Power Electronics SD 300 Series, Getting Started Manual

Page: 158 / 354

SD300 POWER ELECTRONICS
156
DESCRIPTION OF PROGRAMMING PARAMETERS
Screen Description
Default
value
Range Function
Set on
RUN
Cn.91
[23]
SL voltage
compensation
1
20 (*) 0 to 60
Adjust output voltage compensation values
for sensorless vector control.
•
If the output frequency is higher than
the base frequency during no-load
operation at low speed, decrease the
value of Cn.91 by decrements of 5
(10Hz or lower).
• If the torque is insufficient, increase
Cn.93 by increments of 5.
If the motor hunts or overcurrent trip occurs
in regenerative load at low speed (10 Hz or
lower), increase the value of Cn.92-93 by
increments of 5 at the same time.
YES
Cn.92
[23]
SL voltage
compensation
2
20 (*) 0 to 60 YES
Cn.93
[23]
SL voltage
compensation
3
20 (*) 0 to 60 YES
Cn.94
[23]
SL fluctuation
frequency 100.0%
[24]
80.0 to
110.0%
If an over current trip occurs due to sudden
load fluctuation at high speed (50 Hz or
higher), increase/decrease the value of
Cn.94 by increments/decrements of 5% (set
below 100%).
YES
Cn.95
[23]
SL switching
frequency 2.00Hz
[24]
0.00 to
8.00Hz
Set sensorless gain switching frequency. YES
Pre-excitation flux
(*) This value depends on the motor setting.