• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 303 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Dead SMB on bq78PL114S12

J.Guerrero
Prodigy 20 points
Other Parts Discussed in Thread: BQ76PL102, BQWIZARD

I have encountered a problem that I cannot seem to find an explanation or solution for.  I have a 12S pack using the bq78PL114S12( along with 3 bq76PL102 ).  The SMB has the exact same circuitry as the EVM( ESD protection ).  The previous day, I spent communicating to the pack through the bqWizard throughout the whole day; changing settings, calibrating and monitoring a discharge cycle through the use of the polling feature in the bqWizard.  Before leaving for the day, I did a Safe Disconnect through the bqWizard and then physically disconnected the connection.  The following day, I reconnect the connection, start the bqWizard software and it returns with the error message that it is unable to connect to the pack. 

 

Anyone have any ideas or suggestions?

  • 0
    Prodigy 20 points

    I found a post with a similar problem

    Posted by

    on 03-09-2010 4:29 AM

    And it appears that I need to insure that there is enough of a voltage difference between PUV and EUV so that should the pack reach PUV, it still has the ability to use the SMB.