Despatch MIC1422 Controller User Manual

i MIC 1422MIC 1422MIC 1422MIC 1422 MICROBASED CONTROLLERMICROBASED CONTROLLERMICROBASED CONTROLLERMICROBASED CONTROLLER INSTRUCTION MANUALINS

6 FIGURE 2-2 Main Dimensions MIC1422 FIGURE 2-3 Panel Mounting the Controller

7 2.2 Wiring Guidelines Electrical noise is a phenomenon typical of industrial environments. The following are guidelines that must be followed t

8 AC Power Wiring Neutral (For 115 VAC) It is good practice to assure that the AC neutral is at or near ground potential. To verify this, a voltme

9 Noise Suppression At The Source Usually when good wiring practices are followed no further noise protection is necessary. Sometimes in severe el

10 FIGURE 2-5 2.3 Sensor Placement (Thermocouple or RTD) Two-wire RTDs should be used only with lead lengths less than 10 feet. If the temperat

11 FIGURE 2-6 Wiring Label 1/4 DIN

12 2.4 Input Connections In general, all wiring connections are made to the instrument after it is installed. Avoid Electrical Shock. AC power w

13 FIGURE 2-7A 24V Nominal AC/DC Supply The supply connection for the 24V AC/DC option of the instrument are as shown below. Power should be conne

14 FIGURE 2-9 RTD Input Make RTD connections as illustrated below. For a three wire RTD, connect the resistive leg of RTD to terminal 1 and the co

15 FIGURE 2-11 Remote Digital Communications - RS485 Make digital communication connections as illustrated below. FIGURE 2-12 Remote Setpoint I

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16 FIGURE 2-13 Remote Setpoint Selection Connections are made as shown. FIGURE2-14 Dual Setpoint Selection Connections are made as shown.

17 2.5 Output Connections FIGURE 2-15 Relay Output 1 (Control Output 1) Connections are made to Output 1 relay as illustrated below. The contact

18 FIGURE 2-18 Relay Output 2 (Control Output 2 OR Alarm 2) Connections are made to Output 2 relay as illustrated below. The contacts are rated at

19 FIGURE 2-21 Relay Output 3 (Alarm 1) Connections are made to Output 3 relay as illustrated below. The contacts are rated at 2 amp resistive, 12

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21 SECTION 3: OPERATION 3.1 Control Capability The capabilities available in a specific unit are dependent upon the hardware options specified w

22 3.3 Direct/Reverse Operation of Outputs Direct operation is typically used with cooling applications. On-Off direct output(s) will turn on whe

23 When the unit is operating in the Control Mode, the control algorithm determines the output % required to correct for any difference between the

24 FIGURE 3-1 Proportional Band 1

25 3.7 Power Up Procedure Verify all electrical connections have been properly made before applying power to the instrument. If the instrument is

iii TABLE OF CONTENTS TABLE OF CONTENTS...iii SECTIO

26 UP KEY • Increase the displayed parameter value. • Increase setpoint. DOWN KEY • Decrease the displayed parameter value. • Decrease setpoi

27 SECTION 4: CONTROL MODE 4.1 Operation After the instrument has performed its power up self test, the Control Mode is active with the setpoint

28 4.3 Override Feature While the instrument is being used with either Dual Setpoint operation or Remote Setpoint operation, the Override feature

29 If a break is detected in the sensor circuit, the upper display will show: 4.6 Manual Control (Percent Output) Manual Control is not applica

30 4.7 Setup Modes The Setup Modes contain parameters which configure the instrument and affect how the control functions. To access the Setup Mod

31 SECTION 5: TUNE MODE 5.1 Tune Mode Description The Tune Mode contains parameters concerning tuning of the instrument. To access the Tune Mod

32 5.2 Manual Tuning Method 1. Cycle Time - Time Proportioning Outputs A. Adjusting the cycle time affects instrument operation 1. Shorter Cyc

33 Table 5-1 Tune Mode Parameters STEP DESCRIPTION DISPLAY CODE AVAILABLE SETTINGS FACTORY SETTING 1 Local Setpoint LSP +/- Setpoint Limits I

34 FIGURE 5-1 Proportional Band & Deadband/Overlap

35 SECTION 6: ALARM MODE 6.1 Alarm Mode Description The Alarm Mode contains parameters concerning process alarms. To access the Alarm Mode from

iv SECTION 7: TEST MODE ... 43 7.1 Test Mode Description .

36 Table 6-1 Alarm Mode Parameters STEP DESCRIPTION DISPLAY CODE AVAILABLE SETTINGS FACTORY SETTING 1 Alarm 1 Type ALA1 P-hi=Proc High nonE

37 FIGURE 6-1 Alarm Actuation

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39 FIGURE 6-2 Alarm Hysteresis

40 6.2 Loop Alarm Enable This parameter is the means by which the user can enable or disable the Loop Alarm. The Loop Alarm is a special alarm wh

41 6.4 Logical Combination of Alarms Two alarms may be combined logically to create an AND/OR situation. They may be configured for Reverse-acting

42 FIGURE 6-3 Asymmetrical Band Alarm

43 SECTION 7: TEST MODE 7.1 Test Mode Description The Test Mode allows manual control of the instrument outputs in order to test their operation

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45 SECTION 8: CONFIGURATION MODE 8.1 Configuration Mode Description The Configuration Mode contains parameters concerning output functions of th

1 SECTION 1: PRODUCT DESCRIPTION 1.1 General This instrument is a microprocessor based single loop controller capable of measuring, displaying an

46 STEP DESCRIPTION DISPLAY CODE AVAILABLE SETTINGS FACTORY SETTING 5 Output 2 Usage USE2 Out2=Control (opposite of Out1 action) Hy_r=Alm

