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Future Design FDC-L91, User Manual

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Future Design FDC-L91 User Manual Download Page 42

Chapter 4 Application

Chapter 4 Application

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Temperature

Control

Limit Control

L

N

+

_

Rear View

Mechanical
Contactor

L91

Rear View

Reset
Button

Heater

42

Figure 4-1 Over Temperature Protection with Remote Reset

Figure 4-1 Over Temperature Protection with Remote Reset

UM L91-Rev 8

Summary of Contents for FDC-L91

Page 1: ...User s Manual User s Manual LIMIT L91 Microprocessor Based Limit Controller LIMIT L91 Microprocessor Based Limit Controller LSP1 PV OP1 HSP1 SP2 LOCK RESET OP2 FDC L91 LIMIT F C...

Page 2: ...ll shut down the equipment at a preset process condition in order to preclude possible damage to products or system It is strongly recommended that a process should incorporate a LIMIT like L91 which...

Page 3: ...ing 2 10 Output 1 Wiring 2 11 Output 2 Wiring 2 12 RS 485 Chapter 3 Programming Chapter 3 Programming 3 1 Process Input 3 2 Limit Control 3 3 Setpoint Range 3 4 PV Shift 3 5 Digital Filter 3 6 Process...

Page 4: ...2 5 Thermocouple Input Wiring Figure 2 6 RTD Input Wiring Figure 2 7 Linear Voltage Input Wiring Figure 2 8 Linear Current Input Wiring Figure 2 9 Event Input Wiring Figure 2 10 Output 1 Wiring Figure...

Page 5: ...iversal input which is fully programmable for RTD PT100 thermocouple types J K T E B R S N L 0 60mVolt Volt and Milliamps An optional second output is available for one of the following functions alar...

Page 6: ...C 50 60 HZ 5 11 26 VAC or VDC 9 Special Order 1 Standard Input Thermocouple J K T E B R S N L RTD PT100 DIN PT100 JIS mV 0 60 mV 2 Voltage 0 1 V 3 Voltage 0 10 V 4 Current 0 20mA 4 20mA 9 Special Orde...

Page 7: ...d Display Note The programming port is used for off line setup and calibration procedures only Do not attempt to make any connection to these jumpers when the unit is on line Port is for bench setup o...

Page 8: ...will occur If the unit subsequently goes into a state where reset is required again the RESET key or remote reset contacts must be released opened and pressed closed again UNLOCK KEY 4 seconds Press t...

Page 9: ...e characters are displayed differently Table 1 1 Display Form of Characters Table 1 1 Display Form of Characters A E I N S X B F J O T Y C G K P U Z c H L Q V D h M R W DISPLAY FORM DISPLAY FORM 9999...

Page 10: ...splay Date Code for 1 second The left diagram shows Year 2001 Month February 2 Date 25 th This means that the product is produced on February 25 th 2001 Note that the month code is for is for and is A...

Page 11: ...unit has been used for 23456 7 hours since production Figure 1 3 Power Up Sequence Figure 1 3 Power Up Sequence 11 LSP1 PV OP1 HSP1 SP2 LOCK RESET OP2 FDC L91 LIMIT LF LF LC LC LSP1 PV OP1 HSP1 SP2 L...

Page 12: ...lter time constant Output 1 function Output 1 hysteresis value Lower limit of HSP1 Lower limit of LSP1 Upper limit of HSP1 Upper limit of LSP1 Output 2 function Address for digital communication Baud...

Page 13: ...t 1 relay will be energized and OP1 indicator will go off If the process goes above the high limit set point the relay will be de energized the OP1 indicator will go on and the display will show the p...

Page 14: ...rocess goes below the low limit set point the relay will be de energized the OP1 indicator will go on and the display will show the process value After the process rises above the low limit set point...

Page 15: ...oes above the high limit set point or below the low limit set point the relay will be de energized the OP1 indicator will go on and the display will show the process value After the process is within...

Page 16: ...on Set point 2 Value for Output 2 Low HSP L High HSP H Low LSP L High LSP H See Table 6 1 100 0 C 212 0 F 0 C 32 0 F 90 0 C 194 0 F 0 J type thermocouple 1 K type thermocouple 2 T type thermocouple 3...

