digital current control not working - Azteeg X5 GT

Hi everybody,

Here’s my problem.

I bought a Azteeg X5 GT and SD6128 drivers that support digital current control.

Everything works fine with the board except one thing: Motors will just do a really faint humming noise and dont’t move except for the Z when the bed goes down because gravity helps it.

The problem is obvious. not enough power.

as I told everything else works fine so the config file is ok and the firmware is flashed

Here’s all that I did so far:

  • reformated the SD
  • Tried with the Panucatt devices config file
  • tried the two latest firmware
  • tried different values in the config file for the motors current and also the multuplier for the digipot chips
  • made sure the current control module line is set to true, the multiplier is 51.0 for the SD6128, the current is set for each motor.

Whatever I try the voltage will stay at 0 when I measure the vref pin on the driver.

I made sure the jumpers on the drivers are open to use the external vref

I measured on the trimpot on the driver and I have a normal reading so I know my multimeter is ok.

I wrote to Panucatt devices and as expected got no answer at all…

I am little lost now!

Anything I might have missed?

Thank’s

Imported from wikidot