As-03.12.036 AMD Maintenance Draft

NMX07, NMX11 Maintenance instruction

REPLACING ENCODERS OF NMX07 AND NMX11

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NMX07, NMX11 Maintenance 2013-02-13 (A) AS-04.07.005 instruction

FOR COMMENTS AND APPROVAL AS-04.07.005 (A) 2013-02-13


© 2011 KONE Corporation All rights reserved. This document is intended to be used by people who are familiar with elevator maintenance and have received proper training on methods and safety as specified by KONE.

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FOR COMMENTS AND APPROVAL © 2011 KONE Corporation All rights reserved.

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TABLE OF CONTENTS 1

ABOUT THIS DOCUMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Purpose of this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Audience of this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Symbols used in this document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 Related documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 3 4 4 5

2

SAFETY AND MAINTENANCE TARGETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Maintenance method safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Environmental Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 Customer experience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 6 7 7

3

TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4

REPLACING THE MAGNETIC READER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1 Performing the safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 Removing the magnetic reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 4.3 Installing the magnetic reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5

REPLACING THE OPTICAL ENCODER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1 Performing the safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Removing the encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.3 Installing the encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

FINALIZING THE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.1 Finalizing the maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7

APPROVALS AND VERSION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8

FEEDBACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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13 13 15 16


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1

ABOUT THIS DOCUMENT

1.1

Purpose of this document This instruction describes replacing magnetic reader and optical encoder of NMX07 and NMX11 hoisting machines.

OPTIONAL : BARCODE

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NMX07 with example of machine data plate

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NMX07 with magnetic encoder

NMX11 with magnetic encoder


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NMX07 with optical encoder

1.2

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NMX11 with optical encoder

Audience of this document The main audience of this instruction are maintenance operatives who do maintenance work and their supervisors and line managers.

1.3

Symbols used in this document Symbol

Description General warning

Risk of electric shock


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Symbol

Description Remove the screw.

Loosen the screw. Do not remove it.

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Tighten the screw fully.

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Disconnect.

Connect.

Related documents – AM-01.03.001 Preventing falls from height when working on elevators, escalators and building doors – AM-01.03.002 Take 5 - Electrical safety when working on elevators, escalators and autowalks – AS-01.01.190 Environmental excellence-Maintenance – AS-01.03.101 On-site Maintenance Safety Manual – AM-04.05.056 NMX installation – AS-04.06.005 Replacing NXM07 and NMX11 hoisting machine in machineroomless elevator – AS-04.08.039 Replacing the brakes of hoisting machines NMX07 and NMX11 – AS-04.08.092 User instruction for electrical brake opening tool KM872759G01 – ASG-04.06.003 Preventive maintenance for NMX07 and NMX11 – Drive specific maintenance instructions, for example: • AS-11.65.040 Repair instruction for KDM drive system in KONE MonoSpace Special • AS-11.65.052 Repairing KDL16S


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WARNING! You need the drive specific instructions for the following tasks: - De-energizing the drive module. - Connecting the optical encoder cable to the drive module. (When replacing magnetic reader with optical encoder.) - Performing the drive commissioning after the encoder replacement.

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2

SAFETY AND MAINTENANCE TARGETS – Maintenance work must only be carried out by competent and qualified personnel. – Refer to AS-01.03.101 On-site Maintenance Safety Manual for general safety precautions and personal safety issues. – Take time to familiarise yourself with the elevator. – Ensure you have adequate information to do the work and fully understand all the possible effects of your actions. - IF IN DOUBT - ASK. – Talk to your supervisor if you have any doubts about the working method or safety related issues. – Any local variations to the method must be supported by a local method statement and risk assessment.

2.1

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Maintenance method safety

Note the following safety items when working with NMX hoisting machines: – General KONE safety regulations must be followed during the work. All normal safety measures required in elevator maintenance must be implemented. Local safety regulations must also be followed. – Refer to AM-01.03.002 Take 5 - Electrical safety when working on elevators, escalators and autowalks. The Take 5 safety initiative is designed for installation, servicing, maintenance and modernisation work done on the elevators. – Refer to AS-01.01.004 Take Care, End user safety in elevator maintenance for safe maintenance. – Refer to AM-01.03.001 Preventing falls from height when working on elevators, escalators and building doors to prevent fall hazards. – Be careful when opening screws and nuts to avoid dropping metal items into the pulley housings. Although the housings are protected with covers and brushes, it is possible that small particles catch in the pulley grooves. – The cover of the drive module must be kept closed always when not working with the module, even if the main power has been switched off. – WARNING! Inverter drives usually remain energized for about 5 minutes after power has been disconnected. DO NOT work on the drive, hoisting motor or braking resistor until you have verified that this energy has been discharged. Test equipment must be set to the 1000 VDC range. The test equipment must be checked before and after the test to ensure that it functions correctly. – WARNING! Before starting the work, check that you have identified correctly the drive module type and electrification type, and you have the correct drive specific instructions at hand. You will need them for safe de-energizing and for the parameter setting.


