Parameters 433
Hexagonal field
weakening point
Defines the activation limit for hexagonal field weakening (in
percent of the field weakening point, ie. the frequency at
which maximum output voltage is reached). See parameter
.
Note:
This parameter is only effective in scalar motor control
mode.
120.0%
0.0 … 500.0%
Activation limit for hexagonal field weakening.
1 = 1%
Unfiltered motor torque in percent of the nominal motor
torque.
This parameter is read-only.
-
-1600.0 … 1600.0% Unfiltered motor torque.
See par.
Defines a filtering time for estimated speed. See the diagram
on page
5.00 ms
0.00 … 100.00 ms
Filtering time for estimated speed.
1 = 1 ms
98
Motor values supplied by the user that are used in the motor
model.
These parameters are useful for non-standard motors, or to
just get more accurate motor control of the motor on site. A
better motor model always improves the shaft performance.
Activates the motor model parameters
and the
rotor angle offset parameter
Notes
:
• Parameter value is automatically set to zero when ID run is
selected by parameter
. The values
are then updated according to
the motor characteristics identified during the ID run.
• Measurements made directly from the motor terminals
during the ID run are likely to produce slightly different
values than those on a datasheet from a motor
manufacturer.
• This parameter cannot be changed while the drive is
running.
Not selected
The values detected during the ID run are being used.
0
Motor parameters
are used as the
motor model.
1
Position offset
The value of parameter
is used as the rotor angle offset.
Parameters
are inactive.
2
Motor parameters &
position offset
are used as the
motor model, and the value of parameter
is used as the
rotor angle offset.
3
Defines the stator resistance
R
S
of the motor model.
With a star-connected motor,
R
S
is the resistance of one
winding. With a delta-connected motor,
R
S
is one-third of the
resistance of one winding.
Resistance value is given at 20 °C (68 °F).
0.00000 p.u.
0.00000 … 0.50000
p.u.
Stator resistance in per unit.
-
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 ...