MAHO 1000 c hardware with Kanalog KFlop controller advice


Page 1 of 2 12 LastLast
Results 1 to 12 of 23

Thread: MAHO 1000 c hardware with Kanalog KFlop controller advice

  1. #1
    Member salvador12's Avatar
    Join Date
    Aug 2019
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default MAHO 1000 c hardware with Kanalog KFlop controller advice

    Hey guys, so I have this MAHO , all 3 servo drives are working as should, all motors are also working , the spindle drive and motor is also there. The MAHO has it's original glass linear scales on each axis, the readhead is Philips PE2580/20, I assume I would need to connect the outputs from each of the 3 scales into my Kanalog board, any advice on how to or maybe someone here has done it already?
    I think I have located the possible Kanalog board analog outputs for my differential control voltage +-10 volts for each of my 3 servo drives, they are on the JP11 connector named DACS outputs. Is this correct? So I take one of the dacs and one of the grounds and connect them to each of my 3 servo drives? Like DAC 1 and GND 1 to my first drive and then DAC2 and GND 2 top my second drive etc?


    I would also probably need to connect my axis limit switches to the Kanalog and probably connect them simply in series so that if either one is hit the Knalog board stops the drives? Or should I connect them separately?

    Anyway I probably left out something here , any help or advice is very very appreciated, thank you.

    Similar Threads:


  2. #2
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    3223
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Hi,

    The MAHO has it's original glass linear scales on each axis, the readhead is Philips PE2580/20, I assume I would need to connect the outputs from each of the 3 scales into my Kanalog board
    Most likely yes. Do you have or did you search for specifications? Are they differential encoders? See FAQ Single ended vs Differential.

    To have a stable system with linear scale feedback it is usually necessary to also have feedback from the motor shafts. Are there encoders or tachometers on the motors connected back to the motor Drives?


    I think I have located the possible Kanalog board analog outputs for my differential control voltage +-10 volts for each of my 3 servo drives, they are on the JP11 connector named DACS outputs. Is this correct?
    Yes that sounds correct.


    So I take one of the dacs and one of the grounds and connect them to each of my 3 servo drives? Like DAC 1 and GND 1 to my first drive and then DAC2 and GND 2 top my second drive etc?
    Yes, but the 8 DACs are numbered 0-7 so you would normally wire DAC0 to the first drive.


    I would also probably need to connect my axis limit switches to the Kanalog and probably connect them simply in series so that if either one is hit the Knalog board stops the drives? Or should I connect them separately?
    Kanalog has 8 24V Opto isolated inputs on JP15. Separately is better if you have enough inputs so KFLOP can tell which axis is in the limit and also which end of the limit. See configuring Limit Switch Options.

    Regards
    TK http://dynomotion.com


  3. #3
    Member salvador12's Avatar
    Join Date
    Aug 2019
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Well I don't know what type of reader the original Philips PE2580 is , whether differential or single ended , tried searching but can't find any luck.Maybe someone here can tell me ?
    All I know for now is that the cable coming out of the reader head block is orange and has 7 wires inside and a screen, each of the seven wires is a different color.


    As for the limit switches , well I will have to take a closer look at them but in general should I take some external power supply and power each of the switches so that if it is pushed the external dc voltage will go through the switch into the Kanalog JP15 corresponding input or does the JP 15 gives out a 24v voltage itself and each of the pairs can be attached to a single switch and as the switch closes the voltage given by the Kanalog board on the JP15 goes to short and so the board knows that specific switch has closed?
    What are the neighboring JP13 connector for?

    thank you.



  4. #4
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    3223
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Hi,

    Well I don't know what type of reader the original Philips PE2580 is , whether differential or single ended , tried searching but can't find any luck.Maybe someone here can tell me ?
    All I know for now is that the cable coming out of the reader head block is orange and has 7 wires inside and a screen, each of the seven wires is a different color.
    Probably differential. Differential normally have:

    A+ A- B+ B- +5V Gnd 6 wires plus shield

    The + and - complementary signals should be a twisted pair of wires. Often like Green and Green/white.

    You might check with a voltmeter. The + and - signals should be complementary. When one is high the other is low.


    As for the limit switches , well I will have to take a closer look at them but in general should I take some external power supply and power each of the switches so that if it is pushed the external dc voltage will go through the switch into the Kanalog JP15 corresponding input or does the JP 15 gives out a 24v voltage itself and each of the pairs can be attached to a single switch and as the switch closes the voltage given by the Kanalog board on the JP15 goes to short and so the board knows that specific switch has closed?
    Yes a separate isolated 24V power supply should be used for the limit switch circuity in order to keep all the wiring isolated from other KFLOP/Kanalog circuits.

