User Manual QT2500
Contents
1. actively sends commands and requests to the slave actuators The Eltorque CANopen interface is using the CAN Controller Area Network communications standard CANopen is a fieldbus which allows communication between max 127 actuators connected to the same network It is not a master slave network ref Modbus hence all nodes in the network can actively send messages at their own initiative CANopen The communication is prioritized meaning that urgent messages are transmitted and received before information with lower priority Compared to Modbus CANopen has the following advantages More reliable communication i e it is more likely that the information transmitted is received correctly by the recipient More nodes pr network max 127 More control and configuration features available Rev 8 Page 22 of 28 Q ELTO RQUE User Manual QT2500 5 3 Ordering information 5 4 Index GONE csc sees eccce E E EAA 4 5 61 11 0 0 1 og NE 4 11 12 13 21 eee ON ad Ter EE 4 Dimensions 0 cece cecececece ce ececececeeeeeeneceeeceeaeaeneneceeeeeeeeneseneeeeeuaeneneseeeeenaeneneneeeeenenaeneneneeens 5 dE ee e SAG e e E 6 VE UE La BE 4 10 HAS Hell COM SITCOM EEE 15 Vel Eee EE 4 15 VE 0 FD EE 11 12 ME 0 TE ODS a OI EEE 5 8 18 PT 4 7 power SUDDIY unnarennet 6 10 16 17 18 replaceable COMPOM GING EE 15 tempera ee ne eee nee eee ee eee eee eee eee ee 5 7 18 lte oc ccectnceaaeiecesneateasneaebanseanehienaseea2. ELTORQUE User Manual QT2500 Electrical Part turn Valve Actuator Revision Date 29 11 2012 Author Bj rn Nybrodahl Rev 8 Q ELTOQ RQUE User Manual QT2500 Revision history wm date 1 04 03 2009 05 06 2009 TEN MG Added section about replacement of adapter and guidance ring Added information about Analogue Digital and CANopen control interface Various other improvements en 06 2009 Added note about re configuring actuator after interface replacement Leen Lem ets ence enn Ju EEE ar Various layout improvements Minor corrections in Fig 9 on page 11 ein 1 Ra Interface Referenced documentation Technical Manual Control interfaces for Eltorque QT2500 Valve actuators Eltorque Manager 3 Manual Rev 8 Page 2 of 28 Q ELTO RQUE User Manual QT2500 TABLE OF CONTENTS hs TU e eo ME 4 2 Specifications and manual operation n rvnnnrnnnnennnnennnnennnnennnnennnnennnnennnnennnnennnnennnnennnnr 5 2 1 Technical data 5 22 EXlema CONS d e e EE 6 2 3 NNN 7 2 4 Actuator duty type rrrnrrrnnnernnnernnnernnnrrnnnennnnernnnennnnennnnennnnennnsennnnennnnennnsennnsennnsennnsen 7 25 MNA ENN ee 9 JH MVS VAN ANI OPM 2 eden 10 3 1 Mounting actuator ON valve rrrnrrnnnrnranevnnrnnnnrnnnernnrrnanrnanennnrnnnrnnanennnrnnnnnnnsennsennnne 10 Sic FEN NE 11 3 3 Configuration of actuator ee ccceccccceeeeeceeeeceeeeeseeeeesseeeesseeeesseeesseeeesseeesaeeeesaaes 12 34 SCIECIING COSC e ere
3. 2 SPECIFICATIONS AND MANUAL OPERATION 2 1 Technical data 0 250090 000 Weight 78kg indl Valve Adapter and Guidance ring Encapsulation IP68 5m 1 hr P Corrosion protected aluminium and steel enclosure Operation temperature 25 55 C l Digital Open Close Analogue 4 20 mA SORO EEEE CANopen and Modbus Fieldbus 28 Range 360 0 4 resolution KOE cenw Position feedback not corrupted by power failure 110 240 V AC DC 50 60 Hz Max 480VA Over under temperature Motor current is switched off in case of over temperature protection Stator coils utilized as heating elements in case of low temperatures Manual override without tools max 9 Nm torque 100 turns on crank handle 90 movement on valve Configurable using Eltorque Manager Software Guidance ring and valve adapter can be customized on request Manual operation Fig 1 External measurements Rev 8 Page 5 of 28 Q ELTO RQUE User Manual QT2500 2 2 External construction Motor and electronics housing Front view Gear housing Cable glands for control signal cables Cable glands for power supply cables Status indicator light Red Alarm Yellow Standby Closed Blinking Closing Green Standby Open Blinking Opening Green short flash Standby Positioned Red Yellow Green sequence Actuator is re booting 6 Cover for manual operation shaft 7 Valve position indicator 8 Top cover 9 Crank handle
