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PVST Failure : 

This failure occurs when the PVST command doesn’t take place after a specified time 

(that is specific to actuators based on its RPM and  No. of Turns).  This failure is indicated by using 
any one of the programmable relays present in your module.   

 

2.7

 

    INHIBIT OPTION 

 Inhibit is an interlock for open close operations. Inhibit Operation can be Enabled or Disabled in 

Software (Program Mode). In this module, separate terminals for Inhibit Open and Inhibit Close are 

available. Based on this, Open/Close Commands can be inhibited. 

 

2.8

 

    REMOTE SELECTOR SWITCH 

This option allows the user to create a selector switch for the actuator in Remote mode. It is mainly 

used  to  lock/unlock  the  Local  operation  of  the  actuator  using  push  buttons  through  a  Remote 

command. This is serves as a software lock.  

 

2.9

 

     LOCAL CONTROL STATION (LCS) PRIORITY 

When this feature is enabled, the user can control the actuator in remote 4 –wire mode of operation 

even when in 4-20mA or MODBUS mode of Operation. 

 

2.10

 

REMOTE LOCAL STOP  

This option is also software configurable and can be enabled in Program Mode. The 

actuator 

should  stop  running  in  Remote  Mode  when  STOP  key  is  pressed  in  the  Actuator  Front  Panel.  No 

commands should be accepted by the actuator until it is reset.

 

 

2.11

 

TIMER MODE 

Timer mode is used to control the valve movement. This mode allows us to open or close the valve 

slowly towards the end position after reaching a certain distance with continuous operation.  

Configurable Options  

 

Open timer start Valve Position: The user has to set the valve position at which this Timer 

mode should go on for Open Command. 

 

Open ON time : This parameter decides the amount of time (in s) the actuator runs in Open 

direction before shutting off for Open OFF time (in s).  This continues to happen until the 

respective limit switch is hit (unless the switch is bypassed). 

 

Open OFF time: This parameter decides the amount of time (in s) the actuator shuts off 

before running  in open direction for Open ON time (in s). This continues to happen until the 

respective limit switch is hit (unless the switch is bypassed). 

Содержание EPAC

Страница 1: ...1 EPAC Operation Instruction Manual VERSION V3 XMP NON INSTRUSIVE WITH DATALOGGING MWG Weather Proof Explosion Proof...

Страница 2: ...TCH 9 2 9 LOCAL CONTROL STATION LCS PRIORITY 9 2 10 REMOTE LOCAL STOP 9 2 11 TIMER MODE 9 2 12 PROGRAMMABLE RELAYS 10 2 13 REAL TIME CLOCK RTC 10 2 14 POWER SUPPLY 11 2 15 SURGE PROTECTION AND LIGHTEN...

Страница 3: ...place of installation Customer has to follow specified standards for electrical installations in explosion proof at other hazardous areas Modbus RTU application related configuration guidelines are to...

Страница 4: ...ing occupational health and safety Work performed in potentially explosive atmospheres is subject to special regulations which have to be observed The end user or contractor of the plant is responsibl...

Страница 5: ...d It is also very important that the O rings at the covers are placed correctly and cable glands fastened firmly to prevent ingress of dust or water We recommend additionally If operated seldom perfor...

Страница 6: ...on instructions is considered as part of the device s designated use References and symbols 1 3 The following references and symbols are used to provide information of the basic actuator commands to t...

Страница 7: ...is described in section 3 2 2 INBUILT FRONT PANEL OPTION SELECTION Different features options of the actuator can be configured using software This is done using the selector switches push buttons ba...

Страница 8: ...e The available events are as follows Number of Starts Open and close in specified duration Open and close Command with Selector Switch Position Tripping Torque Profile Non Intrusive Faults o Loss of...

Страница 9: ...when in 4 20mA or MODBUS mode of Operation 2 10 REMOTE LOCAL STOP This option is also software configurable and can be enabled in Program Mode The actuator should stop running in Remote Mode when STO...

Страница 10: ...g 27 faults statues as given below List of available relays o Fault Relay o Optional Relay 3 relays o Additional Relay 2 Latching relays Available Programmable options are o Opened Open Limit Trip o C...

Страница 11: ...ge protection and lightning arrester SP LA card It is placed between command signal line and Interface IF card to eliminate the voltage fluctuations This card is given as default when Modbus or regula...