Page 17: ...r Notation Parameter Description Range Default Value INPT Input Type Selection 1 0 0 1 17 UNIT RESO Process Unit Display Resolution 0 Degree C unit 2 Process unit 1 Degree F unit 0 No decimal point 1...

Page 18: ...ILT PV Filter Time Constant 3 1 second time constant 0 0 second time constant 4 2 seconds time constant 5 5 seconds time constant 6 10 seconds time constant 7 20 seconds time constant 8 30 seconds tim...

Page 19: ...00 0 C 1832 0 F 100 0 C 148 0 F OUT 2 Output 2 Function 5 Event input 0 No function 1 DC power supply output 2 RS 485 Communication 3 Alarm output ADDR Address Assignment of Digital COMM Low 1 High 25...

Page 20: ...t odd parity 2 8 bit none parity 0 5 9 6 Kbits s baud rate 3 2 4 Kbits s baud rate 4 4 8 Kbits s baud rate 2 1 2 Kbits s baud rate AOFN Analog Output Function 0 Process value 1 High Limit Set point 1...

Page 21: ...E 2 Remote lock for the unit 1 Remote reset for output 1 output 1 on 0 No event function 0 DISP Normal display format 0 PV HI Historical Max value of PV Low 19999 High 45536 PV LO Historical Min value...

Page 22: ...xcessive moisture Do not use this instrument in areas under hazardous conditions such as excessive shock vibration dirt moisture corrosive gases or oil The ambient temperature of the areas should not...

Page 23: ...eded It is recommended that power of these units to be protected by fuses or circuit breakers rated at the minimum value possible All units should be installed inside a suitably grounded metal enclosu...

Page 24: ...commend the use of shielded thermocouple extension wire which connects the sensor to the unit This wire is a twisted pair construction with foil wrap and drain wire The drain wire is to be attached to...

Page 25: ...round Local requirements regarding electrical installation should be rigidly observed Consideration should be given to prevent from unauthorized person access to the power terminals Proper sensor inst...

Page 26: ...0 75 of sensed temperature half that for special plus drift caused by improper protection or an over temperature occurrence This error is far greater than controller error and cannot be corrected at...

Page 27: ...ility of lead resistance compensation provided that the three leads are of same gauge and equal length 2 7 RTD Input Wiring 2 7 RTD Input Wiring Two wire RTD should be avoided if possible for the purp...

Page 28: ...2 7 Linear Voltage Wiring Input Figure 2 7 Linear Voltage Input Wiring Figure 2 8 Linear Current Wiring Input Figure 2 8 Linear Current Input Wiring 0 60mV 0 1V 0 5V 1 5V 0 10V 0 60mV 0 1V 0 5V 1 5V...

Page 29: ...r signal The event input function EIFN is activated as the switch is closed or an open collector or a logic signal is pulled down Open Collector Input Open Collector Input Switch Input Switch Input 1...

Page 30: ...ter Load Three Phase Delta Heater Load No Fuse Breaker No Fuse Breaker Contactor 120V 240V Mains Supply 120V 240V Mains Supply Three Phase Heater Power Three Phase Heater Power To Controller Output To...

Page 31: ...Relay or Triac Output 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 LOAD _ SSR 120V 240V Supply Pulsed Voltage to Drive SSR Pulsed Voltage to Drive SSR Sensor or Transmitter DC Power Supply Output DC Pow...

Page 32: ...Max 247 units can be linked SNA10A or SNA10B RS 485 to RS 232 network adaptor TX1 TX2 PC RS 232 TX2 TX1 RS 485 Twisted Pair Wire Figure 2 12 RS 485 Wiring Figure 2 12 RS 485 Wiring UM L91 Rev 8 2 13...

Page 33: ...scale value for the Linear type input IN LO IN HI Selects the high scale value for the Linear type input IN HI Hidden if T C or RTD type is selected for INPT Hidden if Hidden if T C or RTD type is sel...

Page 34: ...lue The hysteresis value is adjusted to a proper value to eliminate the relay jitter in a noisy environment O1 HY 3 3 Set Point Range 3 3 Set Point Range HSP L Lower limit of HSP1 Hidden if LO is sele...

