parameter. During operation, the upper display shows the value of the process variable. The lower display shows the setpoint value. The operation display can be altered by the Display parameter in the Setup mode.

  • Page 21: Front Panel Indicators

    If the process variable attains a value lower than the input scale minimum, the upper display will show: If a break is detected in the sensor circuit, the upper display will show: 3.4 Front Panel Indicators OUT Indicates the status of the Limit Relay. When the indicator is on, the relay is de- energized, and when off, the relay is energized.

  • Page 22: Annunciator

    In order to reset the limit relay, the process value must not exceed the limit setpoint. Pressing the RESET key with the control in this state will reset the limit relay, and the OUT indicator will turn off. NOTE: The hysteresis limit value in the setup mode affects the value at which the control will reset.

  • Page 23: Section 4: Control Mode

    SECTION 4: CONTROL MODE The Control mode allows viewing of the control status and process variables. Other modes can be accessed by pressing the SCROLL key until the appropriate mode is displayed, then pressing the DOWN key. CONTROL SETPOINT CONFIGURATION SET-UP CHANGE (Ctrl)
  • Page 24 Ctrl ConF Return to HiHd inPS main display SPHi LoHd SPUL SPLo SPLL iCor = SCROLL key ALA1 Filt = DOWN key ALA2 Hyst USE2 Press UP key with USE3 upper display blank to exit mode. PHA1 In Configuration Mode, the RESET key must CPAr PLA1...

  • Page 25: Section 5: Setpoint Change Mode

    SECTION 5: SETPOINT CHANGE MODE To change the limit setpoint, the Setpoint Change Mode must be enabled (see Enable Mode). From the Control Mode, press the SCROLL key until SPC is displayed. Press the DOWN key to access Setpoint Change Mode. To change the high limit setpoint, press the DOWN key until SPHi* is displayed in the lower display with the upper display blank.

  • Page 27: Section 6: Configuration

    SECTION 6: CONFIGURATION All configurable parameters are provided in Table 6-1. This table illustrates the display sequence, parameter adjustment and factory setting for each step. Depression of the SCROLL key will cycle the display. To enter the Configuration mode, press and release the SCROLL key until ConF is displayed.
  • Page 28 Table 6-1 Configuration Mode Parameters STEP DESCRIPTION DISPLAY AVAILABLE SETTINGS FACTORY CODE SETTING Input Range inPS See App. C* 1420 Select Limit Action Hi/Lo/Both Limit Maximum SPUL +/- SPAN Span max. Limit Minimum SPLL +/- SPAN Span min. Alarm 1 Type ALA1 nonE = No Alarm P_hi...
  • Page 29 LOGICAL COMBINATION OF ALARMS Two alarms may be combined logically to create an AND/OR situation. They may be configured for Reverse-acting or Direct-acting. Either Output 2 or Output 3 may be assigned as Logical Outputs. Example: Logical OR of Alarm 1 with Alarm 2 Direct-Acting Reverse-Acting AL1 OFF, AL2 OFF: Relay OFF...

  • Page 31: Section 7: Set-Up Mode

    SECTION 7: SET-UP MODE To enter the Set-Up mode, press and release the SCROLL key until SEt is displayed. Use the DOWN key to enter the Set-Up mode. The “S” LED will light. Depress and release the SCROLL key to sequence through the parameters and their values, alternately showing the parameter code in the lower display with the upper display blank, then the parameter code with the parameter values in the upper display.
  • Page 32 STEP DESCRIPTION DISPLAY AVAILABLE SETTINGS FACTORY CODE SETTING Display Enable diSP 1 = Display Setpoint* 2 = Display Process Variable 3 = Display Process Variable** and Setpoint 4 = Display Blank * If configured for both high and low limit ,the high limit setpoint will be in the upper display and the low limit in the...
  • Page 33 TIME EXCEED This parameter is available to measure the amount of time that the limit is exceeded. This parameter is a read only parameter and is viewed in the Set-Up mode, display code tLE. The parameter will time in minutes and seconds from 0 to 99 minutes and 59 seconds. After this time the display will change automatically to indicate minutes and tens of seconds from 100.0 to 999.5.

  • Page 35: Section 8: Enable Mode

    SECTION 8: ENABLE MODE To enter the Enable mode, press and hold the SCROLL key. The display flashes for about 5 seconds, then returns to a normal display for about 5 more seconds, then displays EnAb. Release the keys, the display should show ESP. Pressing the DOWN key will display the Enable mode codes in the following sequence: ESP –...

  • Page 37: Section 9: Calibration

    SECTION 9: CALIBRATION NOTE: Calibration should be attempted only on instruments on which calibration errors have been encountered (see calibration check). EQUIPMENT REQUIRED: Input source with accuracy better than +/- 0.05% of reading. Thermocouple: T/C simulator, K type with compensated leads 0 to 50 mV 0 to 10 V 0 to 20 mA...
  • Page 38 Apply power to the instrument and within 30 seconds of power-up, press and hold the DOWN and SCROLL keys simultaneously for about 5 seconds. The upper display will show ip_1 and the lower display will show CAL. Use the UP/DOWN keys as required to change the input type number as required: CAL INPUT NO.
  • Page 39 CALIBRATION CHECK (See Configuration Mode, Appendix A, and Appendix B.) Power up the instrument and allow to stabilize for at least 5 minutes (RTD and DC) or 30 minutes for T/C input. After the stabilization period, connect the appropriate input device and check a number of input points.

