[Dem-eng]

Hi all,
Am having trouble with connecting a servo driver,
The driver has step, dir and enable + & -
My controller has step plus and step minus
Dir plus and dir minus, enable on,

I have all conected up, its enabled and locked up, but wont move,
Control signals seem to reach it, because as i move directions i see the 4.5 volts drop and rise on the pin outs

Any help appreciated

[dazp1976]

Could do with an image of your controller to see the connections or tell us which one it is so we can have a look at the pdf manual.

Normally you have 5V (or 24V)+ power connection output going from controller going to all 3 + connections on the driver in parallel.
So this one feed goes to PUL+, DIR+ & ENBL+, on ALL drives

Then the - (negative) connections go from your controller outputs.
So STEP- output to PUL-.
DIR- output to DIR-
Then ENABLE- output goes to ENBL- on ALL drives

For Example: OUT1 to ENBL- on ALL drives
OUT2 to X, PUL-
OUT3 to X, DIR-
5V+ out to ALL drives, PUL+, DIR+ & ENBL+.
This is known as active low.

It could be that your board has individual optocoupler type layout.
In these cases, usually the + connections get daisy chained to the + power feed.