47 * The Hardware Definition Code and input jumper configuration may need to be changed. See Appendices A and B. ** If Remote Setpoint Input has

48 8.2 Hardware Definition Code The Hardware Definition Code is used to represent the hardware installed (input type, Output 1 type, Output 2 type

49 The displayed code may be incremented/decremented using the UP/ DOWN keys as required. The maximum setting available is 4777. For example, the

50 NOTE: It is essential that this code is changed whenever there is a change to the instrument's hardware configuration (change of input/outp

51 SECTION 9: CALIBRATION MODE 9.1 Entering Calibration Mode To enter the Calibration Mode from Setup Mode: 1. Press the SCROLL key until CAL a

52 3. Enter Calibration Mode (Section 9.1). The upper display will then show Input Type Number, in the form: iP_I and the lower display will show:

53 9.3 Calibrating The Secondary Analog Input Equipment Required 1. DC linear input source (0 - 5 V and 0 - 20 mA) with an accuracy better than

54 6. To calibrate all inputs, repeat Steps 1 to 4 for each of the other input types (see Table 9-2) until all three secondary analog input types h

55 SECTION 10: ENABLE MODE 10.1 Enable Mode Description The Enable Mode controls access to the various modes available. To access the Enable Mo

2 1.2 Displays Each instrument is provided with dual displays and status indicators as shown in Figure 1 -1. The upper display (RED) displays th

56 Table 10-1 Enable Mode Parameters STEP DESCRIPTION DISPLAY CODE AVAILABLE SETTINGS FACTORY SETTING 1 Enable Setpoint Change ESP EnAb = Enabl

57 SECTION 11: PRE-TUNE MODE 11.1 Pre-Tune Mode Description The Pre-Tune Mode may be used to set the instrument's PID parameters to values

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59 SECTION 12: AUTOTUNE MODE 12.1 AutoTune Mode and Description The Auto-Tune Mode is used to optimize tuning while the instrument is operating.

60 New instruments supplied by the factory contain PID terms set at "DEFAULT" values which have been found to give adequate and safe contr

61 SECTION 13: RaPID FEATURE 13.1 RaPID Description The RaPID (Response assisted PID) range of controllers have been designed with a unique &quo

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63 APPENDIX A: BOARD LAYOUT - JUMPER POSITIONING FIGURE A-1 OUTPUT 2, OUTPUT 3 REMOVAL

64 FIGURE A-2 CPU PWA

65 FIGURE A-3 PSU PWA WITH RELAY OR SSR OUTPUT 1

3 FIGURE 1-1 Keys and Indicators 1.5 Process Variable/Setpoint Value Re-Transmission Output If the instrument is specified with this option, thi

66 FIGURE A-4 PSU PWA WITH DC OUTPUT 1

67 FIGURE A-5 OPTION PWA DC OUTPUT 2/OUTPUT 3

68 FIGURE A-6 JUMPER PLACEMENT FOR REMOTE INPUT TYPE

69 APPENDIX B: RANGE CODES The input ranges available (selectable via the front panel) are: For Thermocouple Inputs TYPE INPUT RANGE DISPLAYED CO

70 For DC Inputs Note: Input conditioning jumper LJ1, LJ2. or LJ3 needs to be changed, see Appendix A. INPUT RANGE DISPLAYED CODE 0-20mA 3413 4-2

71 APPENDIX C: RaPID CONTROL FEATURE The RaPID (Response - assisted PID) feature offers dramatic improvements in control quality compared with con

72 In conditions of frequent change in load characteristics, it is recommended that the Auto-Tune facility is used. Note: With Auto-Tune and RaPID

73 APPENDIX D: SPECIFICATIONS Input Specifications General Input Sample Rate: Four per second Input Resolution: 14 bits approximately In

74 Dual Setpoint Selection Input Type: Voltage free or TTL compatible Voltage Free Operations: Connections to contacts of external switch

75 To Select Remote Setpoint/ Setpoint 1: Minimum contact resistance (open): 5K ohms Minimum voltage for (TTL) for " 1 ": 2.0 V Maximum

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76 Output 2 General Types Available: Relay, SSR and DC Relay Contact Type: Single pole double throw (SPDT) Rating: 2A resistive at 120/240V A

77 DC Resolution: Eight bits in 250 mS (10 bits in 1 second typical, >10 bits in >1 second typical). Update Rate: Four times per second R

78 Alarms Maximum Number: Two "soft" alarms plus Loop Alarm* Maximum # Outputs: Up to 2 outputs can be used for alarm purposes Combina

79 DC Outputs Output 1 Accuracy: mA: 0 - 20mA ± 0.5% of span (20 mA) @250 ohm 4 - 20mA ± 0.5% of span (16 mA) @ 250 ohm V: 0

80 Performance Under Operating Conditions Temperature Stability: 0.01 % of span /degree C change in ambient temperature Cold Junction Compensation

81 APPENDIX E: SOFTWARE REFERENCE SHEET Tune Parameter Setting LSP rSP SP1 SP2 iCor Po1 Po2 Pb1 Pb2 ArSt rAtE rSEt HyS1

82 Alarm Parameter Setting ALA1 ALA2 Inhi (Alm 1 Value) AHy1 (Alm 2 Value) AHy2 LAEn LAti Enable Parameter Setting ESP EPrE

83 Configuration Parameter Setting InPS FiLt rinP CtL1 USE2 USE3 CbS CPAr CAd CJC dPoS Euu EuL SPuL SPLL rSPu rSPL

84 APPENDIX F: FLOW CHART OF OPERATION

85 APPENDIX G: MODEL NUMBER MATRIX

5 SECTION 2: INSTALLATION AND WIRING 2.1 Mounting Electrical code requirements and safety standards should be observed and installation performe

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