ENCODER A<>B
ABB · ACS800
¿Qué significa 7302 ?
The phasing of the pulse encoder connected to the ABB ACS800 drive is incorrect; specifically, phase A is connected to the terminal intended for phase B, and vice versa. This results in inverted or incorrect speed and position feedback (3.09 AW 2 bit 4), leading to motor instability or incorrect direction of rotation.
Causas comunes
- Incorrect wiring of pulse encoder phases A and B at the drive's encoder input terminals or the encoder interface module terminals.
- Accidental swapping of encoder signal wires during installation or maintenance.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Verify the pulse encoder wiring against the ABB ACS800 drive's wiring diagram and the encoder manufacturer's documentation, paying close attention to phase A and B connections.
- 2
Physically interchange the connections of pulse encoder phases A and B at the drive's encoder input terminals (or the interface module, if applicable).
- 3
After re-wiring, perform a motor ID run or utilize the drive's monitoring parameters to check the encoder feedback and confirm correct phasing and motor rotation direction.