General question
Close
Login to Your Account
Likes Likes:  0
Results 1 to 2 of 2
  1. #1
    Join Date
    Feb 2020
    Country
    UNITED KINGDOM
    Posts
    1
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    0

    Default General question

    Hi all,


    I have a Hardinge CHNC1 with a 810t control, I had an issue with the machine in that it would shut down imediatly the main breakers kicked in?

    After a lot of diagnosing it came down to a faulty turret encoder (two burnt out components on the encoder board)
    this caused a direct short (24 volts) on the interface board tripped relay K2 and shutting the machine down,

    Once I removed the encoder relay the machine then powered up, but while diagnosing the fault I lost all the parameters

    I have re-loaded the parameters (without the encoder in place) successfully just to see if there were any other issues, and the machine is fine all accept obviously the turret encoder, drives/axis/spindle etc all good,

    I loaded the parameters without the turret encoder in place while waiting for the new encoder to arrive, I have now fitted the encoder but I am getting an alarm "cannot find position"

    My question is: does the turret encoder have to be in place when loading the parameters? is it possible the encoder is not seen by the plc if not installed while parameters are loaded?

    Thanks for any help,

    Allen.

  2. #2
    Join Date
    Aug 2019
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    118
    Post Thanks / Like
    Likes (Given)
    15
    Likes (Received)
    17

    Default

    I don't know your system specifically, but in general parameters are there so they can be loaded during each boot operation. In other words, the missing encoder should not be a problem. I would think there may be a process you need to run to synch/calibrate the new encoder to the plc?


Tags for this Thread

Bookmarks

Posting Permissions

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