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4-10

<Toc>

<4. Troubleshooting and Maintenance>

IM 05D01B02-41E

1st Edition : May 31,2000-00

6.

Pull out the relay to be replaced.
The control output relays are easy to remove and mount, since they are connected via a
socket onto the print boards.

Insert the new relay in the socket. Use the following relay.

Manufacturer

OMRON

Model

G6B-2114P-FD-US-P6B

Power supply

12 V DC

7.

Insert the internal unit into the housing.
Apply power to the controller and confirm that the initial operating display is shown.
If the operating display is not shown properly, turn off the controller and pull out the
internal unit. Then, insert it into the housing again.

This completes replacement of the control output relay.

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Содержание UT750

Страница 1: ...Instruction Manual IM 05D01B02 41E Model UT750 Digital Indicating Controller User s Manual for Single loop Control IM 05D01B02 41E 1st Edition...

Страница 2: ...Blank Page...

Страница 3: ...rs Applicable to Single loop Control The specification codes of the UT750 applicable to single loop control are given in the table below UT750 00 UT750 01 UT750 10 UT750 11 UT750 50 UT750 51 Regarding...

Страница 4: ...to avoid electric shock or other dangers that may result in injury or loss of life The following symbols are used in the hardcopy user s manuals and in the user s manual supplied on the CD ROM NOTE I...

Страница 5: ...2 13 2 6 Initializing Parameters 2 15 2 7 Changing Alarm Type 2 16 2 8 Description of Multiple Setpoints and PID 2 19 3 Operations 3 1 3 1 Monitoring purpose Operating Displays Available during Opera...

Страница 6: ...1 Cleaning 4 5 4 2 2 Replacing Brackets 4 5 4 2 3 Attaching Terminal Cover 4 5 4 2 4 Replacing Parts with a Limited Service Life 4 7 4 2 5 Replacing Control Output Relays 4 8 5 Parameters 5 1 5 1 Par...

Страница 7: ...h communication remote input Optional functions Check that the following items are provided Digital indicating controller of ordered model 1 Brackets mounting hardware 1 pair Unit label 1 User s Manua...

Страница 8: ...d 9 no flammable materials are around Never place the controller directly on flammable items or equipment If the controller has to be installed close to flammable items or equipment be sure to provide...

Страница 9: ...ENT A M 25 53 N 1 96 92 117 min 145 min 0 8 0 0 8 0 92 0 8 0 92 0 8 0 92 N stands for the number of controllers to be installed However the measured value applies if N 5 100 11 UT750 1 to 10 mm Panel...

Страница 10: ...front of the panel so that the terminal board on the rear is at the far side 2 Set the brackets in place on the top and bottom of the controller as shown in the figure below then tighten the screws of...

Страница 11: ...ance and cause no significant differences in resistance between the three wires The cables to be used for wiring terminal specifications and recommended parts are as shown below 3 Control output relay...

Страница 12: ...307 0 9 to 2 0 mm2 Thermocouple Shielded compensating lead wires JIS C 1610 X See Yokogawa Electric s GS 6B1U1 E RTD Shielded wires three conductors UL2482 Hitachi Cable Other signals Shielded wires R...

Страница 13: ...tor resistance between three wires should be equal However 10 wire for a maximum range of 150 0 to 150 0 C Wire resistance effect 0 1 C 10 Allowable input voltage 10 V DC for thermocouple mV or RTD in...

Страница 14: ...mA is not feasible Load resistance 600 or less Output accuracy 0 1 of span 5 of span for 1 mA or less Under standard operating conditions 23 2 C 55 10 RH power frequency of 50 60 Hz Control Output Uni...

Страница 15: ...transistor open collector input input voltage of 2 V or less is determined as on and leakage current must not exceed 100 A when off Minimum status detection hold time PV input s sampling period 3 Cont...

Страница 16: ...cations Power supply Rated voltage of 100 to 240 V AC 10 50 60 Hz Power consumption Max 20 VA 8 0 W max Data backup Lithium cell with life expectancy of 10 years Withstanding voltage Between primary t...

