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If an Error Code Is Displayed on SmartStacker
Code
Inverter alarm
Overcurrent during constant speed
(Inverter display: E.OC2)
3111
During constant-speed operation, the output
current of the inverter became double the rated
current.
Inverter alarm
Overcurrent during acceleration
(Inverter display: E.OC1)
3112
During deceleration, the output current of the
inverter became double the rated current.
Inverter alarm
Overvoltage during acceleration
(Inverter display: E.OV1)
3120
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)
3121
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)
3122
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)
3130
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.
242
Description and Causes
Solutions
If this error occurs frequently, call your local
dealer.
SmartStacker User's Manual
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