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Installation Manual

1. ELTORQUE Installation Manual Eltorque actuators QT250 and QT800 Installation Manual QT250 and QT800_rev C ELTOQRQUE Revision history Revision Date Done by Approved by A 17 05 09 MG B 28 05 2010 MG C 16 11 2010 MG D E First edition Added general field bus description and before installation New logo and document references m olo w gt Other documents Usermanual QT250 and QT800 Usermanual QT250 2 0 Usermanual QT800 2 0 Usermanual QT2500 Di A Go Do Sa Technical Manual Eltorque Interfaces ELTOQRQUE ADDRESS Lyng Industrial Park 7125 Vanvikan Norway Document may be subject to change without prior notification GLO OPERATING TELPHONE NUMBER 47 74 520 FAX NUMBER 47 74855512 ES COMPANY E MAIL info eltorque no CORPORATE WEBSITE www eltorque no REGISTER OF BUSINESS ENTERPRISES NO 976 944 968 Installation Manual QT250 and QT800_rev C a ELTU ROUE O N ech Contents EE 3 Ge e D ME 4 WAST AMM EE 4 s Pad We e E A 3 kl Generalen E E a A E 4 Si et POC IS ean E S 4 3 2 Cable and cable QUANG ada csssssscecescecseice sscsag es weneceuainnsapdecenseneewensnalsbusemneesienn cs 5 cial BER 21 EH 5 E ee EEN 6 33 MEA WTC se ce oe teens cee bate rE dee veal eevee EEE ERE a 9 E ke EEN 9 332 ee 9 34 Ee EI 10 34 1 SRM EN 10 3 4 2 ele gt 11 3 5
2. Cover for manual operation wheel Other adapters and brackets can be delivered upon request please contact Eltorque AS 5 3 Service kit for QT250 and QT800 Service kit for Eltorque actuator Additional kit for connecting to CANopen bus loop Additional kit for connecting to Modbus loop 900 01 QT series configuration cable for connection to service port on actuator 900 001 1 QT series configuration cable EX version for connection to service port on actuator 900 002 QT series configuration software for PC Eltorque Manager 2 0 20 Installation Manual QT250 and QT800_rev C ELTOQRQUE 6 Appendix 6 1 Datasheet configurable General QT250 QT800 Power Supply 110 230VAC 50 60Hz Power consumption standby Max 60W Power consumption running Max 100W Max 100W Operating Torque configurable Max 250Nm Max 800Nm Holding Torque configurable Max 250 Nm Max 800Nm Opening Angle 0 90 deg Opening Time configurable 13 60 sec 90 deg 40 180 sec 90 deg Operation speed configurable 0 120 RPM 0 120 RPM Temperature limits 25 to 55 deg C 1 0 25 to 70deg C 2 0 Operating area Control of butterfly ball and three way 0 90 valves Valve dimensions Butterfly DN50 DN200 PN16 Butterfly DN200 DN350 PN16 Upper dimension limit depends on type of valve and pressure PN Shaf
3. Field DUS SOM EEN 11 36 Oe 12 3 61 EIERE 12 3 6 2 Procedure sssssesessrrrreerrrrrrsrrrreerrrrreserrrresnrrrrsartutenrrrreeerrreenerereeernnt 13 37 e Kl E 14 Ps AC CL e Eeer 14 Sete ee 14 COMMISS ONINY E 15 EE EE 15 4 2 Analogue or digital interface cad cctcnc dee cemscatenecente ds veiemanoumsineemucseeddeseaueceeeeeext 16 4 3 Modbus and CAN Open Imtertace nee 16 4 4 Actuator configuration sencrsnenoninoncnononen nnn nonr nn 17 Order INTOMMAUOMN EE 18 5 1 Spare parts list for QT250 1 0 ssssssssssssnesseseserrnrrressserrrrnnnrnsserrrrnnnnnnesneernnne 18 5 2 Spare parts list for QT800 1 0 secccccscstesccsccctetstehedanceciectoiedeessdarctebaleleleceesanans 18 5 3 Service kit for QT250 and QT800 wei cesisccccsuscaatiencseredeudcdiesantieassenoconpsensiexieanbede 19 elei Le EE 20 6 1 lee 20 6 2 Ee 21 6 2 1 Example Modbus AEN 21 6 2 2 Example leger eet 21 Installation Manual QT250 and QT800_rev C a ELTQ RQUE 2 Before installation For field bus installation there are some rules that need to be followed to ensure that the actuators will work properly e Recommended cable length for Can communication is 300m per but this depend on quality and dimension of cable With better quality the cable length can be longer e The loop list should be finalized and approved before installation of cable is started e The resistance of the CAN loop should be 120 ohm If the installation is started in one end of the cable it
