MIC 1162 HIGH/LOW LIMIT CONTROLLER INSTRUCTION MANUAL E-89 PN 136107 REVISION 10-07
TABLE OF CONTENTS TABLE OF CONTENTS ................................................................................................... i SECTION 1: PRODUCT DESCRIPTION ....................................................................... 1 1.1 General................................................................................................................. 1 1.2 Displays ................................................................................................................ 1 1.3 Alarms ...
ii
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. E2 Technology (100 year life) protects against data loss during AC power outages.
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.
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. During re-installation, the vertically mounted circuit boards should be properly aligned in the housing.
FIGURE 2-1 Panel Cut-Out Dimensions FIGURE 2-2 Main Dimensions 4
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. 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. If possible, eliminate mechanical contact relay(s) and replace with solid state relays. If a mechanical relay being powered by an instrument output device cannot be replaced, a solid state relay can be used to isolate the instrument. 3.
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. Connection lead length should be kept as short as possible, keeping the wires protected by the shielding. The shield should be grounded at one end only.
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. For circuits from 3 to 5 amps, connect 2 of these in parallel. See Figure 2-5.
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.
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. The power consumption is approximately 4 VA. Connect the line voltage, hot and neutral, to terminals 9 to 10 respectively as illustrated below.
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. A jumper wire supplied by the customer must be installed between terminals 4 and 5. Input conditioning jumper must be positioned correctly (see Appendix A) and Hardware Definition Code must be correct (see Appendix B).
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.
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. FIGURE 2-15 Relay Output 3 (Alarm or Annunciator) Connections are made to Output 3 relay as illustrated below. The contacts are rated at 2 amp resistive, 120/240 VAC.
FIGURE 2-16 mADC Output 3 (Recorder Output Only) Make connections for DC output 3 as illustrated below.
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. Note: When power is first applied, a delay of about 3 seconds will be seen before the LEDs will light. 3.
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. 3.3.
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 deenergized, and when off, the relay is energized. EXCEED This indicator is on when the process variable exceeds the limit setpoint (above for high limit, below for low limit).
NOTE: The hysteresis limit value in the setup mode affects the value at which the control will reset. In the event of a high limit condition, the high limit setpoint must be higher than the sum of the process value and the hysteresis value. In the event of a low limit condition, the process value must be higher than the sum of the low limit setpoint and the hysteresis value. 3.6 Annunciator An additional (optional) annunciator output is available.
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 (Ctrl) SETPOINT CHANGE (SPC) CONFIGURATION SET-UP (ConF) (SEt) If a mode is not enabled it will be skipped over by the routine. The Setpoint Change mode is used to adjust the limit setpoint(s). The Configuration mode is used to configure or re-configure the instrument.
Ctrl SPC ConF SEt Return to main display SP or inPS HiHd SPHi ACt LoHd SPLo SPUL tLE SPLL iCor ALA1 Filt ALA2 Hyst USE2 PoU USE3 PoL CbS PHA1 CPAr PLA1 CAd PHA2 CJC PLA2 = SCROLL key = DOWN key Press UP key with upper display blank to exit mode. In Configuration Mode, the RESET key must be pressed to store any changed values.
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. Press the SCROLL key and the current setpoint will be shown in the upper display. Use the UP and DOWN keys to adjust the setpoint.
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. Use the DOWN key to enter the Configuration mode.
Table 6-1 Configuration Mode Parameters STEP DESCRIPTION 1 Input Range Select Limit Action Limit Maximum Limit Minimum Alarm 1 Type 2 3 4 5 6 7 8 9 10 11 12 1 2 3 DISPLAY CODE inPS AVAILABLE SETTINGS See App. C* ACt SPUL SPLL ALA1 Hi/Lo/Both +/- SPAN +/- SPAN nonE = No Alarm P_hi = Process High P_Lo = Process Low LiHi = High Limit LiLo = Low Limit Alarm 2 Type ALA2 Same selection as ALA1 2 Output 2 Usage USE2 AL_d = Alm1 Direct LA_r = Annunc. Reverse LA_d = Annunc.
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.
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. Use the UP and DOWN keys to adjust the parameter values.
STEP DESCRIPTION 18 Display Enable DISPLAY CODE diSP AVAILABLE SETTINGS 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 lower display. FACTORY SETTING 3 ** If configured for both high and low limit, pressing the up key while in control mode will display high limit setpoint.
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. For times greater than 999.5 the display will be HH.
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 – ECon – ESEt Pressing the SCROLL key will display the Enable mode codes with the upper display blank.
SECTION 9: CALIBRATION NOTE: Calibration should be attempted only on instruments on which calibration errors have been encountered (see calibration check). EQUIPMENT REQUIRED: 1. 2. Input source with accuracy better than +/- 0.05% of reading. a. Thermocouple: T/C simulator, K type with compensated leads b. DC: 0 to 50 mV 0 to 10 V 0 to 20 mA c. RTD: Decade resistance box with 3 wire input OR OR MIC1162 case wired for appropriate input voltage supply (90 to 264 VAC, 50/60 Hz) PROCEDURE: 1.
