[kostas1]

Hi, I have some issues on connecting the C11 BOB to VFD (YP-C please see YP-C PDF INVERTER.doc) and getting the C11/Mach3 control my spindle.

Given the image below I made the following connectios (the symbols in red are the C11 terminals):

Attachment 211520

VFD -> C11 :

S1 -> PIN 1 (NO)
S2 -> PIN 2 (NO)
COM -> VIN2 (PIN1) & VIN1 (PIN16)
FU -> 10V (PIN 14)
COM -> GND (PIN 14)

Also, I attach some screenshots from Mach3 settings (Mach3 Screenshot Settings.zip), as you may understand better my case.

Using a multimeter:
I verified that variable speed control gets 12vdc isolated from a 12v power supply.
I checked that the 0-10vdc analog output does not give any indication or changes according to pot turning.
In Mach3, I tried to "Spindle Toggle" but my spindle does not start.

Any ideas would be bery helpful,

Thanks in advance,
Kostas.