Hardinge CHNC4 Retrofit

[cncsnw]

In the pictures I have of a similar control (T2149), there were two conduits running between the gray Centroid control cabinet and the interconnect compartment on the back of the lathe.

[lavrgs]

Thats good to know, it helps chart my path. In the mag cab the second 2" hole is on the bottom to the left of the wall so I'll try to keep wire from going through the hole in the vertical. I think those wires are easy to splice.

I have a couple pictures you sent earlier but if you have any showing which wire are going to the holes that would help clarify.

THX

[cncsnw]

As one would expect, it appears that AC power and servo motor power are in one; encoders, PLC inputs, and VFD control signals are in the other.

[lavrgs]

Is there a reason to use metal vs plastic liquid tight conduit. Does the metal provide better shielding or is it not an issue?

[lavrgs]

I haven't spent any time researching but if someone knew the spec of the belt that Centroid fitted to the Z axis CHNC retrofit I would appaciate the info.

[lavrgs]

The splicing of wires is complete and all the cables have been put into Liquid Tight conduit - so the lathe is connected to the control cabinet. I have a tube tester on the bench and will get back to the sub-panel in a few days.

[lavrgs]

This is a machine specific question, Hardinge CHNC4, possibly for a specific user; CNCSNW
I have started the wiring the sub-panel and have a question about the location of F4, It's shown on the schematic attached, along with several other fuses, and I am assuming they are within the lathe. I am trying to make the connection T3 to F4 (live) on the contactor and would expect that the fuse would be on the lathe via Cable B but it is not clearly defined...
...or Do I need to add fuses?

1-CHNC4 S14674.pdf

(193.64 KiB) Downloaded 110 times

[cncsnw]

Those fuses are not part of the Hardinge machine.

In the old control, there were fuses on the PLCIO2 unit for each output.

With the new control, you will need to add your own fuses.

One option (out of many) would be to use some of these:
https://www.automationdirect.com/adc/sh ... alog/dn-f6

[lavrgs]

Those fuses are not part of the Hardinge machine.

In the old control, there were fuses on the PLCIO2 unit for each output.

With the new control, you will need to add your own fuses.

One option (out of many) would be to use some of these:
https://www.automationdirect.com/adc/sh ... alog/dn-f6

Thanks for the confirmation. I will have to confirm the amperage draw of the solenoids but expect a 1A will most likely be suitable.

[lavrgs]

I'm making progress; the sub panel has been configured, wired, and placed back in the cabinet. I plan to get the power supply wired up today and get the ALLIN1DC back to the where I was prior to removing the sub panel; spindle was spinning but not under Centroid control, and the axes where moving under Centroid control. Once I get there it will be a matter of systematically adding features; probably starting with limit switches, VFD and E-Stop.