User Manual PDF
Contents
1. Refer to the wiring diagram for details Programming Menus The controller uses a menu based programming format The menu levels are USER PID OPTION and SOFT START Each menu includes a series of parameters that customize the controller The menu structure and parameter descriptions are detailed in the instructions on reverse side of this sheet Inputs The controller accepts an input from a Thermocouple RTD or Analog signal Wire the input as shown in the wiring diagram The measurement PV for Process Variable is displayed on the controller s top LED readout in red Setpoint Value SV The Setpoint Value SV is the process application target value For example in an oven application the desired oven temperature is the SV This SV is changed adjusted as described in the operating instructions The SV is shown on the controller s lower LED display digits in green Control Outputs The control outputs C1 amp C2 are to be wired to an external control device such as a heater valve switch etc The controller automatically adjusts external devices to bring the Process Variable PV in line with the Setpoint Variable SV Available outputs are Relay Pulsed DC and 4 20mA Analog Output Tuning The controller must be tuned for every new application It is strongly recommended that user run the Auto Tune function AT Note that the controller must be wired and ready to go before Auto Tune is started Auto Tune optimizes the controller s re2. Band MERROR MESSAGE AND TROUBLESHOOTING Symptom Probable Soton Sensor break error Replace sensor Sensor not connected Check that the sensor is connected correctly Unit must be repaired or replaced A D converter damage Check for outside source of damage such as transient voltage spikes AEF Auto tune time out error Set Pb ti td manually Keypad not Keypad is locked Set Lo LE to an appropriate value functioning Keypad is defective Have unit repaired Process value unstable Improper setting of Pb Ti Td and Start AT process to set Pb Ti Td automatically Set Pb Ti Td manually No heater power or fuse open No heat or Check output wiring and fuse Output device defective or output Replace output device incorrect output used LEDs and No power to controller Check power lines connection display not l l SMPS failure Replace or repair meter lighting up Process Suppress arcing contacts in system to eliminate high Electromagnetic Interference Value voltage spike sources Separate the sensors and the EMI or Radio Frequency changed controller wiring from noisy power lines Ground Interference RFI abnormally heaters Entered EEPROM error Replace or repair meter data lost Controller Overview Controller Wiring The controller must be wired before use The controller s input outputs and AC power are connected via its rear terminals
3. Red digits for Process Variable PV and green digits for Setpoint Variable SV 1999 to 9999 0 2 full scale 1 digit 4 readings per second Front panel Alarm A1 and A2 and Control C1 and C2 status LED s inform the user when an output switches on or off PV display flashes PV displays OPEN when input terminals are disconnected Right most decimal on the PV display flashes while the controller is in the auto tune mode Stored in non volatile memory along with user parameter edits Case is ABS plastic and the front panel is drip and dust proof Lexan material NEMA and IEC IP55 equivalent 90 to 264VAC 50 60Hz automatically accommodates any voltage between 90 to 264VAC lt 5VA gt 50MQ Common Mode 120 dB Normal Mode 60 dB typical 14 to 122 F 10 to 50 C 90 Relative Humidity max 4 to 140 F 20 to 60 C Panel cut out dimensions 1 77 x 1 77 0 02 45 0 x 45 0mm 0 5mm for 48VFL 3 62 x 3 62 0 02 92 0 x 92 0mm 0 5mm for 96VFL Thermocouple Input Specifications Thermocouple TC types J K T E B R S N and C user programmable TC Break protect Lead wire effect Input impedance Repeatability Temperature stability TC Ranges Upscale and Downscale 0 015 ohm gt 10MQ 0 83 C 5uV C typical Type K 58 to 2498 F 50 to 1370 C Type J 58 to 1830 F 50 to 1000 C Type B 32 to 3272 F 0 to 1800 C Type T 454 to 752 F 270 to 400 C Type E 58 t
4. lt Alarm2 Re 24VDC Alarm1 REE Output2 JAAA E A E Output1 90 264VAC O 24VDC O SOc DJe WWiring Precautions 1 Before wiring verify the controller label for correct model number and options 2 For thermocouple input use the appropriate compensation wire And note the polarity of input signal 3 To avoid noise induction keep input signal wires away from instrument power lines load lines and power lines of other electrical equipment E PROGRAMMING LEVEL PARAMETERS E Ist Prog Level 2nd Prog Level 3rd Prog Level 4 Prog Level 5 Prog Level Caca A Fara A oP E m ae ioe ie amp coe Ue a el ae GE ae Ge 2 Ge ie he bAud en feki Lol When 2nd Output Cooling is not selected CPb gt Cti gt Ctd gt HYS2 and db parameters are not available When Pb 0 0 gt HYS1 will be skipped When CPb 0 0 gt HYS2 will be skipped When Pb 0 0 gt ti gt td will be skipped When CPb 0 0 gt Cti Ctd will be skipped MEPARAMETER DESCRIPTION LEVEL Selection Press fserl lt keys for at least 5 seconds to access Soft Level Use RJ lor FA lkey to select programming level Then press key to enter this level Pa Devel USER LEVEL CODE DESCRIPTION RANGE Default Alarm 1 set point value Timer set value while A1FU is set to 1999 9999 R ISP T on or T off the unit can be HH MM or MM LSS It dep
