184 Guard circuit B; trouble (Man Roland 202E)

[Ryad]

Dear colleagues,
The machine displays this message as soon as it is switched on. The oil pump does not start.
The machine runs in intermittent but not continuously.
I have tested the switches but cannot find any that are faulty.
I need help to sort this problem out!
Thanks

 

[drukman]

I would help, but I don't understand French. Switch to German, please.

 

[Ryad]

I would help, but I don't understand French. Switch to German, please.

Dear Sir, thanks for you repply, i join you the error message in German

 

[drukman]

Here. One of these contacts, B249 is not working properly.

 

[Ryad]

Dear Drukman, thanks for your reply the contacts seem to be working normally

 

[Iordanis]

Dear Drukman, thanks for your reply the contacts seem to be working normally

Dear colleagues,
The machine displays this message as soon as it is switched on. The oil pump does not start.
The machine runs in intermittent but not continuously.
I have tested the switches but cannot find any that are faulty.
I need help to sort this problem out!
Thanks

Play with the switches many times open and close not the emergency stops

 

[Ryad]

Play with the switches many times open and close not the emergency stops

Hi, the problem persists

 

[Ryad]

Here. One of these contacts, B249 is not working properly.

We have 24V out put on the pin 12 and 15 on A211

 

[drukman]

Measure at the controller input. The problem may be in the A335 or the wiring.