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6RA7018 Unsteady motor speed at no load, large fluctuations in no-load current
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Check first, when it is empty, is the given speed fluctuation great?
The purpose of this is to distinguish between a given speed fluctuation or a poor control of the device itself?
If it is a given speed fluctuation, then start from the plc given speed;
If the control of the device itself is poor and the resulting speed fluctuation is large, start with the pi parameter of the current loop/speed loop;
If the control of the device itself is poor, the preliminary judgment is that the current loop pi is not properly set or the current detection is disturbed.
Siemens inverter repair
Siemens inverter repair center
SIEMENS/Siemens Inverter Repair Center/Maintenance Service: 24H Service Hotline: 15800462088
Siemens inverter repair center, provide home maintenance inspection and repair services: 24H service hotline: 15800462088
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