Страница 17: ...Isolated between contact output terminals and from other input output terminals and internal circuit Contact input terminals Not isolated between contact input terminals and from com munication termin...

Страница 18: ...ht Height above sea level of 2000 m or less Warm up time 30 minutes or more after power on Transportation and storage conditions Temperature 25 to 70 C Temperature change rate 20 C h or less Humidity...

Страница 19: ...Installation 1 13 IM 05D01B02 41E 1 5 Terminal Wiring Diagrams NOTE Do not use unassigned terminals as relay terminals Terminal wiring diagrams are shown on and after the next page 1st Edition May 31...

Страница 20: ...mp on terminal lugs When receiving 4 20 mA DC current signals set the PV input type to 1 5 V DC setpoint 41 Receiving 4 20 mA DC Current Signals with the Controller 250 4 20mA Factory set to PV retran...

Страница 21: ...FF ON OFF ON OFF OFF ON When switching among target setpoints 1 to 8 If all of the contact inputs are set to OFF the controller uses the immediately preceding target setpoint 19 18 External contact in...

Страница 22: ...18 40 39 38 37 20 DI1 DI2 DI3 DI4 DI5 DI6 COM 5V 5V 5V 5V 5V 5V 36 DI7 36 DI7 5V Contact Transistor contact UT The functions of the external contact outputs are the defaults for single loop position p...

Страница 23: ...operating display that appears at power on Power on Set the alarm type and other setup parameters See 2 2 Setting PV Input Type Setting First at Power on or 2 3 Changing PV Input Type Calibrate valve...

Страница 24: ...ECT display is shown Is lit in green to indicate the status of operation or control CAS Not used in single loop control REM1 Is lit when in remote mode REM2 Not used in single loop control MAN1 Is lit...

Страница 25: ...ange RH1 Minimum value of PV input scale SL1 1V 5V 0 0m 3 h 50 0m 3 h Maximum value of PV input scale SH1 2V 4V RL1 RH1 Parameters to be set for temperature input 1 PV input type IN1 Set according to...

Страница 26: ...ct IN1 OFF A M DISP SET ENT 3 Press the or key to display the required setpoint The figure below shows an example of setting a K type thermocouple 200 0 C to 500 0 C See Instrument Input Range Codes M...

Страница 27: ...ample of setting the minimum value of the PV input range to 0 0 C MENU UTMD IN 4 changing input 1 range low RL1 0 0 A M DISP SET ENT Blinks during change 11 Press the SET ENT key once to register the...

Страница 28: ...F 0 1 of instrument range 1 digit PR20 40 0 0 to 1900 0 C 32 to 3400 F 0 5 of instrument range 1 digit at 800 C or more No accuracy is guaranteed at less than 800 C Thermocouple Unspecified W97Re3 W7...

Страница 29: ...put Decimal Point Position SDP1 Maximum Value of PV Input Scale SH1 or Minimum Value of PV Input Scale SL1 After a change has been made to any of these data items be sure to verify the registered oper...

Страница 30: ...setpoint 1 1 SP In steps 2 and later illustrations of the LCD are cited to explain the procedure 2 Press the SET ENT key for more than 3 seconds to call up the main menu MODE mode parameter main menu...

Страница 31: ...SET ENT key once to display the parameter RH1 maximum value of PV input range SETUP A M DISP SET ENT MENU UTMD IN 3 input 1 range high RH1 500 0 1st Edition May 31 2000 00 13 Press the or key to displ...

Страница 32: ...example of changing time proportional PID relay output 0 factory set default to current output 2 Control output terminal For details on the output terminals for heating cooling control see 1 5 Termin...

Страница 33: ...SP SET ENT 1st Edition May 31 2000 00 8 Press the SET ENT key once to display the parameter OT1 control output type SETUP A M DISP SET ENT MENU UTMD OUT 1 output 1 select OT1 0 9 Press the or key to d...

Страница 34: ...e pulse output terminals cooling side relay output terminals Heating side current output terminals cooling side relay output terminals Heating side relay output terminals cooling side transistor outpu...

