52 Drive Forward Coil Fault

What does 52 mean?

A fault has been detected in the drive forward coil, indicating an electrical issue with the solenoid responsible for forward motion. This disables both lifting and driving functions.

• Drive forward coil open circuit, short circuit, or high resistance.
• Damaged wiring or loose connections to the drive forward coil.
• Control circuit failure attempting to activate the coil.

Click steps to track your progress.

1. 1

   Verify the control voltage supply to the drive forward coil circuit at the respective terminals.

2. 2

   Inspect all wiring and connections to the drive forward coil for looseness, damage, or corrosion.

3. 3

   Measure the resistance of the drive forward coil across its terminals and compare with specified values (refer to equipment manual) to detect open or short circuits.

4. 4

   Check the output signal from the elevator control system intended for the drive forward coil during a forward motion command.