ABB ACS880 Firmware Manual page 501

No. Name/Value
Normal
Reduced
Standstill
Description
Normal ID run. Guarantees good control accuracy for all
cases. The ID run takes about 90 seconds. This mode
should be selected whenever it is possible.
Notes:
• If the load torque will be higher than 20% of motor
nominal torque, or if the machinery is not able to
withstand the nominal torque transient during the ID run,
then the driven machinery must be de-coupled from the
motor during a Normal ID run.
• Check the direction of rotation of the motor before starting
the ID run. During the run, the motor will rotate in the
forward direction.
WARNING! The motor will run at up to approximately
50...100% of the nominal speed during the ID run.
ENSURE THAT IT IS SAFE TO RUN THE MOTOR
BEFORE PERFORMING THE ID RUN!
Reduced ID run. This mode should be selected instead of
the Normal or Advanced
• mechanical losses are higher than 20% (i.e. the motor
cannot be de-coupled from the driven equipment), or if
• flux reduction is not allowed while the motor is running
(i.e. in case of a motor with an integrated brake supplied
from the motor terminals).
With Reduced ID run, the control in the field weakening area
or at high torques is not necessarily as accurate as with the
Normal ID run. Reduced ID run is completed faster than the
Normal ID Run (< 90 seconds).
Note: Check the direction of rotation of the motor before
starting the ID run. During the run, the motor will rotate in the
forward direction.
WARNING! The motor will run at up to approximately
50...100% of the nominal speed during the ID run.
ENSURE THAT IT IS SAFE TO RUN THE MOTOR
BEFORE PERFORMING THE ID RUN!
Standstill ID run. The motor is injected with DC current. With
an AC induction (asynchronous) motor, the motor shaft is
not rotated. With a permanent magnet motor or synchronous
reluctance motor, the shaft can rotate up to half a revolution.
Note: A standstill ID run should be selected only if the
Normal, Reduced or Advanced
the restrictions caused by the connected mechanics
(e.g. with lift or crane applications).
See also selection Advanced
ID Run if
ID run is not possible due to
Standstill.
Parameters 501
Def/FbEq16
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