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Thread: Mach3/g540/huanyang vfd connections

  1. #13
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    Default Re: Mach3/g540/huanyang vfd connections

    I am back again . with some more questions.

    first i removed the usb and connected the com adapter . the usb was freezing the mach for some reason. another finding is that the manual i have has the modbus+ and modbus- on the opposites pins.

    anyway the problem now is that on the lcd of the vfd i am getting a reading of 0.7amps to 0.9amps. i ve nvere seen that going more than 1.1. when it is working on 18000 rpm it should show more than 2amps.

    secondly . through the 120hz minimum frequency my spindle is down at 7200. is there anyway to get it work slower than that?

    last but more important . on the config of the plugin you are choosing values. how can i read this values in dro ? i want to be able to read voltage (input output) amps and temperature of the vfd. i installed the screen configuration program but i cant see anywhere how to setup these readings.



  2. #14
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    Default Re: Mach3/g540/huanyang vfd connections

    I will have to look out my old notes, all the communication over RS485 takes the form of a Modbus style packet of bytes, either 6 or 8 bytes in a packet.
    Followed by two bytes of checksum.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


  3. #15
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    Default Re: Mach3/g540/huanyang vfd connections

    Quote Originally Posted by Happy Feet View Post
    I am back again . with some more questions.

    first i removed the usb and connected the com adapter . the usb was freezing the mach for some reason. another finding is that the manual i have has the modbus+ and modbus- on the opposites pins.

    anyway the problem now is that on the lcd of the vfd i am getting a reading of 0.7amps to 0.9amps. i ve nvere seen that going more than 1.1. when it is working on 18000 rpm it should show more than 2amps.

    secondly . through the 120hz minimum frequency my spindle is down at 7200. is there anyway to get it work slower than that?

    last but more important . on the config of the plugin you are choosing values. how can i read this values in dro ? i want to be able to read voltage (input output) amps and temperature of the vfd. i installed the screen configuration program but i cant see anywhere how to setup these readings.
    To change your spindle speed to the minimum is 6,000 change the 120Hz to 100 Hz

    PD011=100

    PD73=100

    Mactec54


  4. #16
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    Default Re: Mach3/g540/huanyang vfd connections

    Quote Originally Posted by mactec54 View Post
    To change your spindle speed to the minimum is 6,000 change the 120Hz to 100 Hz -- PD011=100 PD73=100
    i did that but i was hoping in much lower speeds down to 1000rpm or so. Anyway i ll stick to that.

    @ Al The Man
    Al these looks greek to me. so dont go searching any notes as i would not understand a bit ....! sorry to say that but this is the truth.

    the point was that i wanted to see my amperage but probably not crucial as i can read them on the vfd.

    what about the amperage that i wrote before . is it normal ? shouldn't this thing work at 3amps and more ?

    Last edited by Happy Feet; 06-30-2018 at 12:31 PM.


  5. #17
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    Default Re: Mach3/g540/huanyang vfd connections

    Quote Originally Posted by Happy Feet View Post
    i did that but i was hoping in much lower speeds down to 1000rpm or so. Anyway i ll stick to that.

    Al these looks greek to me. so dont go searching any notes as i would not understand a bit ....! sorry to say that but this is the truth.

    the point was that i wanted to see my amperage but probably not crucial as i can read them on the vfd.

    what about the amperage that i wrote before . is it normal ? shouldn't this thing work at 3amps and more ?
    You can not use your spindle for anything at 1000 RPM you would most likely see a lot of smoke if you did, some of these spindles can go as low as 3000 RPM, these are the more expensive spindles, and are designed for that lower RPM

    For the amps, it depends how it is being read, most are reading only 1 phase with the VFD readout, not the over all, so you times that x3 to get the correct output to the spindle

    Mactec54


  6. #18
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    Default Re: Mach3/g540/huanyang vfd connections

    Thanks guys . Thanks a lot .



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