a. Emergency stop activated
To do:
1. Check emergency stop wires & -buttons, acknowledge alarm
2. Establish safe condition and reset emergency stop
a. Defective control system
To do:
1. Check system according to electrical diagram
a. Emergency stop circuit has not been connected to external chain drive
To do:
1. Connect emergency stop circuit to external chain drive
b. Defective control system
To do:
1. Check system according to electrical diagram
2. Defective control system
3. Check system according to electrical diagram