ABB LME620-AI User Manual Download

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Operating Instruction

42/68-273-EN

Electrical Linear Actuator

LME620-AI/-AN (Contrac)

Rated force 4 kN (900 lbf)

Summary of Contents for LME620-AI

Page 1: ...Operating Instruction 42 68 273 EN Electrical Linear Actuator LME620 AI AN Contrac r Rated force 4 kN 900 lbf ...

Page 2: ...2 32425 Minden Germany Tel 49 551 905 534 Fax 49 551 905 555 CCC support deapr de abb com Copyright 2008 by ABB Automation Products GmbH Subject to change without notice This document is protected by copyright It assists the user with the safe and efficient operation of the device The contents may not be copied or reproduced in whole or in excerpts without prior approval of the copyright holder Co...

Page 3: ...rmation 10 1 14 Operating safety information 10 1 15 Maintenance safety information 10 2 Design and function 11 3 Installation 12 3 1 Actuator check 12 3 2 Installation position 12 3 3 Installation instructions 12 3 3 1 Valve requirements 13 3 4 Mounting examples 13 3 5 Assembly with the valve 13 4 Electrical connection 14 4 1 Cable shield 14 4 1 1 Signal part 14 4 2 Integrated Electronic Unit AI ...

Page 4: ...6 2 Brake adjustment 20 7 Alarms Errors 21 7 1 Definition 21 7 1 1 Alarms 21 7 1 2 Error 21 7 2 Alarm diagram 22 7 3 Error diagram 23 8 Trouble shooting 24 8 1 Electrical test values 25 9 Technical data 26 9 1 General information 26 10 Appendix 27 10 1 Permits and certifications 27 11 Index 29 ...

Page 5: ...evice 1 2 Intended use The actuators are used for operating final control elements valves vanes etc They may only be operated using the appropriate Contrac electronic unit Do not use these actuators for any other purpose Otherwise a hazard of personal injury or of damage to or impairment of the operational reliability of the device may arise In addition to these operating instructions the relevant...

Page 6: ...oided death or serious injury will result Warning Bodily injury The symbol in conjunction with the Warning message indicates a possibly dangerous situation If it is not avoided death or serious injury could result Caution Slight injuries The symbol in conjunction with the Caution message indicates a possibly dangerous situation If it is not avoided slight or minor injury can result May also be use...

Page 7: ...tion specifications for fuse protection 1 10 Blank for customer specific entry 1 For LME620 AI only 1 6 Operator liability The operators must strictly observe the applicable national regulations in their countries with regards to installation function tests repairs and maintenance of electrical devices 1 7 Personnel qualification The installation commissioning and maintenance of the device may onl...

Page 8: ...tural resources Through its publications ABB conducts an open dialog with the public This product solution is manufactured from materials that can be reused by specialized recycling companies 1 9 1 Information on WEEE directive 2002 96 EC Waste Electrical and Electronic Equipment This product solution is not subject to the WEEE directive 2002 96 EC and relevant national laws e g ElektroG in German...

Page 9: ...il and add desiccant Check that the desiccant is still effective on a regular basis During longer periods of downtime 6 months with thrust rod extended the chrome plated stem surface must be protected with a suitable anti corrosive agent Before recommissioning clean the thrust rod to avoid damage by the stripper and thrust rod gasket 1 12 Installation safety information Depending on how they are s...

Page 10: ...d accidentally by the repelling power of the valve when the brake is released Make sure that process forces are not exerted on the thrust rod Before switching on ensure that the specified environmental conditions in the Technical Data chapter or data sheet are complied with and that the power supply voltage corresponds with the power electronic unit When there is a chance that safe operation is no...

Page 11: ...inear movement The actuator thrust rod transfers the force directly to the final control element A continuous power electronic unit controls the actuator The electronic unit serves as the interface between actuator and control system During continuous positioning the power electronic unit varies the motor torque steplessly until the actuator force and the restoring process forces are balanced High...

Page 12: ...to rain snow and other environmental influences Make sure that the drive elements thrust rod and valve stem are not exposed to any additional vibrational loading equivalent to more than double the rated force e g by a spring coupling or a vibration absorber between thrust rod and valve stem The maximum rated force of the actuator must not be permanently exceeded Occasionally and for short periods ...

Page 13: ...2 Make sure the valve stem is aligned with the center of the bore and at right angles to the actuator seat permissible parallel deviation 0 1 mm 0 009 inch with regard to total stroke 3 Fasten the actuator to the yoke with screws of property class 8 8 tensile strength 800 N mm2 116032 pounds square inch yield strength 640 N mm2 93550 pounds square inch 4 Use the hand wheel to drive the thrust rod ...

Page 14: ...he data labels of the actuator and the electronic unit in order to ensure a proper hard and software assignment 4 1 Cable shield 4 1 1 Signal part Fig 5 Fitting the shield 1 Remove approx 2 cm of cable sheathing 3 from the end of the cable 2 Separate the shield and peel it back to its inner sheathing 4 3 Push the cable through the cable gland and fasten with clamp 1 4 Make sure that the shielding ...

Page 15: ...l plug to the integrated actuator electronic unit Fig 6 To switch the actuator to automatic mode AUT the following conditions must be met Digital inputs DI1 DI2 and DI3 must be activated via the operator interface Power must be on for the digital input DI1 AUT is activated via operator interface 4 3 Integrated Electronic Unit AI bus communication Fig 7 PROFIBUS DP ...

