IRC 5 Controller Problem

Amelie

Hello Everyone.
I Have IRB6700 Robot and My Controller is IRC 5.
My Problem;

" W    Hardware            34401    DC link voltage too low warning          2020-06-19 15:00:50 In drive module 1, the drive unit at unit position 1 has a DC link voltage that is close to minimum limit. {args: "1", "1"} "

The robot works but gives warning. What should I do. I measured the voltages, but I did not see any problems. I may still be wrong. What should I consider when measuring. And could something else be the source of the problem?

innebandy

Root cause: The incoming mains voltage to the rectifier unit is out of specification. If the voltage is okay, Check all internal 3-phase components (main switch, mains filter, fuse, contactors) and cabling in the drive module. The last is to replace the Main Drive Unit.

Amelie

I replaced the other cables in the pan of the cables where the power cables and other signal cables pass, and the problem solved itself. Why do you think it might have happened? Because I still don't understand.