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Code
Code
Code
Fault
Fault
Fault
Problem
Problem
Problem
Solution
Solution
Solution
F38
Phase U to Ground
Short
F39
Phase V to Ground
Short
F40
Phase W to Ground
Short
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 the motor for a grounded
phase. Replace the drive if the fault
cannot be cleared.
F41
Phase UV Short
F42
Phase UW Short
F43
Phase VW Short
Excessive current has been
detected between these two
output terminals.
• Check the motor and drive output
terminal wiring for a shorted condition.
• Replace the drive if the fault cannot be
cleared.
F48
Parameters
Defaulted
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
Software
Overcurrent
The programmed SW Current Trip
(A448) has been exceeded.
Check the load requirements and the
SW Current Trip setting (A448).
F64
Drive Overload
A drive rating of 150% for one
minute or 200% for three seconds
has been exceeded.
Reduce the load or extend accel time.
F70
Power Unit
Failure has been detected in the
drive power section.
• Cycle power.
• Replace the drive if the fault cannot be
cleared.
F71
Net Loss
The communication network has
faulted.
• Cycle power.
• Check the communications cabling.
• Check the network adapter setting.
• Check the external network status.
F81
Communication
Loss
The RS-485 (DSI) port stopped
communicating.
• If the adapter was not intentionally
disconnected, check the wiring to
the port. Replace the wiring, port
expander, adapters, or the complete
drive as required.
• Check the connection.
• Determine if an adapter was
intentionally disconnected.
• Turn off using Comm Loss Action
(C304).
F100
Parameter
Checksum Error
The checksum read from the board
does not match the checksum
calculated.
Set the Reset To Defaults parameter
(P112) to option 1 (reset defaults).
F122
I/O Board Fail
Failure has been detected in the
drive control and I/O section.
• Cycle power.
• Replace the drive if the fault cannot be
cleared.
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3A4030C