Quote:
Originally Posted by Al Skierkiewicz
Invictus,
Before we discuss the original problem, the frame short concerns me. Often a single short doesn't produce the results you are describing. It sounds like you could have another frame short on the robot. Considering the amount of damage you have experienced, there is a good chance the Spike took a hit as well.
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The short circuit went from the
+12v-frame to the GND in a PWM wire (there were sparks) so it totally fried the DSC we had on there (we can see and smell a burnt-out IC). We did check the GND-to-frame and the +12v-to-frame
after we found the short and fixed it, and there's no continuity (this made us cheer). Is there another short that
won't present itself in those tests? We also thought the spike probably took damage so we switched out the
possibly-burnt-out relay with a working one.
Quote:
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The LED Mark is asking about is the Relay Tally lights on the DSC. When the DSC is issuing a command to a relay, there is an indicator on the DSC that lights for the relay(s). If one of these is not coming on when you think it should, the relay will never respond.
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Right, this is my
biggest concern. I mentioned this up in the original post:
Quote:
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...tried manually starting the relay, but we don't even get the green relay light on the sidecar
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And after changing practically
everything in between the DSC and the control station including the DSC itself, it still doesn't give that light, but Test mode says it should be running and reads the pressure switch just fine.
