5-22
îš„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. The V/f control factory settings are given.
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Page
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
C3-01
Slip com-
pensation
gain
Used to improve speed accu-
racy when operating with a
load.
Usually setting is not neces-
sary.
Adjust this constant at the
following times.
• When actual speed is low,
increase the set value.
• When actual speed is high,
decrease the set value.
Used as the applicable con-
trol gain when using flux
vector control.
0.0 to
2.5
0.0* Yes A No A A 20FH
4-18
6-43
C3-02
Slip com-
pensation
primary
delay time
Slip compensation primary
delay time is set in ms units.
Usually setting is not neces-
sary.
Adjust this constant at the
following times.
• Reduce the setting when
slip compensation respon-
sive is slow.
• When speed is not stabi-
lized, increase the setting.
0 to
10000
2000
ms
*
No A No A No 210H
4-18
6-43
C3-03
Slip com-
pensation
limit
Sets the slip compensation
limit as a percentage of
motor rated slip.
0 to
250
200% No A No A No 211H 6-43
C3-04
Slip com-
pensation
selection
during
regeneration
0: Disabled.
1: Enabled.
When the slip compensation
during regeneration function
has been activated, as regen-
eration capacity increases
momentarily, it may be nec-
essary to use a braking
option (braking resistor,
Braking Resistor Unit or
Braking Unit.)
0 or 1 0 No A No A No 212H 6-43
C3-05
Output volt-
age limit
operation
selection
0: Disabled.
1: Enabled. (The motor flux
will be lowered automati-
cally when the output
voltage become satu-
rated.)
0 or 1 0 No No No A A 213H 6-43
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