Power Electronics SD300 Series - Page 148

SD300
POWER ELECTRONICS
146
DESCRIPTION OF PROGRAMMING PARAMETERS
Cn.36
Initial pole
position
estimation
interval
20ms
1–100ms
It allows adjusting the time interval between
retries to estimate the initial position of the
pole in a permanent magnet synchronous
motor (PM).
Note: Visible parameter if dr.9 = PM
Sensor-less
NO
Cn.37
Initial pole
position
estimation
pulse current
(%)
15%
10–
100%
It allows adjusting the value of the current
pulse in the estimation of the initial position
of the pole in a permanent magnet
synchronous motor (PM).
Note: Visible parameter if dr.9 = PM
Sensor-less
NO
Cn.38
Initial pole
position
estimation
pulse voltage
(%)
500%
100–
4000
It allows adjusting the value of the voltage
pulse in the estimation of the initial position
of the pole in a permanent magnet
synchronous motor (PM).
Note: Visible parameter if dr.9 = PM
Sensor-less
NO
Cn.39
PM dead-time
range (%)
100.0%
50.0–
200.0%
Sets the output compensation values during
the operation of a permanent magnet
synchronous motor in sensorless vector
control mode. If the motor does not run at
low speeds, at 5%, or less, of the rated
motor speed, increase the values in 10%
increments. Decrease the values by 10%
decrements if a clanking noise occurs at
motor startup and motor stop.
Note: Visible parameter if dr.9 = PM
Sensor-less
NO
Cn.40
PM dead-time
voltage (%)
100.0%
50.0–
200.0%
Cn.41
PM speed
estimator
proportional
gain
100
0–32000
Establish the values of the gain of the speed
estimator during the operation of a
permanent magnet synchronous motor in
sensorless vector control mode. If there is a
fault or the motor vibrates at low speed,
decrease this parameter by 10%
decrements until the motor runs correctly.
Note: Visible parameter if dr.9 = PM
Sensor-less
NO