How to figure the amperage this 24vdc servo brake requires?


Results 1 to 4 of 4

Thread: How to figure the amperage this 24vdc servo brake requires?

  1. #1
    Member
    Join Date
    Feb 2004
    Location
    usa
    Posts
    70
    Downloads
    0
    Uploads
    0

    Default How to figure the amperage this 24vdc servo brake requires?

    I'm doing a retrofit on a router with a servo dynamics mts30m4-38 26lb/in 8.6A 3700 rpm 140v servo with a 24vdc 44lb/in d97-52721 brake on the z axis. I need to get a DC power supply for this brake and am wondering what would be sufficient amperage to release it- can I just put an ammeter in series with the brake and a 24v power supply to get a direct reading and then size the supply based on that or is there a better way?

    Similar Threads:
    See my stuff for sale at http://stores.ebay.com/Industrial-Tool-and-Machine-Works?refid=store


  2. #2
    Community Moderator Jim Dawson's Avatar
    Join Date
    Dec 2013
    Posts
    4304
    Downloads
    0
    Uploads
    0

    Default Re: How to figure the amperage this 24vdc servo brake requires?

    An ammeter as you suggest is the best way. Most of those brakes draw less than an amp.

    Jim Dawson
    Sandy, Oregon, USA


  3. #3
    Member
    Join Date
    Dec 2012
    Location
    Mexico
    Posts
    105
    Downloads
    0
    Uploads
    0

    Default Re: How to figure the amperage this 24vdc servo brake requires?

    Hello.

    If the motor specs don´t give you that figure your way of finding it is correct.

    Since you are talking about a DC brake calculating 24 by your ohms reading should give you a good approximation.

    If you decide to check the actual current just remember to start with the higher selections of the ammeter or you might damage it. And also remember not to change selection while powered.

    Another way would be to use a noncontact hall effect based ammeter but if you don´t already own one it isn´t worth buying for this measurement.

    Depending on the duty cycle of the brake and the time it will be connected remember to make your power supply be able to provide at least 1/4 more power to avoid overheaing. 1/2 more is very common.

    Best regards.

    Last edited by BBMNet; 05-21-2020 at 02:04 AM. Reason: addition


  4. #4
    Member Sterob's Avatar
    Join Date
    Jan 2007
    Location
    Australia
    Posts
    550
    Downloads
    0
    Uploads
    0

    Default Re: How to figure the amperage this 24vdc servo brake requires?

    Most DMM's will have a high DC Current range of around 10A so that will work as well.



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

How to figure the amperage this 24vdc servo brake requires?

How to figure the amperage this 24vdc servo brake requires?

How to figure the amperage this 24vdc servo brake requires?