This is a Hardinge CHNC4 lathe from mid-1980s, retrofitted with Centroid T39 control by Advanced Machinery Resources in the summer of 2002. I contracted to do the control design, PLC programming, and much of the cabinet wiring.
The keyboard and 15" LCD display are on a convenient articulated support arm near the headstock.
All control electronics are installed in the original electrical cabinet
on the back of the machine.
Control cabinet: PC is on upper left; Koyo PLC below; Centroid DC servo drive
to right; Omron 10HP inverter on bottom left.
Electrical cabinet detail.
With a new generation of hardware and PLC software from Centroid, we have been able to move away from the Koyo PLC unit to a simpler installation using Centroid's combined PLC and DC servo drive.
CHNC4 retrofit with newer cabinet layout
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Copyright © 2008 Marc Leonard
Last updated 09-Mar-2008 MBL