4. Switch 6 1 Switch 7 2 Switch 8 4 Switch 9 8 14 2 4 8 15 the rest OFF Address 25 Switch 6 1 Switch 9 8 Switch 9 16 1 8 16 25 the rest OFF Address 30 Switch 7 2 Switch 8 4 Switch 9 8 Switch 9 16 2 4 8 16 30 the rest OFF The field bus loop must be terminated in each end this is done by setting DIP switch 1 to ON See Fig 4 3 6 2 Procedure 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 Special requirements apply for installation in hazardous locations 1 Update loop list with correct termination order Terminal order is the physical order the actuators are connected on the loop it might not be the same as bus address See Appendix 6 2 for example of looplist 2 Make sure cable used is according to specification in Table 1 3 Make sure cable input through gland is according to description in Fig 3 4 Connect power to the actuator Power cabling can be done individually to each actuator or the actuators can be connected in series Update the loop list with information about which fuse the actuator is connected to 5 Connect the signal cable to the incoming and outgoing terminals 6 Terminate the field bus loop in the last actuator termination order by setting DIP 1 to ON switch if present 7 Measure loop to make sure it is terminated and all actuators c
5. termination of bus this is done by DIP switch on Modbus fieldbus more info in chapter 3 5 Installation Manual QT250 and QT800_rev C LU ELTQ RQU E 3 3 Digital interface 3 3 1 General The digital interface allows simple Open amp Close operation of valves i e you can command the actuator to close or open the valve The actuator provides feedback when the valve is closed open or in alarm status The connection terminals are located inside the Eltorque Control box All terminals can accommodate wires of cross section 0 5 2 5 mm ELTORQUE ELTORQUE X1 Digital Control Interface Fig 5 Digital control interface The Common input terminal 1 is active and has an internal power supply of 15 V 50 mA Do not attempt to connect an external supply to this terminal as it can damage the control interface 3 3 2 Procedure 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 Special requirements apply for installation in hazardous locations 1 Make sure cable used is according to specification in Table 1 2 Make sure cable input through gland is according to description in Fig 3 3 Connect power to the actuator Power cabling can be done individually to each actuator or the actuators can be connected in series 4 Connect the signal cable to the input and output terminals
6. valve by using four screws size depend on flange interface 3 2 Cable and cable glands 3 2 1 General 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 Special requirements apply for installation in hazardous locations Cable requirements as follows Cable ee parameter Digital Analogue Modbus CAN Open 1 2 1 2 Number of 7 6 Twisted pair Twisted pair for conductors for TxD and CAN_H and RxD signals CAN_L signals 2 0 5 1 5 mm 0 5 1 5 mm Cross section The transmission range increases with larger cable cross section Not mandatory but is recommended in case Shield the actuator is placed in conjunction with Reais ise SES eable alande equipment emitting high levels of q g disturbances Nominal impedance Max 100 Q 120 Q Max 42 pF m Capacitance Transmission range increases with lower capacitance Installation Manual QT250 and QT800_rev C a ELTU ROUE Length related Max 100 mQ m Max 70mQ m res Specific line 5 ms m delay Max 500m baud Max 1000 m rate 50kbit s Cable length 500 m Max 250m baud rate 125kbit s Terminal Yes at both ends resistor Table 1 Cable specification 3 2 2 Procedure There are two types of terminals used On the non EX versions spring loaded terminals are used while on the EX
7. version screw terminals are used On screw type terminals it is recommended to use appropriate ferrules for multiconductor wires On spring loaded terminals ferrules are not recommended regardless of wire type Fig 2 Installation with spring loaded terminals The Eltorque control box has 5 threaded holes for cable glands 5x M20 Installation Manual QT250 and QT800_rev C a ELTO RQUE STEP 1 Select gland according to cable diameter if EMC remove isolation and mount as described in figure IP 68 cable glands should be used to i ensure a water tight connection STEP 2 Tighten the gland firmly to make a good sealing and strain relief Fig 3 Detailed drawing of cable gland If field bus is chosen as interface the cabling of the signal cable can be done as in Fig 4 There are incoming and outgoing terminals that are connected internally so that it should not be necessary to have several cables in each terminal A detailed description of terminals on the different interfaces can be found in chapter 3 3 to 3 7 Installation Manual QT250 and QT800_rev C a ELTO RQUE Actuator 1 Actuator2 D ELTORQUE O ELTORQUE 220VAC aa Shi 16A shaped Slow blow X1 CAN Open Control Interface Eltorque Valve Control Interface E VCl X1 CAN Open Control Note CAN bus to be terminated in last actuator on loop Fig 4 Example of cabling on CAN open field bus only difference on Modbus is
