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Code
Inverter alarm
Overcurrent during acceleration
(Inverter display: E.OC1)
4710
During acceleration, the output current of the
inverter became double the rated current.
Inverter alarm
Overcurrent during constant speed
(Inverter display: E.OC2)
4711
During constant-speed operation, the output
current of the inverter became double the rated
current.
Inverter alarm
Overcurrent during acceleration
(Inverter display: E.OC1)
4712
During deceleration, the output current of the
inverter became double the rated current.
Inverter alarm
Overvoltage during acceleration
(Inverter display: E.OV1)
4720
During acceleration, regenerative energy has
caused the main circuit DC voltage in the inverter
to exceed the specified value.
Inverter alarm
Overvoltage during constant speed
(Inverter display: E.OV2)
4721
During constant-speed operation, regenerative
energy has caused the main circuit DC voltage in
the inverter to exceed the specified value.
Inverter alarm
Overvoltage during deceleration
(Inverter display: E.OV3)
4722
During deceleration, regenerative energy has
caused the main circuit DC voltage in the inverter
to exceed the specified value.
Inverter alarm
Inverter overload shut-off
(Inverter display: E.THT)
4730
The output current of the inverter has been more
than 150% of the rated current. Because the
output current is less than 200%, overcurrent
cutoff has not occurred. Output has been stopped
to protect the output transistor.
SmartStacker User's Manual
Description and Causes
If an Error Code Is Displayed on SmartStacker
If this error occurs frequently, call your local
dealer.
Solutions
291
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