Chapter 5 Parameter Introductions
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169
will keep constant within the ac drive output capacity.
P9.08 Over modulation enable
Range: 0, 1
【
0
】
0: Disabled
1: Enabled
Note:
◆
When the over modulation function is enabled, the ac drive voltage output capacity
can be improved. However, if the output voltage is too high, the output current
harmonics will increase.
P9.09 Drop control (load distribution)
Range: 0.00
～
10.00Hz
【
0.00Hz
】
Note:
◆
When several ac drives drive one load at the same time, the function will make the ac
drives share the load equally.
◆
When the load current of one ac drive is greater (>50%), this ac drive will reduce its
output frequency to shed part of the load according to the settings of this parameter.
Once the load current is below 50% (<=50%), the ac drive will stop reducing its
output frequency. If the load current has been greater than 50%, the output frequency
reduces until the difference between reference frequency and P9.09.
Tips:
Slip compensation and drop control cannot be used at the same time. Slip
compensation has a higher priority.
M
M
Load
Inverter 1
Inverter 2
Belt
Fig. 5-9-3 Drop control
5.11 Motor Parameters (Group PA)
PA.00 Motor polarity number
Range: 2
～
56
【
4
】
PA.01 Rated power
Range: 0.4
～
999.9kW
【
This value depends on the ac
drive model
】
PA.02 Rated current
Range: 0.1
～
999.9A
【
This value depends on the ac
drive model
】
Note:
