G540 E-Stop - Page 9


Page 9 of 13 FirstFirst ... 6789101112 ... LastLast
Results 161 to 180 of 252

Thread: G540 E-Stop

  1. #161
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    The good news is that I got a green light on G540 and all looks good. Thank you both, you Al and John for all the good help.

    Now for the motor cable I thought it will be a piece of cake but looks like I can’t put it to bed LOL
    I don’t know what kind conductor I will get but I have seen them at HD single wires and I guess I will just get one with 600V rating. Why is not the best solution Al ?

    Regarding your post 160, I don’t understand what you mean. But if you mean to re configure the VS unit to use 3 con 16g + 2 cond 20g I don’t think it is worth the trouble. I mean I got your 4 cond 16g + I will buy a one cond and all I have to do is solder the ends on both sides and I will have what I got from Sherline.

    Perhaps I’m missing something?

    Nicolas


  2. #162
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    Post #139 explains it.
    There are two options.
    (1) rewire/extend existing cable with 5 cond 16g.

    (2) As you had trouble finding the cable I suggested using 3 (or4) cond 15G to just extend the (2) motor and (1) ground conductor(s) and then use 2 conductor ~20g for the sensor, but in this case the sensor would be wired in series with the relay or circuit that switches the power on to the drive.
    This would requires a minor difference to the original circuit.
    These are two options, I personally would opt for the second for some of the reasons previously mentioned, but it is your choice.
    Remember the sensor is not needed to run the motor, it is only a safety item.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  3. #163
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    Now I understand but Al, you know MUCH more than I do and therefore I can’t appreciate the difference between the 2 methods. I know that by re design will allow me to use smaller gage wires for the sensor but I’m hesitant to do so because I will go against the manufacturer.

    Now if I knew at least half as much as you Al, I will have gone with the re design

    I will take the easy route and use the 4 cond 16g + 1 cond 16g

    Nicolas


  4. #164
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    Quote Originally Posted by kolias View Post
    I know that by re design will allow me to use smaller gage wires for the sensor but I’m hesitant to do so because I will go against the manufacturer.
    Thats Ok I understand.
    But they are not a 'Manufacturer' they just put a system together from different components and are subject to the mistakes and foibles of anyone doing this!
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  5. #165
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    You are right, they are not the manufacturer

    I was thinking that I can't do very much until I receive the cable and so if it is not too much of a trouble to send me the drawing you mention earlier and I will study to see if I understand it etc.

    But please remember that I don't know how to read electrical drawings well so please use explanations and not symbols

    Nicolas


  6. #166
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    I will put it together over the next day or so as time permits.
    Can you identify the relay you are using to turn the drive on from Mach etc?
    Previous drawing posted?
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  7. #167
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    Although I have installed the two 24VDC relays in my controls enclosure, I do not plan to use them soon. I will operate the drive (Taig spindle) manually for the first few months until I get familiar with the machine and controls.

    I dont understand what this relay has to do with the cable but you know better. Anyway the relay is T9AP1D52-54 with 24VDC coil

    Nicolas


  8. #168
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    Hey Al

    Last night after 10 minutes of operation the A axis EZ-G540 DB9 connector to G540 started to smoke and I shut down the machine. It turns out that one of the 2 screws holding together the DB9 rubbed the insulation of one wire and sort it out.

    I have no confidence on the remaining DB9 connectors and I bought 4 new male DB9 plain connectors to re do the wiring and the following resistors.

    3.1K, 1/2W (Black ones) and 3.3K, 1/4W (tiny ones) see attached pic

    The G540 manual says for my motors which are 2.8A to use 2.8K, current limiting resistors, 5%, 1/4W.

    But the guy at the store knows nothing if these resistors are current limiting neither what the 5% means.

    To your opinion, is it ok to use these resistors and which one will be better

    Attached Thumbnails Attached Thumbnails G540 E-Stop-dsc03883-jpg  
    Nicolas


  9. #169
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    Resistor are inherently current limiting, depending on the value, the 5% refers to the tolerance they are manufactured to.
    For example say you wanted 5% and only 10% were available, you would have to buy a small quantity and then measure them to select the ones that were close to, or within 5%.
    If you really need 2.8k then use the closest 3.1k.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  10. #170
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    Thanks Al

    On a DC circuit do you normally connect the on/off switch to the + or - ?

