HDC2472 DONT TURN ON

Hi guys,

My name is Eder and im from Brazil. I have 2 old brushed controllers AX series and they work fine. I have brought 4 new HDC2472 last week but I can’t turn it on. I did all connections as they say in manual and also looking the old ones because it’s too similar, but nothing happened. I’m using two car batteries in series summing a 24 volts total. When I turn the control switch (yellow wire) to positive or negative no one leds turn on.

Could someone realize what is happening?

The HDC2472 requires at least 18V applied at the power control line. From there, any voltage 12V to 72V is fine on the big red wires.

Since you are using 24V, it should be sufficient for powering on the controller. Even if you put 24V on the big red wires, it should be enough to turn on the controller.

Hi Griffing,


thats why i dont understand... Here some pictures .. as you can see i have 25 volts at yellow wire and the power led dont turn on... this happened with 3 of them.. i didn't try the fourth one becouse im afraid im doing something wrong and damaging the modules...

If you are wired in via the big red wires, is the power control yellow wire floating or shorted directly to ground.

Try this.

Disconnect everything. Make sure that there is nothing connected on the yellow power control wire or thin black ground wire. Just connect the bid red wires and black wires directly to the 24V battery. The power should come on.

Frist of all i would like to thank you for your attention. I tryed to do what you said, but nothing happened. As you can see i disconected the yellow and black wires and nothing happened. Im start to think they sent me 4 damaged controllers.. Im gettig hopeless. Any sugestion will be appreciated.

Does that meter say 25V or 2.5V?

Its 25.8 volts ... when i put the big red wires on the battery i can see the "sparks" .. the capacitors are charging... bu the leds still off...

So all 4 are exhibiting the same behavior. If the 25V is being applied even with the power lights off, are you by any chance able to connect it to the PC via a usb?

I tryed to connect via usb but the program show "NO COM PORT FOUND" at the bottom of the page and the usb led remain off. Do you think it is possible they send 4 damaged controllers?

It would certainly be unusual for us to send 4 bad controllers since we test and validate these controllers prior to shipping out.

I can't see what is on the green and white wires. They aren't touching anything are they?

Also, try one more thing. Connect the gnd and yellow wire directly to the battery 24V. See if the power comes on.

Worst case scenario, these would have to be sent back on an RMA.