I'm pretty new in this forum and want to say hello to you guys.
So, and here is my problem. I've got a Simatic S5 135U PLC equipped with a pwr supply 6ES5 955-3NC12 (24V/18A).
This one continuously shows a "Fan Fault" (red LED at the front) after I have replaced the broken fans.
Now I want to check the flow control circuit and the small resistors below the fans to see if they are working and I was wondering if some of you guys might have schematic diagrams of the power supply.
A diagram of a similar power supply would also be helpful, because I expect the circuit beeing the same as sor my pwr supply.
Thanks a lot in advance,
Frank
schneif5@gmail.com