YASKAWA GA700 Series Technical Manual page 699

■
C3-02: Slip Compensation Delay Time
No.
Name
(Hex.)
C3-02 Slip Compensation Delay
Time
(0210)
RUN
Use these settings to adjust this parameter as necessary:
• When the speed is not stable, increase the setting.
• When the slip compensation response is too slow, decrease the setting.
■
C3-03: Slip Compensation Limit
No.
Name
(Hex.)
C3-03 Slip Compensation Limit
(0211)
If you increase the value of C3-01 [Slip Compensation Gain] and the motor speed is slow, use this parameter. The
drive uses this parameter when the slip is at the upper limit of slip compensation. Make sure that you measure the
motor speed when you increase this parameter value. Set this parameter to make the frequency reference and the
slip compensation limit less than the permitted range of the machine.
The slip compensation limit is constant in the constant torque range (frequency reference ≤ E1-06 [Base
Frequency]). In the constant output range where the frequency reference > E1-06, the slip compensation limit
increases with the C3-03 value and the output frequency as shown in
■
C3-04: Slip Compensation at Regen
No.
Name
(Hex.)
C3-04 Slip Compensation at
Regen
(0212)
If you apply a regenerative load when the slip compensation function during regeneration is active, the quantity of
regeneration can increase immediately. In this condition, it is necessary to use a dynamic braking option (braking
resistor or braking resistor unit).
0 : Disabled
The drive will not do Slip compensation during regeneration.
The load and operation status (regenerative operation) can cause the motor speed to be higher or lower than the
frequency reference.
1 : Enabled Above 6Hz
Slip compensation function is enabled during regeneration. Slip compensation is disabled at output frequencies of
6 Hz or less.
2 : Enabled Above Defined Range
The drive uses E2-02 [Motor Rated Slip] to automatically calculate the frequency range where it will disable slip
compensation function during regenerative operation.
Slip compensation is enabled at frequencies as low as 2 Hz.
YASKAWA SIEPC71061705H GA700 Series Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the slip compensation delay time when speed is unstable or when the slip compensation
response is too slow. Usually it is not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets the upper limit for the slip compensation function as a percentage of the motor rated slip.
Figure 12.52 Slip Compensation Limit
V/f CL-V/f OLV CLV AOLV
Sets the slip compensation function during regeneration.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Figure 12.52.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
12.4 C: Tuning
Default
(Range)
Determined by A1-02
(0 - 10000 ms)
Default
(Range)
200%
(0 - 250%)
Default
(Range)
0
(0 - 2)
12
699