Case 1: Standard case
The line contactor K3 is closed or opened solely by the supply and regenerative module via the coupling relay K1 according to technical requirements.
The voltage supply is switched on and off centrally by the customer by switching L1, L2, L3 and 24 V, e.g. by a main switch.
Precharge inhibit is not active. The contacts X13:PCE and X13:GND are jumpered at the supply and regenerative module.

K1 | Coupling relay for line contactor K3 |
K3 | Line contactor |