4. Adapter pins held by rubber band Rev 8 Page 20 of 28 Q ELTQ RQUE User Manual QT2500 4 Considering position of valve fastening holes in relation to valve spindle orient the adapter according to valve s closed position Fig 25 Spindle position of closed valve Adapter can be adjusted in steps of 45 5 Put the adapter into the actuator s outgoing shaft 6 Remove rubber band when end of adapter pins are inside the main shaft Fig 26 Adapter inserted in main shaft 7 Install the guidance ring and fasten it with 4 pcs M16x60 screws using a 14 mm hex wrench 8 Tighten screws to a torque of 200 250 Nm Fig 27 Mounting guidance ring 5 2 Terminology A valve is a device that regulates the flow of materials gases fluidized solids slurries or liquids by opening closing or partially obstructing various passageways This manual mostly refers to quarter turn valves with a 90 degrees movement between Closed and Open position An electric device for operation of valves in various process control systems The surface of the valve which the actuator is fastened to Most Valve flange commonly it is holes for 4 screws where hole size and distance between them is defined in EN ISO 5211 standard Valve adapter A device used to connect the actuator to the valve spindle stem Valve actuator Rev 8 Page 21 of 28 Q ELTO RQUE User Manual QT2500 Electronic device controlling the valve actuator accordin
5. 28 Q ELTQ RQUE User Manual QT2500 Connection schematics explanation 1 LED and Hall sensor is connected to Control Interface via a 5 pole cable with contacts in both ends 2 Position sensor is connected to Control Interface via a 5 pole cable but with a 6 pole contact 3 The actuator has 2 power supplies of 40V 150 W each These are connected in series to supply 80V to the motor The Control Interface itself is powered by 40V taken from one of the power supplies 4 Both power supplies get supply voltage from the same connection terminals 4 4 Interface replacement The QT2500 has a modular design and it is possible to convert from one type of control to another simply by replacing the control interface 1 Remove top cover as described in section 5 2 Disconnect the interface from the power Supply motor position sensor and LED Hall sensor PCB 3 Loosen the interface fastening screw 3 4 turns 4 Pull the interface slightly towards the outer housing and then lift it straight up 5 Toreplace interface follow step 1 4 in opposite order The interface is equipped AR lle u ed E with 2 guiding pins in the bottom These TE needs to align with the holes in the w A Vi position sensor holder during replacement Fig 21 Interface removal Fig 20 Interface guiding holes 6 Re configure actuator as described in section 3 3 Rev 8 Page 18 of 28 ELTORQUE 4 5 Troubleshooting Prob
6. control interface inae Control Interface functionality cable recommendations etc is described in the Technical Manual Eltorque Interfaces 5 Bridge er oo Signal GND oNIB TxD RxD on Close Geen os Common Out 3 3 Configuration of actuator The QT2500 actuator is configured electronically using the Eltorque Manager 3 software and a USB configuration cable Manager 3 is distributed by e mail or can be downloaded from our website while the configuration cable can be purchased from local Eltorque distributor or the head office in Norway See page 1 for contact information The following parameters can be configured End positions Closed and Open Speed Torque and Near Closed region Fieldbus address Node ID for CANopen and Modbus Invertion of input and output for Digital and Analogue End positions and fieldbus address are mandatory while the other parameters can be changed to achieve better valve control performance 1 Install Eltorque Manager 3 and if Manager 3 required driver for configuration cable Driver Installation file on your computer B CDM_setup Managers setup version 3 1 m Fig 11 Eltorque Manager 3 installation files Rev 8 Page 12 of 28 Q ELTO RQUE User Manual QT2500 2 3 4 Make sure actuator has power and that the indicator LED is lit before attempting to connect actuator with Eltorque Manager 3 Connect configuration cable
7. li remove crank handle and refit Ad x it onto its holder PS 6 Refit spring spline and MO shaft cover NB Max 9 Nm Fig 5 Manual operation Note The actuator has a sensor which is sensing that the MO shaft cover is removed Actuator cannot be operated remotely until the cover is replaced and tightened against the top cover The actuator s indicator LED will be Red when cover Is removed and motor current will be switched off Rev 8 Page 9 of 28 ELTORQUE 3 INSTALLATION 3 1 Mounting actuator on valve Before mounting actuator please make sure there is sufficient space for manual operation above and around tt 1 2 Apply grease on valve spindle to ease mounting and avoid corrosion Lift actuator onto valve utilizing the 3 lifting devices on the actuator s center flange Align valve spindle with valve adapter and lower actuator onto valve flange Note Keep hands away from the valve flanges to avoid crushing damages Use crank handle on manual operation shaft to turn actuator and align fastening holes of the valve flanges Note In order to achieve optimal functionality of valve position indicator actuator should be positioned as shown on Fig 5 Insert valve fastening screws and if applicable lock washers Tighten fastening screws to the specified torque Rev 8 User Manual QT2500 Fig 6 QT2500 on valve Fig 7 Position adjustement Page 10 of 28 Q ELTQ RQUE User Manual QT2