    Perhaps it makes no difference ?

    Nicolas


  11. #171
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    On a circuit where the supply -ve is connected to Earth Ground then you would normally switch the +ve.
    If floating supply then it is optional, but the tradition has always been to switch the +ve.
    in most case.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  12. #172
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    Can you read in a DWG or DXF file?
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  13. #173
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    I forget which program opens .DWG files but .DXF will be fine.

    My Acad is only V14 so if you send me a .DXF from a later version I dont know if I will be able to see all the details etc.

    I also have easy access to MastercamX5

    My 1st attempt to solder the DB9 socket did not go that well LOL, guess need more practice

    Nicolas


  14. #174
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    Try this in PDF
    The relay would be ready to use with Mach control with a small Modification.
    Al.

    Attached Thumbnails Attached Thumbnails G540 E-Stop-kbcontrol-pdf  
    Last edited by Al_The_Man; 08-28-2012 at 08:16 PM. Reason: Changed to 20g 2 pair
    CNC, Mechatronics Integration and Custom Machine Design

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


  15. #175
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    Thank you Al for taking the time to make such an easy to understand drawing.

    To be able to fully understand what I have to do I will have to open the VS unit and follow your drawing to find out if there are any grey areas.

    Right now my main concern is to get the machine going again and I’m working to replace the existing EZ-G540 sockets with the new DB9 I bought today. Not an easy task for me….

    Please lets touch this subject again after I get the machine running and I have receive the 20 ft cable

    Much appreciated

    Nicolas


  16. #176
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    Just a few questions on your drawing, please see the attached JPG

    Item1: What these 2 symbols represent?
    Item2: What this symbol represent?
    Item3: What is DC – (cant read the rest)
    Item4: Never thought that 40g wire exist. Is it easy to find?

    Attached Thumbnails Attached Thumbnails G540 E-Stop-capture3-jpg  
    Nicolas


  17. #177
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    1 is the 24vdc relay coil.
    2 is the relay normally open contact
    3 is DC-ve or DC negative (Common)
    4 is a mistake, the new PDF shows 20g.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  18. #178
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    I know on DB9 socket, pins 1-5 are ground and I have to connect the resistor between pins 1 and 5.
    Pins 6 – 9 are for the motors. But do I have to connect the shield wire to any pin and if yes which pin?

    Back to your .PDF

    1. The white and orange cables coming from the motor, I will have to connect them to the +24VDC (white) and -24VDC (orange). Then why you repeat the same cables (white and orange) further to the left on your PDF and you say “tape off”. For me, after I connect the white/orange to 24VDC these 2 cables are gone. Is this correct?

    2. The NO relay contact on the incoming 120VAC black cable I will assume this relay exists inside the VS unit. Is this correct?

    3. After I do all this changes, I should be able to turn the spindle on/off from the switch on the VS unit plus adjust the speed with the knob on the VS unit. Is this correct?

    Nicolas


  19. #179
    Community Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Location
    Canada
    Posts
    23687
    Downloads
    0
    Uploads
    0

    Default

    Not to +24v and -24, you will blow the supply, if you notice one wire, make it Orange will connect to the Coil, not +24, the other, White will connect to the DC-ve.
    I assumed you had and intended setting up a 24v relay for the future control of the KB via Mach, this relay is supplied by you.
    Like John showed you in Post #107.
    The two lengths of Orange and White are not used in the LH side so they are taped up.
    Al.

    CNC, Mechatronics Integration and Custom Machine Design

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


  20. #180
    Member kolias's Avatar
    Join Date
    May 2009
    Location
    Canada
    Posts
    1003
    Downloads
    0
    Uploads
    0

    Default

    I understand, to my 24VDC relay, thats ok

    And yes in the future I will have the VS control thru Mach3

    How about the DB9 ground wire Al from my previous post, do I connect it or not and which pin?

    Nicolas


Page 9 of 13 FirstFirst ... 6789101112 ... 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

G540 E-Stop

G540 E-Stop

G540 E-Stop