Stahl folding machine kd model error 20

[RRRCCC]

STAHL FOLDING MACHINE KD MODEL ERROR CODE SHOWS - 20,
After Switch ON the Machine the error shows "stationen verbinden" What could be the reason and How to Fix the Issue. we have changed the Board, Batteries , Still having the same error. Please Support

 

[Mathew]

Check the plugs from main station to 2nd station or delivery. What is the machine configuration?

 

[RRRCCC]

Check the plugs from main station to 2nd station or delivery. What is the machine configuration?

Thank you very much for your immediate response sir. I am very greatful for your support. Checked the Plugs and Cables ,Changed the cable also. Still Same error persists. Machine Config. KD 7814-KTL-FD , i have attached the screen shot .

 

[Mathew]

It doesn't give so much information from the plate. Send some photos from the machine.

 

[RRRCCC]

Ok sir. Will send it. Please give the best solution to fix the issue sir