Rockwell Automation MD65 User Manual Version 2.0 - Manual (Page 111)

Troubleshooting the Drive 10-5
F41 Phase UV
Short N 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.
F42 Phase UW
Short
F43 Phase VW
Short
F48 Params
Defaulted N 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.
F63 SW
OverCurrent Y Programmed SW
Current Trip (A098)
has been exceeded.
Check load requirements
and SW Current Trip
(A098) setting.
F64 Drive
Overload N Drive rating of 150%
for 1 minute or 200%
for 3 seconds has been
exceeded.
Reduce load or extend
Accel Time.
F70 Power Unit N Failure has been
detected in the drive
power section.
• Cycle power.
• Replace drive if fault
cannot be cleared.
F80 SVC
Autotune N The Autotune function
was either cancelled
by the user or failed.
Restart procedure.
F81 Comm Loss N RS485 port stopped
communicating.
• If module was not
intentionally
disconnected, check
wiring to the port.
Replace wiring, port
expander, module, or
complete drive as
required.
• Check connection.
• A module was
intentionally
disconnected.
• Turn off using Comm
Loss Action (A105).
Table 10.1 – Fault Descriptions and Corrective Actions (Continued)
No. Fault A
uto-Re
set
1
?
Description Action