The spindle encoder requires 5VDC and has two outputs: 1ppr and 150ppr. (ppr = pulses per revolution).

For threading in Mach, we can use the 1ppr signal alone; the 360ppr signal isn't required.

Encoder pinout

Spindle encoder pinout

signal pin wire colour
GND 6 black
+5VDC 7 brown
1ppr output 3 green
360ppr output 2 white

The connector on the end of the encoder cable is an AMP 206434-1. The chassis-mount connector it mates up to is a 206433-1. You will also need four pieces 66569-3 solder cup female socket pins. Or just cut the connector off -- the wire colours are listed.

If you know of other machines this encoder is present on, please add them to the category list below.

Inner viewEdit

Encoder innards

Inside the spindle encoder showing 360ppr and 1ppr tracks (1ppr slot is at 3-o'clock position)


Encoder schematic

Spindle encoder schematic. Pinout refers to PCB header, not cable connector.