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SR90 User Manual

1.
2. Screen No Parameter Item screen display Initial value Setting Selection 0 0 Basic screen 0 a a 0 1 Output 1 monitor 0 2 Output 2 monitor 0 3 AT action At AE ofr 0 4 Event set value setting ElHd E Hg 2000 units 0 5 Event 2 set value setting E2Hd E CH 1999 units 0 6 Set value bias setting Sb Sh 0 units 1 0 Initial screen PArA PA A SEE 1 1 Keylock setting KLc HL ore 1 2 Output 1 proportional band setting P F ad 1 3 Output 1 hysteresis dF GF 20 units 1 4 Output integral time l C7 ea 1 5 Output 1 derivative time d 2 3a 1 6 Output 1 manual reset mr Ar aa 1 7 Output 1 target value function SF SF avd 8 Output 1 lower limit output limiter o L oL ao 1 9 Output 1 higher limit output limiter o H H aad 10 Output 1 proportional cycling time oC L Y 30 P 3 11 Output 2 proportional band setting P2 fe a 1 12 Output 2 hysteresis dF2 dF 20 units 1 13 Output 2 integral time 12 fe ea 1 14 Output 2 derivative time d2 de aa 1 15 Output dead band db2 dbg 0 units 1 16 Output 2 target value function SF2 SFS cud 1 17 Output 2 lower limit output limiter o L2 o_ ie ao 18 Output 2 higher limit output limiter o H2 g _ He Cag 1 19 Output 2 proportional cycling time o C2 o Le Y 30 P 3 1 20 Event 1 type El m _A H
3. 1 2 Output 1 propotional band P setting screen 1 10 Output 1 proportional cycling time setting screen Initial value 3 0 an a L Initial value Contact output 30 seconds 30 Setting range OFF 0 1 999 9 30 SSR drive voltage output 3 seconds tu ee Setting range 1 120 seconds Basically setting of this item is not necessary for the execution of Proportional cycling time of control output 1 is set O auto tuning For proportional band refer to Section 6 4 1 The screen is not displayed for voltage or current output To change to ON OFF two position action select OFF For proportional cycling time refer to Section 6 7 1 3 4 Output 1 hysteresis setting screen 1 11 Output 2 OUT2 proportional band P setting screen de Initial value 20 units a SG a i Initial value 3 0 29 Setting Tonge 1 5 999 units p f a 7 Setting range OFF 0 1 999 9 Aaf Set the Hysteresis of ON OFF action This screen is displayed H 20 The same as the output 1 OUT1 proportional band P setting only when OFF is selected for P OFF on the preceding 1 2 E T H sereen O SCrEEN O This screen is displayed when the optional output 2 function is added 1 4 4 Output 1 integral time setting screen 1 12 Output 2 hysteresis setting screen F Initial value 120 seconds de i Initial value 20 units Sr Setting range OFF l 6000 seconds roa Setting range 1 999 units 2a Basically setting of this item is not necessary when aut
4. 0 1 Output monitor screen Automatic Manual Manual Automatic output output output output Press END key Press END key for 3 seconds D key for 3 seconds 2500 continuously amp y V MAN display lamp MAN display lamp MAN display lamp MAN display lamp stops flashing flashes flashes stops flashing Tf 2 Supplemtary explanation of using the manual adjustment output Monitor screens OUT1 and OUT2 and automatic manual output When automatic output is changed to manual output is put in a balanceless bumpless action and the value of output right before the change is displayed Changing from manual to auto also causes bumpless action but not if the PV value is outside the proportional band If power supply is shut off and power is applied again control output continues to be in auto or manual at the time when power supply is shut off Note Although a change to another screen in the manual mode is possible it should be noted that control output is manual in this case Flashing of the MAN monitor LED indicates that the manual mode is ON 3 AT Auto Tuning AT is the function of automatically processing and setting P I D the parameters of P I D control Processing time differs depending on the details of control 1 Execution of AT Pressing the CAD or CYD key on the 0 3 AT action control screen changes GF displayed on the bottom to r and the decimal point of the rightmost digit flashes Then press the END key
5. Sampling cycle Isolation 1999 5000 units No voltage contact or open collector level action about 5V DC 1mA maximum 0 15 seconds Action input not insulated from system and other inputs but insulated from others m Communication function option Type of communication RS 232C RS 485 Communication system RS 232C 3 line type half duplex system RS 485 2 line type half duplex system RS 485 is of half duplex multi drop bus system Start stop synchronization system RS 232C The longest 15 m RS 485 The longest 500 m depending on conditions 1200 2400 4800 9600 19200 bps 7 bits even parity 1 stop bit or 8 bits non parity 1 stop bit 1 255 EEP RAM t_E Add Add two S cmp XOR None 1 100 x 0 512 msec Minimum level retention time Isolation Synchronization system Communication distance Communication speed Data format Communication address Communication memory mode Communication BCC Communication delay time Communication code ASCII code Communication protocol Shimaden s standard protocol Number of connectable instruments RS 232 1 RS 485 up to 31 Communication signals insulated from system each input and each output Isolation 25 m Analog output option Number of output points Type of analog output 1 point Selectable from measured value target value SV in execution control output 1 and control output 2
6. Noise filter Controller f IN OUT 100 240V AC 100 240V AC Dae Protective Protective grounding grounding Recommended noise filter TDK s ZMB2203 13 Connection of current detector CT To the CT input terminal of controller Insert a load line through the hole of the noise filter ee No polarity meant for the controller With this wire connect the secondary side terminal of CT to the CT input terminal of the SR90 series controller Heater load wiring 3 5 Terminal Layout Follow the terminal layout and terminal arrangement table shown below in your wiring operation SR91 5 A e 100 240VAC piece fe0Hz 11VA ANAC as Gomz _ 50 60Hz 7VA OUTPUT2 m7 i EV1 OUTPUT1 C Sii 4 1A240VAC F 4 20MA DC CT SB 5 E H i 0 10V DC i Di2 30mA 12V DC i 12 x 2 12 i 1A2iQvAc pa K5 2A 24Qv AG aren 2 SR92 A 0 dL oo 24VDC 8W i 100 240VAC 24AVC i 50 60Hz 15VA 50 60Hz 9VA eH top FJ outrutt m 4 20mA DC O 0 10V DC 30mA 12V DC Chap 2A240V AC TN 1 OUTPUT2 5113 4 20mA DC O Zl o iov DC a 30mA 12V DC 14 2A240V AC 7 Al A too TIPR 50 60Hz 15VA E Ege OUTPUT1 4200 20mA DC 0 10V DC 30mA 12V DC 2A240V AC paaa SR93 amp SR94 Tid 14 tp Heh OUTPUT2 Jaini 4 20MA 0 10V 30mA 12V DC 2A240V AC i EV1 1A240VAC roD 3 6 Terminal Arrangement Table Name of terminal Descrip
7. Select 4 when event output is used for control Note however that setting 4 will turn event output OFF if input goes out of order When 2 is set the standby function is put in action only when power is applied When 3 is set the standby function is put in action when power is applied and when SV in execution is changed A change to 1 or 4 while standby action is in execution the standby action will be released immediately If a PV value is out of a range in which an event action is ON standby action becomes invalid even when 2 or 3 has been set for standby action The 1 25 event 2 standby action code setting screen is the same Alarm Action Diagrams The following are diagrams showing alarm actions that can be selected as event 1 and event 2 Hed Higher limit deviation alarm L gf Lower limit deviation alarm Z SV value A Alarm action point Action ON Action ON Hysteresis Hysteresis gt lt lt A A A A coc Outside higher lower limit deviations alarm a c Within higher lower limit deviations alarm Action ON Action ON Action ON A A A A H f Higher limit absolute value alarm L A Lower limit absolute value alarm 5 o Scaleover Action ON Action ON Action ON Action ON A ee PV value a P I D 1 P Proportional action 2 3 A percentage at which control output varies with respect to a measuring range is set Control output increases or decreases in proportion to a difference between PV and SV val
8. A mode of writing data in EEPROM and RAM in communication is set Writing Process Writing entirely in EEPROM Writing entirely in RAM Writing OUT1 and OUT2 in RAM and others in EEPROM 8 Setting of Control Output Characteristic 4 Control output characteristic setting screen Initial value A Setting range 0 dA Characteristic of control output is set The following table shows output characteristics of the one output specification and the two output specification Output Characteristic OUT 1 OUT 2 1 output aa ee fete cnt 2 output For control output characteristic refer to Section 6 9 9 Setting of Soft Start Time 4 Soft start setting screen Initial value OFF Setting range OFF 1 100 seconds Soft start time for changing output gradually is set Soft start does not function when OFF is set For details see Section 6 10 10 Setting of SV Limiter 1 SV limiter lower limit value setting screen Initial value Lower limit value of measuring range Setting range Measuring range lower limit value higher limit value 1 count In case a narrower setting range of target value than a measuring range is used a lower limit value is set It can prevent erroneous setting in a risky range and has some other advantageous effect ri u 7 aie 1 SV limiter higher limit value setting screen Initial value Higher limit value of measuring range Setting range Measuring range lower limit
9. D a i sath ence wis N o f b l i SR93 SHIMADEN rm y a SR94 le 111 p 48 DARID 100 Panel cutout drawing E E K Tt i xun eS asta 48 x N 3 i PV n e E fe ge rd C CA E Tapco i ell ae eee ear 4 l sv Cc i 4 1 t 5 g aS 8 In mo case of installation ou oute z ithout leavi between instruments oie Set ee dies L 4 A N The number of instruments ODD i l i Unit mm i SR94 SHIMADEN 4 External dimensions of current detectors CT of heater break alarm For 0 30 A CTL 6 S For 0 50 A CTL 12 S36 8 2 36 r 21 z 15 a 2 8 t BLEN 95 8 fe N a 7 es Ql 2 ae is J a t 2 4 LoL ul 40 L5 30 5 30 40 af T T So OE oa i A T l Unit mm 2 M3 3 4 Wiring In the wiring operation close attention should be paid to the following A WARNING Make sure to disconnect this product from any power source during the wiring operation to prevent an electric shock Be certain that the protective conductor terminal is properly grounded Otherwise an electric shock may result To prevent an electric shock do not touch wired terminals and other charged elements while they are being energized In the wiring operation follow the terminal layout shown in Section 3 5 and the te
