Sunday, May 26, 2013

Connecting Huanyang HY01D523B VFD speed controller to Mach3

Huanyang HY01D523B VFD
Few months ago I purchased Huanyang HY01D523B VFD and 1.5 KW water cooled spindle motor from eBay for my CNC router.  Recently I completed mechanical part and started final part, electrical. First of all I googled on the how to control spindle from software. Luckily there is a way not only to turn spindle on/off from Mach3, but control RPM and read actual PRM count back. This part a bit tricky as Huanyang VFDs aren’t implementing standard ModBus protocol, but uses their own, so is not directly supported by Mach3. But I found special plug-in which solves this issue, and I’ll back to software part later.

Connecting power lines

HY01D523B VFD could be powered from single on three-phase 220V/50Hz. I use single-phase power line, so I connected phase wire to R terminal of VFD, and null line to T; PE goes to E terminal.
Spindle is three-phase, and is connected to U, V, W terminals. If your spindle runs in wrong direction, just swap any two wires of the motor. For details please refer to VFD manual.

Hardware interface

To connect VFD to PC, you will need RS-485 adapter.