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Topic: Strong SPA-7 automation cue/start problem
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Paul G. Thompson
The Weenie Man
![](http://www.film-tech.com/cgi-bin/paulpics.cgi)
Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 08-19-2002 08:34 PM
I am only guessing here, but I will side with Richard on this one. I would suspect an equipment grounding problem if it just decides to start up by itself for absolutely no reason at all, especially on a very dry day when static electricity is high.By the way, are yours wired for interlocking, and if so, is it going nuts when an event happens with another machine even though you are not interlocked? How about slight power bumps when a HVAC or some other heavy current draw devices come on? Good luck. Problems like yours can be a real hair-puller trying to find out what is causing it. Paul
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Pat Moore
Master Film Handler
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Posts: 363
Registered: Mar 2000
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posted 08-20-2002 07:22 PM
Hi -- also take a look at the various interconnect cables that mate the pieces of the SPA-7 together, including the failsafe connecting cable. Be sure they are not coupled to or closely in parallel with any DC or AC Power cables or wires. A neat installation might have included tie-wrapping these cables to leads that induce noise into the system.Are there other systems connected to this one? If so, disconnect the interlock wiring and see if that helps the problem. The start and cue input problem would appear to be related -- the problem is determing what is occurring that's initiating such false inputs. If it was cue only, I'd look at the failsafe, but since it's both I'd have to look somewhere else initially. Pat
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