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– Some drive modules are able to run the elevator without encoder information. Refer to the drive specific instructions. Avoid unnecessary use of this operation mode. It may help, if the elevator does not move because of an encoder failure. Start jumps might appear. Start might fail if load weighing device is not working properly. This mode uses extra current, heats up the motor and causes stress for drive electronics. – No one is allowed to be on the elevator car roof, inside the elevator car or in the elevator shaft when driving without encoder information. – After removing the magnetic reader, do not put magnetized screw driver or other magnetized tools or objects into the hole where the magnetic reader was. It may damage the magnets inside the machine.

2.2

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Environmental Issues

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Hazardous waste material must be taken care of according to the local regulations and KONE Environmental Strategy. Refer to AS-01.01.190 Environmental excellence-Maintenance.

2.3

Customer experience

The focus of your work must always be customer satisfaction. To reach and exceed the customers’ expectations, be polite, constructive and co-operative, and communicate clearly. Remember that for customers, you represent KONE, so ensure that you handle or at least communicate all customer requests and feedback to the correct persons. For more information on how to deliver best-in-class customer experiences through behavior and communication, see the KONE Ambassador program in KONE intranet (search for Ambassador) or contact your supervisor.


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3

TOOLS Part number

Tool Multimeter (CAT III compliant), NOTE: To prevent short circuits and arcing, the maximum length of bare metal probe tips is 4 mm. (CAT III, IEC/EN 61010-031)

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Normal hand tool set

KM265173

Illustration/Note Fluke 179 (or equivalent) with insulated test probes (min. L = 100 mm) specified to 1000 VDC voltage.

Drive specific instructions Cable ties Work stool

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Refer to AS-01.05.007 Maintenance Tool Catalog.

Height approximately 700 mm

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Safety fences

For topmost landing


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4

REPLACING THE MAGNETIC READER NMX11

NMX07

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The following list describes the main work phases of the magnetic reader replacement: – – – –

4.1

Performing the safety measures. Removing the magnetic reader. Installing the magnetic reader. Finalizing the replacement.

Performing the safety measures Select one of the following according to the elevator type: – Performing the safety measures in machine-room-less elevator. – Performing the safety measures in elevator with machine room.

4.1.1

Performing the safety measures in machine-room-less elevator The elevator car roof is used as working platform. The following safety measures must be carried out before the actual work: Step Action 1 Drive the elevator car to the topmost floor. 2 Take the elevator out of use.

Illustration/Note Put "Under maintenance" notes at all landings. Check that the elevator car and car roof are empty. Disable landing calls and door operation.


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Step Action 3 Prevent the unauthorized access to the working area. 4 Move the elevator car to a suitable working level.

5 6

4.1.2

Illustration/Note Use safety fences where needed.

You must be able to move safety between the landing and car roof, and have access to the hoisting machine NOTE! If the elevator does not move, try from the car roof. For safe methods moving it without the encoder, if the drive when working in the shaft and moving module is equipped with that feature. between landing and shaft, refer to Refer to the drive specific instructions. AS-01.03.101 On-site Maintenance Safety Manual. Switch off the main switch. (220) Wait five minutes and check Refer to the drive specific that the drive module is deinstructions. energized.

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Performing the safety measures in elevator with machine room The following safety measures must be carried out before the actual work: Step Action 1 Drive the elevator car to the topmost floor. 2 Take the elevator out of use.

3 4 5

Prevent the unauthorized access to the working area. Switch off the main switch. (220) Wait five minutes and check that the drive module is deenergized.

Illustration/Note Put "Under maintenance" notes at all landings. Check that the elevator car and car roof are empty. Disable landing calls and door operation. Use safety fences where needed.

Refer to the drive specific instructions.


