Program features 39
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 ACS860
Page 1: ... ABB INDUSTRIAL DRIVES ACS860 primary control program Firmware manual ...
Page 4: ......
Page 10: ...10 Table of contents ...
Page 18: ...18 Using the control panel ...
Page 24: ...24 Control locations and operating modes ...
Page 54: ...54 Program features ...
Page 78: ...78 Program features ...
Page 90: ...90 Application macros ...
Page 342: ...342 Additional parameter data ...
Page 380: ...380 Fault tracing ...
Page 381: ...Fault tracing 381 ...
Page 382: ...382 Fault tracing ...
Page 436: ...436 Control chain diagrams ...