JAMIE,
I assume that you can go into the controler / Camtronics box and check some things out. If not, say so ,and do not fool with the outputs / cable running to the steppers unless you absolutely know what you are doing. So electricaly
if not capable keep your hands out of the box! That said:
1. Completely trace out each and every wire to make sure whatever that previous person wired up was done correctly.
- here is a rough description of the controller electrical flow : 120v ac in to a transformer ( or 2 transformers) , then to bridge, then to capacitor
- from capacitor to individual fuses which will feed the individual Geico 201 drives
( Check that all fuses are ok and of the proper rating ( the fuse may be blown on the drive which the light dosen't come on)
2.Go to the geico site anad download info on the g201's - you shoiuld have a capacitor across power to ground on each one. You should have power at terminal #2, check that there is a current limitiing resistor across the current set terminals and that it is good. You need +5v to the +5v terminal. Its understood that phase wiring is done correctly.
Is there a switch going to the disable ? maybe turned off?
Thats some general things.
If power, grounding, +5v, not disabled, is ok you may have a blown drive.
Call Geico, as they can tell you exactly what few ohm measurements to check to see if the drive is blown.
Sorry, but I just don't remember that test anymore. you will need to remove it.
3.With power off check each steppers wiring from drive to motor. Check that none of the motors are shorted.
Knowing that everything is wired correctly is the first step. Who knows what that guy did!
If the drive is bad I would replace it with like kind, there is an upgraded G201( think G202?) but the g201 is $20 to
$40 cheaper and may be different in size. While you at this , you may want to consider puttinig in another drive,
this way you could have xyza axis or a can always become a spare should you blow one.
Hope this helps,
RICH
PS: I didn't get into mach settings as I realy think you should first confirm wiring.