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Author Topic: Making The Film Motion Detector Compatible To The Maxi8-X Xetron Automation Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 01-13-2004 09:28 PM                     Is there an easy way that I don't know of to make the Xetron Maxi-8X compatible to the film motion detector in the FM-35? The Maxi-8X wants terminal 3 of TB-1 ungrounded to be happy. Grounding terminal 3 of TB-1 via the old Xetron split film/cue detector simulates tail-out of the projector. Configuring the FM-35 for this type of setup is very easy for the film presence detector. However, the film motion detector can't be done this way because the contacts will apply a ground to terminal 3 of TB-1 which will inhibit pre-roll of the motor when the start button is depressed. If it were wired opposite, the projector will shut down as soon as film motion is detected. I could make it work with a couple of relays, but I don't want to do that unless I have to. Any simple ideas anyone?  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-13-2004 10:34 PM                     Add a dip relay with one side connected to the + rail the low side to the motion sense then connect the xetron automation across a normally closed contact  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 01-14-2004 01:53 PM                     Gordon, is this what you have in mind? Unless I missed something, it looks like it will work on paper. Edit: Old schematic deleted. Please see the new one and its explanation below. [ 01-15-2004, 10:24 PM: Message edited by: Paul G. Thompson ]  |  IP: Logged Kenneth Wuepper Phenomenal Film Handler Posts: 1026 From: Saginaw, MI, USA Registered: Feb 2002 posted 01-14-2004 08:14 PM                     Paul, Check your wiring of the motion sensor contacts. I don't think you want the DIP relay coil to return to the automation as it is drawn here. You will want the DIP relay contacts to close and make the automation see ground as it does with the film present sensor. KEN  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-15-2004 07:06 PM                     In princaple it should work  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 01-15-2004 10:21 PM                     OK - Here is what I am going to try tomorrow. This should solve the problem. Please eyeball it and see what you think. The capacitor C-1 will be a heavy electrolytic so it has enough LC time to discharge so the automation will see the film motion loss to trip the automation off line. Unless I screwed up, I am confident this will work.  |  IP: Logged Ken Layton Phenomenal Film Handler Posts: 1452 From: Olympia, Wash. USA Registered: Sep 1999 posted 01-16-2004 12:15 AM                     Paul: Check out the document "Interfacing the FM-35 to Kelmar/Christie automations" on the Film-Tech main page under Public Addions 9-6-03. I think more info is also on Component's website.  |  IP: Logged

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