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MIC 1400 Manual

Edition 1

37

Current Proportioning Control 4.6

Current Proportioning control can be implemented on units provided with
mADC current output(s). Current Proportioning control provides a 4 to
20mADC or 0-20mADC output in response to process value and setpoint.
As with Time proportioning, the calculated output % for Current proportion-
ing is affected by the Tune mode parameter adjustments.

See Figure 4-1 (below) for proportional bandwidth effect on the output.

FIGURE 4-1

Output 1

Output 2

Output 2

Output 1

Proportional

Band 1

Pb1

Proportional

Band 2

Pb2

Deadband

(negative value)

SPrd

Process Variable

Output Power (%)

Output 1

Output 2

Output 2

Output 1

Proportional Band 1

Pb1

Proportional Band 2

Pb2

Overlap

(Positive value)

SPrd

Process Variable

Output Power (%)

Output 1

Output 2

Output 2

Output 1

Proportional

Band 1

Pb1

Proportional Band 2

Pb2 = 0

Overlap/Deadband

Sprd

Process Variable

Output Power (%)

ON/OFF

Differential

HyS2

Output 2 OFF

Output 2 ON

Positive values Negative values

Setpoint

Setpoint

Setpoint

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Содержание MIC 1400

Страница 1: ...MIC 1400 1 4 DIN MICROBASED CONTROLLER OPERATORS MANUAL FORM 3665 EDITION 1 OCT 1995 PRICE 10 00 Brand...

Страница 2: ...m by any means without the written permission of the Partlow Corporation This is the First Edition of the MIC 1400 manual It was written and produced entirely on a desk top publishing system Disk vers...

Страница 3: ...Control Capability 4 1 Control Capability 34 4 2 Control Responses 34 4 3 Direct Reverse Operation of Control Outputs 35 4 4 On Off Control 35 4 5 Time Proportioning Control 36 4 6 Current Proportioni...

Страница 4: ...15 Figure 2 12 Relay Output 1 16 Figure 2 13 SSR Driver Output 1 16 Figure 2 14 mADC Output 1 16 Figure 2 15 Relay Output 2 17 Figure 2 16 SSR Driver Output 2 17 Figure 2 17 mADC Output 2 17 Figure 2...

Страница 5: ...power supply 1 1 2 DISPLAYS Each instrument is provided with dual displays and status indicators as shown in Figure 1 1 The upper display displays the value of the process variable The lower display d...

Страница 6: ...ion 1 6 FIGURE 1 1 Keys and Indicators AUTO 1 1 5 PROCESS VARIABLE SETPOINT VALUE RE TRANSMISSION OUTPUT If the instrument is specified with this option this output may be scaled over any desired rang...

Страница 7: ...nsert the instrument incorrectly Recommended panel opening sizes are illustrated in Figure 2 1 After the opening is properly cut insert the instrument into the panel opening En sure that the panel gas...

Страница 8: ...2 2 Main Dimensions FIGURE 2 3 Panel Mounting the Controller Mounting Clamp Controller Housing Tongues on mounting clamp engage in ratchet slots on controller housing 96 mm 3 78 in 96 mm 3 78 in 100...

Страница 9: ...o 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 se...

Страница 10: ...minimum 6 inch space between the wires If wires must cross each other do so at 90 degrees This will minimize the contact with each other and reduces cross talk Cross Talk is due to the EMF Electro Mag...

Страница 11: ...may be added Inductive Coils MOV s are recommended for transient suppression in inductive coils connected in parallel and as close as possible to the coil See Figure 2 4 Additional protection may be...

Страница 12: ...ead lengths less than 10 feet If the temperature probe is to be subjected to corrosive or abrasive condi tions it should be protected by the appropriate thermowell The probe should be positioned to re...

Страница 13: ...to these terminals RTD 3 2 1 9 4 5 6 7 8 21 20 19 18 17 16 15 14 13 SSR DC N O C N C Relay OUTPUT 3 11 12 10 24 23 22 SSR DC N O C N C Relay OUTPUT 2 Thermocouple Linear V mV INPUT Linear mA MAINS LI...

Страница 14: ...IGURE 2 8 Thermocouple T C Input Make thermocouple connections as illustrated below Connect the positive leg of the thermocouple to terminal 2 and the negative leg to terminal 3 FIGURE 2 9 RTD Input M...

Страница 15: ...ust be positioned correctly see Appendix B and Hardware Definition Code must be correct see Appendix C mADC Input Make mADC connections as shown below Terminal 4 is positive and ter minal 1 is negativ...

