I emailed Bruce this question also but I know he's a very busy man so I figured I'd post here and on the brain forum also just incase I'm not the only one with this question...

I'm having issues with getting my drivers to turn on and off with the Master Enable. My drivers require 0v for them to work. Applying any voltage disables them and they power off. Right now I have 5v when the e-stop is engaged and about 1.8v when Master Enable is activated. Either voltage leaves the drivers powered down and only by disconnecting one of the leads on the driver can I get them to power up. Is there any way of getting the 1.8v down to 0v by changing something in the code of the control panel or is this better resolved by adding a relay to the enable line?

A few specs on what I have connected:

Shizuoka ST-N mill
Keling Technology Drivers Model: MD2278-g (they have them listed on their site as
KL-11078 Microstepping Driver)
Keling Technology Steppers Model: KL42H2150-42-8A

Windows XP running the control panel
CNC Brain
M1 pin 1 => Ena-(ENA) on x, y, & z drivers
XA pin 7 => Ena+(+5v) on x driver
YA pin 7 => Ena+(+5v) on y driver
ZA pin 7 => Ena+(+5v) on z driver

I'm most likely missing something really simple. Right now though, I'm still very green and none of this is simple.