8. 068 2 2 IEC 60068 2 30 IEC nvironmental 60068 2 1 Other Approvals CE labling 6 2 Looplist 6 2 1 Example Modbus Valve information Information to be filled necessary to decide Torque information Type of motor in during installation type of actuator necessary to decide 1 0 indoor use Term order is the DN dimension type of actuator 2 0 outdoor use physical succession PN pressure see figure below Information from Lyng Motor AS Information from customer ___Torque Nm _ Actuator _Modbus_ Loop term Mmea SE Operate Holding timit 0 10 Type Serial nr Type SW Serial nr _ nr ES _1 361 36 Oreg 100 16 15 so 70 200 0 4 ar250 5742 10 0 9 6 6574 1 s Le a a i TECH ce ie vc beer A unig ID for valve SFI is one Closing time type on standard Min 13 sec QT250 other types of ID Max 180 sec QT80D might be used Example Type of actuator No other QT250 Loop number equipment than QTB00 To one PLS there are actuators on QT2500 normally two loops each circuit connected 6 2 2 Example CAN open Max 127 on one loop both A Valve information Information to be filled and B segment necessary to decide Torque information Type of motor in during installation Recomended number is 100 type of actuator necessary to decide 1 0 indoor use Term order is the due to service access and type of actuator physical success
9. 11x11 10 072 Handle for easier manual operation of actuator Cover for manual operation wheel Other adapters and brackets can be delivered upon request please contact Eltorque AS 5 2 Spare parts list for QT800 1 0 Item number Item 800 110 1 QT800 1 0 complete actuator with digital interface 19 Installation Manual QT250 and QT800_rev C QO ELTQ RQUE 800 120 1 QT800 1 0 complete actuator with CANopen interface 800 130 1 QT800 1 0 complete actuator with analogue interface 800 140 1 QT800 1 0 complete actuator with Modbus interface 800 000 1 QT800 1 0 quarter turn actuator 800 010 1 QT800 1 0 digital interface 800 020 1 QT800 1 0 CANopen interface 800 030 1 QT800 1 0 analogue interface 800 040 1 QT800 1 0 Modbus interface 800 111 1 QT800 2 0 complete actuator with digital interface 800 121 1 QT800 2 0 complete actuator with CANopen interface 800 001 1 QT800 2 0 quarter turn actuator 800 011 1 QT800 2 0 digital interface 800 021 1 QT800 2 0 CANopen interface 800 115 1 QT800 2 1 complete actuator with digital interface EX version 800 125 1 QT800 2 1 complete actuator with CANopen interface EX version 800 015 1 QT800 2 1 digital interface EX version 800 025 1 QT800 2 1 CANopen interface EX version Adapter SQ27x27 SQ22x22 10 072 Handle for easier manual operation of actuator
10. Q RQUE 5 Order information To help us process your order we require some information e Valve type e Valve dimension DN and pressure PN e Torque requirements e Shaft interface e Flange interface e Regulation or ON OFF e Interface Digital analogue CANopen or Modbus e Environmental requirements Open deck EX or indoor 5 1 Spare parts list for QT250 1 0 Item number Item 250 110 1 QT250 1 0 complete actuator with digital interface 250 120 1 QT250 1 0 complete actuator with CANopen interface 250 130 1 QT250 1 0 complete actuator with analogue interface 250 140 1 QT250 1 0 complete actuator with Modbus interface 250 000 1 QT250 1 0 quarter turn actuator 250 010 1 QT250 1 0 digital interface 250 020 1 QT250 1 0 CANopen interface 250 030 1 QT250 1 0 analogue interface 250 040 1 QT250 1 0 Modbus interface 250 111 1 QT250 2 0 complete actuator with digital interface 250 121 1 QT250 2 0 complete actuator with CANopen interface 250 001 1 QT250 2 0 quarter turn actuator 250 001 1 QT250 2 0 digital interface 250 021 1 QT250 2 0 CANopen interface 250 115 1 QT250 2 1 complete actuator with digital interface EX version 250 125 1 QT250 2 1 complete actuator with CANopen interface EX version 250 015 1 QT250 2 1 digital interface EX version 250 025 1 QT250 2 1 CANopen interface EX version Adapter SQ17x17 SQ14x14 Adapter SQ14x14 SQ
