Trouble with using the pmdx-107 to control spindle with mach 3

[iwinchell9]

I was recently thrown into an uncompleted cnc mill conversion. I do not have that much knowledge of electronics, so bear with me.
The mill I am working on uses the pmdx-126 as the main board and has the pmdx-107 installed as well. The 107 is supposed to control the vfd which is a Danfoss vlt microdrive.
The dip switch settings on the 107 are as follows:
1:off
2:off
3:off
4:off
5:off
6:off
The switch settings for the 126 are as follows:
1:on
2:off
3:off
4:off
5:off
6:off
7:on
8:off
The jumper pin settings on the 126 are as follows:
JP1: multimode
JP2: multimode


Any help is appreciated

[Steve Stallings]

The settings that you listed are not unreasonable, depending on how your machine is wired.

The first stage of getting the PMDX-107 to work is to use the test button to verify that your VFD wiring and parameters are correct. The test button works regardless of other Mach settings, it will even work while Mach is not running so long as the PMDX-126 has power. Once you get the spindle to respond to the test button you can proceed to configure Mach.

The description of how to use the test button is in section 2.6 starting on page 9 of the manual here:

http://www.pmdx.com/Doc/PMDX-107_Manual_12.pdf

[iwinchell9]

I just redid all the connections from the vfd to the pmdx-107, and now the k1 relay on the pmdx-126 turns on when I put the pmdx-107 in test mode. But the spindle still does not turn on

[Steve Stallings]

Most VFDs come from the factory set up to expect commands from the front panel and require changes to parameters to configure them to look at signals on the interface screw terminals.

The Danfoss VFDs are quite complex and the documentation is hard to understand. I suggest that you look at this Danfoss video on YouTube to understand their parameter settings. The significant stuff related to external signals begins as time 4:30 in this video.

https://www.youtube.com/watch?v=YF333rDvmgI

[iwinchell9]

is there a vfd that would be easier to set up with this configuration?
I am using the 126 combined with the 107.