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Fred BarkerSep 5, 2025
Why does my ABB PSTX470 Controller motor make a bad sound during start?
- WWilliam MillerSep 5, 2025
This could be due to an incorrect motor connection. Examine and correct the wiring, and connect the control supply voltage, referring to the circuit diagram. Alternatively, the ramp time for the start might be incorrect. Try different ramp times to find the best setting.