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Program features 45
The diagram below shows the behavior of speed and torque during the autotune
routine. In this example,
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
) have been set
• The speed feedback has been monitored for noise, vibrations and other
disturbances caused by the mechanics of the system, and
•
speed feedback filtering (parameter group
•
speed error filtering (
24 Speed reference conditioning
) and
•
zero speed (parameters
and
)
have been set to eliminate these disturbances.
• The drive has been started and is running in speed control mode.
After these conditions have been fulfilled, autotuning can be activated by parameter
(or the signal source selected by it).
Initial [
t
Initial torque
Initial speed + [
Initial speed
Summary of Contents for ACS880-x04
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Page 4: ......
Page 18: ...18 Using the control panel ...
Page 24: ...24 Control locations and operating modes ...
Page 112: ...112 Application macros ...
Page 496: ...496 Additional parameter data ...
Page 544: ...544 Fault tracing ...
Page 602: ...602 Control chain diagrams ...