Can I use 9v iductive sensors on a PMDX-126 ?

[CNC Noob]

Hello,

 My machine has 9v inductive sensors for homes on all axis.
They are 2 wire sensors that are in a state of 9v @ 1 mA
with no metal present or 9v @ 3 mA with metal present.

Will these work directly on the PMDX-126 ?
If not, is there a board I can buy to make them work?

Sensors look to be actually 8.2v
Namur SI8-N1 (datasheet attached)

Thanks,

Noob

[Steve Stallings]

Hello Noob,

The SI8-N1 sensor requires an external amplifier for proper operation.
Quoted from their web site:

   SENSOR VERSION N IN ACCORDANCE WITH
   NAMUR STANDARDS - DIN 19234 (2 wire)
   These are two-wire non amplified D.C. sensors
   which contain only the oscillator and are adapted
   to control an electronic amplified thereshold
   circuit.

The input circuits on PMDX boards are not designed
to work with this style of sensor and we do not offer
a board with the kind of signal conditioning required.

We recommend using 3 wire sensors.

Regards,
Steve Stallings
PMDX