ABB ACS280, Firmware Manual, Page: 40 / 430

40 Program features
torque (
99 Motor data
). The calculated maximum speed during the routine is
the initial speed (that is, speed when the routine is activated) + 25.39 , unless
limited by parameter
30.12
or
99.09
.
The diagram below shows the behavior of speed and torque during the
autotune routine. In this example,
25.40
is set to 2.
Notes:
• If the drive cannot produce the requested braking power during the routine,
the results will be based on the acceleration stages only, and not as accurate
as with full braking power.
• The motor will exceed the calculated maximum speed slightly at the end of
each acceleration stage.
Before activating the autotune routine
The prerequisites for performing the autotune routine are:
• The motor identification run (ID run) has been successfully completed
• Speed and torque limits (parameter group
30 Limits
) have been set
• The drive has been started and is running in speed control mode.
After these conditions have been fulfilled, autotuning can be activated by
parameter
25.33
(or the signal source selected by it).
Initial [
25.38
]
t
Initial torque
Initial speed + [
25.39
]
Initial speed