10. The AT lamp flashes and AT starts When AT is executed ON OFF action of output in response to rising and falling of the measured value from the target set value is repeated several times to store PID values internally and AT ends At the same time control using stored PID values begins and the AT 0 3 AT action control screen lamp goes out D key Okey Dey b pie a Decimal point flashes Decimal point stops flashing execution 2 Halfway releasing of AT To stop AT in the middle of execution select G F by using the CAD or CyDkey on the AT action control screen and by pressing the EnD key releases the AT and the decimal point and the AT lamp stops flashing 0 3 AT action control screen Dey Okey FE Dey Y Y OFF Decimal point stops flashing Decimal point flashes Decimal point stops flashing AT lamp stops flashing AT lamp flashes AT lamp flashes AT released in the middle Note In case AT is released in the middle PID values are not changed 3 In the following conditions AT is unable to be executed Control output is in manual The AT screen not displayed Scaleover of PV measured value The AT screen not displayed OFF is selected for proportional band P of output 1 The AT screen not displayed Lock No 2 or 3 selected on the keylock screen 4 If the following occur while AT is in execution AT will be released The output value has been at 0 or 100 continuously for 200 minutes S
11. wee 467 4 Heater Current Monitor Screen cccccsceeseeseeeteeseeseees 16 3 1 Installation Sitesinin eniin i i ERR 4 5 Setting of Heater Break Loop Alarm s seseeessesseeseseeee 16 3 2 Mountings n roie naea e ar ieit 4 6 Setting of Analog Output Type sssssseeseeesesrserrsrersrseess 16 3 3 External Dimensions and Panel Cutout aS 7 Setting of Communication ccceeecceeeeeceeeeeteeteeteeneeees 17 SA WAITING enere e e aa e A a i Eaa 8 Setting of Control Output Characteristic eee 17 3 5 Terminal Layout ean na eta ENE 9 Setting of Soft Start Time essesesesesrersesessrseresrsesreeees 17 3 6 Terminal Arrangement Table 10 Setting of SV Limiter 4 Names and Functions of Parts on Front Panel ccceee 8 11 Setting of PV Bias Value cece eeeeceeeceteeteeteeteeteeeenee 18 5 Explanation of Screens and Setting eee eeeeeeeenees 9 18 12 Setting of PV Filter Time ceeeeseeeeseeeeeeeeeeees 18 5 1 Parameter PLOW 2 0 c0iessc5 sas cascasersecechesresndensentesecitessescedeoreee 9 13 Setting of Measuring Range Code ieee 18 5 2 Display upon Power ON 10 14 Setting of Temperature Unit see 8 5 3 How to Change Screens 10 15 Setting of Input Scaling we 18 1 How to Change Screens in Screen Group 0 cee 10 5 8 Table of Measuring Range Codes cceeseeeseeeneeeeees 18 2 How to Change Screen Group 0 to fro
12. 30A 3 Event output heater break alarm 50A Both 2 3 selectable only when adjustment output 1 is Y P 0 None 3 0 10mV DC 4 4 20mA DC 6 0 10V DC 0 None 5 RS 485 7 RS 232C 8 Set value bias 1 point 0 Without 9 With SR93 SR94 8 Multi input Thermocouple R T D Voltage mV 4 Current mA 6 Voltage V Y Contact l Current P SSR drive voltage V Voltage N None Y Contact I Current P SSR drive voltage V Voltage 90 100 240V AC 08 24V AC DC 0 None 1 Event output 2 Event output heater break alarm 30A 3 Event output heater break alarm 50A Both 2 3 selectable only when adjustment output 1 is Y P 00 None 30 0 10mV DC 40 4 20mA DC 60 0 10V DC 08 Set value bias 1 point 38 0 10mV DC set value bias 1 point 48 4 20mA DC set value bias 1 point 68 0 10V DC set value bias 1 point 05 RS 485 07 RS 232C 0 Without 9 With Accessories This instruction manual 1 copy The Communication interface instruction manual in case optional communication function is added 1 copy Unit seals 1 sheet Current detector for heater break alarm CT in case optional heater break alarm function is added For 30A Model CTL 6 S 1 pe For 50A Model CTL 12 S36 8 1 pe NOTE For any problem with the product shortage of accessories or request for information please contact our agent or our sales office in your neighborhood 2 2 Handling Instruction Do not op
13. 4 types for 1 Without standby action 2 Standby when power is applied 3 Standby when power is applied and when SV value in execution is changed 4 Control mode without standby action No alarm is output at the time of abnormal input Contact la x 2 points common 240V AC 1A resistive load Output updating cycle 0 25 seconds m Heater break heater loop alarm option Break loop detection only for OUT1 Selectable when output type is contact or SSR drive voltage Current capacity 30A 50A to be designated when CT is ordered Heater current is detected by external CT provided as an accessory When heater break is detected while control output is ON Alarm output ON When heater loop alarm is detected while control output is OFF Alarm output ON OFF 0 1 50 0A Alarm action is stopped Hysteresis Standby action EV1 and EV2 Output type rating Alarm action Current setting range by setting OFF Setting resolution 0 1A Current display range 0 0 55 0A Display accuracy Minimum time to identify action 2 0A Sine wave at 50Hz 0 25 seconds every 0 5 seconds common to ON and OFF Selectable from lock to retain and real not to retain Selectable from without OFF and with ON 0 5 seconds CT input not insulated from system and other inputs but insulated from the rest m Set value bias option Setting range Action input Alarm retention mode Standby action
14. Series Input Event Option Control output 2 e heater break alarm e Analog output Communication e Set value bias Remarks Series Input Control output 1 Power supply Control output 1 Control output 2 Power supply Event output or Event output heater break alarm Analog output Communication or Set value bias Remarks Series Input Control output 1 Control output 2 Power supply Event output or Event output heater break alarm Option e Analog output e Set value bias e Analog output Set value bias Communication Remarks SR91 8 Multi input Thermocouple R T D Voltage mV 4 Current mA 6 Voltage V Y Contact l Current P SSR drive voltage V Voltage 90 100 240V AC 08 24V AC DC 0 None 1 Event output N None Y Contact l Current P SSR drive voltage V Voltage 1 heater break alarm 30A 2 heater break alarm 50A eerste only when adjustment output 1 is Y P ami event output is added 3 0 10mV DC 4 4 20mA DC 6 0 10V DC 5 RS 485 8 Set value bias 1 point 0 Without 9 With SR92 8 Multi input Thermocouple R T D Voltage mV 4 Current mA 6 Voltage V Y Contact l Current P SSR drive voltage V Voltage N None Y Contact l Current P SSR drive voltage V Voltage 90 100 240V AC 08 24V AC DC 0 None 1 Event output 2 Event output heater break alarm
15. be set on this screen When the O key is pressed the keylock setting screen which is the first setting screen appears Pressing the key while the END key is being pressed calls the last screen i e the input scaling decimal point position setting screen 1 Setting of Keylock 1 1 Key lock setting screen Initial value OFF Setting range OFF 1 2 3 BEE Lock items which you don t want to be changed Data are unable to be changed on locked screens Select OFF to release the lock The following table shows lock numbers and ranges to be locked Range to be locked Release of lock All data allowed to be changed Keylock for all screens except the screen group 0 and communication mode communication mode Keylock for all screens except communication mode Keylock for all screens except basic screen and To the 1 2 screen 0 5 Event 2 EV2 set value setting screen Fe g The above description of the 0 4 screen applies to the 0 5 screen only with a change of EV 1 to EV2 i Initial value O units mO Setting screen 1999 5000 units This screen is displayed when the optional set value bias function is added A set value is effective while the SB terminals are O shorted and it is added to or reduced from the set value When an SB is set the monitor LED lamp SB COM lights To the 0 0 basic screen 2 Setting of Output
16. impedance 500kQ minimum External resistance tolerance below 100Q Burnout function Standard feature up scale Reference contact compensation accuracy 1 C within the accuracy maintaining range 23 5 C 2 C between 5 and 45 C of ambient temperature R T D Pt100 JPt100 3 wire type Normal current 0 25 mA Lead wire tolerance 5Q maximum wire 3 lead wires should have the same resistance Voltage mV 10 10 0 10 0 20 0 50 10 50 0 100mv DC V 1 1 0 1 0 2 0 5 1 5 0 10V Input impedance over 500kQ Current mA 0 20 4 20mA DC Receiving impedance 250Q Input scaling function Scaling possible for voltage mV V or current mA input Scaling range 1999 9999 counts Span 10 5000 counts Position of decimal point None 1 2 and 3 digits on the right of decimal point Sampling cycle 0 25 seconds PV bias 1999 2000 units PV filter 0 100 seconds Isolation Control input not insulated from system set value bias and CT input but insulated from others m Control Control mode With 1 output Expert PID control with auto tuning function RA reverse characteristic Heating action DA direct characteristic Cooling action With 2 outputs Expert PID control with auto tuning function PID control 24 RA reverse characteristic Heating action OUT1 and cooling action OUT2 DA direct characteristic 2 stage heating action Type of control rating Common to Outpu
17. limit deviation alarm Higher limit deviation alarm must be higher than the target set value and lower limit deviation alarm must be lower than the target set value This is conveniently used to make the alarm action point follow deviation from the target set value The set range will be 1999 2000 unit Absolute Value Alarm An alarm action point is set by an absolute value For example when the target set value is 20 C 30 C should be set for higher limit absolute alarm in order to put an alarm in action at 30 C and higher To put an alarm in action at 30 C and lower when the target set value is 100 C 30 C should be set for lower limit absolute alarm Both higher limit and lower limit can be set at any value within the measuring range This alarm is convenient when the alarm action point is fixed Standby Action This is used to withhold alarm action even when an alarm action point is reached when power is applied and to put the alarm in action on the alarm action point after a target set value SV is reached No standby Action If an alarm action point is reached when power is applied an alarm is output This is used to output an alarm whenever an alarm action point is reached Setting of Event Standby Action In the 1 22 event 1 standby action code setting screen in the explanation of the screen group 1 1 2 3 4 5 6 Select a code from 1 2 and 3 of the standby action code table when event output is used as an alarm
