4-14
Motor Slip Compensation: C3
* The factory setting will change when the control method is changed. (The V/f control factory settings are given.)
Param-
eter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Register
Page
V/f
Open
Loop
Vector
Closed
Loop
Vector
Display
C3-01
Slip compen-
sation gain
Used to improve speed accu-
racy when operating with a
load.
Usually changing this setting is
not necessary.
Adjust this parameter under
the following circumstances.
• When motor speed is lower
than the frequency reference
increase the set value.
• When motor speed is higher
than the frequency reference
decrease the set value.
0.0 to
2.5
1.0* Yes A A A 20FH 5-26
Slip Comp
Gain
C3-02
Slip compen-
sation delay
time
Sets the Slip Compensation
delay time.
Usually changing this setting is
not necessary.
Adjust this parameter under
the following circumstances.
• Reduce the setting when
Slip Compensation respon-
siveness is low.
• When speed is not stable,
increase the setting.
0 to
10000
2000 ms
*
No A A No 210H 5-26
Slip Comp
Time
C3-03
Slip compen-
sation limit
Sets the slip compensation
limit as a percentage of motor
rated slip.
0 to
250
200% No A A No 211H 5-26
Slip Comp
Limit
C3-04
Slip compen-
sation selec-
tion during
regeneration
0: Disabled.
1: Enabled.
When the slip compensation
during regeneration function
has been activated and regen-
eration capacity increases
momentarily, it might be nec-
essary to use a braking option
(braking resistor, braking resis-
tor unit or braking unit.)
0 or 1 1 No A A No 212H 5-26
Slip Comp
Regen
C3-05
Output volt-
age limit
operation
selection
0: Disabled.
1: Enabled. (The motor flux
will be lowered
automatically when the
output voltage become
saturated.)
0 or 1 1 No No A A 213H 5-26
Output V
limit
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