  • Page 41: Appendix A: Board Layout - Jumper Positioning

    APPENDIX A: BOARD LAYOUT - JUMPER POSITIONING FIGURE A-1 Exploded View & Board Layout...
  • Page 42 FIGURE A-2 CPU PWA...
  • Page 43 FIGURE A-3 OPTION PWA DC OUTPUT 2/OUTPUT 3...

  • Page 45: Appendix B: Hardware Definition Code

    APPENDIX B: HARDWARE DEFINITION CODE The Hardware Definition Code is used to represent the hardware installed (input type, Output 2 type and Output 3 type); this must be compatible with the hardware actually installed. It can be accessed, with the instrument in Configuration mode, by simultaneously depressing the DOWN and SCROLL keys.
  • Page 46 While the Hardware Definition Code is displayed, depressing the SCROLL key will cause the display to change to: nonE or r485 or rrES OPtn OPtn OPtn Where none indicates the absence of the communications option and the remote reset option, r485 indicates the presence of the communications option, and rrES indicates the presence of the remote reset option.

  • Page 47: Appendix C: Input Range Codes

    APPENDIX C: INPUT RANGE CODES The input ranges available (selectable via the front panel) are: TYPE INPUT RANGE DISPLAYED TYPE INPUT RANGE DISPLAYED CODE CODE 0 - 1650°C 1127 -328 -1400ºF 6727 32 - 3002°F 1128 -200 - 1373ºC 6709 0 - 1649°C 1227 -328 - 2503ºF...

  • Page 49: Appendix D: Specifications

    APPENDIX D: SPECIFICATIONS INPUT SPECIFICATIONS General Input Sample Rate: Four per second Input Resolution: 14 bits approximately Input Impedance: Greater than 100M ohm resistive (except for DC mA and V inputs) Isolation: Universal input isolated from all outputs except SSR at 240 VAC.
  • Page 50 OUTPUT SPECIFICATIONS OUTPUT 1 (Limit Relay) Relay Contact Type: SPDT Rating: 5A resistive at 120/240V AC Lifetime: > 100,000 operations at rated voltage/current Isolation: Inherent OUTPUT 2 (Alarm or Annunciator) Relay Contact Type: SPDT Rating: 2A resistive at 120/240V AC Lifetime: >...
  • Page 51 Alarms Maximum Number: Two "soft" alarms Maximum # Outputs: Up to 2 outputs can be used for alarm purposes Combination Alarms: Logical OR or AND of alarms to an individual hardware output is available. PERFORMANCE Reference Conditions Ambient Temperature: 20ºC ± 2ºC Relative Humidity: 60-70% Supply Voltage:...
  • Page 52 Operating Conditions Ambient Operating Temperature: 0 to 55ºC Ambient Storage Temperature: -20 to 80ºC Relative Humidity: 20% - 95% non-condensing Supply Voltage: 90 - 264 VAC 50/60 Hz Source Resistance: 1000 ohm maximum (thermocouple) Lead Resistance: 50 ohm per lead maximum balanced (Pt 100) Temperature Stability: 0.01% of Span/ºC change in ambient PHYSICAL...

  • Page 53: Appendix E: Order Matrix

    APPENDIX E: ORDER MATRIX OUTPUT 1 Relay OUTPUT 2 None Relay* OUTPUT 3 None Relay 4-20 mA** OPTIONS None RS-485 Remote Reset SUFFIX Blank None Line Voltage 24 V AC/DC * For alarm output only ** For retransmission only...

  • Page 55: Appendix F: Software Reference Sheet

    APPENDIX F: SOFTWARE REFERENCE SHEET Hardware Definition Setting HDW DEF OPTION Configuration Mode Setting inPS SPUL SPLL ALA1 ALA2 USE2 USE3 CPAr Enable Mode Setting ENAB ECon ESEt...
  • Page 56 Setup Mode Setting HiHd LoHd iCOR Filt Hyst PHAI PLAI PHA2 PLA2 dPoS CCon diSP Setpoint Change Mode Setting SPHi SPLo...

  • Page 57: Despatch Product Warranty

    In the event Customer becomes aware of any defect in the applicable products, This Warranty shall be deemed valid and binding upon Despatch if and only if the Customer must immediately: (a) shut off fuel or energy supply (gas and electricity), Customer: (b) call for emergency assistance, if needed, and (c) notify Despatch Service.
  • Page 58 Call 800-473-7373. Immediate Service Response The key to an effective service program is response. Wherever your location, Despatch is only a phone call away. Our U.S. and Canadian customers can reach Despatch at 1-800-473-7373. Worldwide customers can call 1-612-781-5356 or FAX 1-612-781-5485.

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