EF1 on DELTA inverters: Emergency stop

DELTA inverters: VFD-EL، MS300

Disconnect the supply and wait for the capacitors to discharge before opening the inverter or touching its terminals.

Common causes

1. 1The emergency stop button wired to the drive is pressed
2. 2Broken emergency stop wiring

Try first

1. 1Release the emergency stop
2. 2Check its wiring
3. 3Press RESET