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
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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.
Содержание MD290 Series
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Страница 79: ...3 Electrical Installation 78 3 ...
Страница 80: ...4 Operating Panel Keypad Display 4 1 Introduction 80 4 2 Inbuilt LED Operating Panel 80 ...
Страница 92: ...5 Quick Setup 5 1 Get Familiar With Operating Panel 92 5 2 Setup Flowchart 93 ...
Страница 227: ...7 Interfaces and Communication 226 7 ...
Страница 285: ...10 Troubleshooting 284 11 ...
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