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FI002K0018v1100UK – THS/21 Instruction manual for installation, use and maintenance
MAINTENANCE
156 ORIGINAL INSTRUCTIONS
Fault Message Probable cause Action Type
MOTOR FAULT (X)
Inverter fault or programmed incorrectly. Motor fault.
X: Fault identification code.
-
F3 Power loss
Check that the AC power supply is constantly
within the nominal voltage range on the plate. If
the problem persists, contact Assistance Service.
F4 Undervoltage
F5 Overvoltage
Check that the AC power supply is constantly
within the nominal voltage range on the plate.
Sometimes, fast motor decelerations can cause
transitory overvoltage. In that case increase the
deceleration time (DCCT). If the problem persists,
contact Assistance Service.
F6 Motor stalled
Increase acceleration time (ACCT) or reduce load
so drive output does not exceed 1.5 NMC.
Check that NMC is set correctly for the installed
motor. If the problem persists, contact Assistance
Service.
F7 Motor overload
Reduce load so drive output does not exceed the
nominal motor current (NMC). Check that NMC is
set correctly for the installed motor. If the problem
persists, contact Assistance Service.
F8
Heat sink over
temperature
Check for blocked or dirty Inverter heat sink fins.
Check the fan.
F13 Earth fault
Check the motor and external wiring to the drive
output terminals for an earthing condition. If the
problem persists, contact Assistance Service.
F38 - F39
F40
Phase to GND
Check the wiring between inverter and motor.
Check motor for earthed phase.
F41 - F42
F43
Phase-phase short
circuit
Check the motor and drive output terminal wiring
for a short circuit. If the problem persists, contact
Assistance Service.
F64 Drive overload
Drive rating of 150% for 60 s or 200% for 3 s has
been exceeded. Reduce motor load or increase
ACCT.
F122 Inverter I/O board fault Contact Assistance Service
MOTOR FAULT(AUX)
Inverter connection problem
Check the connection of the inverter cable to the
ALM card. Check the jumper status on it.
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