Страница 35: ...SP SET ENT SP 1 10 0 10 0 0 C DV Displays PV MAN1 lamp ON Displays target setpoint 1 1 SP In steps 2 and later illustrations of the LCD are cited to explain the procedure 1st Edition May 31 2000 00 2...

Страница 36: ...ON 11 The controller is viewed as shown below when the valve position is being automati cally calibrated MENU UTMD VALV 1 valve auto tuning V AT ON 12 Calibration has ended successfully when the indic...

Страница 37: ...re 2 Press the SET ENT key for more than 3 seconds to call up the main menu MODE mode parameter main menu MODE A M DISP SET ENT 3 Press the key once to display the main menu STUP password input main m...

Страница 38: ...0 0 10 0 0 C DV 2 7 Changing Alarm Type The following operating procedure describes an example of changing alarm 1 factory set to the PV high limit alarm to the PV low limit alarm When you have change...

Страница 39: ...ey once to display the parameter AL1 alarm 1 type SETUP A M DISP SET ENT MENU LOOP1 ALM 1 alarm 1 type select AL1 1 8 Press the or key to display the required setpoint The figure below shows an exampl...

Страница 40: ...8 Deviation low limit PV Target SP Deviation setpoint Open unlit Hysteresis Closed lit 4 14 De energized on PV high limit De energized on PV low limit PV Open lit Alarm setpoint Hysteresis Closed unli...

Страница 41: ...ntegral time heating side integral time 2 I derivative time heating side derivative time 2 D cooling side proportional band 2 Pc cooling side integral time 2 Ic and cooling side derivative time 2 Dc T...

Страница 42: ...Blank Page...

Страница 43: ...al control and those for single loop heating cooling control The Process Variable PV display always displays the value of PV input Operating Displays for Single loop and Single loop Position Propor ti...

Страница 44: ...0 OUT 70 0 DV 48 5 C PID 1 C DV trend scan 20sec 0 Allows the control output value to be changed in manual operation Press the key to turn on the MAN1 lamp Then press the or key to change the control...

Страница 45: ...ppears on the Setpoint display LCD For monitoring only For monitoring only Allows the control output value to be changed in manual operation Allows the target setpoint to be changed Heating Cooling OU...

Страница 46: ...w display appears at power on AL A M PV REM1 CAS REM2 MAN1 MAN2 STP 2 4 1 3 PV2 AL DISP SET ENT SP 1 10 0 10 100 0 C DV Displays PV Displays target setpoint 1 1 SP In steps 2 and later illustrations o...

Страница 47: ...hange at control element results in inconvenience Processes where variations in PV may exceed an allowable range adversely affect ing product quality 1 Bring the operating display into view display ap...

Страница 48: ...nce to register the setpoint This starts auto tuning If the SET ENT key is pressed when AT OFF auto tuning will be cancelled In this case PID contains the value existing before auto tuning MENU LP1 PA...

Страница 49: ...Press the key once to display the submenu 1 PID PID parameter SPno 1 sub menu 1 PID A M DISP SET ENT 6 Press the SET ENT key six times to display the parameter 1 P proportional band for 1 SP A M DISP...

Страница 50: ...ng the alarm setpoint When changing the alarm type see 2 7 Changing Alarm Type Alarm output terminals Factory Set defaults Alarm 1 terminal numbers PV high limit alarm Alarm 2 terminal numbers PV low...

Страница 51: ...2000 00 6 Press the SET ENT key twice to display the parameter 1 A1 MENU LP1 1 PID 2 alarm 1 set point 1 A1 200 0 C A M DISP SET ENT 7 Press the or key to display the required setpoint C MENU LP1 1 PI...

Страница 52: ...later illustrations of the LCD are cited to explain the procedure 1st Edition May 31 2000 00 5 Press the SET ENT key once to register the setpoint A M DISP SET ENT MENU MODE 6 SPno select SPNO 2 6 Pr...

