SM74 error #15, Dyn test 1 error SRK : 7FDF

We are getting error #15 in heidelberg sm74
please advice...

 

Check all the safety devices and red safety buttons.

 

Cheked all, every botton is working fine

 

Did you checked your SRK board, check the interface between SRK and REK1.

 

Yes check SRK board its fine

 

There is no cable connected between SRK & REKREK1

 

in dyn test 1 the code in front of SRK is 7FDF and it is blinking

 

Where in RER2

 

Actually this problem occurred when the machine was in running cindition, suddenly there was power fluctuation for few seconds and then machine got stopped. After that when we switched on the mains error #15 occurred.

 

Does the machine run right now with the error or are you down? If it is running, are there any issues with the machine?

 

No, its not running

 

Hi,
This error points to a wrong braking behaviour of your machine. Make sure you test your SRK board on a similar press to confirm that it is okay though fault can also be caused by any other board on top(1st) cabinet layer. The RER2 is the motherboard on which the REKs/ SRK plug into. Hope you have basically rebooted the machine and check that fuses are not blown too.
Good luck.

 

Yes I have cheked all the fuses and also checked the SRK board.

 

How did you checked the board, on another press?

 

Yes

 

in INT TEST 1 SLT_CON : 3FFF is blinking.
Pl advice

 

It can be any of the issues listed below.
Converter power part cannot work (connections, voltages).
Thyristor test cannot be carried out (e.g. no supply voltage).
Wrong motor detected (code resistance).
Mains voltage too high (> AC 480V + 15%)

 

Input voltage is AC 380 and DC 120 (Feild)

 

What age your machine is?
Can you take a picture of main motor actual values?

 

The problem has been solved.
there was a problem in SVT Card
Thank you