Страница 16: ...1 relay as illustrated below The contacts are rated at 2 amp resistive 120 240 VAC FIGURE 2 13 SSR Driver Output 1 Connections are made to Output 1 SSR Driver as illustrated below The solid state rel...

Страница 17: ...illustrated below The contacts are rated at 2 amp resistive 120 240 VAC FIGURE 2 16 SSR Driver Output 2 Connections are made to Output 2 SSR Driver as illustrated below The solid state relay driver is...

Страница 18: ...d below The contacts are rated at 2 amp resistive 120 240 VAC FIGURE 2 19 SSR Driver Output 3 Connections are made to Output 3 SSR Driver as illustrated below The solid state relay driver is a non iso...

Страница 19: ...the self test procedure is complete the instrument reverts to normal operation Note A delay of about 3 seconds when power is first applied will be seen before the displays light up 3 1 2 KEYPAD OPERAT...

Страница 20: ...3 DISPLAYS During configuration the upper display shows the parameter setting The lower display shows the parameter code for the currently selected param eter During operation the upper display shows...

Страница 21: ...Indicates the state of the Output 1 relay or SSR driver When the indicator is ON the relay is energized or the SSR driver is ON OP2 Indicates the state of the Output 2 relay or SSR driver When the ind...

Страница 22: ...as the setpoint A setpoint ramp rate will be calculated to increase the setpoint from the initial process value to the setpoint selected The setpoint ramp feature disables the Pre Tune facility The Au...

Страница 23: ...r the Manual mode press the AUTO MANUAL key The Manual mode status LED will begin to flash indicating that the Manual mode is in use Shifting from the Control to the Manual mode is bumpless The pro po...

Страница 24: ...ge 24 25 for the Enable Mode procedure 3 2 2 PROGRAM MODE The Program mode is used to configure or re configure the instrument The input and output selections are made in the Program mode All pos sibl...

Страница 25: ...upper display blank then the parameter code with the param eter value displayed Use the UP and DOWN keys to adjust the parameter values After adjusting a parameter the upper display will flash indica...

Страница 26: ...e ALA2 Same selection as nonE ALA1 5 Output 2 Usage USE2 Out2 Control Out2 opposite of Out1 action LP_r Loop Reverse LP_d Loop Direct Ad_r Rev Logic AND Ad_d Dir Logic AND Or_r Rev Logic OR Or_d Dir L...

Страница 27: ...upper display blank then the parameter code with the parameter value displayed Use the UP and DOWN keys to adjust the parameter values After adjusting a parameter depress the SCROLL key to proceed to...

Страница 28: ...Reset 59 secs 10 Rate rAtE 0 sec to 99 mins 0 secs 59 secs 11 Overlap SPrd 20 to 20 of 0 Deadband Pb1 and Pb2 12 Manual Reset rSEt 0 to 100 Output 1 25 100 to 100 Out 2 13 Hysteresis Output 1 HyS1 0 1...

Страница 29: ...ime 64 128 256 512 secs 21 Process High PHA1 Span Span Max Alarm 1 22 Process Low PLA1 Span Span Min Alarm 1 23 Band Alarm 1 bAL1 0 to Span 5 24 Deviation dAL1 Span 5 Alarm 1 25 Process High PHA2 Span...

Страница 30: ...1000 Units Upper 33 Engineering EuL 1999 to 9999 0 Units Lower 34 Enable Pre EPtn 0 Disable 0 Tune 1 Enable 35 Enable Manual ESby 0 Disable 0 Control 1 Enable 36 Setpoint Ramp ESPr 0 Disable 0 Rate E...

Страница 31: ...e Since the Pre Tune mode is a single shot operation it will auto matically disengage itself once the operation is complete If the En able Pre Tune parameter in the Tune mode is enabled then a power i...

Страница 32: ...ntrol b Shorter life span of electromechanical components 2 Proportional Bandwidth A Proportional Bandwidth is the inverse of gain Increased Bandwidth Decreased Gain B Increase the Proportional Bandwi...

Страница 33: ...Reset A After making all other adjustments use if an offset exists between the setpoint and the process variable B If the process is 1 Below setpoint use a positive Manual Reset value 2 Above the setp...

Страница 34: ...strument model number Current proportioning control cannot be implemented if a current output was not ordered The available output types and quantity of each are as follows Type of Output Quantity Ava...

Страница 35: ...ect when Output 1 is selected as Reverse and Reverse when Output 1 is selected as Direct On Off Control 4 4 On Off control can be implemented with SPDT relay or SSR driver output s by setting the corr...