4. 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. 5. Use the UP/DOWN keys as required to change the input type number as required: CAL INPUT NO. INPUT TYPE 1 DC 0 - 50 mv 2 DC 0 - 10 V 3 DC 0 - 20 mA 4 RTD 5 Thermocouple NOTE: If required, only one input type may be calibrated.
CALIBRATION CHECK (See Configuration Mode, Appendix A, and Appendix B.) 1. Power up the instrument and allow to stabilize for at least 5 minutes (RTD and DC) or 30 minutes for T/C input. 2. After the stabilization period, connect the appropriate input device and check a number of input points.
APPENDIX A: BOARD LAYOUT - JUMPER POSITIONING FIGURE A-1 Exploded View & Board Layout 32
FIGURE A-2 CPU PWA 33
FIGURE A-3 OPTION PWA DC OUTPUT 2/OUTPUT 3 34
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.
While the Hardware Definition Code is displayed, depressing the SCROLL key will cause the display to change to: nonE or OPtn r485 or OPtn rrES 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. The code may be changed by pressing the UP and DOWN keys. The RESET key must be pressed when the correct code is displayed.
APPENDIX C: INPUT RANGE CODES The input ranges available (selectable via the front panel) are: TYPE INPUT RANGE R R S S J J J J J J T T T T K 0 - 1650°C 32 - 3002°F 0 - 1649°C 32 - 3000°F 0.0 - 205.4°C 32.0 - 401.7°F 0 - 450°C 32-842°F 0 - 761°C 32 - 1401 °F -200 - 262°C -328 - 503°F 0.0 - 260.6°C 32.0 - 501.O°F -200 - 760°C DISPLAYED CODE 1127 1128 1227 1228 1415 1416 1417 1418 1419 1420* 1525 1526 1541 1542 6726 TYPE INPUT RANGE K K K L L L L L L B B N N -328 -1400ºF -200 - 1373ºC -328 - 2503ºF 0.
APPENDIX D: SPECIFICATIONS INPUT SPECIFICATIONS General Input Sample Rate: Input Resolution: Input Impedance: Isolation: Four per second 14 bits approximately Greater than 100M ohm resistive (except for DC mA and V inputs) Universal input isolated from all outputs except SSR at 240 VAC.
OUTPUT SPECIFICATIONS OUTPUT 1 (Limit Relay) Relay Contact Type: Rating: Lifetime: Isolation: SPDT 5A resistive at 120/240V AC > 100,000 operations at rated voltage/current Inherent OUTPUT 2 (Alarm or Annunciator) Relay Contact Type: Rating: Lifetime: Isolation: SPDT 2A resistive at 120/240V AC > 500,000 operations at rated voltage/current Inherent OUTPUT 3 (Alarm, Annunciator, or Retransmit) General Types Available: Relay or DC linear (retransmit only) Relay Contact Type: Rating: Lifetime: Isolation:
Alarms Maximum Number: Maximum # Outputs: Combination Alarms: Two "soft" alarms Up to 2 outputs can be used for alarm purposes Logical OR or AND of alarms to an individual hardware output is available. PERFORMANCE Reference Conditions Ambient Temperature: Relative Humidity: Supply Voltage: Source Resistance: Lead Resistance: Common Mode Rejection Series Mode Rejection: DC Linear Inputs Measurement Accuracy: 20ºC ± 2ºC 60-70% 90-264V AC 50Hz ±1% <10 ohm for T/C input <0.
Operating Conditions Ambient Operating Temperature: Ambient Storage Temperature: Relative Humidity: Supply Voltage: Source Resistance: Lead Resistance: Temperature Stability: 0 to 55ºC -20 to 80ºC 20% - 95% non-condensing 90 - 264 VAC 50/60 Hz 1000 ohm maximum (thermocouple) 50 ohm per lead maximum balanced (Pt 100) 0.
APPENDIX E: ORDER MATRIX 1162 OUTPUT 1 1 Relay OUTPUT 2 0 None 1 Relay* OUTPUT 3 0 None 1 Relay 3 4-20 mA** OPTIONS 0 None 1 RS-485 2 Remote Reset SUFFIX Blank 02 None Line Voltage 24 V AC/DC * For alarm output only ** For retransmission only 42
APPENDIX F: SOFTWARE REFERENCE SHEET Hardware Definition HDW DEF OPTION Setting Configuration Mode inPS ACt SPUL SPLL ALA1 ALA2 USE2 USE3 CbS CPAr CAd CJC Setting Enable Mode ENAB ESP ECon ESEt Setting 43
Setup Mode HiHd LoHd tLE iCOR Filt Hyst Pou PoL PHAI PLAI PHA2 PLA2 dPoS Euu EuL CCon diSP Setting Setpoint Change Mode SP Setting SPHi SPLo 44
45
46
