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Torque Compensation: C4
User parameters for are torque compensation shown in the following table.
Name
Parameter
Number
Display
Torque
This parameter sets the gain
Compensation
for the Drive's automatic
Gain
torque boost function to
match the Drive's output
voltage to the motor load.
This parameter helps to
produce better starting torque.
C4-01
It determines the amount of
Torq Comp
torque or voltage boost based
Gain
upon motor current, motor
resistance, and output
frequency.
Note: Adjustment is not
normally required.
Torque
This parameter adjusts the
Compensation
filter on the output of the
Primary
torque compensation
Delay Time
function. Increase to add
C4-02
stability, decrease to improve
response.
Torq Comp
Note: Adjustment is not
Time
normally required.
Torque
Compensation
Sets torque compensation at
at Forward
C4-03
forward start as a percentage
Start
of motor torque.
F TorqCmp@
start
Torque
Compensation
Sets torque compensation at
at Reverse
C4-04
reverse start as a percentage
Start
of motor torque.
R TorqCmp@
start
Torque
Sets the time constant for
Compensation
torque compensation at
Time
forward start and reverse start
C4-05
Constant
(C4-03 and C4-04). The filter
is disabled if the time is set to
TorqCmp
4ms or less.
Delay T
* The display shows the factory settings for Open loop vector 1 (OLV1). Default settings will change in accordance with the control mode.
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Setting
Factory
Description
Range
Setting
0.00
to
1.00
2.50
0
to
20ms*
10000
0.0
to
0.0%
200.0
-200.0
to
0.0%
0.0
0
to
10ms
200
User Parameter Tables
Control Methods
Change
Open
V/f
during
Loop
Flux
V/f
with
Operation
Vector
Vector
PG
1
Yes
A
A
A
No
No
A
A
A
No
No
No
No
A
No
No
No
No
A
No
No
No
No
A
No
Open
MODBUS
Loop
Register
Vector
2
No
215H
No
216H
No
217H
No
218H
No
219H
25
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