11. When re assembling the control box with the actuator make sure no wires are jammed between the surfaces It is also recommended to apply some seal lubrication on the gasket to ensure the actuator remains water proof Installation Manual QT250 and QT800_rev C a ELTQ RQU E 3 4 Analogue 3 4 1 General The analogue interface allows control of regulation valves where positioning of the valve is needed The actuator provides continuous feedback of its actual position for comparison between desired and actual position Both positioning and feedback signals are analogue 4 20 mA The control interface also has a digital alarm output which is triggered by various failure scenarios The connection terminals are located inside the Eltorque Control box All terminals can accommodate wires of cross section 0 5 2 5 mm ELTORQUE OELTORQUE x1 Analogue Control Interface GREEN aa T EE Analogue In Analague Out Analogue Out Analogue In Alarm 15 VDC GND 8 fo i E oO Hines 8 iLe jl Le l o Jl Fig 6 Analogue control interface Cr ia The analogue input and output are both passive and need to be powered from the PLC or other type of controller supply voltage 12 24 VDC See Fig 7 10 Installation Manual QT250 and QT800_rev C LU ELTQ RQU E ELTORQUE Analogue In Analogue Controller Fig 7 Analog interface connected to analogue controller 3 4 2 Procedure Electrical in
12. ators are correctly connected see Fig 12 3 7 2 Procedure 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 Special requirements apply for installation in hazardous locations 14 Installation Manual QT250 and QT800_rev C a ELTQ RQU E 1200 Update loop list with correct termination order Terminal order is the physical order the actuators are connected on the loop it might not be the same as bus address See Appendix 6 2 for example of looplist Make sure cable used is according to specification in Table 1 Make sure cable input through gland is according to description in Fig 3 Connect power to the actuator Power cabling can be done individually to each actuator or the actuators can be connected in series Update the loop list with information about which fuse the actuator is connected to Connect the signal cable to the incoming and outgoing terminals Terminate the field bus loop in the last actuator termination order either by shortening terminal 4 and 5 or by DIP switch if present Measure loop to make sure it is terminated and all actuators connected correctly see Fig 12 Acceptable resistance 60 68 5 Q Acceptable resistance 120 1370 Term Order 2 Term Order 1 Bus Loop 1A Bus Loop 1A Node ID Fieldbus Bus Loop 1B Bus Lo
13. e some rules that need to be followed to ensure that the actuators will work properly N O o gt o 9 Recommended cable length for Can communication is 300m per but this depend on quality and dimension of cable With better quality the cable length can be longer The loop list should be finalized and approved before installation of cable is started The resistance of the CAN loop should be 120 ohm If the installation is started in one end of the cable it is a good idea to measure the resistance after each new actuator that is included in the loop then you are sure that the installation is correct when all actuators are included Installation Make sure bus termination order is documented i e updated in loop list Test and verify wiring before power is switched on Power up system Check that all nodes are available on operator panel Check that actuators are connected to valves according to loop list i e valve with SFl number 314 118 connected to actuator with bus address 5 Use termination order to identify actuator and operate actuator from operator station while observing the valve to check for reaction If necessary configure actuators see chapter 4 4 Actuator configuration Actuators are normally configured and labeled with correct Node ID bus address and default parameter settings from factory Test actuator by setting open and closed signal from panel 10 Test stability for at least 24 hrs 4 4 Actuator confi
14. guration If commissioning is done by customer changing configuration cannot be done without purchasing the appropriate service kit See Chapter 5 Order information for detailed ordering information Manual for using configuration tool included in kit The actuators will be configured with default configuration from factory if nothing else is agreed upon If appropriate information is received from customer before shipping the actuators will be configured and labeled with bus address according to loop list 17 Installation Manual QT250 and QT800_rev C a ELTQ RQUE In addition to parameters seen in Table 2 there are several other parameters available for configuration tuning of torque and speed through the different phases between open and closed changing bus address and baud rate after changing Node ID and baud rate the actuator must be reset by using reset button in Eltorque Manager program configuring open and closed position default 0 90 if actuator is mounted according to specification QT250 QT800 Default Limit Default Limit Operating torque 220 Nm 250 Nm 750 Nm 800 Nm Holding torque 220 Nm 250Nm 500 Nm 800 Nm Opening Time 15 sec 13 60 sec 90 40 sec 40 180 sec 90 Torque Limit switch 0 4 200 Nm 0 10 30 250 Nm 0 4 700 Nm 0 10 105 800 Nm Table 2 Default values for configurable parameters 18 Installation Manual QT250 and QT800_rev C QO ELT
