User Constant Tables
5-
15
Motor Slip Compensation: C3
User constants for slip compensation are shown in the following table.
* The factory setting will change when the control method is changed.
Constant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control
Methods
MEMOBUS
Register
Open-
loop
Vector
Flux
Vector
Display
C3-01
Slip compensation
gain
Used to improve speed accu-
racy when operating with a
load.
Usually setting is not necessary.
Adjust this constant at the fol-
lowing times.
• When actual speed is low,
increase the set value.
• When actual speed is high,
decrease the set value.
Used as the applicable control
gain when using flux vector
control.
0.0 to
2.5
1.0*
Yes
A
A
260H
Slip Comp Gain
C3-02
Slip compensation
primary delay time
Slip compensation primary
delay time is set in ms units.
Usually setting is not necessary.
Adjust this constant at the fol-
lowing times.
• Reduce the setting when slip
compensation responsive is
slow.
• When speed is not stabilized,
increase the setting.
0 to
10000
3000
ms
*
No
A
A
261H
Slip Comp Time
C3-03
Slip compensation
limit
Sets the slip compensation limit
as a percentage of motor rated
slip.
0 to
250
200%
No
A
No
262H
Slip Comp Limit
C3-04
Slip compensation
selection during
regeneration
0: Disabled.
1: Enabled.
When the slip compensation
during regeneration function
has been activated, as regenera-
tion capacity increases momen-
tarily.
0 or 1
0
No
A
No
263H
Slip Comp Regen
C3-05
Output voltage limit
operation selection
0: Disabled.
1: Enabled. (The motor flux
will be lowered automati-
cally when the output volt-
age become saturated.)
0 or 1
1
No
A
A
264H
Output V limit
