Function Application
‑594‑
Param
eter
Name
Value Range Default
Description
F1‑24
Number of motor
pole pairs
0 to 65535 2
‑
F3‑01
Torque boost
0.0%: Automatic
torque boost
0.1% to 30.0%
Model
depend
ent
The torque boost function
is generally applicable to
the AC drive at low
frequency. The output
torque of the AC drive in V/f
control mode is
proportional to the
frequency. Under the
condition of low frequency,
the torque of the motor is
very low when the motor
runs at low speed. The
output voltage of the AC
drive can be increased
through this parameter,
thereby increasing the
current and output torque.
Set this parameter to a
moderate level to avoid
triggering the overload
protection.
A9‑40
Low‑speed closed‑
loop current
selection (for VVC)
0: Disabled
1: Enabled
0
‑
A9‑41
Low‑speed closed‑
loop current (for
VVC)
30% to 200%
(rated motor
current as the
base value)
50%
‑
A9‑42
Oscillation
suppression
damping
coefficient (for
VVC)
0 to 500 100%
‑
A9‑43
Initial position
compensation
angle (for VVC)
0 to 5 0
‑
3.4.15Synchronous Motor Electromagnetic Shorting
Electromagnetic Shorting at Start/Stop
The time sequence of start and stop signals for the "decelerate to stop" or "coast to
stop" mode is shown in the following figure.
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