YASKAWA FSDrive-MV1S - Page 81

5-16
Torque Compensation: C4
User constants for torque compensation are shown in the following table.
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display
C4-01
Torque compensation
gain
Sets torque compensation gain
as a ratio.
Usually setting is not necessary.
Adjust in the following circum-
stances:
• When the cable is long;
increase the set value.
• When the motor capacity is
smaller than the Inverter
capacity (Max. applicable
motor capacity), increase the
set values.
• When the motor is oscillat-
ing, decrease the set values.
Adjust the output current range
at minimum speed rotation so
that it does not exceed the
Inverter rated output current.
0.00 to
2.50
1.00 Yes A No 270H
Torq Comp Gain
C4-02
Torque compensation
primary delay time
constant
The torque compensation delay
time is set in ms units.
Usually setting is not necessary.
Adjust in the following circum-
stances:
• When the motor is oscillat-
ing, increase the set values.
• When the responsiveness of
the motor is low, decrease
the set values.
0 to
10000
50 ms No A No 271H
Torq Comp Time