AllInOneDC Power On Behavior
Posted: Wed Dec 30, 2020 8:20 pm
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
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.
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
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.