    Think of the Opto Inputs like light bulbs. You must connect 24V to them to turn them on. And the + terminal must be positive relative to the - terminal.


    What are the neighboring JP13 connector for?
    JP13 are opto isolated Outputs. Those are similar to low current (25ma max) switches than can be used to control things. They might be used to enable amplifiers or turn on the Spindle VFD or set the Spindle VFD direction,

    Regards
    TK http://dynomotion.com


  5. #5
    Member salvador12's Avatar
    Join Date
    Aug 2019
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Ok so for the limit switches I can simply take a 24v dc source connect the - or gnd to each of the opto input gnd or - terminals and take the positive output of the 24v source and route it to each of the switches, then the other wire from each of the switches I can simply attach to each of the positive + opto terminal inputs, so whichever switch will close it will then pass the +24 to the +terminal of that opto input , right?


    is there any schematic on how to wire such differential linear scales to a Kanalog board? It seems to me that terminals JP1 and JP2 could be used as they have lots of +- inputs and then JP8 terminal has some +5v outputs which could be used to power the scale read head, right?



  6. #6
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    3223
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Ok so for the limit switches I can simply take a 24v dc source connect the - or gnd to each of the opto input gnd or - terminals and take the positive output of the 24v source and route it to each of the switches, then the other wire from each of the switches I can simply attach to each of the positive + opto terminal inputs, so whichever switch will close it will then pass the +24 to the +terminal of that opto input , right?
    yes



    is there any schematic on how to wire such differential linear scales to a Kanalog board? It seems to me that terminals JP1 and JP2 could be used as they have lots of +- inputs and then JP8 terminal has some +5v outputs which could be used to power the scale read head, right?
    correct. Is a schematic really necessary? There are some example wiring diagrams here.

    Regards
    TK http://dynomotion.com


  7. #7
    Member RotarySMP's Avatar
    Join Date
    Mar 2004
    Location
    Vienna, Austria
    Posts
    1257
    Downloads
    5
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Müllernick scoped the Phillips encoders on has MAHO 700 conversion a few years ago. He couldn't decode the output (and he's a guy whole designed his own servo amps). You will probably have to replace the encoders with some stardard off the shelf TLL encoders like the Ditrons.

    Regards,
    Mark


  8. #8
    Member salvador12's Avatar
    Join Date
    Aug 2019
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    is there any reference of thread where this "Mullernick" has written about these Phillips encoders and their unsuitability to the Kanalog board input?



  9. #9
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    3223
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Hi salvador12,

    I think RotarySMP is right that the scales are non standard and will probably need to be replaced. Googling I found this on the LinuxCNC forum.

    Regards
    TK http://dynomotion.com


  10. #10
    Member RotarySMP's Avatar
    Join Date
    Mar 2004
    Location
    Vienna, Austria
    Posts
    1257
    Downloads
    5
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    It was in this german language thread on his LinuxCNC conversion of the 700C.
    Peters CNCECKE

    It would be well worth you time to read this thread through google translate. Very impressive how he rolled is own motor drivers, including programming the micros in assembler.

    Regards,
    Mark


  11. #11
    Member salvador12's Avatar
    Join Date
    Aug 2019
    Posts
    16
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    I guess I have to ask then , what would you folks recommend me to do, should I use encoders on each of the servo motors and they would be good enough in accuracy or should I buy some modern linear scales that are compliant with Kflop Kanalog,

    by the way are there any known linear scales as well as rotary encoders that are known to work great with Kanalog and be reliable?
    Any advice is appreciated.



  12. #12
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    3223
    Downloads
    0
    Uploads
    0

    Default Re: MAHO 1000 c hardware with Kanalog KFlop controller advice

    Hi salvador12,

    I guess I have to ask then , what would you folks recommend me to do, should I use encoders on each of the servo motors and they would be good enough in accuracy or should I buy some modern linear scales that are compliant with Kflop Kanalog,
    Linear scales would be best. But there should also be feedback from the motor shafts. Do you know if the motors have encoders or tachometers?


    by the way are there any known linear scales as well as rotary encoders that are known to work great with Kanalog and be reliable?
    Any advice is appreciated.
    Most any optical digital incremental (not absolute) encoders that have differential outputs should work well. I prefer optical encoders rather than magnetic or capacitance types because they are typically based on lines microns wide instead of magnets millimeters wide so need much less interpolation so are more precise. Although optical encoders are more prone to contamination.

    Regards
    TK http://dynomotion.com


Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

MAHO 1000 c hardware with Kanalog KFlop controller advice

MAHO 1000 c hardware with Kanalog KFlop controller advice

MAHO 1000 c hardware with Kanalog KFlop controller advice