8. s internal temperature becomes too high it will send out an alarm Signal via the control interface Should the temperature continue to rise the actuator will shut down the motor until temperature decreases to a safe level To avoid problems with over temperature alarms and actuator shutting down duty cycle requirements should be considered before selecting actuator p telose Leet Loos Leet tpos Valve position I Time Fig 3 Open Close and positioning duty Actuators used for Open Close duty either open or close the valves intermediate positions are not approached The valves are rarely operated and the interval between operations may be a few minutes or even several months Open Close duty will be relevant for QT25000 actuators with Digital control interface Actuators used for positioning duty will approach defined intermediate positions to set a Static flow through a pipeline applicable positions also include Open and Closed Positioning duty will be relevant for QT2500 actuators with Analogue or Fieldbus Interface For both these duty types the same maximum continuous running time tese OF tpos IS 5 minutes followed by a rest period trest of minimum 5 minutes Rev 8 Page 7 of 28 Q ELTIO RQUE User Manual QT2500 trest tmod pr Valve position Time Fig 4 Modulating duty Modulating duty applies for actuators used on control valves where accurate and quick control of flow level temperature
9. the manual operation shaft of the actuator The shaft has a 12x12 mm square on the end hence can a standard 7 pipe socket fit onto it Torque wrench must have a torque range of at least 0 10 Nm and accuracy of 0 25 Nm Output torque is calculated by multiplying measured torque with a factor of 300 i e 8 3 Nm corresponds to 2500 Nm 97 100 area not configurable Fixed accel decelaration ramp Torque is the same as in the travel area Status Open Running and holding torque options 500 1000 1500 2000 2500 Nm Speed 50 100 150 2007 rom 100 Max torque at 200 rpm is 2000 Nm Near closed area Configurable 0 20 Closed tolerance Configurable 0 10 Status Closed 0 ei pas0 D ox Running and holding torque options 1000 1500 2000 2500 Nm Speed 50 100 150 rpm Fig 14 Torque speed and region settings Under Fieldbus settings you can set the Node ID of actuators with CANopen or Modbus Control Interface It is important that all actuators in the network have a unique Node ID and that it is set correctly according to the layout of the control system Incase the actuator has Analogue or Digital interface the Fieldbus settings will be replaced by settings related to calibration and invertion of input and output signals Rev 8 Page 15 of 28 a ELTQ RQUE User Manual QT2500
10. to a USB port on your computer Start Manager 3 Connect cable to Actuator s configuration connector Fig 12 Connection of configuration cable Press Connect to establish communication with the actuator select appropriate configuration values depending on valve and control system see section 3 4 for more information Use Crank Handle to move actuator and valve to closed position Press Set C amp O and Closed is set to the actual position while Open is set 90 away in counter clockwise direction If further adjustment of end positions are required move actuator to desired position and press Set Closed or Set Open Press Hall Disable and Open to move valve to open position Press Close to close valve again Disconnect configuration cable and refit top cover Check that indicator LED changes from Red to Yellow when top cover Is in place Rev 8 Page 13 of 28 a ELTQ RQUE User Manual QT2500 GR Eltorque Manager v3 2 0 E LT CH R CH U E L i d Configuration Advanced Actuator type Actuator type QT 2500 EA N D Interface Modbus SW version 0 1 5 Compiled 2075 09 11 59 55 Seral no 121 Po Pos 0 Closed 6 Quick settings fenc 891 PENN 150 3 Temp 44 C Torque normal range Nm 1000 wi 9 Close Speed near closed rpm 100 J C Torque near closed Nm 1500 v _ Near closed region TS 10 4 WE Closing time 42s 6 Fieldbus settings
