No reset

[Stagecraft]

Finished re-assembly of my Shopbot after moving it to my home workshop from it's old location.
Had the electrician over today to do the final connections.
Switched on the power, hit the blue reset button, the VSD unit lit up and I was able to get the spindle running immediately.
I didn't run the XYZ motors at that time as the PC was not yet connected.
Now it's a couple of hours later, I connect the PC, power everything up and the SB control box won't reset.
It has power, with the door open I can see the green LEDs on the board are on but the text LED display at the back keeps scrolling 1 2 3 and repeats.
I've tried powering down, removing the USB connection to the PC and still no joy.
...I'm stumped.

[ken_rychlik]

Does your pc show a connection with the controller?

Do you hear the "clunk" when you push the reset button?

One loose connection anywhere will keep you from running.

Check, check, and check again. E-stops, motor connections, driver connections....ect....

[Stagecraft]

Kenneth, thanks for the reply.
No, the PC doesn't see the control box, no "clunk"
Have checked for loose connections but even if I completely disconnect the PC the box should still be able to reset which it doesn't.
There is power to the box which is why I'm confused.

[bob_s]

When I assembled my system the problem was that the emergency shut off switch was not in the run position. Took me 2 hours to figure out that I needed to twist it to have it pop all the way back out. Sounds like it may be as simple as that, or in that circuit.
give it a try
Bob

[Stagecraft]

Thanks Bob, tried that already but no luck.
As stated, I was able to at least power up the spindle earlier today, now I can't even do that.
Heading back out to the workshop to do some more wire jiggling. - Boyd

[Gary Campbell]

Boyd...
Have you installed the USB drivers AND the firmware?

[Stagecraft]

Okay back to weirdsville...
I went back out to the shop, tried powering up with no results.
I wiggled a few wires, hit reset and Bingo...power.
Having said that, I'm still not convinced this is a loose connection issue.
I powered down, connected the PC, the Bot did reset but the PC couldn't see it.
I switched the USB cable for another and everything powered up and I was happily jogging the gantry around the table with the keyboard.
I carefully ran the gantry to the e-stops to confirm that they were working properly, and they were.
Moments later I got the message saying the PC had lost connection etc.
Now I can't reset the Bot with or without the PC connected and there is still power availale to the control box.
I've tried complete power disconnects and reboots and still can't get the machine to reset.
This Bot has been extremely reliable, operating for years on this PC which is what I don't get...
I'm still wondering about those LEDs flashing 1-2-3 on the back of the board.

[ken_rychlik]

It could be a weak contactor not pulling in.

I would be checking voltage with a meter to see if it is marginal.

The led will do that flashing with the reset not pushed or not working for whatever reason.

When it comes back on try a wiggle test. You may have a loose wire somewhere.

[gene]

It sounds like a loose wire on the contactor. The clunk is the contactor closing. I would check the wires in that area

[Stagecraft]

At the risk of exposing myself for the electrical moron that I really am...what exactly do you mean by contactor?