Страница 53: ...de with contact input 6 DI6 RUN when DI6 is set to OFF 37 20 STOP when DI6 is set to ON 37 20 AL A M PV REM1 CAS REM2 MAN1 MAN2 STP 2 4 1 3 PV2 AL DISP SET ENT When at a stop the controller behaves as...

Страница 54: ...MAN2 STP 2 4 1 3 PV2 AL DISP SET ENT SP 1 10 0 10 100 0 C DV Displays PV Displays target setpoint 1 1 SP 2 Each time you press the A M key on the front panel of the instrument AUTO and MAN is switched...

Страница 55: ...ation see 3 8 Switching between AUTO and MAN AL A M PV REM1 CAS REM2 MAN1 MAN2 STP 2 4 1 3 PV2 AL DISP SET ENT 0 50 100 1 SP 100 0 PID 1 OUT 30 0 C MAN1 lamp ON 2 Press the or key to change a control...

Страница 56: ...enter the state of manipulating the heating side output and its value begins to increase Cooling side manipulated output Heating side manipulated output Output DB 12 4 Dead band Operating parameter DB...

Страница 57: ...cribes an example of switching from Local LCL to remote REM Switching between REM and LCL is possible for only controllers with remote input feature Local Performs control using target setpoints set i...

Страница 58: ...ain menu MODE A M DISP SET ENT 3 Press the SET ENT key several times to display the parameter MODE LOCAL A M DISP SET ENT MENU MODE 3 REM LOC1 select MODE LOCAL 4 Press the or key to display RE MOTE M...

Страница 59: ...g Is display faulty Yes No Turn off power and then turn it on again Is I O signal faulty Yes No Check the instrument s I O specifications Check the supply voltage Check the specifications of I O count...

Страница 60: ...0 or less or OFF Normal action Normal action PV indicating LED Error indication PV decimal point blinks Error code See description below E000 E001 E002 Stopped An error code is displayed in the event...

Страница 61: ...if power off on does not reset start the unit Contact us for repair Power off None 0 or less or OFF OFF 0 or less Stopped Check for abnormal power Feedback resistor breakdown Check the feedback resis...

Страница 62: ...meters RH1 RL1 SDP1 SH1 and SL1 it is possible to scale the input signal and change its number of decimal places Also check that these param eters are configured correctly The Controller does not Prov...

Страница 63: ...benzine or any other solvents 4 2 2 Replacing Brackets When the brackets are broken or lost purchase the following brackets for replacement Target Model Part No UT750 T9115NL A large bracket and smal...

Страница 64: ...ot conducting any electricity 1 Before attaching the terminal cover fold it once or twice so that the side which has the Handle With Care symbol is on the outside Fold over Grooved Fold over Alert sym...

Страница 65: ...About 10 years rated Batteries for backup About 10 years rated Service life Alarm output relays About 100 000 more ON OFF operations or with resistance load Control output relays About 100 000 more O...

Страница 66: ...er than to replace the control output relays 1 Insert a flat blade screwdriver tip width of 6 mm is recommended into the opening with the tip in parallel with the front panel and then turn the screwdr...

Страница 67: ...the bezel and pull it along with the internal unit out of the housing Note Be careful not to damage the RJC sensor 5 The location and number of the relays differ depending on the model code of the UT...

Страница 68: ...the new relay in the socket Use the following relay Manufacturer OMRON Model G6B 2114P FD US P6B Power supply 12 V DC 7 Insert the internal unit into the housing Apply power to the controller and con...

Страница 69: ...ating Parameter Map and Setup Parameter Map for UT750 as a guideline for setting parameters These maps are helpful in finding the positions of the displays when setting the param eters and should be u...

Страница 70: ...ller with auxiliary analog remote input 5 Parameter MODE S R is displayed when the contact input registration parameter S R setup parameter is set to 0 6 Main menu LP2 is displayed when UT mode is Cas...

Страница 71: ...control with PV switching and two universal inputs or Loop control with PV auto selector and two universal inputs 8 Main menu PYS2 is displayed when UT mode is Cascade control Loop control with PV sw...

