beautypg.com

Appendix a — fault codes – J. T. Eaton Liquid-Cooled Drives LCX9000 User Manual

Page 111

background image

LCX9000 Liquid-Cooled Drives User Manual

MN04005001E

For more information visit: www.EatonElectrical.com

A-1

January 2007

Appendix A — Fault Codes

When a fault is detected by the drive’s control electronics, the drive is stopped and the
symbol F together with the ordinal number of the fault, the fault code and a short fault
description appear on the display. The fault can be reset with the RESET button on the
control keypad or via the I/O terminal. The faults are stored in the Fault History Menu M5,
which can be browsed. Table A-1 contains all the fault codes.

Table A-1: Fault Codes

ᕃ

Programmable.

Fault
Code Fault

Possible Cause

Solution

1

Overcurrent

Drive has detected too high a current
in the motor cable:
• sudden heavy load increase
• short circuit in the motor cables
• unsuitable motor

Check loading.
Check motor.
Check cables.

2

Overvoltage

The DC-link voltage has exceeded
the limits defined in Table 1-4:
• too short a deceleration time
• high overvoltage spikes in supply

Set the deceleration time longer.
Add a brake chopper or brake
resistor.

3

Ground Fault

ᕃ

Current measurement has detected
that the sum of motor phase currents
is not zero.
• insulation failure in cables or

motor

Check motor cables and motor.

5

Charging Switch

The charging switch is open, when
the START command has been
given.
• faulty operation
• component failure

Reset the fault and restart.
Should the fault re-occur, contact
your Cutler-Hammer distributor.

6

Emergency stop

Stop signal has been given from the
option board.

7

Saturation trip

Various causes:
• component failure
• brake resistor short circuit or

overload

Cannot be reset from the keypad.
Switch off power.
DO NOT RE-CONNECT POWER!
Contact Eaton.
If this fault appears simultaneously
with Fault 1, check motor cables and
motor.

8

System fault

• component failure
• faulty operation
Note: exceptional fault data record,
see Page 5-12.

Reset the fault and restart.
Should the fault reoccur, contact
your Cutler-Hammer distributor.