LinkBack URL
About LinkBacksI think they are 12 volt NPN NO just guessing. Though I did measure the output voltage for the limit switch ports on the mikini part and so I know it's 12 volt
I think they are 12 volt NPN NO just guessing. Though I did measure the output voltage for the limit switch ports on the mikini part and so I know it's 12 volt
I think this is the right datasheet:
http://www.ia.omron.com/data_pdf/dat..._ds_csm468.pdf
CAD, CAM, Scanning, Modelling, Machining and more. http://www.mcpii.com/3dservices.html
ok I figured out how to wire them up I think. Pin 1 is +12V pin 2 is signal and Pin 3 is -12v. The problem I have is that it's active low, but it's high signal is only about 1V which won't work with the TTL logic of this BOB. TTL high is a minimum of 2 Volts. Can anyone recommend a good 5V or 12V TTL output photo interrupter switch for use with a cnc4pc C23
Allen, I think we are all ready for a video of the machine up and running the new spindle, with now issues... Will that happen this weekend?
Best of luck to you and keep us updated!
CAD, CAM, Scanning, Modelling, Machining and more. http://www.mcpii.com/3dservices.html
It might, I got some new home switches in this week. I am going to work on getting them fitted and working today. Then after that it's work on wiring up the spindle itself. Here is a picture from last week. This is in the machine now and the new stepper drivers are working well. I will try and post another update this weekend.
Originally Posted by mcphill
Allen,
How's that update coming? Waiting patiently!
CAD, CAM, Scanning, Modelling, Machining and more. http://www.mcpii.com/3dservices.html
Progress report, I got the Y and Z axis home switches mounted and working Pretty easily. The X axis was another matter entirely. I have about two days of fiddling in to that one switch. The problem is the new switch is not lining up with metal flag. And nothing is easily accessible or visible on that axis. The switch has gotten ripped off 3 times and the screws got sheared. So I had to go back to the drawing board on that one. I am going to try replacing that switch with a hall effect switch and magnet.
I have been out of town three weeks now. The first two weeks on business and this last week on vacation in Hawaii. So that has slowed progress a lot. I am hoping to take a whole week off in two weeks to finish the project.
Progress at last. That one X switch took far too long. Spindle is turning again getting close.
http://www.youtube.com/watch?v=DLccuCNuCXA]Mikini 1610L AC motor and VFD replacement project Video 6 - YouTube
Hey if you have time could you document how you hook up the coolant to the BOB I have a similar board C11T and would like to run mine through the board also if you could show VFD hook up I don't have the Hitachi but any real world connection would probably help.
Build is really coming along and looks very professional. Spindle sounds really smooth I bet it will make some nice smooth cuts.
Looking good Allen!!!!! I really like how the motor sounded at full RPM. I don't think you'll have any issue of the motor faulting
Once, I get caught up with some customers, I'll be doing the same retrofit. My disappearing screen issue is coming back and I just don't want to waste time with the Mikini electronics anymore.
As for hooking up the VFD to the c23, I have a c11 on my lathe and I'm pretty sure i used both relays to run the vfd....I'll check tonight. I think one relay was used to stop and start and the other was for reversing. To run the coolant pump, I bought a relay board from Arturo (cnc4pc) and just hooked it up to an output pin.
Lastly, you'll really enjoy those digital drives when in actual use....they are really nice.
Looking good, Allen, thanks for the update! Really interested to see how the VFD does on lower speed cuts in steel - that is my main issue with the system right now. Cutting high speed in aluminum works fine, but it just has no guts when trying to go slow...
The steppers sound REALLY good too, on the new drivers. Those are the original stepper motors on the axis drives, right?
Finally, I see your have an older machine with the metal front door. My newer one is all plastic. I believe the X-axis switch on my machine is already located where you put yours...
CAD, CAM, Scanning, Modelling, Machining and more. http://www.mcpii.com/3dservices.html
I will document the coolant hookup. Its pretty straight forward just run the AC hot through the relay NO side. I will also document the programming and wiring for the VFD. Thanks for the kind words.
Posting Permissions
