the nuts on those connectors which are below the boards in this box.
Now in the next step of wiring this up I have a pair of 40 amp SSR's,
with 5.11+ on both + terminals of the SSR's, and am using
hm2_5i25.0.7i76.0.0.outputs 15 and 14 with the idea that turning them on
will ground the -terminals, enabling the SSR's in sequence, when the
first one is enabled, power is applied to the stack of toroids thru a 50
ohm 200 watt resistor the start chargeing the filter caps, 3 second
later an identical signal is sent to hm2_5i25.0.7i76.0.0.output14 which
bypasses the 50 ohm resistor, enabling the spindle psu at full power.
I can see, with a halmeter that the signal is sent to those output pins.
But they aren't turning on to sink the - pins of the SSR's. They
regardless of the halmeter state, stubbornly sitting at 4.66+ which
would be about what I'd expect to see when I measure to ground/common
with a 10 megohm input DVM from the - terminals of the SSR controls. Not
enough current flowing thru the meter to tickle the SSR's of course. I
am wired to the last and next to last at the upper end of TB5 which the
docs say is output15 and output14. Field power on the orange connector
is 12.2 volts positive on pin 1, and negatives are wired common between
pin 8 of the orange connector and pin 24 of the 4 pin header to its
left.
Another common issue can be that you are not using the field power common for
the load common (note that the field I/O is galvanically isolated from logic
power so the load power common must connect to the field power (orange
connector) common
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
_______________________________________________
Emc-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-developers
