Omron SYSDRIVE 3G3RV Series User Manual page 253

nRelated Parameters
Name
Param-
eter
Num-
LCD Display
ber
Torque compensation gain
C4-01
Torq Comp Gain
Torque compensation pri-
mary delay time constant
C4-02
Torq Comp Time
Starting torque value (for-
ward)
C4-03
F TorqCmp@start
Starting torque value
(reverse)
C4-04
R TorqCmp@start
Starting torque time con-
stant
C4-05
TorqCmp Delay T
* 1. The factory setting will change when the control method is changed. (V/f control factory settings are given.)
* 2. The starting torque value can be set only for (-E) models.
nAdjusting Torque Compensation Gain
Normally, there is no need to make this adjustment. Do not adjust the torque compensation gain when using
open loop vector control.
For V/f control, adjust the torque compensation gain in the following circumstances.
• If the cable is very long, increase the set value.
If the (maximum applicable) motor capacity is smaller than the Inverter capacity, increase the set value.
•
If the motor is vibrating, reduce the set value.
•
Adjust this parameter so that the output current during low-speed rotation does not exceed the Inverter rated
output current range.
Description
Set the torque compensation gain using the multi-
plication factor. Normally, there is no need to
change this parameter. Adjust the torque compen-
sation gain in the following circumstances.
• If the cable is very long, increase the set value.
• If the motor is smaller than the maximum
applicable motor of the Inverter, increase the
set value.
• If the motor is vibrating, reduce the set value.
Adjust this parameter so that the output current
during low-speed rotation does not exceed the
Inverter rated output current range.
Set the primary delay for the torque compensation
function in ms.
Normally, there is no need to make this setting.
Adjust this parameter in the following circum-
stances.
• If the motor is vibrating, increase the set value.
• If the motor response is low, decrease the set
value.
Sets the value based on 100% motor's rated
torque.
Sets the value based on 100% motor's rated
torque.
Sets the rise time constant (ms) for the starting
torque value.
The filter is disabled if set between 0 and 4 ms.
Improved Operating Efficiency
Control Methods
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0.00 to
1.00 Yes A
2.50
0 to
200 ms
No A
10000
*1
0.0 to
0.0% No No
200.0
-200.0 to
0.0% No No
0.0
0 to 200 10 ms No No
Open
V/f
Loop
with
Vec-
PG
tor
A A
A A
*2
No
A
*2
No
A
*2
No
A
37
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