how to configure pncconf for analog VFD with Mesa 7i96s (only pwm options)

Hi,
how to configure pncconf for analog speed control of the VFD with Mesa 7i96s (only pwm options are available for TB2 spindle speed control) i got a fuling DZB200 vfd wich is connected with a Mesa 7i96s. it needs 0-10V for speed control. I connected the vfd with TB2 22 and 23 for the speedcontrol.

• TB2 pin 23 (SPINDLE OUT) → VFD VI
• TB2 pin 22 (SPINDLE−) → VFD ACM

in pncconf i now only have pwm variants for the spindle speed control in the TB2 pinout config? which to choose for analog speedcontrol? For now when i enable the spindle i got a fixed speed which i cant change and consequently the output from the speedcontrol measures all the time arround 0.7V and doesnt change for whatever which speed i put in via the linuxcnc GUI which strenghtens the idea i always get the same voltage with only anoher pwm. 

SPINDLE+ (TB2 pin 24) on the 7I96S must connect to the VFDs 10V