gefran BDI50 Series User Manual

5-2
Faults which can be recovered manually and automatically
Display
content
Cause
Corrective action
OC-A
Over-current at
acceleration
1.Acceleration time too short
2.The capacity of the motor
exceeds the capacity of
the inverter
3.Short circuit between the
motor coil and the case
4.Short circuit between
motor wiring and ground
5.IGBT module damaged
1.Set a longer acceleration
time
2.Replace inverter with one
that has the same rating as
that of the motor
3.Check the motor
4.Check the wiring
5.Consult with the supplier
OC-C
Over-current at
fixed speed
1. Transient load change
2. Transient power change
1.Increase the capacity of
the inverter
2.Install inductor on the
power supply input side
OC-d
Over-current at
deceleration
The preset deceleration time is
too short.
Set a longer deceleration time
OC-S
Over current at
start
1.Short circuit between the
motor coil and the case
2.Short circuit between motor
coil and ground
3.IGBT module damaged
1.Inspect the motor
2.Inspect the wiring
3.Consult with the supplier
OV-C
Excessive
Voltage during
operation/
deceleration
1.Deceleration time setting
too short or excessive load
inertia
2.Power voltage varies widely
(fluctuates)
1.Set a longer deceleration
time
2.Consider use of a brake
resistor and/or brake module
(For 400V models or 200V
5hp~15hp models)
3.Consider use of a reactor at
the power input side
PF
Input phase Loss
Abnormal fluctuations in the
main circuit voltage
1.Check the main circuit
power supply wiring.
2.Check the power supply
voltage
Faults which can be recovered manually but not automatically
Display
content
Cause
Corrective action
OC
Over-current
during stop
Detection circuit malfunction Consult with the supplier
OL1
Motor overload loading too large
Consider increasing the
Motor capacity
OL2
Inverter overload Excessive Load
Consider increasing the
inverter capacity

gefran BDI50 Series Specifications

General

Brand	gefran
Model	BDI50 Series
Category	Inverter
Language	English