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4.2

Removing the magnetic reader

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CAUTION! Do not put magnetized screw driver or other magnetized tools or objects into the hole where the magnetic reader was. It may damage the magnets inside the machine.


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4.3

Installing the magnetic reader

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Finalize the replacement according to section 6 Finalizing the replacement. (Page 18)


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5

REPLACING THE OPTICAL ENCODER

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NMX07

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The following list describes the main work phases of the optical encoder replacement: – – – –

5.1

Performing the safety measures. Removing the encoder. Installing the encoder. Finalizing the replacement.

Performing the safety measures Select one of the following according to the elevator type: – Performing the safety measures in machine-room-less elevator. – Performing the safety measures in elevator with machine room.

5.1.1

Performing the safety measures in machine-room-less elevator The elevator car roof is used as working platform. The following safety measures must be carried out before the actual work: Step Action 1 Drive the elevator car to the topmost floor.

Illustration/Note Put "Under maintenance" notes at all landings.


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Step Action 2 Take the elevator out of use.

3 4

5 6

5.1.2

Prevent the unauthorized access to the working area. Move the elevator car to a suitable working level.

Illustration/Note Check that the elevator car and car roof are empty. Disable landing calls and door operation. Use safety fences where needed.

You must be able to move safety between the landing and car roof, and have access to the hoisting machine NOTE! If the elevator does not move, try from the car roof. For safe methods moving it without the encoder, if the drive when working in the shaft and moving module is equipped with that feature. between landing and shaft, refer to Refer to the drive specific instructions. AS-01.03.101 On-site Maintenance Safety Manual. Switch off the main switch. (220) Wait five minutes and check Refer to the drive specific that the drive module is deinstructions. energized.

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Performing the safety measures in elevator with machine room The following safety measures must be carried out before the actual work: Step Action 1 Drive the elevator car to the topmost floor. 2 Take the elevator out of use.

3 4 5

Prevent the unauthorized access to the working area. Switch off the main switch. (220) Wait five minutes and check that the drive module is deenergized.

Illustration/Note Put "Under maintenance" notes at all landings. Check that the elevator car and car roof are empty. Disable landing calls and door operation. Use safety fences where needed.

Refer to the drive specific instructions.


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5.2

Removing the encoder

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NOTE! Refer to the drive specific instructions for information about encoder cable connector.

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NOTE! Do not remove the encoder cable. New encoder cable will be routed together with it.

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5.3

Installing the encoder

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NOTE! Fix the cable to the old cable with cable ties. Refer to the drive specific instructions for information about encoder cable connector. Finalize the replacement according to section 6 Finalizing the replacement. (Page 18)


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6

6.1

FINALIZING THE REPLACEMENT

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Step 1

Action Record the motor setup type from the machine data plate.

2

Go to the topmost landing.

3

Perform the drive commissioning according to the drive specific instructions.

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Note Changing from one encoder type to another implies a change in the Motor setup type parameter: Attach the parameter sticker to the plate, if needed. If the hoisting machine is located in the elevator shaft. Refer to the correct elevator level and drive specific instructions. Setting the load weighing device and performing the shaft setup is usually not necessary.

Finalizing the maintenance Step Action 1 Remove all the tools and waste material from the work site. Clean the site. 2 Turn the elevator to normal. 3 Make a test run for the elevator.

Illustration/Note

Drive up and down with car calls and also with landing buttons for few runs.


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Step Action 4 Return the elevator to service.

7

Illustration/Note Remove the "Under maintenance" notes from landings. Remove the safety fences. Enable landing calls and door operation.

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APPROVALS AND VERSION HISTORY Compiled by:

Information Product Author / Janne Kaskimies

Checked by:

KTO Maintenance Specialist / Jukka Lindberg KTO Component Manager / Pasi Lehtimäki

Approved by:

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SEB Maintenance Method Director / Werner Ettrich

Translation approved by: / Issue A

Date

Description of Change

2012-05-31 First issue. 2013-02-13 Updated related documents. Updated Maintenance method safety with AM-01.03.001. Updated multimeter type. Added warning signs. Added caution against putting magnetized screw driver or similar objects into the place reserved for magnetic reader.

Ref CR

Approved by S. Valliovuo


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KONE Corporation KONE Technical Documentation P.O. Box 679 FI-05801 Hyvinkää, Finland

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As-03.12.036 AMD Maintenance Draft

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