586,189 active members*
4,057 visitors online*
Register for free
Login

Thread: servo motor holding issue

Results 1 to 5 of 5
  1. 10-25-2013, 06:54 AM #1
    jaine
    jaine is offline Registered
    Join Date
    Feb 2012
    Posts
    9

    servo motor holding issue

    I'm using DC permanent magnet servo motor with carbon brush for the our Unison CNC tool grinder .
    im facing some problem on this motor . Motor is continuously rotating when i'm giving signal hold the motor . I'm confusing , problem with tacho ?motor ? or encoder ?
    please help me to fix this issue


    Click image for larger version.  Name: untitled.jpg  Views: 0  Size: 13.8 KB  ID: 205780
    Reply With Quote Reply With Quote
  2. 10-25-2013, 02:43 PM #2
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
    Join Date
    Dec 2003
    Posts
    24221
    What controller are you using?
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
    Reply With Quote Reply With Quote
  3. 11-24-2013, 02:20 AM #3
    POTOMAC ENG
    POTOMAC ENG is offline Registered
    Join Date
    Apr 2012
    Posts
    7
    Hi,
    It looks like you have a tach issue.if a scope could get you the answer for the encoder by checking your channels.
    Reply With Quote Reply With Quote
  4. 11-25-2013, 05:51 AM #4
    jaine
    jaine is offline Registered
    Join Date
    Feb 2012
    Posts
    9
    Yes Potomag, you said right , I have replaced the tacho , now it is working fine. thanks 4 the reply .
    Reply With Quote Reply With Quote
  5. 11-25-2013, 02:21 PM #5
    POTOMAC ENG
    POTOMAC ENG is offline Registered
    Join Date
    Apr 2012
    Posts
    7
    Hi,
    good for you...some times ripple on the tach could drive the machine on wrong direction.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. servo holding torque
    By marzetti in forum Servo Motors / Drives
    Replies: 1
    Last Post: 02-29-2012, 03:47 PM
  2. Servo holding torque
    By Instance in forum Servo Motors / Drives
    Replies: 3
    Last Post: 01-11-2012, 02:08 AM
  3. Servo motor? tool change issue
    By richpsr in forum Bridgeport / Hardinge Mills
    Replies: 0
    Last Post: 10-04-2011, 12:57 PM
  4. Servo Motor Issue??
    By Trebol in forum Fadal
    Replies: 1
    Last Post: 08-15-2011, 06:35 PM
  5. How do Servo's have holding torque ?
    By LUCKY13 in forum Servo Motors / Drives
    Replies: 4
    Last Post: 03-03-2009, 07:21 AM

Posting Permissions

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

Forum Rules