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September 2006
Appendix A — Fault Codes
When a fault is detected by the inverter 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
Fault
Code Fault
1
Overcurrent
2
Overvoltage
3
Ground Fault
5
Charging Switch
6
Emergency Stop
7
Saturation Trip
8
System Fault
Programmable.
MN04004002E
Possible Cause
Inverter detected too high a current
(>4 x I
) in the motor cable:
n
• Sudden heavy load increase
• Short circuit in the motor
• Unsuitable motor
The DC link voltage exceeded the
defined limits:
• Deceleration time too short
• High overvoltage spikes in supply
Current measurement has detected
that the sum of motor phase currents
is not zero.
• Insulation failure in cables or
motor
Charging switch is open, when the
START command is given:
• Faulty operation
• Component failure
Stop signal was given from the
option board.
Various causes:
• Component failure
• Brake resistor is short circuited or
overloaded
• Component failure
• Faulty operation
Note: See exceptional fault data
record on Page 5-12.
For more information visit: www.EatonElectrical.com
SPI9000 Inverter Unit FI9 – FI14 User Manual
Solution
Check loading.
Check motor.
Check cables.
Set the deceleration time longer.
Add a brake chopper or brake
resistor.
Check motor cable and motor.
Reset the fault and restart.
Should the fault re-occur, contact
your Cutler-Hammer distributor.
Cannot be reset from the keypad.
Switch off the power.
DO NOT RE-CONNECT POWER.
Contact Eaton.
If this fault appears simultaneously
with Fault 1, check motor cables and
motor.
Reset the fault and restart.
Should the fault re-occur, contact
your Cutler-Hammer distributor.
A-1
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