CD102-6+L main pile and auxiliary pile and delivery pile not working

Hi, Expert:
This press is standard mode.
Before this issue happened, the press was running perfectly.
The mail pile feedback hall sensor getting loose and hit by spinning blades and damaged, so we installed new board, now got this issue: main pile & auxiliary pile & delivery pile not working. Also 6 dampening units not working too, sometimes 6 dampening units are working ok for a while.
Sometimes auxiliary pile would work before we touched mail pile button; if the beginning we touched main pile buttons sometimes main pile would work for 2-3 seconds and then stopped/dead.
We saw red led lit up on 4 LTK500 boards. we swapped STK1 and STK2, didn't make a difference.
Thanks!

 

First off damage sensor needs to be replaced. If feeder pile and delivery pile talk to each other !- that is why you can't turn in feeder if delivery pile is at bottom. You should also check that boards that were moved are in right slot and seated correctly. A call to tech will save you time and money.

 

We did replace main pile hall sensor board; delivery pile was at regular position, not at bottom.
Anyone know what is the meaning of LTK500 red led lit up?
Thanks!

 

Can you give me the error messages of the HAK cards in the init test and dyn test?

On the ltk500 there are two red leds, they allow optical control of the ltk500 (a lit led indicates the absence of authorization for the corresponding power component or the presence of a fault either under voltage or overcurrent

 

I will.
Thanks Adil!

 

How to do " initial test" and DYN test"?
Thanks!

 

Which version do you have? Please send a photo of the cp2000 screen to guide you.

 

the press manufacture date:2002.
where is version number in CP2000?

 

It is necessary to ensure that the HAK and NTK cards are placed correctly in the rack; check the NTK 5 power supply card of the HAE rack, check the fuses, the graetz bridges and the supply voltages of the HAE rack (the voltages must be of a tolerance less than 7%).

 

sorry for late reply, we checked all 5 board on HAE rack, didn't find open fuse and bent pins and all boards plugged in perfectly. we swapped NTK5 form a running CD102-6+L (new mode), made no difference, how (where) to check NTK5 card voltages? we want to replace other 4 HAK boards from the running CD102-6+L (new mode), but we saw the number on the board had one digit different, so we didn't swap them.
could you tell us what are the code meanings in initial teat and dyn test?
thanks!

 

I guess that STK1 maybe defective, since it drives main pile at feeder, don't know how to identify if it is defective.
need help for that.
Thanks!

 

Pls send me the pix of pannel
(Lower 2 rack)
Will guide you

 

Hi, Kumar:
i am not at plant now.
but i remembered lower 2 rack what looks like.
Thanks!

 

Hi
As per above drawing
You have
60m1/70m1 stk1
60m2/70 m2 stk2
70 m3 with ltk 50
Now you can swap the stk 1 and stk2
Check

 

i swapped STK1 and STK2 before, made no difference.
do we need reset SAK board, how can i do it?
thanks!

 

No sir.
sak have no relation with this issue
Your error message FFF7 mean that motor's are not compatible with power supply so that why i told you to check power supply in your ntk5 on HAE and test GRM .
Good luck

 

found the connection between GRM5 and NTK5V, will check next week.
so NTK5V should be +5V+0.35V/-0.35V.
thanks!

 

Yes sir this is it . Good job
You must find 33v dc with 0.7% tolerance in grm output if i remember correctly i will show you a picture
If you are out of tolerance you must check the diode bridge .
Good luck

 

I saw NTK5V board on HAE rack with green led on last week, also I swapped NTK5V from a running CD102-6+L (new version), but still got same issue, we put NTK5V board from having pile issue into the running CD102-6+L, it was running no issue. we tried to swap four HAK2 boards from the running CD102_6+L, but we saw one digit different on HAK2 board between them, then we gave up.
if next week we check +33V is out of the tolerance (dropping more than 0.7%), so we should check diode bridge for cold solder joint or diode bridge itself defective (diode reverse leakage), if everything check is ok, what is next step to check. if NTK5V drops more than 7% to 4.65V, if i understand the TTL IC operation theory, it will not work good.
Thanks Adil!

 

although the ntk 5 card LED is on, this does not mean that the card is good. then in the voltage output of the GRM card you must have a voltage of 33vdc with a tolerance of +- 0.7% and not 7%. if all goes well you must check the rack (voltage path, flat cables, dirty plugs, welds in the rack)