YASKAWA FSDrive-MV1000 - Page 133

2.3 C: Tuning
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide 133
n 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.
n
C3-18: Output Voltage Limit Level
Sets the maximum percentage of output voltage reduction when C3-05 is enabled.
n
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.
n
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 131 for details on adjusting this parameter.
n
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
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 <1>
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
<1>
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