Страница 12: ...3 The basic LCD view is split into two lines The first line shows the status details The left half shows selector switch position status and the actuator running status alternatively The right half o...

Страница 13: ...NED If LED is OFF then actuator is in Mid Travel AMBER If LED is blinking then actuator is running in CLOSE direction If LED is continuously ON then actuator is fully CLOSED If LED is OFF then actuato...

Страница 14: ...sition Step 2 Press Open Close keys together for approximately 6 seconds Step 3 Press the STOP key on the display of Program Mode as shown in the below figure In the program mode one can choose to con...

Страница 15: ...rogram Mode Stop Key Enter Enter Password Press Stop Key Enter Password General Setting Stop Key Enter A Relay Setting Stop Key Enter B Remote Setting Stop Key Enter C Close Close Close Open Open Open...

Страница 16: ...US Disable Stop H PROGRAM MODE General Settings Flowchart H I MODE Select REMOTE SEL SW Select REMOTE Stop Stop Stop Stop Stop Stop Stop F Local Mode Non Inching A Timer Mode Disable Disable Enable Em...

Страница 17: ...available in this category are shown below I Selection of remote inching non inching II 2 wire remote operation One of the following option will be available with the default factory setting 2 wire m...

Страница 18: ...E 24V RM TWO WIRE BREAK MAKE Signal Fail Stay Select SSR Y N YES Open P Band 005 Open CT 001 Open H Band 0 5 Slave Address ID 001 Baud Rate 9600 Parity NONE Repeater OFF Remote Setting Stop Key Enter...

Страница 19: ...the relay setting selection one or multiple option can be selected for the same relay 1 Opened Open Limit Trip 2 Closed Close Limit Trip 3 Remote Local stop 4 Local Stop 5 Open Torque Trip 6 Close Tor...

Страница 20: ...Rly TH Trip YES NO Opt Rly TOLR Trip YES NO Opt Rly Cntrl spl fail YES NO Opt Rly Phase Reversal YES NO Opt Rly Jammed Valve YES NO K F Rly Opened YES NO F Rly Closed YES NO F Rly Remote Local Stop YE...

Страница 21: ...O J F Rly 4_20mA Sig Fail YES NO K C F Rly PVST Fail YES NO F Rly Intermediate Pos YES NO Opt Rly Power ON YES NO Opt Rly Program Mode YES NO Opt Rly SP Reached YES NO Opt Rly Sel Sw LOCAL YES NO Opt...

Страница 22: ...to exit the menu Intermediate Position Setting This setting is used to operate a relay to indicate the intermediate valve position After entering Intermediate Pos from other options you can select the...

Страница 23: ...eset Torque 2 Change Torque Value To enter into the Calibration Mode follow the below steps Step 1 Keep the selector switch in OFF position Step 2 Press Open Stop keys together approximately 6 seconds...

Страница 24: ...Mode Stop Key Enter X Close Close Close Open Open Stop Stop Stop Stop Stop Stop Limit Cal Mode Stop Key Enter V Stop Preset Torque Stop Key Enter Open Change Torque Value Stop Key Enter AA BB Open Cl...

Страница 25: ...d travel c Engage Manual operation Turn the hand wheel until valve is completely Opened d Press STOP key to accept the Open Limit Value Limit Open Set xxxxx Limit Open Mode Stop Key Enter Limit Open S...

Страница 26: ...A Service for any further assistance DAC CALIBRATION 4 2 2 The flowchart for DAC calibration is given above and the procedure for the same is as discussed below In the Calibration mode use the below s...

Страница 27: ...the value This completes the DAC 4mA Calibration Now the following messages will toggle on the LCD display g Press OPEN push button to increment the DAC output value or press CLOSE push button to dec...

Страница 28: ...nd enter into the 4 20mA calibration mode d Now use the current source for 4 20mA input the input to be connected to the terminals II II The following message is displayed on the screen e Apply curren...

Страница 29: ...lowing screen appears c Open Tripping Torque and Close Tripping Torque can be changed by using Open Close keys Calibration Mode Press Stop Key TOR CAL Mode Press Stop Key Change Tor Value Stop Key Ent...

Страница 30: ...onset of which starts the fine control action Span of P Band is from 1 to 10 This is the start of the control cycle cycle time Ref fig 1 2 H Band Hysteresis band in terms of H band Hysteresis band the...