5. tampering and inadvertent programming changes Lol 0010 Only USER level is adjustable l 0100 o oon USER and PID levels are adjustable 0100 USER PID OPTI levels are adjustable 0101 USER SOFT PID OPTI levels are adjustable o101 0111 an parameters in all levels are unlocked 1000 0000 1001 0001 1010 0010 1011 0011 1100 0100 The only difference is that Output 2 is unlocked OPTION LEVEL CODE DESCRIPTION RANGE Input type selection tYPE RANGE C RANGE F 50 1000 58 1832 50 1370 58 2498 270 400 454 752 Eyre B 0 1600 32 3272 Reter to figure CR osio 32 3182 Unit of process value OL Degrees C OF Degrees F Enb Engineer units for linear input Decimal point selection 0000 No decimal point 000 0 0 1 resolution 00 00 0 01 resolution used for linear input only 0 000 0 001 resolution used for linear input only Output 1 control action r EVY Reverse action for heating d r Direct action for cooling ott emewcnteroatamay Mmm e lowest expected SV and PV display High limit of span or range Set the high limit higher than 2 temas neem ELE Software fite 00999 100 Time scale for timer alarm HHnnHours Minutes 00 00 99 59 00 00 nnSS Minutes Seconds None Hi Lo Alarm 1 function Refer to alarm section for details dif H dif L bd Hi If A1FU None the alarm function is cancelled bd Lo t on t oFF Alarm 2 function Refer
6. to alarm function section for detail none Hi Lo dif H dif L bd Hi bd Lo If A2FU None it means alarm fuction is cancelled t on t oFF none Stdy Herd Alarm 2 mode Refer to alarm mode section for details i St La kiii Addr Controller address For use with PC RS 485 interface address For use with PC RS 485 interface Baud rate 2 4k 2400bps 4 8k 4800 bps 9 6k 9600 bps ME 4 8k 19 2k 19200 bps 9 6k 19 2k Description Code Range Late Low Scale of Linear Input 1999 9999 199 9 999 9 a A ft ati High Scale of Linear Input 1999 9999 199 9 999 9 Sealing for Linear Input 1 Press and hold the UP and DOWN keys simultaneously for 5 seconds to access the LnLo parameter bAud 2 Adjust LnLo setting to correspond to the low scale after adjustment press key once to access LnHi 3 Adjust LnHi setting to correspond to the high scale after adjustment press key once to exit ALARM FUNCTION A1FU A2FU ALARM TYPE ALARM OUTPUT OPERATION a a Process high alarm Process low alarm Deviation high alarm SP ALSP e e er me SP ALSP ica ol ALSP SP SP ALSP ee Band low alarm LE eE A A PV SP ALSP SP SP ALSP et a PV ALARM MODE A1MD A2MD DESCRIPTION c Normal alarm mode When timer function is selected with the PV lt SV kii the timer function is disabled Standby mode When selected in any alarm function an alarm on Chay power up is prevented The
7. 5 of Full Scale ALARM Output Specifications Alarm relay outputs SPST dry contact relay can switch up to 3 Amps 110VAC for Resistive Loads Alarm modes Deviation Absolute and Band Alarms with dead band Hysteresis adjustment ANALOG Output Specifications Analog output 4 20mA DC Load limits 600Q max Programming Set Cycle Time Ct to 0 to enable the analog output Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies to sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limi
8. alarm is enabled only when the process value reaches the alarm set point Also known as Startup inhibit useful for avoiding alarm trips during startup Latch mode When selected the alarm output and indicator latch when the alarm occurs The alarm output and indicator will remain energized even if the alarm condition has been cleared unless the power to the meter is removed SELA Standby and latch mode LAEH WAUTOMATIC AND MANUAL OUTPUT CONTROL Automatic control is the normal mode of controller operation In automatic control mode the controller automatically adjusts the control output percentage using PID to bring the PV equal to the SV The PID parameters Pb Ti and Td can be automatically determine using the Auto Tune procedure Manual control allows the user to manually drive the output percentage from 0 0 to 100 0 To access the manual mode set the HAnc parameter to YES the right most decimal MA on the SV display will flash The oUEL parameter will then alternately display oUEL and the process value The output percentage can then be adjusted using the UP or DOWN keys To abort the manual control simply set HAnd to no WAUTO TUNE In order to automatically set the PID parameters in the PID level Pb proportional band ti integral time also known as reset and td derivative time also known as rate first adjust the controller s set point to a val
