Centroid Community CNC Support Forum

Hi CNCSNW,
I make all voltage test on the VFD terminal and you get right. The voltage between the FWD and DCM as for the DI3 (enable command) goes from 24 VDC to 0 when the PLC request. As the AI1 and ACM go to 2.5 V .

When I run MANUALLY, it's from VCP, but I notice that I have to press green spindle start then M4 button or M3 button to start spindle. It's like the VFD need to have enable first and direction after, in this sequence, to run.

So, about MDI command, does with M3, the enable signal come after the direction signal ? But the M4, the enable signal come first ? This theory confirm that since the M4 command and spindle run, I'm able to switch to M3 and M4 seemlessly .

Now, If the problem is with the VFD, I'm a little bit confuse. How do I have to configure/parameter ?

thanks again, we progress !

Hi,

I found the solution !!

I must wired (2 wire mode 2) and parameter (3.02) the Durapulse GS4 in this way. The OUT7 is wired on the FWD therminal to run/stop and the OUT8 n.o. contact must be on the REV terminal of the VFD. In this way, when M3, OUT8 open and the input REV when open = FWD and when M4, OUT8 closed and when closed = REV.

DI1 is used for reset only and DI3, now configurated NO FUNCTION.

All run as it should !!

Thanks again for all the knowledge and inspiration.