6-60
Adjust
the slip compensation primary delay time if the motor slip compensation
responsiveness is low
,
or
if the speeds are unstable. (This does not normally need to be set.) If responsiveness is low
, lower the
set value. If speeds are unstable, raise the set value.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C3-03 Slip Come Limit 0 to 250 % 200 Adv. --- Advanced ---
This parameter cannot be changed during operation.
Parameter
C3-03 sets the slip compensation limit as a percentage of motor rated slip (E2-02), with the
motor rated slip taken as 100%.
If
the speed is lower than the target value and does
not change even when the slip compensation gain is
adjusted, it is possible that the slip compensation limit has been reached. Raise the limit and then check
again. Make sure, however, that the value of the sum of the command frequency and the slip com-
pensation limit does not exceed the speed capacity of the machinery.
Slip compensation limit
Output frequency
E1-06: Maximum voltage frequency
E1-04: Maximum output frequency
The limit is as shown below in the constant
torque and constant output areas.
E1-04
E1-06
x C3 - 03
C3 - 03
E1-06 E1-04
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C3-04 Slip Come Regen 0, 1 --- 0 Advanced ---
This parameter cannot be changed during operation.
Explanation of Set Value
Set value Contents
0 Slip compensation disabled during regeneration
1 Slip compensation enabled during regeneration
Parameter
C3-04 enables or disables slip compensation during regeneration. The amount of regenera
-
tion
is momentarily increased when this function is used, so some control option (e.g., control resistor
,
Control Resistor Unit, Braking Unit) may be required.
H Setting the Torque Compensation Function (C4)
The
torque compensation function detects increases in the motor load, and increases
the output torque
to compensate.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
C4-01 Torq Comp Gain 0.00 to
2.50
Multi-
ple
1.00 Advanced ---
Advanced Operation Chapter
6
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