POWER ELECTRONICS
SD300
DESCRIPTION OF PROGRAMMING PARAMETERS
147
Cn.42
PM speed
estimator
integral gain
10
0
–
32000
Establishes the values of the gain of the
speed estimator during the operation of a
permanent magnet synchronous motor in
sensorless vector control mode. If
oscillations occur during normal motor
operation, increase this parameter.
Note:
Visible parameter if dr.9 = PM
Sensor-less
NO
Cn.43
PM speed
estimator
proportional
gain
300
0
–
32000
Establishes the values of the gain of the
speed estimator during the operation of a
permanent magnet synchronous motor in
sensorless vector control mode. They are
used for low speed operations for 200V
motors.
Note:
Visible parameter if dr.9 = PM
Sensor-less
NO
Cn.44
PM speed
estimator
integral gain 2
30
0
–
32000
Establishes the values of the gain of the
speed estimator during the operation of a
permanent magnet synchronous motor in
sensorless vector control mode. They are
used for low speed operations for 200V
motors.
Note: Visible parameter if dr.9 = PM Sensor-
less
NO
Cn.45
Speed
estimator
feedforward
high speed
range (%)
300%
0
–
1000%
Establishes the high speed portion of the
feedback speed with respect to the EMF
during the operation of a permanent magnet
synchronous motor in the sensorless vector
control mode. The forwarding of feeds
improves the operation of the speed
estimator. Increase the value of this
parameter in increments of 10% to eliminate
oscillations in the motor. If it is set too high
a fault can occur.
Note:
Visible parameter if dr.9 = PM
Sensor-less
NO
Содержание SD 300 Series
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