| | | | I am considering of Philips FCM for the next production. | | | | But I have heard a rumour saying this machine is not capable for checking the lead polarity due to the laser scan system. | | | | i.e. SOT might be populated in wrong direction. | | | | Can somebody advise me if this is true? | | | Adrian, | | | We have an FCM and I would not trade it for anything else! | | | Now, about your question, the FCM is no different than any other | | | high speed machine in that it follows a program that picks the part | | | and puts it in the right rotation, and places it. If you tell it | | | to place a SOT23 at 180, it will ALWAYS place that part in that position | | | at 180. The only exception would be if the part was in the reel backwards. | | | I have never seen one backward in the reel and if I did I would be yelling | | | at my component vendor loudly! No, the FCM does not check polarity, | | | you program it to pick in a rotation and place in a rotation, thats it! | | | It is a great machine, ours just runs and runs with little to no problems. | | | We are currently putting out a board every 10.5 seconds with it (about 80-100 placements.) | | | I hope this answers your question. Basically it will place the part in the | | | rotation you tell it to...everytime. | | | Brad Kendall | | | Hella Electronics Corp. | | Adrian, | | Take a look at FUJI's QP-132 machine. It is very similer, in concept, to the FCM with the exception of a full grey scale vision system. This will eleiminate the Polarity issue if it were to come up. I have seen SOT type components packaged 180deg. out. If you have any questions feel free to contact me at any time. | | Timm | Adrian, | Be aware that the Fuji machine is also 4 times the size of the FCM. If you have that kind of room on your production | floor that you can spare because you are worried about the polarity of a part out of a real, more power to you. Overall | the FCM has the highest throughput per square foot of floor space in the industry. They also have many new features on the | FCM Base 2 that eliminate the changeover fears people have. With universal carrier sets, feeder trollies, etc. you can change | over a 96000 placements/hour (60,000 real time)machine in 5-15 minutes! You can now get wide feeder bars as well, so you are no longer | limited to SOIC16 or less on the FCM. Look at the service, support, and spare parts too, Philips is outstanding in this area! | Oh, as far as a SOT part being backward in a reel...been assembling boards 12 years and putting out a board every 10 seconds | now, have yet to see one backward. Good luck. | Brad Kendall | Manufacturing Engineer | Hella Electronics Corp. Adrian and Brad, For your mutual benifit, the QP-132 machine is only 8.5' longer than the FCM. 18.7' versus 10.2'. The changeover time is very minimal due to the PFU (Power Feeder Unit) They roll out and the new PFU rolls in with new feeders. Feeder replenishment can be accomplished on the fly by splicing onto the old tape. As far as speed... The FCM is specified at 96,000 CPH with real time rates of 60,000 as per Brad with laser or mechanical centering. Tha QP-132 is specified at 133,000 and real time rates of 96,000 with full vision processing. If you require any further information feel free to contact me. Timm
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