15. ion restrictions on cable length see figure below Ps pelea ee ae ae r 70 200 200 aso os a arso 32954 10 ose saer Jaia EN LESTLE ZE EL eee a f A uniq ID for valve SFI is one Closing time type on standard Min 15 sec QT250 other types of ID Max 180 sec QT800 Type of actuator No other equipment QT250 To on PLS there are iiss GE RE QTs00 normally two loops per QT2500 connected each loop has two segments see figure below might be used 22
16. is a good idea to measure the resistance after each new actuator that is included in the loop then you are sure that the installation is correct when all actuators are included 3 Installation 3 1 Mechanical 3 1 1 General Installation of the actuator to the valve should not be carried out unless the power supply is switched off and disconnected e The actuator can be optionally mounted but a hanging position should be avoided e The actuator has IP68 as enclosure which means that the actuator in worst case can be submerged to 5m for 1 hour but after a situation like this the actuator needs to be cleaned and checked for ingress of water or other liquid e The actuator should not be mounted in a location where the risk for damages due to external forces is large i e moving goods waves stepped on If this is the situation some extra protection should be installed Contact supplier for advice e Make sure that the correct actuator is mounted on the correct valve according to looplist 3 1 2 Procedure 1 Place actuator on valve Installation Manual QT250 and QT800_rev C a ELTU RQUE 2 Adjust the actuator s adapter and guide ring to the valve by turning both the valve and the actuator to closed position Remove cover to operate hand wheel the arrow in centre of operating wheel is pointing towards closed Closed position PIPE DIRECTON Fig 1 Installation of actuator on valve 3 Fasten actuator to
17. nd will respond 3 6 Modbus 3 6 1 General The Modbus interface allows control of regulation valves where positioning of the valve is needed The actuator provides feedback of its actual position and the operator can regulate the exact position from an operator station or panel if desired some configuration is also available Compared to analog or digital interface a bus solution will reduce the cabling significantly on larger systems The connection terminals are located inside the Eltorque Control box All terminals can accommodate wires of cross section 0 5 2 5 mm ELTORQUE ELTORQUE X1 Modbus Control Interface Q L Switch Bus address is configured by setting the last five DIP switches The configured address will be the sum of the switches enabled Dee ee Terminal resistor active 1 Terminal resistor not active Baudrate 19 2 kbits sec gt Baudrate 38 4 kbits sec Baudrate 38 4 kbits sec gt Baudrate 19 2 kbits sec Time delay 20ms gt TimedelayOms E Spare EI Node D 0 7 gt Nodeio o Node ID 8 10 Fig 9 DIP switch settings for Modbus control interface Fig 8 Modbus control interface J Spar Node D m E NS Node ID Node ID II ler oke ler ln ale KE 12 Installation Manual QT250 and QT800_rev C a ELTQ RQU E Example DIP switch address settings Address 5 Switch 6 1 and switch 8 4 ON 1 4 5 the rest OFF Address 15
18. onnected correctly see Fig 10 Acceptable resistance 120 1370 Acceptable resistance 60 68 5 Q 1200 Node ID 1 Node ID 2 Node ID 3 Node ID 4 Node ID Fieldbus Term Order 4 Term Order 3 Term Order 2 Term Order 1 Controller Acceptable resistance gt 1kO 13 Installation Manual QT250 and QT800_rev C a ELTQ RQU E Fig 10 Measuring loop resistance on Modbus loop When re assembling the control box with the actuator make sure no wires are jammed between the surfaces It is also recommended to apply some seal lubrication on the gasket to ensure the actuator remains water proof 3 7 CAN Open 3 7 1 General The CAN Open interface allows control of regulation valves where positioning of the valve is needed The actuator provides feedback of its actual position and the operator can regulate the exact position from an operator station or panel if desired Compared to a Modbus solution there are more configuration parameters available on Can bus The connection terminals are located inside the Eltorque Control box All terminals can accommodate wires of cross section 0 5 2 5 mm ELTORQUE ELTORQUE X1 CAN Open Control Interface f z Incoming Fig 11 CAN Open control interface The field bus loop must be terminated in each end this is done by connecting terminal 4 and 5 in the interface box There are two ways of measuring that the loop is correctly terminated and all actu
