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440 Parameters
Autophasing
The autophasing routine determines the start angle of a
permanent magnet or synchronous reluctance motor (see
page
). Autophasing does not update the other motor model
values.
Autophasing is automatically performed as part of the
,
runs. Using this setting, it is possible to perform autophasing
alone. This is useful after changes in the feedback
configuration, such as the replacement or addition of an
absolute encoder, resolver, or pulse encoder with
commutation signals.
Notes:
• This setting can only be used after a
,
,
,
ID run has
already been performed.
• Depending on the selected autophasing mode, the shaft
can rotate during autophasing. See parameter
.
4
Current
measurement
calibration
Requests current measurement calibration, ie. identification of
current measurement offset and gain errors.
The calibration will be performed at next start.
5
Advanced
Advanced ID run. Guarantees the best possible control
accuracy. The ID run can take a couple of minutes. This mode
should be selected when top performance is needed across
the whole operating area.
Note:
The driven machinery must be de-coupled from the
motor because of high torque and speed transients that are
applied.
WARNING!
The motor will run at up to approximately
50…100% of the nominal speed during the ID run.
Several accelerations and decelerations are done.
ENSURE THAT IT IS SAFE TO RUN THE MOTOR BEFORE
PERFORMING THE ID RUN!
6
Advanced Standstill Advanced Standstill ID run.
This selection is recommended with AC induction motors up
to 75 kW instead of the
• the exact nominal ratings of the motor are not known, or
• the control performance of the motor is not satisfactory
after a
ID run.
Note:
ID run to
complete varies according to motor size. With a small motor,
the ID run typically completes within 5 minutes; with a large
motor, the ID run may take up to an hour.
7
Shows the type of ID run that was performed last. For more
information about the different modes, see the selections of
parameter
.
None
No ID run has been performed.
0
Normal
ID run.
1
Reduced
ID run.
2
Standstill
ID run.
3
Autophasing
.
4
Current
measurement
calibration
Current measurement calibration
5
No.
Name/Value
Description
Def
/
FbEq16
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 ...