Overview…
Can anyone give us some insights into the Jag Limit Switch input circuits?
CAN we drive two Jag Limit Switch inputs, with a single SPST switch?
Problem description:
We’re using a pair of motors on one gearbox for a payload device, and need to add a limit switch to the PAIR of Jags driving them. We definitely do NOT wish to use two separate limit switches for each direction. (No space, plus failure mode concerns…)
In essence, we wish to design a proper “Ganged Limit Switch” for a pair of Jags, to turn them BOTH off at the same time local to the Jags from ONE (preferably SPST) limit switch. BUT we don’t know how the Jags’ limit switch circuits are implemented internally, and whether we can cross connect them without damage.
Can anyone give us some insight as to how the Jag’s limit switch circuit is implemented internally? (We don’t wish to risk Jag damage with limit switch input ganging experiments…)
IOW… What’s the right way to approach this? Can we use diode blocks on whichever are their “hot pins”, and use a single SPST swtich to drive both jags, or will we need to electrically isolate them from each other with (for example) DPST limit switches, a DPST relay contact set, opto isolators, etc? (I speak electronics… Feel free to talk about circuits and diagrams…)
Thanks.
- Keith
