YASKAWA U1000 Series Technical Manual page 220

5.3 C: Tuning
No.
C3-05
Setting 0: Disabled
Setting 1: Enabled
■ C3-21: Motor 2 Slip Compensation Gain
Used to improve speed accuracy for motor 2. Functions in the same way that C3-01 functions for motor 1.
Adjust this parameter only after the motor 2 rated current (E4-01), motor 2 rated slip (E4-02), and the motor 2 no-load
current (E4-03) have all been set.
Refer to C3-01: Slip Compensation Gain on page 218
No.
C3-21
Note: Default setting is 0.0 in V/f Control (E3-01 = 0). Default setting is 1.0 in Open Loop Vector Control (E3-01 = 2) and Closed Loop
Vector Control (E3-01 = 3). In Closed Loop Vector Control, slip compensation gain acts as an adaptable gain.
■ C3-22: Motor 2 Slip Compensation Primary Delay Time
Functions for motor 2 in the same way that C3-02 functions for motor 1.
Refer to C3-02: Slip Compensation Primary Delay Time on page 219
No.
C3-22 Motor 2 Slip Compensation Primary Delay Time
Note: The default for V/f Control (E3-01 = 0) is 2000 ms. The default for Open Loop Vector Control (E3-01 = 2) is 200 ms.
■ C3-23: Motor 2 Slip Compensation Limit
Sets the upper limit for the slip compensation function as a percentage of the motor rated slip (E4-02).
No.
C3-23
The slip compensation limit is constant throughout the constant torque range (frequency reference ≤ E3-06). In the
constant power range (frequency reference > E3-06), it is increased based on C3-23 and the output frequency as shown in
Figure 5.35.
Figure 5.35
C3-24: Motor 2 Slip Compensation Selection during Regeneration
■
Functions for motor 2 in the same way that C3-04 functions for motor 1.
No.
C3-24 Motor 2 Slip Compensation Selection during Regeneration
Setting 0: Disabled
Setting 1: Enabled (6 Hz and above)
Setting 2: Enabled (compensation provided wherever possible)
220
Parameter Name
Output Voltage Limit Operation Selection
Parameter Name
Motor 2 Slip Compensation Gain
Parameter Name
Parameter Name
Motor 2 Slip Compensation Limit
E3-04
E3-06 × C3-23
C3-23
Figure 5.35 Slip Compensation Limit
Parameter Name
Setting Range
0 or 1
for details on adjusting this parameter.
Setting Range
0.0 to 2.5
for instructions on how to adjust this parameter.
Setting Range
0 to 10000 ms
Setting Range
0 to 250%
Output Frequency
E3-06 E3-04
Base Maximum Output
Frequency Frequency
Setting Range
0 to 2
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
Default
0
Default
Determined by E3-01
Default
Determined by E3-01
Default
200%
Default
0