18. output 2 Dotted line A DB dead band NOTE In these diagrams the manual reset MR value is 50 Soft Start It is the function to raise control output gradually in a set time upon applying power and at the time of return from scaleover to normal The function effectively prevents excess current from being present in a heater or the like 1 The soft start function is put in action in the following conditions When power is applied in the automatic output mode and when a normal state is returned from scaleover When P proportional band is not OFF When soft start time has been set i e not OFF 2 Soft start is released in the following conditions Soft start time has elapsed normally An output value under soft start control exceeds an PID operated output value Soft start time is turned OFF by key operation The automatic output mode is changed to the manual output mode by key operation AT auto tuning is executed by key operation The setting of P proportional band is changed to OFF by key operation The measuring range of input is changed by key operation A control output characteristic is changed by key operation 20 7 Maintenance and Troubleshooting 7 1 Procedure of Maintenance Replacement and Matters to Be Attended to Steps for replacing defective items Confirmation of Model Code Check the model code of the component part in trouble Open the control box and you
19. value higher limit value 1 count In case a narrower setting range of target value than a measuring range is used a higher limit value is set It can prevent erroneous setting in a risky range and has some other advantageous effect Note An SV limiter is set so as to be SV limiter lower limit value lt SV limiter higher limit and priority is given to the lower limit value Therefore a higher limit cannot be set at a smaller value than a lower limit value 1 count Y To the 1 46 screen 11 Setting of PV Bias Value PV bias value setting screen 1 46 Initial value O unit Setting range 1999 2000 units This value is used to correct an input error from a sensor or the like When a bias is used control is also carried out with a corrected value 12 Setting of PV Filter Time 1 47 PV filter time setting screen Initial value 0 second Setting range 0 100 seconds In case input changes conspicuously or noise continues PV filter is used to mitigate such undesirable effect When 0 second is set filter does not function el 13 Setting of Measuring Range Code 1 48 Anli us Measuring range code setting screen j Initial value Multi 05 voltage 86 current 92 Setting range Select from the Table of Measuring Range Codes in Section 5 8 Each code represents a combination of an input type and a measuring range O 14 Setting of Temperature Unit 1 49 ince Temperatu
20. 300V AC minute Between power terminal and protective conductor terminal 1500V AC minute Only front panel has dust proof and drip proof structure equivalent to IP66 PPO resin molding equivalent to UL94V 1 Supply voltage Power consumption Input noise removal ratio Conformity with standards Insulation resistance Dielectric strength Protective structure Material of case External dimensions SR91 H48 x W48 x D111 Panel depth 100 mm SR92 H72 x W72 x D111 Panel depth 100 mm SR93 H96 x W96 x D111 Panel depth 100 mm SR94 H96 x W48 x D111 Panel depth 100 mm Push in panel one touch mount 1 0 4 0 mm SR91 H45 x W45 mm SR92 H68 x W68 mm SR93 H92 x W92 mm SR94 H92 x W45 mm SR91 Approximately 170 g SR92 Approximately 280 g SR93 Approximately 330 g SR94 Approximately 240 g Mounting Panel thickness Panel cutout Weight MEMO The contents of this manual are subject to change without notice Distributed in New Zealand by gt Temperature and Humidity Control Specialists SHIMADEN cO LTD Intech INSTRUMENTS LTD Head Office 2 30 10 Kitamachi Nerima Ku Tokyo 179 0081 Japan Christchurch Auckland www intech co nz Phone 81 3 3931 7891 Fax 81 3 3931 3089 Ph 64393430646 098271930 lt ales intech co nz E MAIL exp dept shimaden co jp URL http www shimaden co jp Fx 6433430649 098271931 J PRINTED IN JAPAN 26
21. 4 20mA DC Maximum load resistance 3002 0 10V DC Maximum load current 2mA 0 10mV DC Output impedance 10Q Measured value target value Within measuring range inversed scaling possible Control output 1 and 2 0 0 100 0 inversed scaling possible 0 3 FS with respect to displayed value About 0 01 1 10000 0 25 seconds Analog output insulated from system and inputs but not insulated from control output except contact output Output signal rating Output scaling Output accuracy Output resolution Output updating cycle Isolation m General specifications Data storage Non volatile memory EEPROM Environmental conditions for instrument operation Temperature 10 50 C Humidity 90 RH or less no dew condensation Height 2000m from the sea level or lower Category II Degree of pollution 2 Storage temperature 20 65 C Either 100 240V AC 10 50 60Hz or 24V AC DC 10 to be designated SR91 100 240VAC 11VA maximum for AC 6W for DC 24V 7VA for AC 24V SR92 SR93 and SR94 100 240VAC 15VA maximum for AC 8W for DC 24V 9VA for AC 24V 50 dB or higher in normal mode 50 60 Hz 130 dB or higher in common mode 50 60 Hz Safety IEC1010 and EN61010 1 EMC EN61326 Between input output terminals and power terminal 500V DC 20MQ or above Between input output terminals and protective conductor terminal 500V DC 20MQ or above Between input output terminals and power terminal 2
22. From the 1 0 initial screen of the screen group 1 To the 1 0 initial screen of the screen group 1 A higher limit value of scaling of linear input mV V or mA is set 18 5 8 Table of Measuring Range Codes Select a measuring range from the following table A change of the code will initialize all date related to the measuring range Table of Measuring Range Codes Input type Measuring range C Measuring range F 0 1800 0 3300 0 1700 0 3100 0 1700 0 3100 199 9 400 0 300 750 0 0 0 0 800 0 1500 0 1200 2200 0 700 0 1300 0 600 0 1100 Thermocouple T 199 9 200 0 300 400 N 0 1300 0 2300 PLI 3 0 1300 0 2300 Wre5 26 4 0 199 9 200 0 2300 0 4200 400 0 600 0 1100 200 600 300 1100 Multi input 100 0 100 0 150 0 200 0 Pt100 50 0 50 0 50 0 120 0 0 0 200 0 0 0 400 0 200 500 300 1000 100 0 100 0 150 0 200 0 JPt100 50 0 50 0 50 0 120 0 0 0 200 0 0 0 400 0 10 10mV 0 10mV Initial value 0 0 100 0 0 20mV Input scaling measuring range 1999 9999 Span 10 5000 counts Position of decimal point None 1 2 or 3 digits on the right of decimal point 0 50mV 10 50mV 0 100mV 1 1V 0 1V 0 2V Initial value 0 0 100 0 0 5V Input scaling measuring r
23. SR90 Series SR91 SR92 SR93 SR94 Digital Controller Instruction Manual Thank you for purchasing a Shimaden product Please check that the delivered product is the correct item you ordered Please do not begin operating this product before you read this instruction manual thoroughly and understand its contents Notice Please ensure that this instruction manual is given to the final user of the instrument Preface This instruction manual is meant for those who will be involved in the wiring installation operation and routine maintenance of the SR90 series SR91 SR92 SR93 and SR94 It describes matters to be attended to in handling the SR90 series how to install it its wiring its functions and operating procedures Keep this manual at the work site while handling the instrument and follow the guidance provided herein Contents A Safety RULES tits skies soe need fase cr etna eat NER EG 2 5 7 Explanation of Screen Group 1 and Setting 14 18 2 Introductio oes 4 5 capers cents coe persone cose e e aee ae e Enei 3 1 Setting of Keylock seesesesesesesereseseseresesescseeseseseresesese 14 2 1 Check before Use r ccissvs act actieneevelentveseiserszecctateevessesresess 3 2 Setting Of Output aevscseucesrassesoissonersen scenic dnc cas 15 2 2 Handling Instruction eee eseeeeseeseneeeeecseeseeesseeeeeeees 4 3 Setting of Event eee 16 3 Installation and Wiring
24. a 1 21 Event 1 hysteresis El d E _ g 5 units 1 22 Event 1 standby action El i _a i 23 Event 2 type E2 m Fe _ A ia 1 24 Event 2 hysteresis E2 d FC_c 5 units 1 25 Event 2 standby action E2 i Egu i 1 26 Heater current monitor Hb A Hh_ A 27 Heater break loop alarm Hb m Hha LE 1 28 Heater break loop alarm standby Hb i H_a ore 1 29 Heater break alarm value Hb S HbS OFF 1 30 Heater loop alarm value HL S HL 5 ore 1 31 Analog output type Ao m Aon PEH 1 32 Analog output scaling lower limit Ao L Aa_t ad 1 33 Analog output scaling higher limit Ao H AoH ao 1 34 Communication mode setting comm o orar Loc 35 Communication address Addr Aaa i 1 36 Communication data format dAtA gAEA TE i 37 Start character SchA Gch SER 1 38 BCC operation type bee boo i 1 39 Communication speed bPS 4S DOG 1 40 Communication delay time dely dEL H cd 1 41 Communication memory mode mem GEA EEP 1 42 Control output characteristic Act AcE cA 1 43 Soft start time Soft Soft ote 1 44 SV limiter lower limit value SV L SH_ ao 1 45 SV limiter higher limit value SV H SH_ aa 46 PV bias value PV b PH_S5 0 units 47 PV filter time PV F PH_F a 1 48 Measuring range codes Multi rAnG And as V rAnG fF And G amp S A rAnG AnG ag 1 49 Temperature unit Unit Lim E 1 50 Input scaling lower limit Sc L Se_t ad 1 51 Input scaling higher limit Sc H Se_ atua 52 In
25. al is set as the lower limit value of scaling for an intended output value To the 1 33 screen Analog output scaling higher limit setting screen Initial value 800 0 The higher limit value of setting range for PV and SV and 100 0 for OUT1 and OUT2 Within measuring range when PV or SV is selected 0 0 100 0 when OUT1 or OUT2 is selected A maximum level 10mV 20mA or 10V of analog output signal is set as the higher limit value of scaling for an intended output value Inversed scaling of Ao_L gt Ao_H is also possible H L 1 count y or above Setting range The following diagrams show analog output characteristics by scaling In the case of Ao_L lt Ao_H In the case of Ao_L gt Ao_H Analog Analog output output 100 100 0 0 0 Ao_L Ao_H 100 0 Ao H Ao L100 Scaling range Scaling range 7 Setting of Communication For the communication function refer to the Communication Instruction Manual provided separately 1 34 Communication mode setting screen conn Initial value ge local Loc Setting range Loc C or com Only a change from Com to Loc is possible by operating keys Communication is enabled in the mode displayed on the bottom Communication address setting screen Initial value 1 Setting range 1 255 Setting range G amp S AEE i A machine number is set in case two or more controllers are I E o A connected through communication 1 36 Communication data format set