Страница 36: ...during a prescribed period of time when the process variable is within the propor tional band Ex Calculated output 40 Cycle time adjustment 32 seconds Output on time 4 x 32 12 8 seconds Output off ti...

Страница 37: ...ure 4 1 below for proportional bandwidth effect on the output FIGURE 4 1 Output 1 Output 2 Output 2 Output 1 Proportional Band 1 Pb1 Proportional Band 2 Pb2 Deadband negative value SPrd Process Variab...

Страница 38: ...nstrument in the Control mode press the UP key to raise the setpoint and the DOWN key to lower the setpoint Depressing the SCROLL key if setpoint ramping is enabled and if ramp rate is not OFF will ch...

Страница 39: ...adjusted in the range 0 0 ON OFF to 999 9 Default value is 5 0 Display code is Pb1 The function is illustrated in Figure A 1 page 49 Proportional Band 2 This parameter is the portion of the input spa...

Страница 40: ...f Output 2 to create an overlap positive values or a deadband negative values When Overlap Deadband 0 the Output 2 OFF edge of the Output 2 ON OFF hysteresis band coincides with the point at which Out...

Страница 41: ...put is reversed Process Output Lower Value This parameter defines the value of the retransmitted output process vari able or setpoint whichever is applicable at its minimum value for ex ample for a 0...

Страница 42: ...ues centered on the setpoint value If the process variable value is outside this band the alarm will be active This parameter may be adjusted from 0 to span from the setpoint The default value is 5 Th...

Страница 43: ...The default value is 5 Display code is bAL2 Deviation Alarm 2 Value This parameter applicable only if Alarm 2 is selected to be a Deviation High Low Alarm defines a value above positive value Deviatio...

Страница 44: ...Relay Off ALARM VALUE Deviation High Alarm direct acting positive value Deviation Low Alarm direct acting negative value Deviation High Alarm reverse acting positive value Deviation Low Alarm reverse...

Страница 45: ...he control output s When the process variable starts to change value in the correct sense or when the output comes below the limit the Loop Alarm is deactivated For PID control the Loop Alarm Time T i...

Страница 46: ...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 Ala...

Страница 47: ...Value Decimal Point Position 0 XXXX 1 XXX X 2 XX XX 3 X XXX The default value is 0 Display code is dPoS Direct Logic OR ALM flashes Relay On ALM Off Relay Off ALM flashes Relay On ALARM 1 VALUE ALARM...

Страница 48: ...reater than but not equal to Engineering Units Upper in which case the sense of the input is reversed Display code is EuL Pre Tune Enable Disable This parameter determines whether or not the instrumen...

Страница 49: ...wer Output 1 Output 2 Output 2 Output 1 Proportional Band 1 Pb1 Proportional Band 2 Pb2 Overlap Positive value SPrd Process Variable Output Power Output 1 Output 2 Output 2 Output 1 Proportional Band...

Страница 50: ...oning FIGURE B 1 PCB POSITIONS Front Panel top edge Power Supply PCB Output 3 Option PCB Relay SSR or DC Output Output 3 Jumpers DC Output only Output 2 Jumpers DC Output only RS485 Serial Communicati...

Страница 51: ...400 Manual Edition 1 51 FIGURE B 2 OUTPUT 2 OUTPUT 3 REMOVAL CPU PCB Top of Front Panel REAR VIEW OF UNHOUSED CONTROLLER Output 3 Option PCB Power Supply PCB Output 2 Option PCB Tongues become dis eng...

Страница 52: ...MIC 1400 Manual Edition 1 52 FIGURE B 3 CPU PWA LJ3 LJ1 LJ2 LJ3 Jumper Position RTD DC mV T C DC mA DC V Input Type LJ2 LJ1 IC6 None parked LJ3 LJ2 LJ1...

Страница 53: ...MIC 1400 Manual Edition 1 53 FIGURE B 4 PSU PWA WITH RELAY OR SSR OUPUT 1 LJ6 LJ4 LJ5 Jumper Position Relay Output Type LJ7 SK3 LJ6 TX1 SSR LJ7 LJ5 LJ4 LJ6 LJ7 Jumper Position...

Страница 54: ...MIC 1400 Manual Edition 1 54 FIGURE B 5 PSU PWA WITH DC OUTPUT 1 LJ8 LJ8 LJ9 Jumper Position DC 0 10V DC 0 5V DC 4 20mA Output Type LJ9 SK3 LJ8 LJ9 TX1 DC 0 20mA LJ9 LJ8...

