New purchase (PMDX126) and No Power! Help

[usafsoc]

Hello all!

I just purchased a brand new PMDX 126. I reviewed the manual and all the other diagrams on the intrawebs.

Simply put, steps 2.0 - 2.3 in the manual provide the information needed to test the board and verify the led's light up.

I verified it has power from my 120 VAC power supply, installed + and - wires to the two pin connector next to the voltage selector switch and I get nothing. No power and no LEDS.

Few things that I have done. Used a multimeter to verify my power supply was working. Yes it is. I had it connected to a TinyG board moments before which powered up and worked fine. I also checked the wires (about a dozen times) to verify there was not a loose connection. I even used a second power supply that I have without any luck. I also verified the E-Stop jumper and the setting were installed correctly per the instructions. Even though the manual states that these should have already been set prior to arrival.

As I sit here scratching my head and before sending it back per the warranty....I was hoping that my fellow CNC compadres would have something in mind that I can check/try before hand.

Thanks in advance for your advise/input.

Nick

[Steve Stallings]

You mention connecting the + and - leads of your power supply to
the PMDX-126. This is confusing because the PMDX-126 does not
use DC power, it is connected directly to mains power of 120 VAC
or 240 VAC.

Can you confirm that your 120 VAC power is coming into the small J8
connector directly beside the voltage selector switch, and not the large
J9 connector which is for the big relay contacts?

Also try sliding the voltage select switch back and forth just in case
it was not fully seated.

Lastly check the voltage at the screw terminals of J8 to see if you measure
120 VAC.

If none of this helps, then we need to do a warranty repair and you should
send the board back to us with your description of the problem, your
contact email and/or phone, and your return shipping address on a printout
inside the box with the PMDX-126.