voltage monitor

I have a voltage low led on in my voltage monitor section.
This has enabled the basp led to turn on along with an error light at a cable connection labeled 60A 3.1.
Can't locate problem as I am a noob to this.

Siemens S5 6E55 955-3LC42

Any help greatly appreciated!

Tom

So am I with the S5
I suggest you measure the associate voltages
Although I am thinking it is the backup battery that is the cause.
Check the manual - if available.
Under no circumstances - do not remove the battery with out checking
I think you need to change it with the power ON -
If you do this wrong you will loose the program
BEWARE

It was a simple fuse inside the transformer..49 cent fix. Go figure....

well done - this is the most common fault that you will find.
NOTE
Always measure the voltages