Heidelberg Quickmaster DI46-4 Fault 15-01

[superstardeejay]

After the whole episode I'd have been more impressed had Heidelberg used industry-standard drives and controls rather than try to make their own which are difficult to fault-find on without going cap in hand to the manufacturer..which is what they want of course!

We had approached an independent Heidelberg dealer who was going to post us a BLT as he was certain that was the fault. As I said before, it took Heidelberg themselves most of the day to find this fault, since, like us, they'd checked for the most common things to cause this rather than an unplugged encoder which, though simple, was by their own admission, way down the list of things to check as it rarely happens.

A standard Control Techniques, Siemens, Mitsubishi etc brushless servodrive would have reported 'encoder fault' or 'feedback error' rather than some nondescript 15-01 code which the manual is rather vague about!

The fault finding route taken was a trade-off (or gamble) that the manager took since most press repairs here are carried out in-house, whether it's having a membrane keyboard remanufactured for an obsolete AB-Dick, a switch-mode rebuilt for a high speed collator or a replacement light guard for an old guillotine. It didnt (and still doesnt) make economic sense to always get the manufacturer in for what may be a simple fault (especially at Heidelberg's exhorbitant rates) and they will always be the last port of call. I am on the side of the end user here, not the manufacturer of the machinery, whose equipment, after all, did us the discourtesy of failing!

 

[Paul Cavanaugh]

Kevin,

I for one think you did an excellent job of trying to locate the problem on your own. You seem to have a commanding understanding of the machine, more so than most, which of course is why you were able to troubleshoot the problem as closely as you did.

As for the "non-descript" 15-01 error code you mentioned, it really did point to the issue, although maybe not the specific cause. The possible problems with this error code are as follows in the manual:

MRK not operational after 3s:
- MRK defective (Self explanatory, if you replace the MRK and the press works you found the problem.)
- stop signal from SVK3 to MRK (Hence my earlier questions as to which lights were lit on the SVK and the door safety switches.)
- TTK defective (First check the F2 fuse, if not blown then check the cable to the HAll encoder on the main drive motor [Thanks Kevin for your forthright reporting we now can add a new potential problem to look for.]and if niether of those work replace TTK / BLT, if boards are replaced and press works there is the problem.)
- power failure main drive (If all the above does not work to fix the problem the main drive motor is bad.)

As you can see this list of problems to check are heirarchal in their degree of difficulty to repair or replace. The issue with your specific problem is that few people if any, including myself, have ever had one of those cables become disconnected from the motor. After all they are supposed to be screwed in place by the locking ring during installation of the machine.

I am not one to discourage anyone from trying to repair their own equipment, yet I do recommend calling someone qualified to come in once all you can do in a reasonable timeframe has been explored. Any good field technicians goal is to get a customer up and operational as quickly as possible at the least possible cost as this practice is beneficial to both parties. The last thing any manufacturer of any type of equipment wants to see is the failure of one of their customers.

Anytime you have a question about your QMDI please do not hesitate to ask.

 

[Ali Ahmadtabar]

Kevin,

If you need any parts for your press send me and email. I can offer you a better price then what was quoted you already.
Regards,

I was looking for zinc packets.