Page 16: ...connection is provided by a plug on the actuator and the terminals on the electronic unit Fig 8 To switch the actuator to automatic mode AUT the following conditions must be met Digital inputs DI1 DI2 and DI3 must be activated via the operator interface Power must be on for the digital input DI1 AUT is activated via operator interface ...

Page 17: ...EN LME620 AI AN Contrac 17 4 5 Electronic unit in field mount EAN823 bus communication Fig 9 PROFIBUS DP 4 6 Configuration of digital input output signals standard control 4 6 1 Standard Fig 10 Potential wiring for default assignments ...

Page 18: ... step controller Fig 11 Potential wiring for Downstream from step controller operation Important When operating the unit downstream from a step controller the selector switch must be in the position Important When DI1 is assigned with DC 24 V the electronic unit is write protected ...

Page 19: ...klash The motor brake locks the actuator in the current position if the power supply is cut off M00308 Fig 12 Ball bearing screw with nut cross section Manual mode allows you to move the actuator manually when the electrical power is off Caution Risk of injury When pressing the hand wheel lock restoring force from the valve may be present in the hand wheel To prevent the hand wheel from turning un...

Page 20: ... should be performed once the remaining calculated time has expired Inspection or maintenance is due after the time specified in the table Overhaul intervals Interval Measures 1 x per year Visual check of the gaskets for leaks change if necessary Change roller bearings and gaskets on motor and gearing Max every 10 years preferably once the calculated time before the next maintenance operation has ...

Page 21: ...e electronic unit The graphic user interface use to output the stored alarms 7 1 2 Error The actuator or electronic unit is in a critical state e g positioning time out which currently is impairing the actuator electronic unit process or persons The actuator is switched off and the actuator functions are no longer available Previous error messages are stored in the Saved Errors area in the electro...

Page 22: ...re Temperature of Electronic Unit upper limit lower limit upper limit lower limit Lubricant Elastom Motor Gear high low high low Monitoring ON Integr controller ON Behavior at critical temp MAN AUT Actuator Stop Safety pos last setpoint Actuator moves in desired operating mode Alarm Signal Saved Alarms Reset Option General Alarm Display ON ...

Page 23: ...ll Min speed Movement in incorrect direction Frequency converter end positions Position sensor memory error Flash error RAM error Watchdog monitoring activated Monitoring ON Error signal Error message via actual value ON Saved Failure Reset Option Analog output 1 3 5 mA with Low alarm 21 5 25 mA with High alarm General Failure Display ON ...

Page 24: ...e motor brake Check the winding resistance of the motor and brake Check the brake lock Binary inputs on the electronic unit are not wired Make connection The actuator does not respond Brake does not release no mechanical click Check the brake air gap approx 0 25 mm 0 010 inch and electrical connection to the brake Check winding resistance of the brake coil Actuator does not run in AUT mode althoug...

Page 25: ...Trouble shooting 42 68 273 EN LME620 AI AN Contrac 25 8 1 Electrical test values Fig 13 Winding resistance 5 at 20 C 68 F Motor L1 bl L2 sw 3 4 Ω L1 bl L3 viol 3 4 Ω Brake 50 Ω ...

Page 26: ...le between actuator and electronic unit Select from 5 m 16 ft 10 m 32 ft or 20 m 65 ft max 30 m 98 ft for electronic unit EAN823 max 480 m 1575 ft for electronic unit EAS822 read the data sheet for the electronic unit Weight approx approx 24 kg 53 lbs approx 20 kg 44 lbs Model LME620 AN LME620 AI Rated force 4 kN 900 lbf adjustable to 0 5 0 75 or 1x rated force Starting force 1 2 x rated force bre...

Page 27: ...y placing the CE mark on the model plate ABB Automation Products GmbH declares its conformance with the following directives EMC directive 89 336 EEC Machinery directive 2006 42 EC Important All documentation declarations of conformity and certificates are available in the download area of ABB www abb com instrumentation ...

Page 28: ... Telephone Fax E Mail Device details Type Serial no Reason for the return description of the defect Was this device used for working with substances which pose a threat or health risk F Yes F No If yes which type of contamination please place an X next to the applicable items biological F corrosive irritating F combustible highly extremely combustible F toxic F explosive F other harmful substances...

Page 29: ...l installation safety information 10 Electronic unit in field mount EAN823 bus communication 17 Electronic unit in field mount EAN823 standard 16 EMC directive 27 Error 21 Error diagram 23 F Functionality 11 G General information 26 General Safety Information 5 H Heat sources 12 I Inspection and overhaul 20 Installation 12 Installation instructions 12 Installation position 12 Installation safety i...

Page 30: ... 9 Storage period 9 Symbols and warnings 6 T Technical data 26 Technical limits 5 Time until next maintenance is required 20 Transport safety information 8 Trouble shooting 24 V Valve requirements 13 Visual check 20 W Warranty provision 6 Wear 20 WEEE directive 8 Winding resistance 25 Change from one to two columns ...

Page 31: ......

Page 32: ...thout notice Printed in the Fed Rep of Germany 09 2008 ABB 2008 3KXE161003R4201 42 68 273 EN Rev D ABB Limited Salterbeck Trading Estate Workington Cumbria CA14 5DS UK Tel 44 0 1946 830 611 Fax 44 0 1946 832 661 ABB Inc 125 E County Line Road Warminster PA 18974 USA Tel 1 215 674 6000 Fax 1 215 674 7183 ABB Automation Products GmbH Schillerstr 72 32425 Minden Germany Tel 49 551 905 534 Fax 49 551 ...

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