6. Description of Parameters
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6
6.5.5 Improving Field Weakening Area Performance
Function Code Parameter Name Setting Range Default
A5-05
0D[RXWSXWYROWDJHFRHI¿FLHQW 100% to 110% 105%
This parameter indicates boost capacity of maximum voltage of the AC drive. Increasing A5-05
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an increase in motor current ripple and an increase in motor heating.
Decreasing it will reduce motor current ripple and motor heating. Be aware that this will lower
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normally.
6.5.6 Auxiliary Control
Function Code Parameter Name Setting Range Default
A5-00
DPWM switchover frequency upper limit 0.00 to 15.00 Hz 12.00 Hz
Increasing this parameter to the max. frequency will reduce motor audible noise.
Function Code Parameter Name Setting Range Default
A5-01
PWM modulation pattern 0: Asynchronous modulation
1: Synchronous modulation
0
When the output current oscillates or large current harmonics occur, set A5-01 = 1.
Function Code Parameter Name Setting Range Default
A5-03
Random PWM depth 0: Random PWM invalid
1 to 10
0
This parameter helps to lower motor audible noise and reduce electromagnetic interference.