Rm-materials-handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist LM 10 S Bedienungsanleitung Seite 74
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This document and the information contained herein, is the exclusive property of R&M Materials Handling, Inc., and represents a non-public, confidential and proprietary trade secret that
may not be reproduced, disclosed to third parties, altered or otherwise employed in any manner whatsoever without the express written consent of R&M Materials Handling, Inc.
Copyright © (2010) R&M Materials Handling, Inc. All rights reserved.
8.5 Troubleshooting
Table 22. Troubleshooting
PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION
Hoist does not lift or lower load
Inverter problem See technical documentation
Emergency stop button is
activated
Deactivate button
Blown fuse Replace the fuse
Motor thermal protection
activated
Allow motor to cool down
Pendant plug pin pushed out Reinstall plug pin
Contactor terminal screws loose Tighten screws
Mainline switch shut off Turn switch on
Hoist does not lift load Overload condition Reduce load
Slip clutch worn or incorrectly
adjusted
Replace wear items or readjust
slip clutch torque
Brake not releasing
Check brake coil resistance.
Check air gap setting. Adjust if
necessary.
Check rectifier output voltage.
Load drifts more than 4 inches
[100mm]
Brake lining worn
Air gap on brake is too wide
Replace wear items as
necessary
Adjust air gap setting
Travel direction does not
correspond to that indicated on
push button
Power supply incorrectly
connected
See SECTION 2
Abnormal noises while lifting or
lowering
Load chain and its components
are not lubricated
Clean and lubricate load chain.
Load chain is worn Replace chain
Chain wheel or chain guide is
worn
Replace chain wheel or chain
guide
Idler sprocket is worn Replace idler sprocket
A supply phase is missing Connect the three phases
Twist or kink in load chain Remove twist or kink
m
WARNING: High voltages inside the frequency converter. Wait for at least five minutes after
the supply voltage has been switched off before service actions. The display in the operating
condition (lights on) indicates a dangerous voltage on the DC-bus. When display turns off, the
DC-bus voltage is approximately 100V. Note also that there is always a dangerous voltage in
the braking resistor when the DC-bus is charged.
- INSTALLATION AND 1
- MAINTENANCE MANUAL 1
- LM CHAIN HOIST 1
- 1 INTRODUCTION 6
- 1.1 Contact Information 6
- 1.2 Warranty 6
- 1.3 Disclaimer 6
- 1.4 Safety 7
- 2 INSTALLATION 10
- 2.1 General 10
- 2.2 Lubrication 10
- 2.3 Mounting 11
- 2.5 Electrical Connection 12
- 2.7 Electricity 14
- 3 INITIAL START-UP 15
- 3.1 Start-Up Procedure 15
- 3.2 General 15
- 3.6 Test run without load 17
- 3.8 Test run with load 17
- 3.9 Test run with overload 17
- 3.10 After the test run 17
- 4 HOIST OPERATION 18
- 5 LOW HEADROOM TROLLEY 19
- 5.1.2 Environmental Data 20
- 5.1.3 Optional equipment 20
- 6 SWIVEL TROLLEY 21
- 6.3 Electric Swivel Trolley 23
- 7 MAINTENANCE 26
- 7.2 Motor / Body 26
- 7.4 Slip Clutch Adjustment 27
- 7.5.2 Basic description 32
- 7.5.3 Main components 32
- 7.5.4 Control methods 33
- 7.5.5.1 MS2-control 34
- 7.5.5.2 EP2-control 34
- 7.5.5.3 AU/PO-control 35
- 7.5.6 EMC 35
- 7.5.6.1 EMC levels 36
- 7.5.7 Parameter adjustments 37
- 7.5.7.1 The display panel 37
- 7.5.8.1 User parameters 38
- 7.5.8.2 Factory parameters 38
- 7.5.9.1 General Description 39
- G1.2 Motor Parameters 40
- G1.3 I/O Parameters 42
- G1.4 Not used 42
- G1.5 Expert 42
- M2 Monitoring 43
- M3 System Menu 43
- S3.8 System info 43
- M4 Active faults 44
- M5 Fault history 44
- 7.5.9.3 Reverse Plugging 45
- 7.5.9.4 Relay output 45
- 7.5.11 Speed supervision 47
- 7.5.12 Drawings 49
- 7.6 Load Chain 50
- 6'' 56
- 7.8 Chain Container 57
- 7.10 Limit Switches 59
- 7.11 Hooks 61
- 7.11.2 Hook Inspection 62
- 7.11.3 Top Hook 63
- 8 PREVENTATIVE MAINTENANCE 71
- 8.2 Lubrication 72
- 3.5 and 3.7 73
- 8.5 Troubleshooting 74
- 8.6 Field repair actions 75
- 8.8 Inverter fault codes 75
- A = Can be done by the user 77
- 9 PARTS ILLUSTRATION 78
- 9.1 Hoist Body 78
- 9.3 Lifting Assembly 82
- 9.4 Controls 84
- 9.6 Low Headroom Trolley 88
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