SoftwareJanitor
Member
Is this the card, or what's driving the card? It's just a permissive being sent from one building to another.
Is this the card, or what's driving the card? It's just a permissive being sent from one building to another.
I'm betting (more than pocket change - but less than the rent) that he's dealing with a TRIAC module - and "leakage current" ...
[It's just a permissive being sent from one building to another. ]
That about says it all. Ground is not always ground. different potential between the 2 buildings.
This just shows why proper grounding (Bonding) in electrical systems is important.
Run a grounding conductor between the 2 buildings
well, the OP didn't tell us whether the output was OFF or ON when he got that 87V reading - so the "ground" issue might certainly be correct ...
and ...
he didn't tell us whether the "input" on the other end was regarding the 87V reading as an ON or an OFF signal ...
and ...
he didn't tell us which end of the wire the 87V reading was taken from (output module end - or input module end) ...
but ...
I've just got a "hunch" that it's leakage current - and since I'm not betting much, I'll stand ...
100 yards?from one building to another.