Quad QSA30 / Samsung CP30 SMEMA function - Page 1
Forum section: electronics / general

author: jmelson
author_rank: Super Contributor
timestamp: December 19, 2023, 12:10:02 am
content: I have a Quad QSA30A P&P machine, built by Samsung on the base of their CP30 model. It is very similar to the CP30, and runs the same software, except that it has Quad electronic feeders and Quad alignment cameras. But, I have never gotten the SMEMA connectors to function properly. I can get the machine to assemble 2 boards, but then it stalls when the 2nd board is completed, and you have to hit reset twice to release the second board. Somehow, it doesn't accept the fact that the board has been picked up from the output side of the conveyor. I have added a manual switch to the SMEMA output connector, and can see that the switch is detected in the I/O display, but it makes no difference.I'd be fine with running without the SMEMA interface, and just have it continue when the output optical sensor shows the board has been picked up.Has anybody ever worked out what settings need to be made in the config files?Thanks,Jon

author: Mangozac
author_rank: Frequent Contributor
timestamp: December 21, 2023, 11:12:24 pm
content: I recall in our MPM stencil printer (and probably the Yamaha placers too) settings for different SMEMA standards/modes. Does the Quad have anything like that in the settings?

author: jmelson
author_rank: Super Contributor
timestamp: December 22, 2023, 01:38:41 am
content: Hmmm, I don't think so. There is a .ini file that just has the line: Smema=1I will try different settings there, now that I have a manual switch connected to the SMEMA connector.Jon

author: jmelson
author_rank: Super Contributor
timestamp: November 15, 2024, 06:01:31 pm
content: Well, it is pretty crazy, but I solved it! There was a cryptic reference in the Q-Tips file (Internal service engineer bulletin) that the labels on the SMEMA connectors were confusing. I tried connecting my manual switch to the INPUT connector, instead of OUTPUT. Now, it works, the board stops at the conveyor output sensor and stopper, and when you trip the switch it drops the stopper and starts the conveyor to send the board out.Jon

author: loki42
author_rank: Frequent Contributor
timestamp: November 17, 2024, 01:44:44 pm
content: I had a similar weird one with my cyberoptics gear, that some of my machines used relay smema and some had opto couplers. The relays aren't sensitive to pin polarity but the optos are.

author: jmelson
author_rank: Super Contributor
timestamp: June 25, 2025, 03:00:11 pm
content: So, I had an air hose in the head of the machine burst. I fixed the hose, but the machine would not start running a job. First, it had nozzle check errors while picking up nozzles, then I manually loaded the nozzles and it got motor alarm Z. I was very mystified by these errors, but finally figured it out. When it starts a job, it measures the length of the Z rod with the alignment camera. Well, I watched it, and it would drop the nozzle a bit, and then raise it all the way to the upper mechanical limit. I checked the alignment cameras, and they had picked up dust when the hose blew, so they couldn't correctly read when the nozzle cleared the beam. I had to take one camera off the machine for internal cleaning, the other one was able to be cleaned on the machine.Jon

author: jmelson
author_rank: Super Contributor
timestamp: June 27, 2025, 02:42:02 pm
content: Surprising end result! So, I got the cameras just barely clean enough to run a job on the machine. At the end of the run, I went back into the diagnostic to see how the cameras looked, and to my amazement, they were now showing the blockage of light had gone down to about HALF! I was worried at first that the cameras might start getting worse again, but I sure didn't expect them to get cleaner all by themselves. Possibly this is a warm-up effect.Jon