Chapter 12 Troubleshoot and maintenance
12-5
Cx2000 AC Drive
Inverter
overload
The load of the inverter exceeds
its rated value.
Torque compensation is oversize.
Increase the capacity of motor and
inverter.
Decrease torque compensation.
Overload
protection
Fault remedy
Protective functions
Abnormal causes
Countermeasures
Inverter
Overheat
The cooling system is abnormal.
The service time of the inverter
exceeds the replacement period of the
cool fan.
The environmental temperature is
too high.
Check the air inlet and outlet and
so on, to see if there is any foreign
substance available.
Replace the cool fan of the
inverter.
The environmental temperature of
the inverter shall keep under 50 C.
Output phase loss
Output electromagnetic contactor has
a bad contact.
Bad output wiring
Check the output electromagnetic
contactor of the inverter.
Check the output wiring.
Cool fan
abnormity
There are some foreign substances i
nhaled into the inverter intake.
The service time of the inverter
exceeds the replacement period of the
inverter.
Check the air inlet and outlet.
Replace the cool fan of the
inverter.
Over voltage
Accel/Decel time is too short
compared to the load inertia GD2.
Regenerative load is available at
the output end of the inverter.
Supply voltage is too high.
Increase Decel time.
Use brake resistance.
Check if the supply voltage excee
ds the value specified.
Low voltage
The supply voltage is too low.
The low exceeds the power capacit
y.
The power electromagnetic contracto
r has a bad contract.
Check if the supply voltage is
lower than the value specified.
Increase the capacity of the
power supply.
Replace the electromagnetic
contractor.
Содержание C*2000 Series
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