7302
Encoder Phase A/B Swap
ABB · ACS560 Standard Control Program Firmware
What does 7302 mean?
The pulse encoder phasing is incorrect, specifically Phase A is connected to the terminal for Phase B and vice versa. This wiring error will cause the drive to misinterpret motor direction and speed, leading to incorrect motor operation, instability, or immediate trips.
Source: ABB ACS560 Standard Control Program Firmware
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