Страница 55: ...MIC 1400 Manual Edition 1 55 FIGURE B 6 OPTION PWA DC OUTPUT 2 OUTPUT 3 LJ9 LJ8 LJ9 Jumper Position DC 0 10V DC 0 5V DC 4 20mA Output Type LJ8 LJ8 LJ9 DC 0 20mA LJ9 LJ8...

Страница 56: ...umber in the upper display and dEFn in the lower display where the first left most digit is input type 1 RTD Linear mV 2 Thermocouple 3 Linear DC mA 4 Linear DC V the second digit is Output 1 type 1 R...

Страница 57: ...ey While the Hardware Definition Code is displayed depressing the SCROLL key will cause the display to change to nonE or r485 OPtn OPtn Where nonE indicates the absence of the communications option an...

Страница 58: ...416 L 32 0 402 3 F 1816 J 0 450 C 1417 L 0 450 C 1817 J 32 842 F 1418 L 32 842 F 1818 J 0 761 C 1419 L 0 762 C 1819 J 32 1402 F 1420 L 32 1404 F 1820 T 200 262 C 1525 B 212 3315 F 1934 T 328 504 F 152...

Страница 59: ...JU1 needs to be changed see Appendix B Also the Hardware Definition Code for the input type must also be changed see Appendix C 0 20mA 3413 0 5V 4445 4 20mA 3414 1 5V 4434 0 50mV 4443 0 10V 4446 10 5...

Страница 60: ...set to OFF 0 power alarms operate as if the process variable has gone over range RTD and DC mV Type and Connection Three wire Pt100 Calibration Complies with BS1904 and DIN43760 Lead Compensation Auto...

Страница 61: ...ight bits in 250mS 10 bits in 1 second typical 10 bits in 1 second typical Update Rate Every control algorithm execution Ranges 0 20mA 4 20mA 0 10V and 0 5V Load Impedance 0 20mA 500 ohm maximum 4 20m...

Страница 62: ...nd outputs Changes between V and mA ranges also require JU movement OUTPUT 3 General Types Available Relay SSR and DC linear retransmit only Relay Contact Type SPDT Rating 2A resistive at 120 240V AC...

Страница 63: ...ntrol User selectable with bumpless transfer into and out of Manual control Cycle Times Selectable for 0 5s to 512s in binary steps Setpoint Range Limited by Setpoint Upper and Setpoint Lower limits S...

Страница 64: ...Note Reduced performance with Type B T C between 100 600 C 212 1112 F Linearization Accuracy Better than 0 2 C any point any 0 1 C range 0 05 C typical Better than 0 5 C any point any 1 C range Cold...

Страница 65: ...d Source Resistance 1000 maximum thermcouple Lead Resistance 50 per lead maximum balanced Pt100 PHYSICAL Dimensions 1 4 DIN front panel 96mm x 96mm 3 94 inches deep Mounting Plug in with panel mountin...

Страница 66: ...Order Matrix OUTPUT 1 1 Relay 2 SSRD 3 4 20 mA OUTPUT 2 0 None 1 Relay 2 SSRD 3 4 20 mA OUTPUT 3 0 None 1 Relay 2 SSRD 3 4 20 mA OPTIONS 0 None 1 RS 485 SUFFIX Blank None 02 24V AC DC For control outp...

Страница 67: ...MIC 1400 Manual Edition 1 67 Appendix G Software Reference Sheet HDW DEF OPTION Program Mode inPS Out1 ALA1 ALA2 USE2 USE3 CbS CAd CJC Enable Mode ENAB ON OFF EPro EtuN ESPC continued on next page...

Страница 68: ...MIC 1400 Manual Edition 1 68 Tune Mode SPrP SPrr Filt iCor Po1 Po2 Pb1 Pb2 ArSt rAtE SPrd rSEt HyS1 HyS2 HySt SPuL SPLL Pou PoL o1PL Ct1 Ct2...

Страница 69: ...MIC 1400 Manual Edition 1 69 Tune Mode PHA1 PLA1 bAL1 dAL1 PHA2 PLA2 bAL2 dAL2 LAEn LAti dPoS Euu EuL EPtn ESby ESPr CCon...

Страница 70: ...nses excepting only the cost or expense of repair or replacement as described above Products must be installed and maintained in accordance with Partlow instructions Users are responsible for the suit...

Страница 71: ...THE PARTLOW WEST COMPANY 2 CAMPION ROAD NEW HARTFORD NY 13413 USA 1 800 866 6659 315 797 2222 FAX 315 797 0403...

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