Code Fault Possible cause Suggested solution Resetting
62 Speed difference • Speed difference situation
detected
• Load measured too low in
ESR use
• Mechanical failure e.g. in
gear
• Interference or missing
signal in ENC1A
• Sensor channels ENC2A-B
connected wrong way
• Interference or missing
signal in ENC2A-B
• Check supply voltage
• Check load measurement
operation and calibration
• Check hoist operation
without load
• Check sensor cable
grounding and inverter PE-
connections
• Check/replace speed sensor
connected to ENC1A
• Swap connections between
ENC2A and ENC2B
• Check/replace speed sensor
connected to ENC2A-B
A
63 Stall • Motor does not run.
Mechanical failure e.g. in
gear
• Missing signal in ENC1A
• Check/replace motor
• Check/repair motor wiring
• Check hoist operation
without load
• Check/replace speed sensor
connected to ENC1A
A
64 Relay • Error detected in ROB1
relay, test circuit or the main
contactor
• Check main contactor circuit
wiring
• If problem recurs replace
inverter
A
71 Brake control • Error detected in brake
control circuit
• Check/repair brake control
circuit wiring
• Check brake coil resistance
• Replace brake if not ok
• If problem recurs replace
inverter
A
73 Both Direction
Commands Active
• S1 and S2 controls active at
the same time
• Fault in control circuit/
controller
• Check/repair control circuit
wiring
• Check/replace pendant
controller
C
77 CRC • Internal safety parameter
fault
• Switch off supply voltage
• If problem recurs, replace
inverter
B
020145en / Revision D / 2015-04-29
29/31
This document and the information contained herein, is the exclusive property of Konecranes Plc. and represents a non-public, confidential and proprietary trade secret that may not be
reproduced, disclosed to other parties, altered or otherwise employed in any manner whatsoever without the express written consent of Konecranes Plc.
Copyright
©
(2014) Konecranes Plc. All rights reserved.
To Next Page
Loading...