26. ange 1999 9999 Span 10 5000 counts Position of decimal point None 1 2 or 3 digits on the right of decimal point 1 5V 0 10V 0 20mA 4 20mA B R S K E J T N JISMEC Pt100 JIS IEC JPt100 Former JIS B Accuracy guarantee not applicable to 400 C 752 F and below hermocoup R T D 1 Thermocouple 2 K T U Accuracy of those whose readings are below 100 C is 0 7 FS PLII Platinel Wre5 26 A product of Hoskins U L DIN 43710 nermocouple 3 4 5 nermocoup nermocoup nermocoup e e e NOTE Unless otherwise specified the measuring range will be set as listed below during the shipment from the factory Input Specification Rating Measuring range Multi input K thermocouple 0 0 800 0 C 0 10V DC Voltage V 0 0 100 0 4 20mA DC Current mA 0 0 100 0 6 Explanation of Functions 6 1 6 2 6 4 All the details sre mentioned here except the explanation of 5 5 Procedure of setting screen group 0 Events 1 2 3 4 Deviation Alarm An alarm action point is set by a deviation from target set value SV For example when the target set value is 20 C 10 C should be set for higher limit deviation alarm in order to put an alarm in action at 30 C and higher To put an alarm in action at 30 C and lower when the target set value is 100 C 70 C should be set for higher
27. arget set value SV display i E 3 Action display lamps CY Ca Cent 4 Operating keys SR91 SHIMADEN Measured value PV display 1 Present measured value PV is displayed on the screen group 0 basic screen and output display screens OUTI and OUT2 red 2 Type of parameter is shown on each parameter screen Target set value SV display 1 Target set value SV is displayed on the basic screen of the screen group 0 green 2 Present output value is displayed by on control output monitor screens OUT 1 OUT2 of the screen group 0 3 Selected item and set value are displayed on each parameter screen Action display lamps 1 Control output indicators OUT1 and OUT2 option green e OUT lights when output turns ON and goes out when it turns OFF during contact or SSR drive voltage output The brightness changes in proportion to output increase decrease during current or voltage output e OUT2 functions only if the option is added 2 Event output indicators EV1 EV2 option orange Light when assigned events including heater break loop alarm turn ON if event option is added 3 Auto tuning action indicator AT green e Flashes when ON is selected by CAD key on the AT action selection screen and AT is executed by EnD key and goes out when AT terminates automatically or is released 4 Manual control output action indicator MAN green e Flashes when manual contr
28. caleover of PV value 5 AT works as follows in the instrument of two output specifications RA characteristic PID constants are common to OUT1 and OUT2 DA characteristic AT is executed only for OUT and while AT is in execution output of OUT2 is at 0 or the lower limiter value of output limiter 4 Setting of Event Set Value Before a value is set an event type should be set as described in the following paragraph 1 Event type setting When an event type code is changed however all the set values data concerning the event are initialized 1 Event type alarm type setting Call the 1 20 event 1 type code setting screen of the screen group 1 and select one from the type codes Hd Ld od id HA and LA by pressing the C and CYD keys Then register it by the ND key There are the following 6 event type alarm type codes 7 Higher limit deviation g Lower limit deviation cory Outside higher lower limit deviations _ g Within higher lower limit deviations 4 4 Higher limit absolute value L A Lower limit absolute value A selected code is displayed and an action point is to be set for the selected event type alarm type qi None 5m Scaleover and 4 4 Heater break loop alarm are screen display only 2 Setting of event value The 0 4 event 1 set value setting screen or the 0 5 event 2 set value setting screen will set It will be on display when either of the previous 6 types of event is selected Set the aimed valu
29. can find an appropriate code in the model label affixed to the instrument case Inquiry on Input Data Ask the manufacturer if input data control date of external operation event output set value of position etc at the time when an error occurs is necessary or not Confirmation of Present Wiring Condition Check and record the present wiring condition Please note that in case input data is necessary for control the same control operation as before is not possible with a replaced product unless such data is input Confirmation of Present Input Data When data is not known call the input date for the product check and record it In case input data is required the same control operation as before is not possible with a replaced product unless such data is input Repair of Present Product or Procurement of New Product In case the product in trouble is removable from the site of installation remove and have it repaired If it is not possible arrange to acquire a new product for replacement Setting before Starting Operation When replaced by a new product check the wiring apply power and set items as described in 5 4 Before Starting Up 7 2 Cause of Trouble and Troubleshooting Problem Error code is displayed Refer to Error Codes Causes and Refer to Error Codes Causes and Remedies Remedies efi Displayed PV value seems Set measuring range code is Check if set measuring range code is correct for Displa
30. couple 4 R T D Ge Voltage mV A Voltage V GG Current mA Indicates control output 1 OUT1 output type 4 Contact SSR drive voltage amp Voltage _ Current Indicates control output 2 OUT2 output type Y H Lower limit value of selected measuring range Higher limit value of selected measuring range Basic screen The starting screen of the screen group 0 The 0 0 basic screen is followed by screens on which various Measured value PV functions are set by means of operating keys f Target set value SV For the screen sequence refer to Parameter Flow in the preceding page How to Change Screens Screen group 0 the group of screens for setting primarily by the end user Screen group 1 the group of screens for setting primarily by the manufacturer and equipment manufacturers 1 How to Change Screens in Screen Group 0 Every time the PARA key is pressed the screen moves to the next and the 0 0 basic screen returns when it is pressed on the last screen 0 0 Basic screen 0 1 OUT1 output monitor screen 0 6 Set value bias setting screen ew Lest OQ 56 oO idm ten tia Braye tes i gt gt A0 i t 2 How to Change Screen Group 0 to from Screen Group 1 Pressing the key continuously for 3 seconds on the basic screen of the screen group 0 calls the 1 0 initial screen of the screen group onto display Also by pressing the G gt key continuously on the 1 0 initial screen of s
31. creen group 1 calls the basic screen of screen group 0 Screen group 0 Screen group 1 0 0 basic screen 1 0 initial screen Okey nn 3 seconds SEE 3 How to Change Screens in Screen Group 1 Starting from the 1 0 initial screen of the screen group 1 every time the key is pressed the next screen appears and the 1 0 initial screen returns when it is pressed on the last screen By pressing the G gt key while pressing the EnD key in the screen group 1 you can go back to the preceding screen When the key is pressed while the ExD key is being pressed on the 1 0 initial screen the last screen of this group i e the 1 52 input scaling decimal point position setting screen appears on the display i P 1 52 Input scaling 1 0 Initial screen 1 1 Keylock setting screen decimal point position setting screen Pace icc Sear gt SEE oFF i OS 1 0 Initial screen 1 1 Keylock setting screen seca Soo setting screen PAA fer QO S SEE OFF i DO j 4 How to Change Set Values Data To change data on a screen which is called by pressing the key use the CAD or CY key and register the changed data by pressing the END key 10 5 4 Before Starting Up 5 5 To begin with check the wiring and set the items listed below by the setting methods of the screen groups Factory set items and items already set by equipment manufacturers need not be set here 1 Checking of Wiring Check that t
32. d night and the like 2 Setting of set value bias In case the optional set value bias function is added press the CAD or CY key on the 0 6 screen to set a numerical value of set value bias and register the value by pressing the yD key The decimal point stops flashing The set value remains effective while the SB terminals are shorted and is added to the target set value When a set value bias is set the SB COM lamp lights Setting range 1999 5000 units 13 5 6 Explanation of Screen Group 0 and Setting Screen Group 0 Key operation The gt key is used to proceed to the next screen The CAD key and the CY key are used for selection on each setting screen and the END key is used for registration The Ent key need not be pressed however when a manual control output value is changed on the output monitor screen 5 7 Explanation of Screen Group 1 and Setting Screen Group 1 Key operation The gt key is used to proceed to the next screen The CA key and the CYD key are used for selection on each setting screen and the END key is used for registration When the key is pressed while the END key is being pressed the preceding setting screen is called back To the 1 2 screen To move between the screen group 0 and the screen group 1 press the C key continuously for 3 seconds on the 0 0 basic screen or the 1 0 initial screen as described below 0 0 Basic screen 3 seconds amp Initial value Lowe
33. e measuring range by transmitting unit of measured values Check 10 if set code of measuring range is correct for input signal HHHH Lower limit side scale over Input measured value fell Check wiring of inversed polarity for measured from lower limit of value input measuring range by 10 A break of R T D input A break of B Check R T D input terminals A B and B for wiring Breaks of ABB breaks If wiring has no problem replace R T D Higher limit side scaleover Ambient temperature of the Reduce ambient temperature to the level of reference contact CJ of product has exceeded 80 C provided in the environment conditions for thermocouple input the product Incase ambient temperature has not exceeded 80 C examine the SR90 Lower limit side scaleover Ambient temperature of the Raise ambient temperature to the level of reference contact CJ of product has fallen to 20 C provided in the environment conditions for thermocouple input or lower the product Incase ambient temperature has not fallen to 20 C examine the product 2 Heater break loop alarm problems Screen display HAHAH Input value from heater Excess current Reduce the current HBHH current detector has Examine the product exceeded 55 0A Input value from heater The product in trouble Examine repair or replace the product current detector fails to reached 5 0A 2292 3
