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Parameters 345
97.94
IR comp max
frequency
Sets the frequency at which IR compensation (set by
parameter
97.13
IR compensation
) reaches 0 V. The unit
is % of motor nominal frequency.
IR compensation
When enabled, IR compensation provides an extra
voltage boost to the motor at low speeds. Use IR
compensation, for example, in applications that require a
high breakaway torque.
80.0
1.0...200.0 %
IR compensation maximum frequency in %.
1 = 1%
98
98 User motor parameters
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.
98.01
User motor model
mode
Activates the motor model parameters
98.02
…
98.12
and
98.14
.
Notes
:
• Parameter value is automatically set to zero when ID
run is selected by parameter
99.13
ID run requested
.
The values of parameters
98.02
…
98.12
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 data sheet from a motor
manufacturer.
• This parameter cannot be changed while the drive is
running.
Not selected
Not selected
Parameters
98.02
…
98.12
inactive.
0
Motor parameters
The values of parameters
98.02
…
98.12
are used as the
motor model.
1
98.02
Rs user
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.
0.00000 p.u.
0.00000…0.50000
p.u.
Stator resistance in per unit.
-
No.
Name/Value
Description
Default
FbEq 16
A
B
A = IR compensated
B = No compensation
f (Hz)
Motor voltage
97.13
97.94
ACS380 FW.book Page 345 Friday, May 4, 2018 4:18 PM
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