19. op 1B Node ID 1 Node ID 2 Controller Node ID 3 Node ID 4 Term Order 1 Term Order 2 Acceptable resistance gt 1kO Fig 12 Measuring resistance on complete loop to the left and on disconnected loop to the right When re assembling the control box with the actuator make sure no wires are jammed between the surfaces It is also recommended to apply some seal lubrication on the gasket to ensure the actuator remains water proof 4 Commissioning 4 1 General Commissioning can either be done by customer or by Eltorque service technician Do not open or close valves without having permission from responsible person on installation 15 Installation Manual QT250 and QT800_rev C a ELTU ROUE 4 2 Analogue or digital interface 1 2 3 Make sure all cabling is done according to specification in chapter 3 2 Test and verify wiring before power is switched on Power up system Check that the correct actuators are connected to the valve according to IO list or drawings If necessary configure actuator see chapter 4 4 Actuator configuration If operating panel is available test that opening closure and feedback signals are working Test stability for at least 24 hrs 4 3 Modbus and CAN Open interface 1 Make sure all cabling is done according to specification in 2 16 Installation Manual QT250 and QT800_rev C a ELTQ RQUE Before installation For field bus installation there ar
20. stallation 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 Special requirements apply for installation in hazardous locations 1 Make sure cable used is according to specification in Table 1 2 Make sure cable input through gland is according to description in Fig 3 3 Connect power to the actuator Power cabling can be done individually to each actuator or the actuators can be connected in series 4 Connect the signal cable to the input and output terminals When re assembling the control box with the actuator make sure no wires are jammed between the surfaces It is also recommended to apply some seal lubrication on the gasket to ensure the actuator remains water proof 3 5 Field bus solution The actuators with a field bus interface Modbus or CanOpen can very simplified be described as one signal cable from the control unit and to the first actuator and then continue to the next actuator and so on until you have a string with actuators Each actuator in the string has a unique address 11 Installation Manual QT250 and QT800_rev C a ELTQ RQUE When a command is sent from the control station and out on the Can bus the command includes the address of the actuator that is should go to Each actuator is presented with the command but only the one that have the unique address that is the same as in the comma
21. t size 17x17mm 27x27mm Flange interface F05 F07 and F10 F10 and F12 Duty type S3 50 15min Manual operation 20 turns on crank handle 90 movement on valve 70 turns on crank handle 90 movement on valve Mechanical description QT250 QT800 Weight 11 kg 21 kg Enclosure Anodized aluminum AL6063 Die cast aluminum ABS antistatic Anodized aluminum AL6063 Die cast aluminum ABS antistatic Outer dimensions WxHxD 156x229x210 mm 200x330x230 mm Protection Class IP 68 5m 1h Motor QT250 QT800 Construction Step motor Number of poles 48 48 Cooling element Motor current is switched off in case of over temperature Heating element The motor coils are also utilized as heating elements in case of low temperatures Gearbox QT250 QT800 Construction 3 step planetary gear 4 step planetary gear Transmission 1 82 1 291 Bearings Ball needle and bronze bearing Lubrication Maintenance free End switches Magnetic absolute encoder with adjustable end points Durability calculations Minimum 120 000 cycles Minimum 30 000 cycles 21 Installation Manual QT250 and QT800_rev C a ELTD RQUE Certificates QT250 QT800 Type Approval DNV GL CCS DNV GL CCS EMC EN 50081 2 EN 50082 2 EN 60945 Envi EN 60529 1991 EN 60068 2 6 IEC 68 2 52 IEC 60

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