Страница 31: ...P band 5 5 2 H band 0 5 0 5 3 Duty Cycle 1 sec 1 sec CLOSE LIMIT OPEN LIMIT 0 Start P BAND P band in this the cycle time will vary depending on the error value i e SV PV 100 Start H BAND 0 5 SP PV Pr...

Страница 32: ...e P band larger will be Duty Cycle H band Hysteresis band is to be increased in case there is continuous hunting and the actuator does not stop PROCEDURE TO PROGRAMMING SOLID STATE RELAY CONTROLS The...

Страница 33: ...Non Inching Press Stop Key to move to Remote Select SSR Y N Y ES Press Stop Key to move next OPEN P BAND 0 1 Press Open Close Key change Value OPEN H BAND 0 1 Press Stop Key to move next Press Open Cl...

Страница 34: ...OPEN SIDE CLOSE SIDE 1 SA 12 45 RPM P band 5 5 2 H band 0 5 0 5 3 Duty Cycle 1 sec 1 sec Press Stop Key to move next CLOSE H BAND 0 1 Press Stop Key to move next Press Open Close Key change Value CLO...

Страница 35: ...below From Diagnostic mode you can get the following values The software version installed the raw RTC and POT values etc can be checked here One can give commands and check if these values increase...

Страница 36: ...op to Enter RTC Reading 19 13 18 11 28 POT Reading Stop to Enter POT Reading 00253 4to20ma Reading Stop to Enter 4to20ma Reading 00100 Phase Detection Stop to Enter Phase Detection 066 IN PHASE Factor...

Страница 37: ...uators are connected in a network The figures below show the two main topologies Line and Loop used to connect our actuators for MODBUS communication The figures below represent the same This configur...

Страница 38: ...iagrams for Terminal numbers present at customer end connection Use the repeaters if the distance between the active adjacent participants exceeds 1 2km In case of line redundant line topology use rep...

Страница 39: ...w If termination is required for Channel A Channel B in line topology then dip switch 1 2 should be on respectively All the dip switch should be put on for LOOP topology This configuration takes care...

Страница 40: ...0F 7 PRESET SINGLE REGISTER 0x06 8 PRESET MULTIPLE REGISTERS 0x10 9 DIAGNOSTICS 0x08 a LOOP BACK 0x00 b CLEAR COUNTERS 0x0A c RETURN BUS MESSAGE COUNT 0x0B d RETURN BUS COMMUNICATION ERROR COUNT 0x0C...

Страница 41: ...ADDRESS 0x3E8 0x3E9 0x3E8 0x3E9 0x3EA DATA DETAILS DATA DETAILS BIT POSITION DESCRIPTION DESCRIPTION 0 LOCAL POSITION TSC LOCAL POSITION TSC Valve Position 0 1000 1 REMOTE POSITION TSO REMOTE POSITIO...

Страница 42: ...the function codes 3 7 8 holding registers are as below ADDRESS DATA DESCRIPTION VALUE RANGE MIN MAX STD VALUE NOTE MEANING REMOTE CONTROL 0x3E8 BIT 8 1 OPEN BIT 9 1 CLOSE BIT 12 1 STOP BIT 0 1 MODBU...

Страница 43: ...re that the MAINS 3 phase input supply voltage and frequency of operation is matching the ratings mentioned on the name plate b This module indicates Single Phase fault when only Y phase is missing c...

Страница 44: ...still TOLR trip is showing then check FRC Cable is connected properly between Power supply card and CPU Card e If still problem continues then replace CPU and POWER cards V DISPLAY Space Heater fault...

Страница 45: ...of this error i e the actuator will run in wrong direction for the respective command inputs actuator runs in open direction for close command and vice versa To troubleshoot this interchange any 2 wi...

Страница 46: ...also verify the wiring with respect to WD and ensure that the 4 20mA input is coming from DCS d If the 4 20mA values in Diagnostic Mode is correct and a signal fail still occurs then replace the IF ca...

Страница 47: ...to obtain the required information You are requested to furnish the below details of the name plate while ordering spare parts after sales support Weather Proof Name Plates Variation 1 Variation 2 Th...

Страница 48: ...Actuator Nameplate This plate contains the actuator specifications EPAC Nameplate This gives the complete information of the EPAC version and Wiring diagram used Commission Number of the Actuator Com...

Страница 49: ...for actuators The contact details are given below For Spare parts related details please refer to 3 XMP WITH DATALOGGING OEM SPARES LIST This document will be available on Auma India Website www auma...

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