Page 1 of 1

AllInOneDC Power On Behavior

Posted: Wed Dec 30, 2020 8:20 pm
by johnballard
Hi,

I'm very happy with my Lagunmatic 250 milling machine with AllInOneDC retrofit. I recently eliminated my phase generator and replaced the reversing contactors with VFD's. Everything is working nicely on 240V single phase and I have been making money.

I have one leftover issue. Once in a while I will power the mill off when the z-axis is at the Z+ limit (where it has to be to use the air operated drawbar). When I power back up, I cannot home the mill. I cannot jog either. I have to remove the cover from the z drive, manually move Z off the z+ limit, and then I can home. I don't like getting my fingers into the belt drive :o

I'm sure there are many things I can do, but I would appreciate any advice.

p.s. I made some changes to the source code to run the VFD's. Also, I have two lube pumps; one for the ways, the other for the screws (different oil). The NO alarms were connected in parallel, but I will change them over to NC and provide both inputs to the PLC to have separate 'low oil' messages.

Re: AllInOneDC Power On Behavior

Posted: Wed Dec 30, 2020 8:30 pm
by cncsnw
You should be able to select Slow, Continuous jog mode, then press the yellow Z-minus jog button to jog down until the limit switch clears.

Have you tried that?

Re: AllInOneDC Power On Behavior

Posted: Wed Dec 30, 2020 9:30 pm
by johnballard
No, I don't think so. I will test that tomorrow.

I knew there must have been an easy way...