Film-Tech Forum ARCHIVE: Problems with motor inverter when striking the lamp

This is topic Problems with motor inverter when striking the lamp in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Marin Zorica (Member # 1716) on 05-23-2009, 12:31 PM:

I have one problem, sometimes when striking the lamp (Zenith X2000H lamphouse) inverter which drive motor (Siemens micromaster) put's fault state out, and it's says over current in motor. Normally no overcurrent just some spike when starting lamp.....I was wondered what could help to this.....I don't have proper earthing here, just GND connected to neutral of mains. I was thinking maybe to add some caps in ignitor, or putting filter in lamphouse main supply??

System is single phase, so motor inverter and ignitor are on same phase.

Posted by John Hawkinson (Member # 1135) on 05-23-2009, 02:52 PM:

inductors, toroids?

--jhawk

Posted by Gordon McLeod (Member # 33) on 05-24-2009, 08:26 AM:

Proper grounding is the number one thing to do then adding some inductors to the ignitor mains and bypass caps

Posted by Marin Zorica (Member # 1716) on 05-24-2009, 12:38 PM:

quote: Gordon McLeod
Proper grounding is the number one thing to do then adding some inductors to the ignitor mains and bypass caps

You think between mains and earth?? I was tought of adding RSO filter to lamphouse mains, filter has inductor and bypass cap's inside.