Missing ink/water speed control on SM74 CPC1

Hello guys, The machine is Heidelberg SM74 1998 model. After installation at my work, machine is good running but missing ink/water control from 2nd Cyan Unit on CPC1. I'm already checked the ink rollar motor and electric connection, all is good. But I can't control +/- on only 2nd unit. Please help with your best advice. With much thank.

 

Hi,
On CPTRONIC, Service 1, check INIT or DYN test for HAK module. Most probably there should be an error.

 

Hi sir:

Check this:

Attached is there

 

These codes is from Init-Test from cp tronic. Please explain about these codes. I haven’t user/service manual books.

 

As I can see, there is a malfunction on HAK-3 M2 module. FFF5 indicates a loose or bad connection. Check the followings:
1- Find the plugs of auxiliary drives under the machine at Drive Side. You may need to go so deep inside to find them. There are two balck round plugs connected to gray cables, one of them is for Ink motor and the other is for Dampening motor. Check if they are clean and not filled with oil. You can clean them by dry contact cleaner or IPA. Use blast air to clean and remove the residues.
2- Under Service 2 menu, check HAK modules software version. See the photo in attach. Use +/- buttons to find HAK modules.
3- Check the coding of Auxiliary Drives. See the photo in attach. Use +/- buttons to find HAK modules.
Take photo from each step and come back to us.
Good luck

 

Thank you very much for this explanation Sir.