5.3 C: Tuning
140
YASKAWA ELECTRIC
SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
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C5-03, C5-04: ASR Proportional Gain 2, ASR Integral Time 2
These parameters determine the responsiveness of ASR at the minimum output frequency. Use the same setting rules as
described for C5-01 and C5-02.
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C5-05: ASR Limit
Sets the ASR output limit as a percentage of the maximum output frequency (E1-04). If the motor slip is high, the setting
might need to be increased to provide proper slip compensation. Use the ASR output monitor U6-04 to determine if ASR
is working at the limit and make settings if necessary. If ASR is operating at the ASR limit, check the pulse signal and the
pulse input settings prior to changes in C5-05.
◆
C6: Carrier Frequency
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C6-01: Drive Duty Mode Selection
The drive has two different duty modes from which to select based on the load characteristics. The drive rated current,
overload capacity, carrier frequency, and maximum output frequency will change depending upon the duty mode
selection. Use parameter C6-01 (Duty Cycle) to select Heavy Duty (HD) or Normal Duty (ND). The default setting is
HD.
Refer to Heavy Duty and Normal Duty Ratings on page 308
for details about the rated current.
Table 5.11 Differences between Heavy and Normal Duty
Note:
By changing the Duty Mode the drive maximum applicable motor power changes and the E2-
and E4-
parameters are
automatically set to appropriate values.
No.
Parameter Name
Setting Range
Default
C5-03
ASR Proportional Gain 2
0.00 to 300.00
0.20
C5-04
ASR Integral Time 2
0.000 to 10.000 s
0.500 s
No.
Parameter Name
Setting Range
Default
C5-05
ASR Limit
0.0 to 20.0%
5.0%
No.
Parameter Name
Setting Range
Default
C6-01
Duty Mode Selection
0 or 1
0
Mode
Heavy Duty Rating (HD)
Normal Duty Rating (ND)
C6-01
0
1
Characteristics
Application
Use Heavy Duty Rating for applications requiring a high
overload tolerance with constant load torque.
Use Normal Duty Rating for applications in which the
torque requirements drop along with the speed.
Over load capability (oL2)
150% of drive rated Heavy Duty current for 60 s
120% of drive rated Normal Duty current for 60 s
L3-02 Stall Prevention
during Acceleration
150%
120%
L3-06 Stall Prevention
during Run
150%
120%
Default Carrier Frequency
8/10 kHz
2 kHz
100 %
100 %
0
Motor Speed
Rated Load
Overload
150 %
Motor Speed
0
100 %
100 %
120 %
Rated Load
Overload
