YASKAWA varispeed G7 CIMR-G7B series Instruction Manual page 138

Torque Compensation: C4
User constants for torque compensation are shown in the following table.
Con-
stant
Number
Torque com-
pensation
gain
C4-01
转矩补偿增
益
Torque com-
pensation
primary
delay time
constant
C4-02
转矩补偿延
迟时间
Forward
starting
torque
C4-03
正转起动
转矩量
Reverse
starting
torque
C4-04
反转起动
转矩量
Starting
torque time
constant
C4-05
起动转矩时
间
* The factory setting will change when the control method is changed. The open-loop vector 1 factory settings are given.
-24
5
Name
Description
Display
Sets torque compensation
gain as a ratio.
Usually setting is not neces-
sary.
Adjust in the following cir-
cumstances:
• 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 val-
ues.
Adjust the output current
range at minimum speed rota-
tion so that it does not exceed
the Inverter rated output cur-
rent.
Do not alter the torque com-
pensation gain from its
default (1.00) when using the
open-loop vector 1 control
method.
The torque compensation
delay time is set in ms units.
Usually setting is not neces-
sary.
Adjust in the following cir-
cumstances:
• When the motor is oscillat-
ing, increase the set values.
• When the responsiveness
of the motor is low,
decrease the set values.
Sets the forward starting
torque as a percentage of the
motor rated torque.
Sets the reverse starting
torque as a percentage of the
motor rated torque.
Sets the delay time in ms for
starting torque. The filter is
disabled if the time is set to 0
to 4 ms.
Change
Setting Factory during
Range Setting Opera-
V/f
tion
0.00 to
1.00 Yes A
2.50
0 to
20 ms
No A
10000
*
0.0 to
0.0% No No
200.0
-200.0
0.0% No No
to 0.0
0 to
10 ms No No
200
Control Methods
MEMO-
Open Open
BUS
V/f Loop Flux Loop
Regis-
with Vec- Vec- Vec-
ter
PG tor tor tor
1 2
A A No No 215H
A A No No 216H
No A No No 217H
No A No No 218H
No A No No 219H
Page
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