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Maintenance Operations
The motor rotates even after Inverter output is stopped.
Problem
The motor rotates even
after Inverter output is
stopped.
When the motor starts, an overcurrent fault (E02) is detected and the motor stalls.
Problem
When the motor starts,
an overcurrent fault
(E02) is detected and
the motor stalls.
Probable cause
If the motor continues operating at
low speed, without completely
stopping, even after a decelera-
tion stop has been executed, it
means that the DC injection brak-
ing is not decelerating enough.
Probable cause
DC injection braking is insufficient
at startup. This can also occur if
the motor is already turning when
the motor is started.
Correction
Increase the parameter in P05 for DC injection
braking-to-stop time or increase the decelera-
tion time.
Correction
This can be prevented by slowing the rotation
of the motor by DC injection braking before
starting the motor. Increase the parameter in
P04 for startup DC injection braking time.
Chapter 4
4-11
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