Allen-Bradley PowerFlex400, User Manual

Page: 116 / 192

4-4 Troubleshooting
No. Fault
Ty
p
e
(1
)
Description Action
F33 Auto Rstrt Tries
➁
Drive unsuccessfully attempted
to reset a fault and resume
running for the programmed
number of
A163 [Auto Rstrt
Tries].
Correct the cause of the fault and
manually clear.
F38 Phase U to Gnd
➁
A phase to ground fault has been
detected between the drive and
motor in this phase. 1. Check the wiring between the
drive and motor.
2. Check motor for grounded
phase.
3. Replace drive if fault cannot be
cleared.
F39 Phase V to Gnd
F40 Phase W to Gnd
F41 Phase UV Short
➁
Excessive current has been
detected between these two
output terminals. 1. Check the motor and drive output
terminal wiring for a shorted
condition.
2. Replace drive if fault cannot be
cleared.
F42 Phase UW Short
F43 Phase VW Short
F48 Params
Defaulted The drive was commanded to
write default values to EEPROM. 1. Clear the fault or cycle power to
the drive.
2. Program the drive parameters as
needed.
F63 SW OverCurrent
➀
Programmed A183 [SW Current
Trip] has been exceeded.
Check load requirements and A183
[SW Current Trip] setting.
F64 Drive Overload
➁
Drive rating of 110% for 1 minute
or 150% for 3 seconds has been
exceeded. Reduce load or extend Accel Time.
F70 Power Unit
➁
Failure has been detected in the
drive power section. 1. Cycle power.
2. Replace drive if fault cannot be
cleared.
F71 Net Loss The communication network has
faulted. 1. Cycle power.
2. Check communications cabling.
3. Check network adapter setting.
4. Check external network status.
F81 Comm Loss
➁
RS485 (DSI) port stopped
communicating. 1. Check RS485 wiring connection.
2. Check if a communications
adapter or HIM was
disconnected.
3. Increase C106 [Comm Loss
Time] to an appropriate time for
application.
4. Change C105 [Comm Loss
Action] to a value other than “0”
(fault), if appropriate for the
application.
F94 Function Loss
➁
P036 [Start Source] is set to
setting 6. The input to terminal 01
has been opened.
Close input to terminal 01 and
re-start the drive.
F100 Parameter
Checksum
➁
The checksum read from the
board does not match the
checksum calculated. Set P041 [Reset To Defalts] to option
1 “Reset Defaults”.