Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping??? - Page 6


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Thread: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

  1. #61
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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by mactec54 View Post
    Easy L1 and N1 is the same going straight through the Filter Ground must be connect to the filter and if it does not have a Ground post on the output side, which it does not need, Ground then connects to the input side of the filter then to the VFD Drive


    so if you see

    L=L1

    N=L2

    PE =Ground

    You don't use or have a Neutral for NA 240v single phase, so don't get it confused with Ground both serve a different purpose
    Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???-filterphoto-jpg

    Just to make sure I don't blow this thing up...

    on the Line side, I connect each hot wire to each terminal on the input side, I connect a ground wire to the ground terminal on the input side.
    on the Load side, I connect one terminal to "R" and the other terminal to "T" on the VFD
    I also connect a ground wire from the INPUT side to the ground terminal on the VFD.

    Assuming everything improves and I mount this thing permanently, does anyone have any suggestions how to insulate the terminal lugs on this thing? I have all other AC connections pretty well covered or shielded so I don't kill myself with an accidental touch. This this has the terminals fully exposed make for an easy shock hazard.

    Chris D



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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    I don't see a terminal for a ground in your picture? But the case is metal and should be mounted on grounded metal. The insulated terminals is where L1 & L2 connect too, the output goes to the input on the VFD. You could use some RTV or the like silicone sealer to insulate.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router Mach4 Kimber 1911 45ACP


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Thanks for responding so quick!

    The ground terminal is on the input side, I somehow had the camera in perfect alignment so that one of the load terminals covers the Ground terminal.

    Chris D



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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by Chris D View Post
    Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???-filterphoto-jpg

    Just to make sure I don't blow this thing up...

    on the Line side, I connect each hot wire to each terminal on the input side, I connect a ground wire to the ground terminal on the input side.
    on the Load side, I connect one terminal to "R" and the other terminal to "T" on the VFD
    I also connect a ground wire from the INPUT side to the ground terminal on the VFD.

    Assuming everything improves and I mount this thing permanently, does anyone have any suggestions how to insulate the terminal lugs on this thing? I have all other AC connections pretty well covered or shielded so I don't kill myself with an accidental touch. This this has the terminals fully exposed make for an easy shock hazard.

    Chris D
    Correct you have your wiring figure as it should be , the only easy way to protect your self from a accidental is to put a screen mash cover over it this is quite common to do

    When you do mount the filter, the mounting surface should be free of paint just like anything else that you are Grounding to a metal surface

    Mactec54


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Never use metal unless its something like 16 gauge steel to protect terminals, use an insulator of some sort.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router Mach4 Kimber 1911 45ACP


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    I agree....insulating material of some sort. If it were me i would place an acrylic cover over it



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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by wmgeorge View Post
    Never use metal unless its something like 16 gauge steel to protect terminals, use an insulator of some sort.
    All machine manufacturers use metal covers like this for anything to do with EMI Protection or when ever they have to cover something like this

    Attached Thumbnails Attached Thumbnails Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???-dsc_9973-jpg  
    Mactec54


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by mactec54 View Post
    All machine manufacturers use metal covers like this for anything to do with EMI Protection or when ever they have to cover something like this
    The question was about Insulation, not EMI protection. He needs no EMI protection inside a grounded metal enclosure just to add a filter!

    Reposted here > Assuming everything improves and I mount this thing permanently, does anyone have any suggestions how to insulate the terminal lugs on this thing? I have all other AC connections pretty well covered or shielded so I don't kill myself with an accidental touch. This this has the terminals fully exposed make for an easy shock hazard.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router Mach4 Kimber 1911 45ACP


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    This device already has a metal shield...no need to add another. Most important here is to isolate the live parts against accidental touch



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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by wmgeorge View Post
    The question was about Insulation, not EMI protection. He needs no EMI protection inside a grounded metal enclosure just to add a filter!

    Reposted here > Assuming everything improves and I mount this thing permanently, does anyone have any suggestions how to insulate the terminal lugs on this thing? I have all other AC connections pretty well covered or shielded so I don't kill myself with an accidental touch. This this has the terminals fully exposed make for an easy shock hazard.
    That's what they use, he choose to buy that type of filter, when you use a filter like this that has spade connections you don't have this problem

    Mactec54


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by mactec54 View Post
    That's what they use, he choose to buy that type of filter, when you use a filter like this that has spade connections you don't have this problem
    What are you talking about?

    He asked about Insulation for the one he purchased. You posted a picture of a EMI/RFI metal shield.

    Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router Mach4 Kimber 1911 45ACP


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    Default Re: Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

    Quote Originally Posted by ericks View Post
    This device already has a metal shield...no need to add another. Most important here is to isolate the live parts against accidental touch
    This is what is used in all installations like this that have exposed connections like this it is a OSHA electrical safety requirement, this may be slightly different in Australia but they have regulations also for this type of protection requires a screen to be compliant

    GUARDING OF LIVE PARTS ( this is from OSHA safety electrical requirements )

    It should be noted that the purpose of this requirement is to protect any person who may be in the vicinity of electrical equipment against accidental contact. These people are presumably not electricians working on the equipment, and are not qualified or trained to be in close proximity to live parts.

    Except as required or permitted elsewhere in this subpart, live parts of electric equipment operating at 50 volts or more shall be guarded against accidental contact by approved cabinets or other forms of approved enclosures, or by any of the following means:
    By suitable permanent, substantial partitions or screens so arranged that only qualified persons will have access to the space within reach of the live parts. Any openings in such partitions or screens shall be so sized and located that persons are not likely to come into accidental contact with the live parts or to bring conducting objects into contact with them. It is good practice to use covers, screens or partitions which can only be removed by use of tools, so that unqualified persons are less likely to violate them.


    Enjoy I suggest you check Australia's electrical requirement's for this, Hobby electrical requires the same protection as any other electrical installation

    Last edited by mactec54; 05-25-2019 at 09:39 AM. Reason: corrected the word OSHA
    Mactec54


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Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???

Mach3 - ESS smooth stepper - Huanyang Chinese VFD - Mach 3 e-stopping???