34. e by pressing the CAD or Cy key on screen When the nD key is pressed to register the set event value the decimal point stops flashing Setting ranges Higher limit deviation value or lower limit value 1999 2000 units Outside or within higher lower limit deviation values 0 2000 units Higher limit absolute value or lower limit absolute value Within measuring range No event value can be set while AT auto tuning is in execution Set after releasing AT ee 0 4 Event 1 set value screen D key D key D key Okey as y Y Y ae Decimal point flashes Decimal point stops flashing registration Decimal point flashes changeable 3 Changing the event value To change the value pressing the CAD or the CY key causes the decimal point to flash and the value will change Press the nD key to set your aimed value the decimal points will stop flashing 5 Set Value Bias 1 Set value bias As an optional function additional setting of another target set value is possible It is set as a set value bias which indicates a deviation from the target set value For instance when 20 C has been set as the target set and you want to set another set value at 30 C set the set value bias at 10 C The set value bias becomes effective when the SB terminals are closed When the SB terminals are open the target set value becomes effective This function is used conveniently to switch a target value between summer and winter day an
35. e control output screens OUT1 OUT2 this key functions to switch between automatic output and manual output 5 Explanation of Screens and Setting 5 1 Parameter Flow Outline of Parameter Flow displayed below Set parameter according to the explanation of each setting screen NOTE Four kinds of frame lines signify the following Screens regularly shown i by key operation and depending on control action modes PID other means action or ON OFF action Screens shown when prorteseeeesseees Screens for monitoring without automatic appropriate options are Talaan return after 3 minutes added or selected Screen Group 0 Screen Group 1 CD About 3 seconds id 0 0 5 i eens 1 26 Heer bran dam ry seing 0 1 Otiput monitoring OUT i 1 2 Output 1 proportional band setting 1 29 Heater break alarm value setting i Sn O gi 1 3 Output 1 hysteresis setting 1 30 Heater loop alam Salje setting 0 2 O monitoring OUT2 1 4 Output 1 integral time setting 1 31 alog output type setting i a OS ee ere 1 5 Output 1 derivative time setting 1 32 i log output scalino lowe limit i 08 re esis 19 in cit QD 1 7 Output 1 target value function setting 1 34 Coinrhurication made seth eo maan TIETEET SOA Communio adres seina rer A ae 1 9 Output 1 higher limit output limiter setting 1 36 Communication da
36. erate the keys on the front panel with a hard or sharply pointed object Operate the keys only by softly touching them by your fingertips When cleaning the instrument wipe it gently with a dry cloth Never use solvent such as a thinner 3 Installation and Wiring 3 1 Installation Site environmental conditions A CAUTION This instrument should not be used in any of the places mentioned below Selection of these places may result in trouble with the instrument damage to it or even a fire Where flammable gas corrosive gas oil mist and particles that can deteriorate electrical insulation are generated or abundant Where the temperature is below 10 C or above 50 C Where the relative humidity is above 90 RH or below the dew point Where highly intense vibration or impact is generated or transferred Near high voltage power lines or where inductive interference can affect the operation of the instrument Where the instrument is exposed to dew drops or direct sunlight Where the height is above 2000 m Outdoors NOTE The environmental conditions belong to the installation category II of IEC664 and the degree of pollution is 2 3 2 Mounting A CAUTION For safety s sake and to protect the functionality of the product do not draw out its body from the case If it needs to be drawn out for replacement or repair call our agent or our sales office in your neighborhood Cut a hole for m
37. ereese 11 7 2 Causes of Trouble and Troubleshooting s e seseeeeeees 21 GYAT Auto TUNNE Jenisna onsen cones todeetbandes 12 7 3 Error Codes Causes and Remedies c ccccesseeseeseeees 22 4 Setting of Event Set Value gee L2 8 Record of Parameter Setting DS Set Value Bias sss ccscceazhsoneseet e ee i aea e e e 13 9 Specifications sesen ioeie ae ee a a nai S 5 6 Explanation of Screen Group 0 and Setting 14 SHIMADEN CO LTD Dee 2001 oi hs 1 Safety Rules For matters regarding safety potential damage to equipment and or facilities additional instructions and notes are indicated by the following headings A WARNING This heading indicates hazardous conditions that could cause injury or death of personnel unless extreme caution is exercised CAUTION This heading indicates hazardous conditions that could cause damage to equipment and or facilities unless extreme caution is exercised NOTE This heading indicates additional instructions and or notes The mark represents a protective conductor terminal Make sure to ground it properly A WARNING The SR90 series is designed for controlling temperature humidity and other physical quantities of general industrial equipment Avoid using it for control of devices upon which human life is dependent When used adequate and effective safety measures must be taken No warranty is valid in the case of an accident arising from the use of this
38. he wiring to connected terminals is carried out properly Erroneous wiring will result in burnout 2 Application of Operating Power Apply operating power The controller is energized and the data display and other lamps light 3 Setting of Measuring Range Call the 1 48 measuring range code screen of the screen group 1 and select a code from the measuring range codes For current voltage or mV input lower higher limit values and the position of decimal point should be set Depending on a selected code selection on the 1 49 1 50 or 1 51 screen will be required 4 Setting of Control In the case of ON OFF two position action call the 1 2 output 1 proportional band setting screen of the mode 1 screen group and select OFF and register it Follow the same procedure for output 2 if the option is added Omit this setting in the case of AT 5 Setting of Control Output Characteristics Call the 1 42 control output characteristic setting screen of the screen group 1 and select either RA or DA correspondingly to output characteristic specification as shown in the table 6 Setting of Event Type If the optional event function is added call the 1 20 event alarm type code setting screen of the screen group 1 and select and register a code 7 Setting of Analog Output If the optional analog output function is added call the 1 31 analog output type setting screen of the screen group and select one from the setting range and register it 8 No
39. imit value of control output 1 is set O Co Initial value Contact output 30 seconds m SSR drive voltage output 3 seconds Hoe Set OB au Setting range 1 120 seconds Proportional cycling time of control output 2 is set To the 1 10 screen J To the 1 20 screen 15 3 Setting of Event Please refer to section 6 1 6 2 and 6 3 Initial value Hd Setting range OFF Hd Ld od id HA LA So Hb The type of event to be selected as event is selected from the following code table Table of Event Type Alarm Type Codes errno d Outside higher lower limit deviations Po Per ranna __ FHA Higher iniabsoltevae PEAT Lowerimiatsome vane Initial value 5 units Setting range 1 999 units ON OFF hysteresis is set for event 1 This screen is displayed when an alarm type code is selected from Hg Lo ad od HA LA Initial value 1 Setting range 1 2 3 4 An event 1 standby action type code is selected from the following table This screen is displayed when an alarm type code is selected from QD Hg Lo ad od HA LA Table of Standby Action Codes Without standby function Standby action only when power is applied Stand by action when power is applied and when SV in execution is changed Control mode without standby i Initial value Ld t Setting range OFF Hd Ld od id HA LA So Hb The type of alarm to be selected as event 2 is selected from the table of c
40. is not displayed when P OFF is selected 2 p output 1 is set Refer to Section 6 5 QD For dead band refer to section 6 9 1 7 Output 1 target value function setting screen 1 16 Output 2 target value function setting screen SF rnal value a 0 01 1 00 SF Initial value 0 40 etting range 0 01 1 ine ranse a nan N ie i r eta A ack oue r Tun Setting range OFF 0 01 1 00 A E NA URA Oe USEC TO SUDPIESS OVIS IOONE UEACTSTO CUNE T i La ILa The same as the output 1 target value function setting screen expertPIDisset o a a w a g Be tren nnn y Setting 1 00 for SF makes overshoot minimum O O When SF OFF is selected expert PID does not function and ordinary PID action is carried out nmg P 2 This screen is not displayed when P OFF is selected 1 17 4 Bett Output 2 lower limit output limiter setting screen OL ci Initial value 0 0 a Setting range 0 0 99 9 1 8 Output 1 lower limit output limiter setting screen NSPA ctr A lower limit value of control output 2 is set Initial value 0 0 O Setting range 0 0 99 9 A lower limit value of control output 1 is set For output limiter refer to Section 6 6 EEn SEE Hoi Initial value 100 0 i Setting range o_L2 0 1 100 0 ILALL A higher limit value of control output 2 is set Output 1 higher limit output limiter setting screen Initial value 100 0 f Setting range o_L1 0 1 100 0 1 194 Output 2 proportional cycle time setting screen A higher l
