User manual

Symptom Remedy
The electric chain hoists do not respond when
[RUN] is pressed.
1. Check the wiring to the electric chain hoists.
2. Check whether the assigned rotary switch is in ‘UP’ or ‘DOWN’ position.
3. Check that the circuit breaker is in ‘ON’ position.
4. If the emergency stop button is pressed and locked: Make sure that the
reason for pressing the switch is no longer present and turn it clockwise to the
operating position.
The device does not respond at all. 1. Check the mains connection and the main fuse.
2. Check whether the indicator lights [L1], [L2], [L3] for the three phases of the
power supply light up. If this is not the case, the wiring must be corrected.
3. If the emergency stop button is pressed and locked: Make sure that the
reason for pressing the switch is no longer present and turn it clockwise to the
operating position.
4. Maybe the device operates outside the allowed temperature range.
Troubleshooting
Chainhoist Controller CHC-4, CHC-8
41
motor controller