11. 4 MAINTENANCE SERVICE AND TROUBLESHOOTING 4 1 Maintenance The QT2500 is in principle maintenance free all bearings and gears are lifetime lubricated and components are designed to last throughout the actuator s lifetime It is however recommended that the actuator is inspected regularly to reveal any damages caused by mechanical impact corrosion etc Top cover gasket and manual operation shaft seal should be lubricated with suitable lubricants if they appear to be dry 4 2 Internal construction All replaceable components are located inside the actuator s motor and electronics housing Remove the top cover to provide easy access to replaceable components Fig 16 Removing top cover Rev 8 Page 16 of 28 Q ELTO RQUE User Manual QT2500 omponent overview 1 Control interface and connection terminals Position sensor below interface AC DC Power supply Interface power supply connector Interface motor connector Bracket PSU amp Motor Motor with manual operation shaft LED Hall sensor PCB Valve position indicator 110 240 V AC DC connection ord ee ee Fig 17 Internal components 4 3 Internal wiring LED and hall sensor sxx PSU 1 PSU 2 40V 40V aa 150W 150W 9993 To ad A sensor 80 V 40 V CONTROL INTERFACE GND Fig 18 QT2500 connection schematics Rev 8 Page 17 of
12. 500 3 2 Electrical installation Electrical installation can only be designed and made by personnel with the appropriate skills and competence Ensure all such work is done according to applicable laws and regulations 1 2 Make sure fuses are disconnected before connection of power supply cables is started em 3 Install the power supply W cables through the cable A Loosen the top cover fastening screws Remove actuator s top cover to gain access to connection terminals Fig 8 Removing top cover glands on the right side and connect them to the L N and PE GND terminals Install the control signal canes SENER the cable glands on EF the left and connect them according to specification below Fig 9 Connection terminals location Rev 8 Page 11 of 28 Q ELTIO RQUE User Manual QT2500 QT2500 QT2500 Analogue Control Interface CANopen Control Interface Incoming E Outgoing ge for ow CAN_L o Signal GND om terminal resistor on CAN_H CA Brid o Signal GND omCAN L ow Analogue Out o Analogue Out o Not in use om Analogue In l E i O iS 1 Oo GE GG ANN Ke QT2500 Modbus Control Interface Incoming E O a 2 gt 0 Common In B TxD RxD Sie TxD RxD e terminal resistor A TxD RxD 8 oO lt D att 19293 45 Ol OJ O OC Fig 10 QT2500
13. Spe Baudrate Set Closed SetOpen 7 5etC80 fi AUTO 8 Hal set E PO See WEST EN Peer Advanced settings visible LCOM4 opened LCOM4 opened Fig 13 Eltorque Manager 3 screenshot For more information about the functionality of the software please refer to the Eltorque Manager 3 Manual 3 4 Selecting correct configuration The Q12500 offers an easy but advanced configuration set up which allows accurate adjustments depending on valve and control system characteristics Please consider the following items when selecting configuration values The actuator s output torque is limited to 2000 Nm for motor speeds above 150 rpm Gei torque values according to valve s torque specifications with a suitable safety margin If torque is set too high the valve might be damaged in case it is blocked by e g foreign objects inside pipe On butterfly valves the maximum torque is required to move disc in and out of gasket Hence should only the torque in the near closed region be set according to the valve s specified operation torque Torque in the travel area will be considerably lower Rev 8 Page 14 of 28 Q ELTQ RQUE User Manual QT2500 Ball valves tend to have a constant torque through the whole operation area but the maximum torque is reached when the valve movement starts so called breakaway torque The actual operation torque of the valve can be checked by attaching a torque wrench with measuring gauge to
14. d valve mounting holes either fit directly onto the actuator or alternatively consider spindle adapters and valve brackets The QT2500 has replaceable guidance ring and valve adapter which can be customized to fit directly onto most valves Max operation torque The actuator must have sufficient torque to operate the valve in all applicable conditions The QT2500 s maximum torque will derat below 2500 Nm at motor speeds above 120 rom but speed can be set lower and torque higher in the valve s near closed region Closing time This is usually determined as a part of the process development In some cases the closing time should be as short as possible if the valve for example is shutting down a system in case of failure In other cases it is desired with a longer closing time to avoid shock waves in pipe systems with high pressure or flow Remote Control The QT2500 can be controlled remotely by four different types of control Digital Open Close Analogue 4 20 mA Modbus Fieldbus max 31 actuators per network CANopen Fieldbus max 127 actuators per network For more details about the functionality of these Control Interfaces refer to the Technical Manual Control interfaces for Eltorque QT2500 Valve actuators Additionally the actuator can be configured and controlled from a standard computer using a dedicated cable and software tool Eltorque Manager 3 Rev 8 Page 4 of 28 Q ELTQ RQUE User Manual QT2500