41. l value OFF Setting range OFF ON AT is set when ON is selected and is released when OFF is selected This screen does not appear during manual output and when OFF is set for proportional band P of output 1 While AT is being executed key operation other than for releasing AT setting keylock and switching a communication mode is not possible For AT action see Section 5 5 3 0 4 y oo Event 1 EV1 set value setting screen E iHa Initial value e Higher limit deviation value 2000 units f eons Lower limit deviation value 1999 unit wee i Outside higher lower deviations or within deviations O 2000 units Higher limit absolute value Higher limit value of measuring range Lower limit absolute value Lower limit value of measuring range Setting range Higher limit deviation value or lower limit deviation value 1999 2000 units Outside higher lower limit deviations or within deviations 0 2000 units Higher limit absolute value or lower limit absolute value Within measuring range This screen is displayed when the optional event function is added and alarm code is assigned to Hd LA and the action point of the assigned alarm type is set on it For details see Section 5 5 4 To the 0 5 screen 14 1 0 Initial screen 1 52 EDO Tothe input scaling decimal point position setting screen Pressing the O key for 3 seconds continuously on the basic screen calls this screen There is no item to
42. m Screen Group 1 10 6 Explanation of Functions 0 19 20 3 How to Change Screens in Screen Group 1 00 cesses 10 6 1 EVENS sci cesereisisevseed e dotted bach dele devevcius bags sess 19 4 How to Change Set Values Data ccceseseseceeeeeeeeeeeees 10 6 2 Setting of Event Standby Action ce ceeeeeeereeeeereeeee 19 5 4 Before Starting Up oe 6 3 Alarm Actions Diagrams iced 1 Checking Of Wirinig sseen dsena i aa 11 6A PID nenns a Ea N A S EE 19 2 Application of Operating POWer eeseeeeeseseseseesreeresesesee 11 625 Manual Resets noe a a isc stoke pene 20 3 Setting of Measuring Range wll 6 6 Lower Limit and Higher Limit Setting Limiters 20 4 Setting of Control ee eeeseeeeeeeeees wll 6 7 Proportional Cycling Time ieee eeeereeeeee 20 5 Setting of Control Output Characteristics Il 6 8 Auto Return Function 20 6 Setting of Event Type eee wll 6 9 Control Output Characteristics 20 7 Setting of Analog Output eee well G71 Soft Start s isto cn03t cs tse ce erent hare ee cease ohne ens 20 8 Note on Initialization Following Data Change 0 11 7 Maintenance and Troubleshooting cesses 21 22 5 5 Procedure of Setting in Screen Group 0 11 7 1 Procedure of Maintenance Replacement and Matters to Be 1 Setting of Target Set Value ai Attended tosses errer ieii a nE TS 21 2 Manual Setting of Control Output s ssssesseseesseseeeersr
43. o tuning is H co Hysteresis for ON OFF action is set executed r 3 EEANN This screen is displayed only when P OFF is selected on the For integral time refer to Section 6 4 2 O preceding 1 11 screen O This screen is not displayed when P OFF is selected 1 13 Output 2 integral time setting screen 1 5 4 Output 1 derivative time setting screen o ci Initial value 120 seconds Tyl i Setting range OFF 1 6000 seconds ad Initial value 30 seconds Ie AH The same as the output integral time setting screen Setting range OFF 1 3600 seconds Peed aie abaae 30 Basically setting of this item is not necessary when auto tuning is O executed oe Ad f 3 For integral time refer to Section 6 4 3 1 1444 Output 2 derivative time setting screen O This screen is not displayed when P OFF is selected i a i Thitiall values 30 seconds Setting range OFF 1 3600 seconds H a0 The same as the output 1 derivative time setting screen 1 6 Output 1 manual reset setting screen oa rie Initial value 0 0 or 50 0 when the controller is of 2 output specifications 1 15 Output deadband setting screen nn i paee e e caus Setting range 50 0 50 0 H ab Initial value O units A value for offset correction is set when OFF is selected for I P action or PD action i Setting range 1999 5000 units Lili The position of the action output 2 against the action position of QD This screen
44. odes Initial value 5 units Setting range 1 999 units ON OFF hysteresis is set for event 2 This screen is displayed when an alarm type code is selected from Ad id ad od HA LA 1 25 C Event 2 standby action code setting screen Setting range 1 2 3 4 An event 2 standby action type code is selected from the following table This screen is displayed when an alarm type code is selected from Ha Ld od Col HA LA ES L i Initial value 1 To the 1 26 screen Y 16 4 Heater Current Monitor Screen Heater current monitor screen Hh This screen is displayed when the optional heater break loop alarm function is added and used to monitor heater current There is no Lali item to be set on this screen Note Heater break loop alarm works on output 1 QD Heater break loop alarm is selectable as event or event 2 Heater break loop alarm is assignable in case output 1 is of contact or SSR drive voltage As this screen is for monitoring only auto return does not function 5 Setting of Heater Break Loop Alarm Initial value c Setting range L C E L E Lock mode In this mode once a break or loop alarm is output the alarm output is maintained until OFF is selected on the heater break or loop alarm value setting screen or the power supply is cut QD r amp Real mode An alarm is turned ON or OFF according to a rise or fall of the value of c
45. ol output is selected on control output display screens OUT1 OUT2 remains unlit during automatic control output 5 Set value bias communication indicator SB COM option green Lights when optional set value bias function is added and at the time of shorting across SB terminal set value bias in action Lights when optional communication function is added and COM mode is selected Goes out when Local is selected for communication mode Operating keys 1 parameter key e Pressing this key on any screen of the screen group 0 and the screen group 1 calls the next screen onto display e When pressed continuously for 3 seconds this key functions to move between the basic screen of screen group 0 and the initial screen of screen group 1 e Pressing this key simultaneously with END key in the screen group 1 calls the preceding screen onto display 2 CD down key e When pressed on a parameter screen the decimal point of the rightmost digit flashes and the set data decreases or moves backward 3 QD up key e When pressed on a parameter screen the decimal point of the rightmost digit flashes and the set data increases or moves forward 4 ND entry registration key e Used to register a set data changed by means of CAD or CY key on a parameter screen e Pressing this key simultaneously with C key on a screen of the screen group 1 calls the preceding screen onto display e When pressed continuously for 3 seconds on th
46. ounting the controller in the panel by referring to the cutout drawing in Section 3 3 The panel thickness should be 1 0 4 0 mm As the instrument is provided with pawls for fixing just press it firmly from the front of the panel The SR90 series instrument is designed in a panel mounting mode Never use it without mounting on the panel 3 3 External Dimensions and Panel Cutout SR91 SR92 Panel cutout drawing EIR Em at aia c ei a a A E l g X O t E l 5 In the case of installation i g without leaving space P tre sy ea between instruments i N The number of instruments l Unit mm 111 aa i i Pall 100 Panel cutout drawing i ___ 100 or more outi A 68 87 aie BE se J oN ee ee ae ah 8 l o a D I SS oe DDD E Unit mm SR92 SHIMADEN SR93 le 111 j l L 96 J DEERD 100 Panel cutout drawing E E 130 or more py A A p rN E EB eo r i i g o IB SV C i t 8 ite i a
47. product without having taken such safety measures A WARNING For using this instrument house it in a control box or the like to prevent terminals from coming into contact with personnel Do not draw out the instrument out from its case Do not let your hand or any conductive body into the case It may lead to serious injury or death due to an electric shock Make sure to ground protective conductor terminals A CAUTION To avoid damage to connected equipment facilities or the SR90 itself due to a fault of the product safety measures must be taken before usage such as the installation of a fuse an overheating protection device and the like No warranty is valid in the case of an accident arising from the use of this product without such safety measures CAUTION The alert mark A on the plate affixed to the instrument On the terminal nameplate affixed to the case of this instrument the alert mark A is printed This is to warn you of the risk of electric shock which may result if the charger is touched while being energized As a means to turn the power off a switch or a breaker should be installed in the external power circuit to be connected to the power terminal of the instrument Fix the switch or the breaker adjacently to the instrument in a position which allows it to be operated with ease with an indication that it is a means of turning the power off Use a
48. put scaling decimal point position Scdp Sed ag 393 9 Specifications m Display Digital display Measured value PV 7 segments red LED 4 digits Target set value SV 7 segments green LED 4 digits Display accuracy 0 3 FS 1 digit Excluding reference contact temperature compensation accuracy of thermocouple input Accuracy of readings lower than 100 C of thermocouples K T U inputs is 0 7 FS Accuracy guarantee not applicable to 400 C 752 F and below of B thermocouple Display accuracy maintaining range 23 C 5 C 18 28 C Display resolution Differs by measuring range 0 001 0 01 0 1 and 1 Measured value display range 10 110 of measuring range Display updating cycle 0 25 seconds Action display color 7 type LED lamp display Control output OUT1 OUT2 Green Event EV1 EV2 Orange Auto tuning Green Manual control output MAN Green Set value bias communication SB COM Green E Setting Setting method By operating 4 keys GAD CH and n7 on the front panel Target value setting range Same as measuring range within setting limiter Setting limiter Individual setting for higher and lower limits any value is selectable within measuring range Lower limit value lt Higher limit value E Input Type of input Selectable from multiple TC Pt mV voltage V and current mA Thermocouple B R S K E J T N PL II Wre5 26 UL DIN 43710 Input
