Boss 5 to Mach 3 electrical help needed - Page 2


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Thread: Boss 5 to Mach 3 electrical help needed

  1. #13
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    Default Re: Boss 5 to Mach 3 electrical help needed

    The steppers should be OK if they're in working order - servos wire exact same way so don't let that hold you up. They need 56VDC and up to 8 amps. Got mine at 7.

    To find spindle lines - follow connection from backside of motor into cabinet. There should be numbers on them, find on schematic(s) and that will guide you through the system. Or get rid of all that stuff and connect a VFD on cable to spindle. **See edit2** If running RPC to get 240 3phase then stepping down to 208 3ph -ant to step sin might wgle phase 240 to 208 and use VFD that has a 200-240 single phase in - it will put out exactly what goes in but add 3rd leg **See edit2***. Essentially the RPC is extra equipment in this setup.

    No need for additional power supply if using 1180 drives - use 120v already available - likely need a 120 line for PC, just use that. If using RPC there is no neutral - pulling 120v from that is risky at best. If there are lights / outlets with 120 - just tap into that however works best for you - hard wired to extension cord w/ surge strip - many options for this.

    Any 5v or 12v power needs for ESS / BOB may be pulled from your PC power supply. Example - find flopply drive connection it'll have both Red + black = 5v / yellow + black = 12v. ESS(5v) and BOB(12v) will get power from here. Your MACH is what integrates spindle and axis controls - really the two systems are individual but share a BOB.

    I'm setup with with ESS / C62 board to KL2283 drives - so I do as described except with 220. (220, 221 whatever it takes. Bonus if know where that haha comes from)

    For various reasons I wired mine as 5 individual parts, each is switched and isolated from others - Spindle / Axis / PC / Way Lube / Fans. I use vortex tube / compressed air for chips so I didn't bother with mist / coolant.

    EDIT - CNC4PC makes an adapter C34KL ($3.50per) for Keling drives so can plug in via eternet from BOB if there, partly why I got C62, Drives, VFD, Limits may be connected via RJ45. Makes what can be confusing pretty simple.

    Edit2 - If looking at VFD's look at the tag. One like this is what you'd likely be looking for
    http://www.plchardware.com/plch_imag...17_07_56_b.jpg

    - didn't do any research on this particular model but looks like out voltage may be set to anything from 0 to input voltage. Scrapping need for step down xformer - just hook up 220v setup per manual and get required 3ph out to motor. Something to maybe look into.

    All I can say is when purchasing a VFD - make sure it either has the manual or manual located and downloaded BEFORE buying it. Electrical brands you've heard of before are usually safest bet.

    Last edited by SchortBus; 08-11-2017 at 02:17 PM.


  2. #14
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    Default Re: Boss 5 to Mach 3 electrical help needed

    As FYI - received C34KL adapters today, they did not fit the 2283. Likely wouldn't fit the 1180 either. The pin inputs on chip are too wide. That was a bummer.



  3. #15
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    Default Re: Boss 5 to Mach 3 electrical help needed

    Ok, so it sounds like you both highly recomend a VFD. So will it produce the same amount of power either way? I will look at VFD's now.
    So with a VFD I can just run 220 to it and skip the RPC and buck/boost transformers, right? Now I wish I didn't buy the buck transformers, those things were about $300. Maybe I can sell them.

    I have the bob, so it also sounds like an ESS Is a good option too. What is the difference between the two. I don't quite understand that.

    I don't have a floppy drive in the computer I am using. How about a USB port? Will that work supply the 5V or 12V?

    thats a bummer about that adapter not working.

    BTW, I liked Michael Keaton in Mr. Mom.

    Is it possible to control the RPM with Mach 3?

    I appreciate all the help from you guys. Thank you



  4. #16
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    Default Re: Boss 5 to Mach 3 electrical help needed

    ESS and BOB go together like peas and carrots. There is more than one way to do this, but many users of Mach use the warp 9 ESS - check out CNC4PC. I chose ESS, that connects directly to BOB (C62).

    Crack open PC - there will be at least one set of unused connections coming from the power supply - the smallest one at end of the line is usually the floppy (even if PC doesn't have a floppy). If not any SATA has red / yellow / GRD too. Basically you need a red wire (5v) / yellow wire (12v) and two blacks (GRD). I snipped the connector off and spliced / soldered extensions out to a terminal block for 5v / 12v power. Connect ethernet from PC to ESS, the 5v powers ESS / 12v powers BOB. USB doesn't supply enough voltage - for this setup. FYI - after you yank all that stuff out of cabinets, you'll have plenty of terminal strips handy. Use them. If lucky an electronics supply in town has the connection inside PC instead of splicing (mine didn't).

    I use Mach4 - but yes Mach an interface for spindle RPM / direction. BOB sends signals to the VFD. VFD actuates spindle. Depending on VFD, external relay may be required for F/R, H/L and reset. There is likely one you can use in the axis control cabinet if needed. Or if have the orginal bridgeport controls - there is a slew of switches / buttons can use to set up same thing if relay is confusing.



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Boss 5 to Mach 3 electrical help needed
Boss 5 to Mach 3 electrical help needed