9. bs EXTECH INSTRUCTION MANUAL VEL Series PID Controllers MEFRONT PANEL DESCRIPTION 1 PV Process Value 2 SV Setting Value e Bid og 3 AT Auto tuning LED 4 MA Manual mode LED 5 A1 Alarm 1 LED 6 A2 Alarm 2 LED 7 C1 Control 1 LED 8 C2 Control 2 LED XQ ss lt IVJA EXTECH __ Process PID Controller __96VFL 1 SET KEY Press once to access the next programmable parameter Press and hold this key for 5 seconds to reset alarm timer 2 UP KEY Press to increase the set point or parameter value 3 DOWN KEY Press to decrease the set point or parameter value 4 SHIFT KEY Press the shift key for 5 seconds to execute Auto Tune process Yes 1 mode A Kf Pl To abort an Auto Tune process press and hold the shift key for 5 seconds 5 fser Al Press the SET and UP keys once to return the normal operation 6 LEVEL KEY Press the SET amp SHIFT keys simultaneously for 5 seconds to select programming level then press the SET key to enter this level 7 FA PY Press the UP amp DOWN keys simultaneously for 5 seconds to access LnLo amp LnHi parameters oni CUTOUT EXTECH Process PID Controller 96VFL ome u o m as as o om m w o m n Lonas oes an oo Units mm E WIRING DIAGRAM 48VFL 96VFL 0 90 264VAC O0 24VDC i Alarm2 Alarm1 x
10. ends on 00 00 99 59 the P tnE parameter Alarm 2 set point value Timer set value while A2FU is set to 1999 9999 A2SP tT on or T off the unit can be HH MM or MM SS It depends on 00 00 99 59 the P tnE parameter MO Auto tuning is disable YES Standard type auto tuning Autotune PV is compared wit SV during auto tuning YE SC Low PV type auto tuning a PV is compared with SV 10 FS during Auto tuning nO Disable the manual mode Manual control no HAnd YES Enable the manual mode vec oUEL Output percentage Adjustable when Hand is set to Yes 100 0 100 0 0 0 SOFT LEVEL Code Description s s Ci Range Default Ramp rate for the process value to limit an abrupt Change of process C min SSP Set point value of soft start LoLt Hilt O GUE Output percentage of soft start 0 0 100 0 PID LEVEL CODE DESCRIPTION C RANGE Defaut Pb Proportional band variable Set to 0 0 for ON OFF control mode 0 0 300 0 10 0 Integral time Reset This value is automatically calculated by activating the Autotune function If desired the user can later adjust this parameter to better suit the application When PB 0 0 0 3600sec this parameter will be not available When set to zero Pb amp td 0 for PD control Derivative Rate This value is automatically calculated by activating the Auto tune function If desired the user can later o adjust th
11. is parameter to better suit the application When PB 0 0 0 900sec this parameter will be not available When set to zero Pb amp td 0 for PI control Proportional cycle time of output 1 0 100sec 15 Proportional band variable for secondary control output cooling 0 0 300 0 Set 0 0 for ON OFF Integral time for secondary control output When PB 0 0 this CE parameter will be not available When set to zero Pb amp td 0 for 0 3600sec Derivative time for secondary control output When Pb 0 0 this Ed parameter will be not available When set to zero Pb amp ti 0 for 0 900sec PI control TCE propor oyowtineotoupt SSSS S dt CS SW HS 1 esterase tor ONOFF conworon oupa 0 2000 0 0 200 0 1 H52 iysteresis tor ONOFF contoton ut 0 2000 0 0 200 0 1 Rms wawessoam S800 Rens wseessotama O owo a Dead band value This defines the area in which output 1 and 1000 1000 100 0 100 0 output 2 are both active negative value or the area in which output 1 and output 2 are both inactive positive value SPoF Set point offset This value will be added to SV to perform control 1000 1000 0 a It mainly used to eliminate offset error during Pb control 100 0 100 0 4 Process value offset Permits the user to offset the PV indication 1000 2000 tl from the actual PV 100 0 200 0 Parameter lock This security feature locks out selected levels or single parameters prohibiting