Страница 72: ...ter Map DISP Pressing the key once when a parameter setting display is shown retrieves the submenu of that parameter setting display Same as LOOP1 However RMS ZON R MD R TM are not contained 1 Paramet...

Страница 73: ...T Note INIT INI SET PY2B PY2A R151 R152 R153 R154 R155 R156 R157 R158 R251 R252 R253 R254 R255 R256 R257 R258 SET DISP DI A M1 CAS S R R L1 A M2 SP 0 MAN AUTO SP 2 SP 1 SP 3 DP1 DP1 DP2 MG1 MG2 MG3 MG...

Страница 74: ...Located in Main menu MODE Parameter Symbol Name of Parameter Setting Range and Description Initial Value User Setting Target Item in CD ROM Remote Local switching Set to Local when carrying out contr...

Страница 75: ...001 to 9 999 Target setpoint Remote input Ratio setpoint Remote bias 1 000 Remote input bias Remote input filter 100 0 to 100 0 of PV input range span Used to correct the remote input value 0 0 of PV...

Страница 76: ...eating cooling control Output high limit Heating side output high limit in heating cooling control Output low limit Cooling side output high limit in heating cooling control Manual reset ON OFF contro...

Страница 77: ...l PID control 1 0 to 10 0 When performing heating cooling control setting any positive value prohibits both the heating and cooling outputs from turning on setting any negative value allows both the h...

Страница 78: ...1 a8 1 b3 1 b4 1 b5 1 b6 66 7 to 105 0 of PV input range 66 7 to 105 0 of PV input range span Ten segment linearizer output Ten segment linearizer approximation 66 7 to 105 0 of PV input range 66 7 t...

Страница 79: ...hen in ten segment linearizer approximation Ten segment linearizer 1 input 7 66 7 to 105 0 of PV input range 0 0 of PV input range Ten segment linearizer 1 output 7 66 7 to 105 0 of PV input range spa...

Страница 80: ...etpoint ON 1 Causes the setpoint to keep track of the PV value so the setpoint automatically reverts to its original value at a preset rate of change The Setpoint Ramp up UPR and Setpoint Ramp down DN...

Страница 81: ...to 99 59 min sec enabled when alarm 1 type AL1 is 1 to 20 or 28 to 31 An alarm is output when the delay timer expires after the alarm setpoint is reached 0 00 Alarm 2 delay timer 0 00 to 99 59 min se...

Страница 82: ...many groups of setpoint alarm and PID parameters the controller should show 1 Show one set 2 Show two sets 3 Show three sets 4 Show four sets 5 to 8 Show as many groups of parameters as have been set...

Страница 83: ...t compute the square root ON 1 Compute the square root OFF 0 Analog input 1 low signal cutoff 0 0 to 5 0 The slope equals 1 at levels below the low signal cutoff point 1 0 A BS2 Although not used in S...

Страница 84: ...or voltage pulse The output is provided via terminals 16 and 17 OFF 0 Disable 1 PV1 2 SP1 3 OUT1 4 LPS loop power supply 15 V 5 PV2 6 SP2 7 OUT2 Setpoints 5 to 7 are not available for single loop con...

Страница 85: ...ing Range and Description Initial Value User Setting Target Item in CD ROM SELECT display 1 registration OFF 0 201 to 1023 Select the desired parameter from among the operating and setup parameters th...

Страница 86: ...SP 7 SP 8 SP ON ON OFF OFF ON ON OFF OFF DI3 DI4 OFF OFF OFF OFF OFF OFF ON OFF ON OFF ON OFF ON OFF OFF ON Ref 3 1 4 Parameter Symbol Name of Parameter Setting Range and Description Initial Value Us...

Страница 87: ...cross which the voltage signal is actually controlled should be set using the parameters Maximum Value of PV Input Scale SH1 and Minimum Value of PV Input Scale SL1 Depend on the PV input type Depend...

Страница 88: ...operation keep the values of these parameters between the maximum and minimum values of the PV input range 19999 to 30000 P RL1 P RH1 where P RH1 P RL1 30000 Maximum value of PV input range or scale...

