Polar 115MON clamping problem

I have clamping problem with my cutter. The clamp don't work & shows "LOCKING VALVE 42V FAULTY" . The machine number is 5531017. please advise.

Best Regard

 

Lack valve Y315 does not receive 42VDC.
Check 42-VDC supply voltag

 

Thanks for your support.
Please guide me the location of Y315.
While SK card has 48V.

 

Polar 78 Es
Hi guy having this issue
Locking valve 25v faulty
1. Acknowledge 140 error
2. Clamp stuck
Need assistance
Thank in Advance

 

thank you @synthology problem is solved.