Huvema HU 45 DM, Operation Manual

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16
8.2.
Table of Error Codes for the inverter
Code Error description Solution
O.C
* The voltage inverter detects the
output current exceeds the normal
value. * Check if voltage of the motor matches with
that of the voltage inverter.
* Check connection between the voltage
inverter & the motor.
* Check if the motor is overloaded.
O.U * The voltage inverter of the motor is
detected with a D.C. high voltage
lateral pressure value that
exceeds the acceptable range.
* Check if the circuit input voltage matches
with that of the voltage inverter.
* Frequent on/off and switches between
clockwise and reverse directions result in
self-protection from high D.C. high voltage
lateral pressures.
O.H * The touch pole of the voltage
inverter of the motor indicates
overheat.
* Check if the circuit input voltage matches
with that of the voltage inverter.
* Ensure the cooling device be free of any
foreign objects or dirt.
L.U * The voltage inverter of the motor
indicates the voltage of the D.C.
high voltage lateral pressure is
lower than the allowable minimum
value.
* Check if the power input voltage matches
with that of the voltage inverter.
O.L * The frequency converter detects
the output exceeds 150% of
normal standards for 1 minute.
* Check if the motor is overloaded.
Ex: 1. Cutters/quills are blunt?
2. Quill diameter, gear, speed and volume
of feeds proper?
o.c.A
o.c.d
d.c.n * Electric current is too large during
acceleration.
* Electric current is too large during
deceleration.
* Electric current is too large during
operation.
* Check if the output connection of the motor
adjuster is insulated improperly.
C.F.F * Grounding or safety wire mistakes * Check if grounding is proper.
* Replace safety fuses.
* When the diode shows the same mistake
numbers continuously on the monitor, ask
for more information from the after-sales
service center.
C.F 1~3 or
others Abnormal detection inside the
frequency converter * Place the machine outside the circuit.
* Restart the machine.
* When the diode shows the same mistake
numbers continuously on the monitor, ask
for more information from the after-sales
service center.