49. r limit value of measuring range Setting range Within measuring range within SV limiter A measured value PV is displayed on the top and the bottom is for display and setting of a target set value SV aD For details see Section 5 5 1 0 1 _ Output 1 OUT1 monitor screen CSc i A measured value PV is displayed The bottom is for m monitoring of the control output value of output 1 in the automatic Cong mode and for changing a set value in the manual mode Manual output setting range 0 0 100 0 O within output 1 limiter Output monitor screens OUT and OUT2 and auto manual output For switching auto to manual and vice versa the END key is pressed continuously for 3 seconds on the output 1 or output 2 screen e When the output mode auto or manual of either output 1 or output 2 is changed the output mode of the other is also changed e When the output is manual the Man lamp flashes For details see Section 5 5 2 0 2 Output 2 OUT2 monitor screen oo A measured value PV is displayed The bottom is for z monitoring of the control output value of output 2 in the automatic 9 Sac mode and for changing a set value in the manual mode Manual output setting range 0 0 100 0 within output 2 limiter In the manual mode the screen appears only if the optional function of output 2 is added QD For details see Section 5 5 2 0 3 AT auto tuning action control screen Initia
50. r the like to stick to it A rise in temperature or insulation failure may result in a reduction of the life of the product and or problems with it or may cause a fire For spaces between installed instruments refer to 3 3 External Dimensions and Panel Cutout It should be noted that repeated tolerance tests against voltage noise surge etc may lead to deterioration of the instrument Users are prohibited from remodeling the product or using it in a prohibited way 2 Introduction 2 1 Check before Use This product has been fully inspected for quality assurance prior to shipment Nevertheless you are requested to make sure that there is no error damage or shortage of delivered items by checking the model codes and the external view of the product and the number of accessories Confirmation of Model Codes Check the model codes affixed to the case of the product to ascertain if the respective codes designate what was specified when you ordered it referring to the following code table SR90 series is based on 3 types of selectable codes SR91 SR92 SR93 and SR94 Please refer to the following example of model codes Example of SR91 model type codes SiR G1 6 590 ONO TCE E Example of SR92 model type codes SR92 8Y N 90 0 000 Example of SR93 SR94 model type codes SR93 8Y N 90 0000 5 oe Po On
51. re unit setting screen Cc Setting range Select C or F as the unit of temperature for sensor input This screen is not displayed when linear input mV V or mA is selected Initial value Cc 15 Setting of Input Scaling Input scaling lower limit value setting screen Initial value 0 0 Setting range 1999 9989 units A lower limit value of scaling of linear input mV V or mA is set The screen is for monitoring only for sensor input and setting is not possible Initial value 100 0 Setting range Se _ 10 Se L 5000 For sensor input the screen is for monitoring only and setting is not possible Note If input scaling higher lower limits is set to make difference between the higher and lower limit values less than 10 counts or more than 5000 counts the higher limit value is automatically changed to make the difference 10 counts or 5000 counts A higher limit value which is smaller than a lower limit value 10 counts or larger than a lower limit value 5000 counts is unable to be set 1 52 Input scaling decimal point position setting screen Se dP Initial value 1 digit on the right of decimal point 0 0 Fard Setting range No decimal point 0 3 digits on the right of LlLl decimal point 0 000 The position of decimal point for input scaling is set For sensor input this screen is for monitoring only and setting is not possible MO l
52. rminal arrangement in Section 3 6 and make sure to carry out the correct wiring process Use a press fit terminal which fits an M3 5 screw and has a width of 7 mm or less In the case of thermocouple input use a compensating conductor compatible with the selected type of thermocouple In the case of R T D input the resistance of a single lead wire must be 5Q or less and the three wires must have the same resistance The input signal wire must not be accommodated with a high voltage power cable in the same conduit or duct Shield wiring single point grounding is effective against static induction noise Twisting the input wires at short and equal intervals is effective against electromagnetic induction noise In wiring for power supply use a wire or cable whose performance is equal to or higher than the 600V vinyl insulated wire having a sectional area of 1 mm or larger The wire for grounding must have a sectional area of 2 mm or larger and must be grounded at a grounding resistance of 100Q or less Clamp the screws of terminals firmly Clamping torque 1 0 N em 10 kgf cm If the instrument appears to be easily affected by power supply noise use a noise filter to prevent malfunctioning Mount the noise filter on the grounded panel and make the wire connection between the noise filter output and the power line terminals of the controller as short as possible O2 Q OOO Make this wire as short as possible
53. switch or a breaker which meets IEC947 requirements Fuse Since the instrument does not have a built in fuse do not forget to install a fuse in the power circuit to be connected to the power terminal A fuse should be positioned between a switch or a breaker and the instrument and mounted on the L side of the power terminal Fuse rating characteristics 250 VAC 0 5 A medium lagged or lagged type Use a fuse which meets IEC127 requirements Voltage current of a load to be connected to the output terminal and the alarm terminal should be within a rated range Otherwise the temperature will rise to reduce the life of the product and or to result in problems with the product For rated voltage current see 9 Specifications The output terminal should be connected with a device which meets the requirements of IEC1010 A voltage current different from that of the input specification should not be applied to the input terminal It may reduce the life of the product and or result in problems with the product For rated voltage current see 9 Specifications In the case of voltage or current input the input terminal should be connected to a device which meets IEC1010 requirements The instrument is provided with a draft hole for heat discharge Take care to prevent metal and other foreign matter from entering into it Failure to do so may result in trouble with the instrument or may even cause a fire Do not block the draft hole or allow dust o
54. t and 2 Control output resolution Control output 1 Proportional band P Integral time I Derivative time D Target value function ON OFF hysteresis Manual reset Higher lower limit output limiter Proportional cycle Control output 2 option Proportional band P Integral time 1 Derivative time D Target value function ON OFF hysteresis Dead band Higher lower limit output limiter Proportional cycle Manual control Output setting range Setting resolution Manual auto switching Soft start AT point Control output characteristic Isolation m Event output option Number of event points Types OFF Event setting range Event action He ia oa ca HA LA Sa Ha Contact 1 a 240V AC 2A resistive load 1 2A inductive load SSR drive voltage 12V 1 5V DC Maximum load current 30mA Current 4 20mA DC Maximum load resistance 600Q Voltage 0O 10V DC Maximum load current 2mA Control output 1 approx 0 0125 1 8000 Control output 2 approx 0 5 1 200 OFF 0 1 999 9 ON OFF action by OFF OFF 1 6000 seconds P or PD action by OFF OFF 1 3600 seconds P or PI action by OFF OFF 0 01 1 00 1 999 units Effective when P OFF 50 0 50 0 Effective when I OFF Lower limit 0 0 99 9 higher limit 0 1 100 0 Lower limit value lt Higher limit value 1 120 seconds for contact and SSR dri
55. t a higher limit value which is less than a lower limit 1 Proportional Cycling Time It should be within a range from 1 120 seconds in the case of contact output or SSR drive voltage output Proportional cycling time is ON time OFF time within a proportional band Auto Return Function If no key is operated for 3 minutes or longer on a screen except the 0 1 output 1 monitor screen 0 2 output 2 monitor screen and 1 26 heater current monitor screen the screen automatically changes to the 0 0 basic screen of the mode 0 screen group This is called auto return Control Output Characteristics 1 One output For heating action RA reverse action OUT 1 is set and for cooling action DA direct action OUT 1 is set 2 Two outputs RA reverse action is set for heating action OUT1 and cooling action OUT2 DA direct action is set for heating action OUT1 and heating action OUT2 Control output characteristics with two outputs are shown in the following diagrams shows heating and cooling control and two stage heating control Output characteristic diagram of 2 output Output characteristic diagram of 2 output heating and cooling action heating and heating action Control output 1 Control output 2 Control output 1 Control output 2 100 nunnnnnnunnngonnnnnnnnnngunnnnnnnnnn 100 a a A al a ee amp 50 50 0 0 A A A DB DB 0 DB DB DB 0 DB Control output 1 Solid line ZN Target set value SV 3 5 a Control
56. ta forirat setting i ee aaa 1 10 Output 1 proportional cycle time setting 1 37 star character setting a i QD 1 11 1 38 BCC operation type setting 1 Ie Seat epee ee aces ee Pade als 0 6 Set value bias i 1 123 1 39 Communication speed sei 1 40 ication delay tim 1 41 Communication memory mode setting 0 0 To basic screen 1 15 1 42 Control output characteristic setting Note 1 When the gt key is pressed on 1 17 1 44 any screen of the screen group 0 the next screen appears TEE u i Note 2 When the gt ie pressed on 1 18 1 45 any screen of the screen group 1 the next screen appears To return 1 19 1 46 to the preceding screen press the key Note 3 Moving between the two screen 1 21 1 48 groups Pressing the C key continuously for 3 seconds on the 1 22 1 49 Temperature unit setting 0 0 basic screen of the screen group 0 calls the 1 0 initial screen p ae of the screen group 1 onto display 1 23 1 50 and vice versa 1 25 1 52 Input scaling decimal point position 1 26 Heater current monitoring O MO Oy oe O EDO Y w To 1 27 screen From 1 27 screen To 1 0 screen From 1 0 screen 9 5 2 Display upon Power ON 5 3 When power is applied initial screens upon power ON are displayed successively each for about 1 second Then the basic screen is displayed Name of series G 9 1 G 9P 5r 93 57 94H Input type Thermo