15. etc is desired The actuators will be controlled automatically by a regulator or PLC depending on process data from sensors like flow meters level and temperature sensors and some applications might require valve position adjustments within intervals of a few seconds This kind of operation puts higher demand on the actuator in terms of accuracy wear resistance low internal heat generation and good heat dissipation Modulating duty is relevant for QT2500 with Analogue or Fieldbus Interfaces Running time for modulating duty is limited by the relative on time tmod trest lt 0 5 The duty type limitations stated above applies for maximum operation temperature and torque see section 2 1 If operating temperatures and or torque are lower the actuator can be operated more than the duty type limitations stated above Rev 8 Page 8 of 28 Q ELTQO RQUE User Manual QT2500 2 5 Manual operation In case of power failure control system error or another fault preventing normal operation of the actuator it can be operated manually without the need of additional tools 1 Unscrew and remove Manual Operation shaft cover 2 Loosen the spring spline holding the crank handle 3 Attach crank handle on MO shaft 4 Turn Clockwise to close or Counter clockwise to open valve N Valve position can be seen on er SS the visual indicator in the a 4 4 ES center of the actuator s top Ae gt cover Kg 5 When MO is completed
16. for manual operation 10 Guidance ring fastening screws 11 Guidance ring with valve flange 12 Valve spindle adapter 13 Lifting devices max 80 kg load each Che NS Bottom view Fig 2 External construction Rev 8 Page 6 of 28 Q ELTO RQUE User Manual QT2500 2 3 Operating conditions The Q12500 1 0 is especially suitable for use below deck on ships and other offshore vessels due to its compact design low power consumption and robust construction It can also be used in other applications as long as the following criterias are met Operating temperature is kept within specified limits Actuator is placed indoors and not exposed to direct sunlight Protected from extensive corrosive atmospheres like on open deck of ships or other areas exposed to salt water spray Cleaning with strong alkaline or acidic chemicals can also cause corrosion problems Actuator must not be placed in hazardous areas where the presence of explosive atmospheres might cause explosion hazard 2 4 Actuator duty type When electric valve actuators operate they generate internal heat due to thermal loss in motor and control electronics The QT2500 combines low power consumption with high efficiency to ensure that internal thermal loss is kept low Still duty cycle needs to be considered when designing the valve control system to ensure that the actuators can operate the valves without over heating In case the actuator
17. g to signals Control Sp ee from an overall control system e g PLC or other type of electronic controller The set up of parameters which affects the actuator s performance Configuration and behaviour Area in which the permanent or periodical presence of explosive Hazardous area substances causes a risk of explosion A Programmable Logic Controller is a digital computer used for PLC automation of industrial processes such as control of machinery on factory assembly lines measurement and control of process plants etc Digital Control Simple control utilizing relays on off switches and indicators Allows H only Open or Closed functionality for a valve actuator Step less control utilizing analogue current or voltage signals e g 4 20 C mA 0 10 V etc Allows positioning of the valve actuator between Open ontrol and Closed A fieldbus is an industrial computer network for real time distributed control of various devices including valve actuators When Eltorque valve actuators are controlled by Fieldbus the functionality is extended in terms of positioning commands feedback and configuration The Eltorque Modbus interface is using RS 485 serial communication utilizing the Modbus protocol Modbus Is a fieldbus which allows communication with max 31 Modbus i e actuators connected to the same master slave network Master slave means that the Modbus controller is a master which Fieldbus Control
18. ieqencuateqehenekeemecsseqeusaesaieueaeseecnenmnebenaqcnaeemencues 4 5 9 18 VE EEE EE NESEN 4 5 6 7 8 9 11 12 18 20 21 Rev 8 Page 23 of 28 Q ELTQ RQUE User Manual QT2500 5 5 Control system examples Operator Station 17 touch monitor compact PC Mounted in PLC cabinet door Master panel ETHERNET Digital IO PUMP 1 CAN OPEN Pump control Start stop command PUMP 2 Started stopped feedback Failure feedback Power supply 230VAC 50 60Hz CAN OPEN Fig 28 Stand alone valve and pump control with operator stations Rev 8 Page 24 of 28 Q ELTQ RQUE User Manual QT2500 Main control Main control system 1 system 2 NN KEE ETHERNET Ethernet to CANopen Converter for Valve Control Power supply Power supply 230VAC 50 60Hz CANopen 230VAC 50 60Hz serial power z z e serial power Loop 1A Loop 1B le B Loop 2A Loop 2B Loop 3A Loop 3B Loop 4A Loop 4B Fig 29 Valve control system as an integrated part of a larger control system Rev 8 Page 25 of 28 Q ELTQ RQUE User Manual QT2500 Gene Page 26 of 28 Q ELTO RQUE User Manual QT2500 5 6 Notes Gees Page 27 of 28
