Need 2nd opinion on Wiring diagram.. proximity - isolation - lpt.

[dazp1976]

Gets my vote, in principle at least. I'd be interested in critiquing component value selection (just look/work around the opto CTR)

Hopefully this is relevent.

A quick read of 300eth manual again.
The 5v is a pass through from my seperate psu which is supplying it.

Into the controller from my psu (using a 5v 3A) to power it's logics and passing through to pin 26 for powering additional I/O.
States :Minimum for controller = 500ma. Higher needed for adding extra I/O.
All output pins TTL max 20ma. Inputs TTL 0/5v levels.

Took the 5v in diagram from Pin 26 on port 5 for convenience due to it being right next to opto board in the box layout.
Psu itself is further away.

(Will look at opto model number when it turns up)


I actually already have a UCBB under power from Pin26 on port 1+2 already for axis controls.......
........(16 outputs - 18 inputs - high speed chips - 7HC types or something. Can't read them atm).
So it must have the guts in it to run a bunch of diodes!.
The diodes are actually just to show which port the fault is on. They only light if opto is active.