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  1. #1
    Join Date
    May 2011
    Location
    North FL.
    Posts
    206

    23XL ISM PROBLEMS

    I HAVE A 23XL4142ED60 s/n0601 w/cutler hammer wye/delta starter and PIC II CONTROLS. Getting alarms 107,108 and 221 alarms. percentage over/under voltages and phase reversal. Voltages are steady fluctuating on display from 320 to 900 volts. Voltage inputs are steady @ ISM board. Checked connections and grounds, all ok. Is there a trouble shooting procedure for the ISM board or anything else i need to check? i couldn't find anything in the service bulletins. Thanks in advance HP

  2. #2
    Join Date
    Oct 2011
    Location
    La.
    Posts
    281
    I wish that there was a way to check them, but there is not. When the display starts to drift like that, the ISM is bad and needs replacement. That is the tell tale sign. As long as connections are tight and input voltage is steady, spend the money and replace.

  3. #3
    Yes, I'm sure you are need to replace the ISM.
    Can

  4. #4
    Join Date
    May 2011
    Location
    North FL.
    Posts
    206

    Thumbs up

    Thanks alot guys

  5. #5
    Join Date
    Apr 2010
    Location
    KY,OH,IN
    Posts
    37

    Thumbs up

    Quote Originally Posted by spinning wheel View Post
    I wish that there was a way to check them, but there is not. When the display starts to drift like that, the ISM is bad and needs replacement. That is the tell tale sign. As long as connections are tight and input voltage is steady, spend the money and replace.

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