2.3 C: Tuning
YASKAWA ELECTRIC
TOEP C710687 03B FSDrive-MV1000 Parameter Guide
133
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C3-17: Maximum Output Voltage Limit Level (Percentage Modulation)
Sets the output voltage limit operation determined by C3-18 (percentage modulation) when C3-05 is enabled.
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C3-18: Output Voltage Limit Level
Sets the maximum percentage of output voltage reduction when C3-05 is enabled.
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C3-21: Motor 2 Slip Compensation Gain
Improves speed accuracy for motor 2 and functions in the same way that C3-01 functions for motor 1. Adjust this
parameter only after setting the motor rated current (E4-01), motor rated slip (E4-02), and the motor no-load current
(E4-03).
Adjustments might be needed in the following circumstances:
• Increase C3-21 if the motor at constant speed is slower than the frequency reference.
• Decrease C3-21 if the motor at constant speed is faster than the frequency reference.
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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
for details on adjusting this parameter.
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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).
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
illustrated in
.
Figure 2.26
Figure 2.26 Slip Compensation Limit
No.
Name
Setting Range
Default
C3-17
Maximum Output Voltage Limit Level (Percentage
Modulation)
85.0 to 100.0%
90.0%
No.
Name
Setting Range
Default
C3-18
Output Voltage Limit Level
30.0 to 100.0%
90.0%
No.
<1>
Refer to E3-01 (Motor 2 Control Mode) Dependent Parameters on page 86
for details on default settings.
Name
Setting Range
Default
C3-21
Motor 2 Slip Compensation Gain
0.0 to 2.5
Determined by E3-01
No.
Name
Setting Range
Default
C3-22
<1> Refer to
E3-01 (Motor 2 Control Mode) Dependent Parameters on page 86
for details on default settings.
Motor 2 Slip Compensation Primary Delay Time
Constant
0 to 10000 ms
Determined by E3-01
No.
Name
Setting Range
Default
C3-23
Motor 2 Slip Compensation Limit
0 to 250%
200%
E3-04
E3-06 × C3-23
C3-23
E3-04
Maximum
Frequency
E3-06
Base
Frequency
Output Frequency
common_TMonly
MV1000ParameterGuide_E_conditional.book 133 ページ ２０１３年１０月１１日 金曜日 午後８時１８分
