No.
Parameter Name
Setting Range
Default
C3-01
Slip Compensation Gain
0.0 to 2.5
Determined by
A1-02
Note:
Default setting is 0.0 in V/f Control (A1-02 = 0), and 1.0 in Open Loop Vector Control (A1-02 = 2). In Closed Loop Vector Control, slip
compensation corrects inaccuracies that can result from temperature fluctuation in the rotor.
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C3-02: Slip Compensation Primary Delay Time
Adjusts the filter on the output side of the slip compensation function. Although this parameter rarely needs to be changed,
adjustments may be necessary in the following situations:
• Decrease the setting when the slip compensation response is too slow.
• Increase this setting when speed is unstable.
No.
Parameter Name
Setting Range
Default
C3-02
Slip Compensation Primary Delay Time
0 to 10000 ms
Determined by
A1-02
Note:
Default for V/f Control (A1-02 = 0) is 2000 ms. Default for Open Loop Vector Control (A1-02 = 2) is 200 ms.
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C3-03: Slip Compensation Limit
Sets the upper limit for the slip compensation function as a percentage of the motor rated slip (E2-02).
No.
Parameter Name
Setting Range
Default
C3-03
Slip Compensation Limit
0 to 250%
200%
The slip compensation limit is constant throughout the constant torque range (frequency reference ≤ E1-06). In the constant
power range (frequency reference ≥ E1-06), it is increased based on C3-03 and the output frequency as shown in the following
diagram.
E1-04
E1-06 × C3-03
C3-03
E1-04
Maximum
Frequency
E1-06
Base
Frequency
Output Frequency
Figure 5.34 Slip Compensation Limit
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C3-04: Slip Compensation Selection during Regeneration
Enables or disables slip compensation during regenerative operation.
This function does not operate when the output frequency is too low, regardless of whether it has been enabled.
No.
Parameter Name
Setting Range
Default
C3-04
Slip Compensation Selection during Regeneration
0 to 2
0
Setting 0: Disabled
Slip compensation is not provided. Depending on the load and mode of operation, the actual motor speed will be lower or
higher than the frequency reference.
Setting 1: Enabled (6 Hz and above)
Slip compensation is enabled during regenerative operation. It will not be active at output frequencies below 6 Hz.
Setting 2: Enabled (compensation provided wherever possible)
Slip compensation is enabled during regenerative operation and at frequencies as low as 2 Hz. The drive uses the motor rated
slip set to E2-02 to automatically calculate the frequency range where compensation will be disabled.
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C3-05: Output Voltage Limit Operation Selection
Determines if the motor flux reference is automatically reduced when output voltage reaches the saturation range.
5.3 C: Tuning
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
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5
Parameter Details
Summary of Contents for U1000 iQpump Drive
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