Phase failure

Hva betyr E2818 ?

One or more phases of the incoming AC mains power supply are missing or significantly unbalanced. This can cause severe operational issues and damage to the drive.

• Loss of one or more phases in the incoming AC mains supply.
• Blown fuse or tripped circuit breaker in one phase.
• Loose or open connection in the mains power cabling.
• Faulty contactor or circuit breaker.

Klikk på steg for å spore fremgangen.

1. 1

   Check all three phases of the incoming AC mains voltage (L1-L2, L2-L3, L3-L1) for balance and presence.

2. 2

   Inspect all fuses and circuit breakers in the mains power circuit and replace any blown fuses or reset tripped breakers.

3. 3

   Verify all power connections from the mains supply to the drive for tightness and continuity.

4. 4

   Check the functionality of any upstream contactors or phase monitoring relays.