19. it in standby mode for 15 minutes or more Actuator has over heated and the motor current is shut down to prevent damage Make sure surrounding temperature is within limits and that the duty type requirements are followed See section 2 for more details Valve operation torque is too high please check torque by manual operation OR Actuator torque has been set too low increase it by using Eltorque Manager 3 as described in section 3 3 Faulty control system please ask system vendor for support OR Problem with control signal wiring please contact local Eltorque agent for support Page 19 of 28 Q ELTQ RQUE User Manual QT2500 5 APPENDIX 5 1 Mounting adapter and guidance ring Normally adapter and guidance ring are mounted onto the actuator from factory But in cases where valve spindle and or flange are non standard it might be favourable to replace the standard parts with a customized adapter and or guidance ring Please contact Eltorque if you wish to customize these parts 1 Make sure valve position indicator is pointing OOO e towards closed Adjust position with crank handle GP C G if required ref Fig 11 C Fig 23 Closed oriention of valve position indicator 2 Putthe 8 adapter pins into the adapter and secure them with a suitable rubber band 3 Apply grease to the adapter pins and the adjacent edges of the adapter This will make assembly easier and protect against corrosion Fig 24
20. lem description No light in indicator LED No response from actuator on the control system Indicator LED is Red The actuator does not respond to control signals On a fieldbus system the actuator gives torque alarm Indicator LED is Red The actuator responds normally to control signals On a fieldbus system the actuator gives temperature alarm Indicator LED is Red The actuator does not respond to control signals On a fieldbus system the actuator gives temperature alarm Indicator LED is Red The actuator attempts to move valve when a control signal is given On a fieldbus system the actuator gives torque alarm Indicator LED is normal The actuator does not respond to control signals On a fieldbus system the actuator is not available Rev 8 User Manual QT2500 Cause amp solution No power supply check fuses and wiring Supply voltage can be checked using a voltage meter L N voltage should be 110 240 V AC or DC Voltage on Interface power supply connector should be 40V on black blue wires and 80V on black red wires Press measurement probes into the connector grooves to obtain easy access to current conducting metal JM Fig 22 Interface power supply connector Manual operation shaft cover not in position Actuator s internal temperature is 10 C or less from the motor current shut down limit If possible allow actuator to cool down by leaving
21. n TM 14 4 Maintenance service and troubleshooting nn rvanvrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnr 16 EEE e 16 22 METAN 16 25 MEN needed 17 4 4 Interface replacement A 18 15 TENNE 19 E APENES ee 20 5 1 Mounting adapter and guidance mg 20 DE EN VE 21 5 3 Ordering information rrrnnnennnnennnnennnnernnnennnnennnnennnnennanennnnennnnennnnennnnennanennnsennnnennnn 23 B MAR EE 23 S NU e E 27 Contact information Eltorque AS N 7125 Vanvikan Norway Phone 47 74 85 55 20 Fax 47 748555 12 Web www eltorque com Rev 8 Page 3 of 28 Q ELTO RQUE User Manual QT2500 1 INTRODUCTION Eltorque offers a model range of electric valve actuators suitable for use in a wide variety of industrial environments The Eltorque actuators are characterized by Compact size and good torque to size weight ratio Flexible control interfaces for easy integration with a wide range of control systems Low power consumption Electronic configuration of speed torque and other parameters Easy and cost effective installation Maintenance free The QT2500 is suitable for use on part turn valves with an operating torque between 800 and 2500 Nm Most part turn valves utilizes quarter turn 90 movement but the QT2500 can easily be configured to an operation area within the range 0 359 During the purchasing process it is important to consider the following parameters Valve interface It must be checked that the spindle an
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