Omron SYSDRIVE 3G3RV, User Manual, Page: 253 / 446

Improved Operating Efficiency
6-
37
n
Related Parameters
* 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.
n
Adjusting 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.
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
LCD Display
C4-01
Torque
compensation gain
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.
0.00
to
2.50
1.00 Yes A A A
Torq
Comp Gain
C4-02
Torque
compensation pri-
mary
delay time constant
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.
0
to
10000
200
ms
*1
No A A A
Torq
Comp Time
C4-03
Starting
torque value (for-
ward)
Sets
the value based on 100% motor’s rated
torque.
0.0
to
200.0
0.0% No No No
A
*2
F
TorqCmp@start
C4-04
Starting
torque value
(reverse)
Sets
the value based on 100% motor’s rated
torque.
-200.0
to
0.0
0.0% No No No
A
*2
R
TorqCmp@start
C4-05
Starting
torque time con-
stant
Sets
the rise time constant (ms) for the starting
torque
value.
The
filter is disabled if set between 0 and 4 ms.
0
to 200
10
ms
No No No
A
*2
TorqCmp
Delay T