Worked on Star Robot on MP24. Display was dead on power up. Disconnected all I/O connectors on the main power board with the power off, powered up controller, and the pendant came back to life with errors. Started plugging in connectors one at a time with the power on and CNA made the pendant lose power. Looking at the prints, connector CNA has limit switches that are around the EOAT, on inspection of this area I found that a cable labeled LS4 that had bare wires that had got together. I insulated the wires from each other and everything powered up no problem. I was able to move the robot around and send it home. So evidently a short with the 24VDC will not allow the system to power up.
Changed over the Z axis encoder on MP5 to a BEI encoder. On power up the robot could not find itself, so I swapped the A+ and A- with the B+ and B- channels. On power up this time, the robot referenced fine and homed itself. There is a box on my desk with (1) new BEI encoder, connectors, pins and sockets, and a print. Since we are out of the old encoder again, we should start changing over to the new encoder on a failure. We only have (1) new encoder right now but more are on the way.
I replaced, dated the PCB backup battery in MP25. It has an NC9000G controller and only has (1) back up battery. They are supposed to be good for 5yrs.
I replaced, dated the PCB backup batteries in MP22. It has (2) batteries like MP24, (1) on the back panel and (1) under a cover on the back side of the main cabinet door.
Called Milacron to track the pump for MP5. They said it didn’t go out till today and wouldn’t be here until Monday, the 28th. I feel goobed.
I believe I heard that new GO switches are here and are in MRO, I think several have been robbed.
That is all I have for today, have a very Merry Christmas and we will see you next week.
Mark
Technical Specialist
Oreck Manufacturing Company
mmckee@oreck.com
PH 931.646.7856
CELL 931.644.5289
FAX 931.646.7851
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