May 2nd, 2023
Please refer to relevant contract manual for full description of these trips but here are some common causes.
Check the following:
- Brake is lifting correctly. (Check Brake and Brake Circuit).
- Lubricate car/counterweight guides.
- Check for stiction in car/counterweight guides.
- Check motor encoder wiring.
- Possible faulty motor encoder.
- Excessive Accel/Decel rates.
- Check motor encoder coupling.