7302

Encoder Phase A/B Swapped

Allen-Bradley · ABB ACS800 Standard 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 will result in incorrect speed or position feedback, potentially causing motor rotation direction issues or control instability.

Source: ABB ACS800 Standard Firmware
Open Manual (Page 233)