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P a g e
Overview
This installation manual is designed for Mitsubishi Variable Frequency Drives (VFDs) purchased from
MachMotion. It was written to interface VFDs with the Apollo I Breakout Board. It provides all the information
from wiring your VFD to troubleshooting it. Much of the wiring and many of the settings should already be
configured correctly for your spindle motor. However, all the information is provided in case you ever need to
disconnect or change something.
When the spindle is turned on inside Mach3, the Apollo I Breakout Board provides a 0-10V analog signal to the
VFD and turns on one of two relay contacts for clockwise and counterclockwise rotation. The VFD then scales
the analog signal to the maximum frequency of the spindle motor. For instance, if a spindle motor’s max
frequency is 60Hz, then 5V will give you 30Hz and 10V will give you 60Hz. The analog voltage is also scaled to the
max pulley speed inside Mach3. In the previous example, if the maximum pulley speed is 1000 RPM, then 500
RPM will make the VFD output 30Hz and 1000 RPM will make it output 60Hz.
If you purchased a drive enclosure from MachMotion, then all you have to do is set up your VFD parameters and
connect your spindle motor. Otherwise you will also have to wire up an enable circuit for your VFD.
We hope that this installation can be as quick and easy for you as possible. If you have any questions, please do
not hesitate to give us a call.
Sincerely,
The MachMotion Team
http://www.machmotion.com
14518 County Road 7240, Newburg, MO 65550
(573) 368-7399 •
Fax (573) 341-2672
