J. T. Eaton LCX9000 User Manual download pdf (Page 113)

LCX9000 Liquid-Cooled Drives User Manual

MN04005001E

For more information visit: www.EatonElectrical.com A-3

January 2007

Table A-1: Fault Codes (Continued)



Programmable.



“A” faults only.

Fault

Code Fault Possible Cause Solution

29 Thermistor fault



The thermistor input of option board

has detected increase of the motor

temperature.

Check motor cooling and loading

Check thermistor connection

(If thermistor input of the option

board is not in use, it has to be short

circuited)

31 IGBT temperature

(hardware)

IGBT Inverter Bridge

overtemperature protection has

detected too high a short term

overload current.

Check loading.

Check motor size.

34 CAN bus

communication

Sent message not acknowledged. Ensure that there is another device

on the bus with the same

conﬁguration.

36 Control unit Control Unit can not control Power

Unit and vice versa.

Change control unit.

37 Device change

(same type)



• option board or control unit

changed.

• same type of board or same

power rating of drive

Reset

Note: No fault time data record!

38 Device added

(same type)



• option board or drive added.

• drive of same power rating or

same type of board added

Reset

Note: No fault time data record!

39 Device removed



• option board removed

• drive removed

Reset

Note: No fault time data record!

40 Device unknown Unknown option board or drive. Contact your Cutler-Hammer

distributor.

41 IGBT temperature IGBT Inverter Bridge

overtemperature protection has

detected too high a short term

overload current.

Check loading.

Check motor size.

42 Brake resistor

overtemperature



Brake resistor overtemperature

protection has detected too heavy

braking.

Set the deceleration time longer.

Use external brake resistor.

43 Encoder fault Note: the exceptional fault data

record, see Page 5-12. Additional

codes:

1 = Encoder 1 channel A is missing

2 = Encoder 1 channel B is missing

3 = Both encoder 1 channels are

missing

4 = Encoder reversed

Check encoder channel connections.

Check the encoder board.

44 Device changed

(different type)



• option board or control unit

changed

• option board of different type or

different power rating of drive

Reset.

Note: No Fault Time Data Record is

made.

Note: Application parameter values

restored to default.

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 127 128

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J. T. Eaton LCX9000 User Manual Page 113

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