Page 35: ...l Filter 3 5 Digital Filter In certain applications the process value is too unstable to be read To Improve this a programmable low pass filter incorporated in the L91 can be used This is a first orde...

Page 36: ...ese are normal alarm and latching alarm Normal Alarm AL MD NORM When a normal alarm is selected the alarm output is de energized in the non alarm condition and energized in an alarm condition Normal A...

Page 37: ...eeds Process proceeds 3 7 RS 485 Communication 3 7 RS 485 Communication Using a PC for data communication is the most economic way The signal is transmitted and received through the PC communication P...

Page 38: ...low limit control OUT1 HI LO or indicate LSP1 value for low limit control OUT1 LO IF SAFE is selected the display will indicate the word SAFE for the normal condition However the display will indicate...

Page 39: ...ly Application 1 2 3 4 5 6 7 8 9 10 V or mA Three line Transmitter or sensor Three line Transmitter or sensor 1 2 3 4 5 6 7 8 9 10 Bridge Type Sensor Bridge Type Sensor Caution Don t use the DC power...

Page 40: ...EIFN EIFN REST Remote Reset 1 2 3 4 5 6 7 8 9 10 Figure 3 6 Remote Reset Application Figure 3 6 Remote Reset Application 3 11 Remote Lock 3 11 Remote Lock If EIFN is selected for OUT2 and LOCK is sel...

Page 41: ...a contained in setup menu The reference data are read only data The maximum historical PV displayed by which shows the maximum process value since the last UNLOCK operation The minimum historical PV d...

Page 42: ...9 10 1 2 3 4 5 6 7 8 9 10 Temperature Control Limit Control L N _ Rear View Mechanical Contactor L91 Rear View Reset Button Heater 42 Figure 4 1 Over Temperature Protection with Remote Reset Figure 4...

Page 43: ...or recommended with following function 0 100mA millivolt source with 0 005 accuracy 0 10V voltage source with 0 005 accuracy 0 20mA current source with 0 005 accuracy 0 300 ohm resistant source with 0...

Page 44: ...4 seconds Step 4 4 seconds Step 5 4 seconds Step 6 4 seconds Figure 5 1 Flow Chart for Manual Calibraton Figure 5 1 Flow Chart for Manual Calibraton Step1 Calibrate of A to D converter Short terminal...

Page 45: ...mpensation Send a 0 00 C signal to the unit under calibration Calibrator K TC K K NOTE The unit under calibration is powered in a still air room at a temperature Allow at least 20 minutes for warming...

Page 46: ...t If the display didn t blink then the calibration failed UM L91 Rev 8 The L91 being calibrated for Cold Junction Compensation MUST be programmed for K t c input Celsius display to performing the CJG...

Page 47: ...R Input Resolution Sampling Maximum Rating Temperature Effect Sensor Lead Resistance Effect Burn out Current Common Mode Rejection Ratio CMRR Sensor Break Detection Sensor open for TC RTD and mV input...

Page 48: ...C 1370 C 328 F 2498 F 48 Characteristics Type Range Input Impedance Input Impedance J 120 C 1000 C 184 F 1832 F 120 C 1000 C 184 F 1832 F K T E B 2 2 M 2 2 M 2 2 M 2 2 M 2 2 M 2 2 M 2 2 M 2 2 M 2 2 M...

Page 49: ...nstalled at Output 2 DC Voltage Supply Characteristics Installed at Output 2 Type Tolerance Max Output Current Max Output Current Ripple Voltage Ripple Voltage Isolation Barrier Isolation Barrier 20 V...

Page 50: ...l Weight 150 grams 50 User Interface 4 digit LED Displays keypad Programming Port Communication Port 0 4 10mm 4 keys For automatic setup calibration and testing Connection to PC for supervisory contro...

Page 51: ...ses excepting only the cost or expense of repair or replacement of Future Design Control products as described below Future Design Controls sole responsibility under the warranty at Future Design Cont...

Page 52: ...LIMIT FDC L91 Microprocessor Based Limit Controller LIMIT FDC L91 Microprocessor Based Limit Controller UM L91 Rev 8...

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