Страница 89: ...mA 1 0 to 20 mA 2 20 to 4 mA 3 20 to 0 mA 0 Analog output 1 100 segmental point Analog output 2 100 segmental point Analog output 2 0 segmental point Analog output 3 100 segmental point Analog output...

Страница 90: ...nalog Output 3 100 Segmental Point A3H parameter to 0 6 Set the Analog Output 3 0 Segmental Point A3L parameter to 75 The figure below shows an example where both analog outputs 1 and 3 are set to the...

Страница 91: ...tput 3 100 Segmental Point A3H parameter to 75 6 Set the Analog Output 3 0 Segmental Point A3L parameter to 0 The figure below shows an example where both analog outputs 1 and 3 are set to the current...

Страница 92: ...s fixed for MODBUS RTU Ladder 8 BPS1 PRI1 STP1 DLN1 Minimum response time 1 0 to 10 10 ms 0 RP T1 Address 1 1 to 99 However the maximum number of stations connectable is 31 1 ADR1 Protocol selection 2...

Страница 93: ...sed Confirm the valve traveling time by consulting the datasheet of the valve s specifications The valve traveling time is only effective when Valve Adjustment Mode V MOD is set to 1 or 2 60 sec Valve...

Страница 94: ...50 to 100 Heating side output limiter PV SP Manual MV output Communication Heating cooling control provides two methods in which either none of the heating and cooling side outputs are presented or b...

Страница 95: ...controller controls the valve by estimating its position In the case of estimating type position proportional control there is no need for feedback input wiring Feedback type position proportional co...

Страница 96: ...Blank Page...

Страница 97: ...m and Descriptions This chapter contains the function block diagrams for Single loop control Single loop heating cooling control and Single loop position proportional con trol For details on these fun...

Страница 98: ...as PV input bias PV input filter Input selection Unit selection Contact input Target setpoint selection Target setpoints 1 to 8 REMOTE ON LOCAL OFF switching Communication Aux Input LOCAL REMOTE Remot...

Страница 99: ...on AUTO ON MAN OFF switching AUTO MAN STOP ON RUN OFF switching Cooling side preset output Heating side preset output Heating side output Cooling side output 15 V loop power supply Retransmission outp...

Страница 100: ...er Target setpoint ramp rate function Manual operation In MAN operation relay is ON when or key is hold down Preset output AUTO ON MAN OFF switching STOP ON RUN OFF switching AUTO MAN RUN STOP Feed ba...

Страница 101: ...nction can be set by the following parameters Setup Parameters Function Parameter Input selection IN1 Unit selection UNI1 Analog input range conversion RH1 RL1 SDP1 SH1 SL1 UTMD UTMD UTMD IN IN IN Ana...

Страница 102: ...LP1 MODE PAR PAR None Main menu Submenu Contact Input It is possible to select one out of eight setpoints by turning the four contact input signals ON or OFF This function is assigned to DI1 contact i...

Страница 103: ...n Dc LP1 LP1 n PID n PID Cooling side proportional band Pc Cooling side integral time Ic Cooling side derivative time Dc Main menu Submenu Note Parameters n SP n P n I n D n Pc n Ic n Dc n 1 to 8 corr...

Страница 104: ...side preset output n OL n OH LP1 n PID Note Parameters n PO n POc n OL n OH n 1 to 8 and submenu n PID n 1 to 8 correspond to the target setpoint number selected in the target setpoint number selecti...

Страница 105: ...owing parameters Setup Parameters Function Parameter Retransmission output 1 type RET1 Retransmission output 1 scale RTH1 RTL1 Retransmission output 2 type RET2 CMLP CMLP CMLP RET RET RET Retransmissi...

Страница 106: ...Blank Page...

Страница 107: ...s Manual for Single loop Control Manual No IM 05D01B02 41E May 2000 1st Edition Newly published Written by Products Documents Controllers Conditioners Division Yokogawa M C Corporation Published by Yo...

Страница 108: ...Blank Page...

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