C3: Slip Compensation - YASKAWA CIPR-GA50C series Technical Manual

12.4 C: Tuning
■
C2-01: S-Curve Time @ Start of Accel
No.
Name
(Hex.)
C2-01 S-Curve Time @ Start of
Accel
(020B)
■
C2-02: S-Curve Time @ End of Accel
No.
Name
(Hex.)
C2-02 S-Curve Time @ End of
Accel
(020C)
■
C2-03: S-Curve Time @ Start of Decel
No.
Name
(Hex.)
C2-03 S-Curve Time @ Start of
Decel
(020D)
■
C2-04: S-Curve Time @ End of Decel
No.
Name
(Hex.)
C2-04 S-Curve Time @ End of
Decel
(020E)
◆

C3: Slip Compensation

The Slip Compensation function improves the speed accuracy of an induction motor. As loads on induction
motors increase, motor slip increases and motor speed decreases. By adjusting the output frequency in accordance
with the motor load, it compensates the slip and makes the motor speed equal to the frequency reference.
■
C3-01: Slip Compensation Gain
No.
Name
(Hex.)
C3-01 Slip Compensation Gain
(020F)
RUN
Note:
Correctly set these parameters before changing the slip compensation gain:
• E2-01 [Motor Rated Current (FLA)]
• E2-02 [Motor Rated Slip]
• E2-03 [Motor No-Load Current]
Adjust this parameter as follows if necessary:
• If the motor speed is slower than the frequency reference, increase this parameter in 0.1-unit increments.
• If the motor speed is slower than the frequency reference value, decrease this parameter value in 0.1-unit
increments.
■
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.
526
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the S-curve acceleration time at start.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the S-curve acceleration time at completion.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the S-curve deceleration time at start.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the S-curve deceleration time at completion.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the gain for the slip compensation function. Usually it is not necessary to change this setting.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
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.
Description
Description
Description
Description
Description
Description
YASKAWA SIEPC71061753A GA500 Technical Manual
Default
(Range)
Determined by A1-02
(0.00 - 10.00 s)
Default
(Range)
0.20 s
(0.00 - 10.00 s)
Default
(Range)
0.20 s
(0.00 - 10.00 s)
Default
(Range)
0.00 s
(0.00 - 10.00 s)
Default
(Range)
Determined by A1-02
(0.0 - 2.5)
Default
(Range)
Determined by A1-02
(0 - 10000 ms)