12. o 1382 F 50 to 750 C Type R 32 to 3182 F 0 to 1750 C Type S 32 to 3182 F 0 to 1750 C Type N 58 to 2372 F 50 to 1300 C Type C 58 to 3272 F 50 to 1800 C RTD Input Specifications RTD type Platinum 1009 DIN or JIS RTD range 328 to 1202 F 200 to 650 C Break protection Up and down scale Lead wire effect 0 015 Ohm Repeatability 0 2 C Analog Linear Input Specifications Current Input 4 to 20mA DC 2 7Q input impedance Voltage Input 1 to 5V DC gt 10MQ input impedance Display range 1999 to 9999 digits Repeatability Within 1 digit Relay and Pulse DC Output Specifications Relay outputs SPST dry contact relays can switch up to 5Amps 110V AC or 24VDC for resistive loads only Pulsed DC outputs 0 to 24 VDC output drives resistive loads to 250Q max Control actions Indirect or reverse acting heating and direct acting cooling Control types ON OFF control with Hysteresis dead band Time proportioning control for relay or pulsed DC output Standard proportional output analog output Automatic tuning Push button activation Automatically tunes the proportional band and integral derivative times Manual Tuning Proportional Band Pb 0 0 to 300 0 of Full Scale Integral time or Reset Ti O to 3000 seconds includes anti reset wind up Derivative time or Rate Td 0 to 900 seconds Cycle Time 0 to 100 seconds set to 0 for 4 20mA output Hysteresis 0 0 to 25
13. sponse to exactly match the characteristics and dynamics of the process at hand Although auto tuning will be sufficient in most cases there may be times when manual adjustments are required Qualified personnel can Manually Tune the controller using the PID parameters in the PID Menu Level Note that improper tuning can cause sever process disturbances Use Auto Tuning when possible Again use Auto Tune whenever possible Alarm Outputs The controller has alarm output relays A1 amp A2 that can be used to switch on off a lamp sound a buzzer shut down a heater etc at a programmed alarm setpoint Refer to the discussion of Alarms on the main instruction page System Reset To revert all of the parameters to their original factory default settings press and hold the UP and DOWN arrow keys simultaneously while turning the controller ON Release the keys after the display switches on Security LOCK To lock the controller in order to avoid setpoint and program tampering refer to the information provided in this manual for the LOCK parameter Specifications General Specifications Display Display range Indicating accuracy Display update rate Output status indication Out of range indication No input indication Auto Tune indication Calibration data Meter construction Power requirement Power consumption Insulation Resistance Noise rejection Operating conditions Storage temperature Dual 7 segment 4 digit LED
14. ted to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product refer to the phone email and website information in the support box provided below Extech recommends that annual calibrations be performed to verify meter performance and accuracy Technical Support To contact Technical Support refer to the phone email and website information in the support box provided below Before contacting Extech please have the following information handy Detailed description of concern 7 Current settings of all controller programming menu levels Controller wiring diagram or schematic Documentation for the process to which the controller is connected description schematic wiring block diagrams etc Instruction manual for the controller Error messages from controller s display if any T Support line 781 890 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up
15. to the minute product information visit our website www extech com Extech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 Copyright 2007 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form
16. ue that closely approximates the application at hand Set the RE parameter to YE5 i for standard applications or 4 amp 52 for minimizing SV overshoot see diagram below The right most decimal point AT on the PV display will flash in Auto Tune mode This procedure will run two cycle oscillations After that the controller performs PID control with the learned PID value to verify the results Finally the PID values will be entered into the nonvolatile memory and then starts the Fuzzy enhanced PID control The auto tune process can last from several minutes up to two hours depending on the process in question A time out error will occur if the auto tune process can not be completed within two hours in this case try to set the PID parameters manually To abort an auto tune process simply set the RE parameter to NO a PV PV AT Yes 1 AT Yes 2 The controller can also be set to ON OFF PI PD and P control mode Set Pb 0 for ON OFF control mode Set ti 0 for PD control mode Set td 0 fro PI control mode and ti td 0 fro P control mode The Hysteresis dead band for ON OFF control operates as follows ON OFF SP HYS A SP HYST SP When the second control output output 2 is used the proportional band of output 2 and the dead band interact as detailed below Output Heating Cooling POPPE eee eee OOOO eee eee eee eeerrererer errr errr rrr errr rrrirrr rrr rerrrrrrryy PV Overlap
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