[CS900]

Ok, so I just got my brand new G540 hooked up tonight. I've loaded the XML file seen here for Mach3, and I've jumpered connectors 10 and 12 temporarily until I get my e-stop switch installed. I've double checked the ports and pins setting, and I've "tuned" the motors to the settings I had when I was running the Xylotex board. I've also disabled the home inputs for now. I'm not getting any fault light, but my steppers won't move. They lock up once Mach3 is started, and Mach3 indicated that the motors should be jogging, but no movement is actually happening. I believe my motors are wired correctly (but they may not be), and I have the current limiting resistors installed.

So any ideas? I'm a complete computer noob, so use small words (nuts)

my set-up:
Taig CNC
Mach3
keling KL-600-48 48V/12.5A PS
Xylotex 269oz 4 wire motors

please help, I need to get my baby back up and making chips.

[CoAMarcus]

It sounds like your motors are mis-wired. Check the Xylotex website for a wiring diagram of these motors, because it sounds like one of your phases is mixed up. Also, what is the size of your current set resistor?

Marcus

[CS900]

hmm...that could be my problem. I believe I might have:
stepper... board
A ... /A
/A ... A
B ... /B
/B ... B

the resistors are 2.7K, 1/4W (or maybe 1/2W, I don't remeber.)

[CS900]

nope, just checked my wiring, I'm fairly sure I have it right

per this info, and assuming A# is the same as /A, I should have it correct.

[CoAMarcus]

Do you have any LEDs on the G540 lit? Try removing the cover of the G540 and flipping the switch located on the bottom of the drive to disable the charge pump. Also, is it all of the axes that are doing this, or just one in particular?

Marcus

[CS900]

ok, here we go: from the website above:

The steppers are wired as follows:
RED-B# BLUE-B BLACK-A# GREEN-A

white is obviously the blue wire from the stepper. all the other wires are the same color.


and the resistor:


I have the green power light illuminated, and what looks like some kind of red back lighting coming through the trim cutout holes.

edit* could I just disable pin 16 in mach3 to disable the charge pump?

[CS900]

you mean the switch in between the Z and A outputs connectors?

and it's all the axis, not just one.

[jalessi]

The resistor in the picture is not 2.7k
Red Violet Red is 2.7K

Jeff...

[CoAMarcus]

If you were to disable it in Mach3 the G540 would still require it. If you take the cover off and flip the switch it disable it in the hardware itself so you can be assured that the charge pump is not causing the problem. The switch is located directly underneath the DB25 on the bottom side of the G540 motherboard.

It looks like the motor is hooked up correctly and the current set resistor is the correct size for those motors.

Marcus

[CoAMarcus]

The resistor in the picture is not 2.7k
Red Violet Red is 2.7K

Jeff...

The motors are 2.8A motors and that is a 2.8K resistor. I'm going to chock the 2.7 thing up as a typo on his part.

Marcus

[CS900]

The resistor in the picture is not 2.7k
Red Violet Red is 2.7K

Jeff...

hmm..do I have 28ohm resistors installed?? i'm fairly sure they are 2.8K

yes, I'm not very electronically inclined.

[CS900]

negative on flipping the switch, it does the same exact thing.

[jalessi]

It looks like a 2.8K 1% if its Red Silver Black Brown Brown it should be.

A VOM would give you peace of mind.

I did not mean to step on any toes by the way, sorry if it seemed that way.

Jeff...

[jalessi]

Can you post a screen shot of your ports and pins motor outputs?

[CS900]

no problem, I didn't take it personally.

Just to end the debate on the resitors, I just measured them, they are all 2.79K. close enough.

sure, let me go grab them...

[CS900]

lets try this:

and I've tried various combinations of switching the dir and step functions with no luck

I had to put the e-stop on "emulated" in order to get the e-stop to stop triggering, if that makes any difference.

[CoAMarcus]

I did not mean to step on any toes by the way, sorry if it seemed that way.

Jeff...

I definitely didn't take it that way, but you had me real worried I was reading the resistor wrong and was in for a seriously embarrassing moment.

CS900, is there any way you can give me a call tomorrow during business hours? We can run some tests over the phone to see if there is something wrong with the G540 and try to figure out what is causing this irritating problem. Our number is (714) 832-8874 and we are at the office from 8AM to 5PM Pacific time.

Marcus

[jalessi]

Can you post a print screen of your ports pins "input signals"

[CS900]

best I can do:

all the other inputs are disabled.

CoAMarcus, I don't think I'll have time tomorrow. between full time school and full time work, I don't have a lot of time to do anything during regular business hours. I might be able to on Thursday.

[jalessi]

Have you tried it with the Estop active low NOT checked and Estop emulation also NOT checked?