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Recent content by trai

  1. trai

    LED DRIVER FAILING

    The LED stopped working. We asked onsite electricians to swap the working fixture driver with the bad one and LED were functioning. Based on this we sent them replacement drivers and now all of the fixtures are working. Bu again we got a complaint that 3 more fixture stopped functioning. So I'm...
  2. trai

    LED DRIVER FAILING

    Thanks itsmoked for your input. I totally understand what you are saying but it will be very hard for me to determine this.The circuit has no heavy fan or motor attached to it. So i ruled out that option before. Till now, none of the replaced driver has failed. But if this happens for sure we...
  3. trai

    LED DRIVER FAILING

    EVERY 2-3 WEEKS, 3-4 BALLAST FAILS. Since early June 13 ballasts have failed.
  4. trai

    LED DRIVER FAILING

    Ok IRstuff. Thanks for clarification. I guess i will wait for the ballast manufacturer to provide their test result for failure of ballast.
  5. trai

    LED DRIVER FAILING

    On the original order customer requested dimming option But they are not using any dimming onsite. They have just capped off the dimming wires. Could that be an issue for driver failure?
  6. trai

    LED DRIVER FAILING

    Well normally we do use Meanwell, but for this particular design fixture we had to go with High perfection (Magtech) Ballast. Stabilized Junction Temp for LED is 85°C. I'm not 100% sure about this but may be you can guide better in this. On the original order customer requested dimming...
  7. trai

    LED DRIVER FAILING

    How do you know the drivers "failed"? We sent them replacement driver and it worked with the existing LED. Have you attached a known good driver to the LED strip and does it work? Yes we did and it worked. Have you opened the drivers? No, we didn't open the driver. We sent it back to...
  8. trai

    LED DRIVER FAILING

    Quite a possibility. I totally understand. They had some other fixture in same circuit which were down light LED (By others)which are working fine due to which i ruled out the possibility of issue with site. Can occupancy sensor cause any issues with driver? Response from Project Engineer...
  9. trai

    LED DRIVER FAILING

    I have already asked supplier for trouble shooting. I'm waiting to for their response. This is the first time i tried this ballast. It passed the bench test and they had been functioning perfectly since March. Since Mid June they started failing. Yes it is a single site that has failures...
  10. trai

    LED DRIVER FAILING

    Hi, I work at a lighting company as a design engineer and recently we had failures of LED drivers onsite. Almost 15 LED drivers failed in 2 months but not all at the same time. At first 5 failed then in 10day another 3 failed and so on. We suspect that there are more drivers to follow. The...
  11. trai

    Mazak Laser STX-48 Champion

    We are based in Canada. The Mazak tech had a look at it and has referred us to Panasonic. The resonator on our machine is a DC Panasonic. By beam i mean that there is no beam what so ever not even the internal resonator.
  12. trai

    Mazak Laser STX-48 Champion

    We got a tech from MAZAK working on the machine and after changing the rear mirror, output coupler and bend mirror we are not getting even a beam output. Could it be a bad resonator or what. Before the tech replaced mirror and all, we were getting beam output. The only problem was the output...
  13. trai

    Mazak Laser STX-48 Champion

    I will keep updating you guys. Thanks again
  14. trai

    Mazak Laser STX-48 Champion

    Ok Then problem seems to be with the servicing. Thanks a lot for your help in this matter
  15. trai

    Mazak Laser STX-48 Champion

    Spot is on the outside face of the mirror. We are arranging to get the service done but just wanted to knew if bad mixture could be a cause of spot on the mirror
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