57. te on Initialization Following Data Change When the code of measuring range type of event or type of analog output is changed a set value is initialized and resetting is required Procedure of Setting in Screen Group 0 In the follwing section 5 6 the flow of setting screens is explained in the next section Explanation of Screen Group 0 and Setting In this section the procedure of setting is described Key operation a Use the key to call the next screen On each setting screen use the CAD or CY key for selection and the EnD key for registration Nevertheless in case the value of manual control output is changed on the output monitor screen the EnD key need not be pressed 1 Setting of Target Set Value SV To seta target set value SV press the GAD or CYD key on the 0 0 basic screen When either of the keys is pressed continuously the decimal point of the rightmost digit flashes and the numerical value keeps increasing or decreasing When it reaches a target set value press the END key to register Once it reaches the target set value the digit stops flashing Setting of a target set value is not possible while auto tuning AT is in execution AT should be relieved for setting Example 500 0 C is to be set as a target set value 0 0 basic screen D key continuously Decimal point flashing Decimal point flashing Decimal point stops flashing 2 Manual Setting of Control Output 1 Switching between au
58. ting screen peye 7am i Initial value 7E1 Data length 7 bits even parity stop bit 1 i Setting range 7E1 8N1 Data length 8 bits non parity stop bit 1 i m Ii R a H 1 7 A communication data format is set 1 37 Start character setting screen 5ch i Initial value GES Which of Stx STX and GLE is used as the start character of communication format is set BCC operation type setting screen Initial value 1 i Setting range 1 4 An operation type for error detection BCC check is set from 1 to 4 shown in the following table Table of BCC Operation Types Add operation from start character to text end character Type of Operation 2 s complement after add operation from start character to text end character Exclusive OR operation immediately after start character to text end character Without BCC operation Y To the 1 39 screen Initial value 1200 Setting range 1200 2400 4800 9600 19200 bps A communication speed is set but 19200 bps is displayed as 4277 because of limitation in the number of digits 4 Communication delay time setting screen Initial value 20 Setting range 1 100 Time lag from receiving a communication command to transmission is set Delay time Set value x 0 512 msec Communication memory mode setting screen EEP Initial value EEP Setting range EEP cA _E 1 42 43 BEF 44 0 17 1 45
59. tion Code SR91 SR92 SR93 94 6 100 240V AC 24V AC L 24V DC Power supply 100 240V AC 24V AC N 24V DC Input R T D A thermocouple voltage current R T D B thermocouple voltage current R T D B Contact NO SSR drive voltage Voltage Current Contact NO SSR drive voltage Voltage Current Event output option Hessen opin mia 17 18 Analog output 11 15 5 option 12 16 1 1 11 12 Set value bias option et sa Communication option RS 232C SD RS 485 RS 232C RD RS 485 TERMINAL 1 SPECIFICATION 1 2 3 asec se so AD Rs4s5 sa 24VDC 8W 24AVC 50 60Hz 9VA 1 SPECIFICATION Rs220 sa 0 AO Rs4s sat NOTE With thermocouple voltage current input shorting across B and B terminal will cause an error NOTE The optional functions of the SR90 are subject to the following conditions SR91 Only one of control output 2 heater break alarm analog output communication and set value bias is selectable SR92 Communication and set value bias are not selectable simultaneously SR93 94 Communication and analog output or communication and set value bias are not selectable simultaneously Simultaneous selection of analog output and set value bias is possible though 4 Names and Functions of Parts on Front Panel 4 Measured value PV display 2 T
60. tomatic output and manual output on output monitor screen OUT1 and OUT2 and setting To switch auto to manual and vice versa press the END key for 3 seconds continuously on the output 1 or output 2 screen Upon turning to manual the MAN lamp flashes and it remains unlighted during automatic output To set a target value press the CAD or CYD key on the output monitor screen to keep the numerical value increasing or decreasing until a target value is reached To release manual output press the xD key again for 3 seconds continuously and automatic output returns If the output mode of either output 1 or output 2 is changed to manual the output mode of the other is also changed to manual Also if changed to auto the output of the other will be changed to auto as well In case the output of output 1 is at 100 0 744 is displayed on the output 1 screen and the decimal point of flashes In case the output of output 2 is at 100 0 4S is displayed on the output 2 screen and the decimal point of z flashes In case output is of contact or SSR drive voltage and OFF is set for proportional band P the value of output will be 0 0 or 100 0 In case output is of voltage or current and OFF is set for proportional band P the value of output will be the lower limit value or the higher limit value of a set limiter While auto tuning AT is in execution switching to manual output is not possible It should be done after releasing AT
61. ues The narrower the proportional band the more conspicuously output changes to strengthen proportional action If it is too narrow however the result of control will be close to ON OFF action Integral time This is the function to correct an offset constant deviation The longer the integral time the weaker the corrective action and the shorter the time the stronger the action but control result may be undulated due to integral hunting D Derivative time This is the function to estimate a change in control output suppress overshoot caused by integration and improve control stability The longer the derivative time the stronger the derivative action but control result may be vibratile 19 6 6 6 7 6 8 6 9 6 10 Manual Reset In PID action an offset is corrected automatically by I i e integration When OFF is set for I correction is not carried out and so output should be increased or decreased manually This method is called manual reset Lower Limit and Higher Limit Setting Limiters 1 Output limiter means to limit a minimum or maximum value of control output and this function is effective in maintaining the lowest temperature or suppressing overshooting of control 2 Output limiter gives preference to a lower limit value When a larger lower limit value than a higher limit value is set the higher limit value is automatically changed to the lower limit value 1 In other words it is not possible to se
62. urrent from a set value The hysteresis for the release of alarm output is fixed to 0 2A Heater break loop standby action setting screen gt Hb ra Initial value OFF SS Setting range OFF ON i oF E When ON is set alarm output is withheld or kept to be on standby until the current value enters its normal range once even if the current at the time of applying power is such that an alarm should O be output i Initial value OFF Setting range OFF 0 1 50 0A oF Heater current is detected by CT while control output is ON Lower current than a set value of current is taken as abnormal and an alarm is output Initial value OFF Setting range OFF 0 1 50 0A Heater current is detected by CT while control output is OFF Higher current than a set value of current is taken as abnormal and an alarm is output 6 Setting of Analog Output Type 1 31 Analog output type setting screen Initial value Ab Setting range PH Sy Dut A Out E i P H A s A L p 7 An item intended to be output as an analog signal is selected from 4 items Measured value PV target set value SV control output 1 OUT1 and control output 2 OUT2 Initial value 0 0 The lower limit value of setting range for PV and SV and 0 0 for OUT1 and OUT2 Setting range Within measuring range when PV or SV is selected 0 0 100 0 when OUT1 or OUT2 is selected A minimum value OmV 4mA or OV of analog output sign
63. ve voltage output OFF 0 1 999 9 ON OFF action by OFF OFF 1 6000 seconds P or PD action by OFF OFF 1 3600 seconds P or PI action by OFF OFF 0 01 1 00 1 999 units Effective when P OFF 1999 5000 units Overlap with a negative value Lower limit 0 0 99 9 higher limit 0 1 100 0 Lower limit value lt Higher limit value 1 120 seconds for contact and SSR drive voltage output 0 0 100 0 0 1 Balanceless bumpless within proportional range however OFF 1 100 seconds SV value in execution RA reverse characteristic DA direct characteristic switching by front key Contact output isolated from all Analog output not insulated from SSR drive voltage current and voltage but insulated from others In case another output is also of SSR drive voltage current or voltage however two outputs are not insulated from each other 2 points of EV1 and EV2 Selectable from the following 9 types for EV1 and EV2 No selection Higher limit deviation Lower limit deviation Outside higher lower limit deviations Within higher lower limit deviations Higher limit absolute value Lower limit absolute value Scaleover Heater break loop alarm Absolute values both higher limit and lower limit Within measuring range Deviations both higher limit and lower limit 1999 2000 units Higher lower limit deviations within outside 0 2000 units ON OFF action 1 999 units Selectable from the following
64. y on the front panel Key unable to be operated to be incorrect different from that of input input signal sensor input signal Correct wiring to input terminals of sensor Erroneous wiring to input terminals of sensor Problem with power supply and Inspect portions related to power source and wire goes out and the instrument wiring connection connection Check wiring Keylock is in effect Release keylock Deterioration of the product Examine and repair or replace the product In case communication function Change the communication setting to the local is added the communication mode Loc mode Com has been set does not operate Deterioration of the product Examine the product and repair or replace ON OFF action of control ON OFF is set for P of PID Change the OFF set for P to two position type output is too fast Too small a value set for ON OFF action hysteresis of ON OFF action Increase the hysteresis value of ON OFF action 21 7 3 Error Codes Causes and Remedies 1 Input measured value problems Screen display HHHH Higher limit side scaleover A break of thermocouple Check thermocouple input wiring for a input wiring possible break A break of R T D input Check R T D input A wiring for a possible A wiring break If wiring has no problem replace Input measured value R T D exceeded higher limit of For voltage or current input check th

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