YASKAWA CIMR-F7A Instruction Manual page 133

Torque Compensation: C4
User constants for are torque compensation shown in the following table.
Con-
Name
stant
Number
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
Torque
the set values.
C4-01 compensa-
• When the motor is oscil-
tion gain
lating, decrease the set
values.
Adjust the output current
range at minimum speed
rotation so that it does not
exceed the Inverter rated
output current.
Do not alter the torque com-
pensation gain from its
default (1.00) when using
the open loop vector control
method.
The torque compensation
delay time is set in ms units.
Usually setting is not neces-
Torque sary.
compensa- Adjust in the following cir-
tion pri- cumstances:
C4-02
mary delay • When the motor is oscil-
time con- lating, increase the set val-
stant ues.
• When the responsiveness
of the motor is low,
decrease the set values.
Forward Sets the forward starting
C4-03 starting torque as a percentage of the
torque motor rated torque.
Reverse Sets the reverse starting
C4-04 starting torque as a percentage of the
torque motor rated torque.
Sets the delay time in ms for
Starting
starting torque. The filter is
C4-05 torque time
disabled if the time is set to 0
constant
to 4 ms.
* The factory setting will change when the control method is changed. The V/f control factory setting is given.
Setting
Description
Range
0.00 to
2.50
0 to
10000
0.0 to
200.0
-
200.0
to 0.0
0 to
200
Control Methods
Change
Open
Factory during
V/f
Loop
Setting Opera-
V/f with
Vec-
tion
PG
1.00 Yes A A
200 ms
No A A
*
0.0% No No No
0.0% No No No
10 ms No No No
User Constant Tables
MEMO
BUS
Flux Page
Regis-
Vec-
ter
tor
tor
4-18
A No 215H
6-46
4-18
A No 216H
6-46
A No 217H -
A No 218H -
A No 219H -
5-
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