Has anyone tried this speed controller?

General CNC CNC Routers
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1

Has anyone tried this speed controller?

2

Yes, the riorand replaced this. About one out of 8 will not function.

3

This is my spindle motor controller board. I removed potentiometer in order to use PWM.

Wiring:
Blue/Black wires go to the motor power supply 48V.
White/Black wires go to 3040 spindle motor 400W, 12000rpm max. Black directly, white to relay output and another one from relay to motor. This way relay acts as ON/OFF switch controlled with M3/M5.

Relay inputs:
VCC - 3.3V from external supply
GND - GND
IN1 - Spin on TinyG

Green connector (PWM):
Yellow - GND
Orange - PWM on TinyG

I keep capacitor from old setup, possibly not needed anymore when using optocouplers.
https://plus.google.com/photos/113032133582788403357/albums/6513069764563860289/6513069768927284274