Rockwell Automation Allen-Bradley PowerFlex 520 Series, User Manual, Page: 160 / 272

160 Rockwell Automation Publication 520-UM001K-EN-E - August 2021
Chapter 4 Troubleshooting
F029 Analog In Loss 1
An analog input is configured to fault
on signal loss. A signal loss has
occurred.
Configure with t094 [Anlg In V Loss]
or t097 [Anlg In mA Loss].
• Check for broken/loose
connections at inputs.
• Check parameters.
F033 Auto Rstrt Tries 2
Drive unsuccessfully attempted to
reset a fault and resume running for
the programmed number of A541
[Auto Rstrt Tries].
Correct the cause of the fault and
manually clear.
F038 Phase U to Gnd
2
A phase to ground fault has been
detected between the drive and motor
in this phase.
• Check the wiring between the
drive and motor.
• Check motor for grounded phase.
• Replace drive if fault cannot be
cleared.
F039 Phase V to Gnd
F040 Phase W to Gnd
F041 Phase UV Short
2
Excessive current has been detected
between these two output terminals.
• Check the motor and drive output
terminal wiring for a shorted
condition.
• Replace drive if fault cannot be
cleared.
F042 Phase UW Short
F043 Phase VW Short
F048 Params Defaulted 1
The drive was commanded to write
default values to EEPROM.
• Clear the fault or cycle power to
the drive.
• Program the drive parameters as
needed.
F059
(3)
Safety Open 1
Both of the safety inputs (Safety 1,
Safety 2) are not enabled.
Configure with t105 [Safety Open En].
• Check safety input signals. If not
using safety, verify and tighten
jumper for I/O terminals S1, S2, and
S+.
F063 SW OverCurrent 1
Programmed A486 , A488 [Shear Pinx
Level] has been exceeded for a time
period greater than the time
programmed in A487 , A489 [Shear Pin
x Time].
• Verify connections between motor
and load.
• Verify level and time requirements.
F064 Drive Overload 2
Drive overload rating has been
exceeded.
Reduce load or extend Accel Time.
F070 Power Unit 2
Failure has been detected in the drive
power section.
• Check max ambient temperature
has not been exceeded.
• Cycle power.
• Replace drive if fault cannot be
cleared.
F071 DSI Net Loss 2
Control over the Modbus or DSI
communication link has been
interrupted.
• Cycle power.
• Check communications cabling.
• Check Modbus or DSI setting.
• Check Modbus or DSI status.
F072 Opt Net Loss 2
Control over the network option card’s
remote network has been interrupted.
• Cycle power.
• Check communications cabling.
• Check network adapter setting.
• Check external network status.
F073
(3)
EN Net Loss 2
Control through the embedded
EtherNet/IP adapter has been
interrupted.
• Cycle power.
• Check communications cabling.
• Check EtherNet/IP setting.
• Check external network status.
F080 Autotune Failure 2
The autotune function was either
cancelled by the user or failed.
Restart procedure.
F081 DSI Comm Loss 2
Communications between the drive
and the Modbus or DSI master device
have been interrupted.
• Cycle power.
• Check communications cabling.
• Check Modbus or DSI setting.
• Check Modbus or DSI status.
• Modify using C125 [Comm Loss
Action].
• Connecting I/O terminals C1 and C2
to ground may improve noise
immunity.
• Replace wiring, Modbus master
device, or control module.
Fault Types, Descriptions, and Actions (Continued)
No. Fault
Type
(1)
Description Action