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    How do you perform a diode static check on the Flex58 drives?

    Issue:
    How do you perform a diode static check on the Flex58 drives?

    Product Line:
    Flex58 or ATV58

    Environment:
    All

    Cause:
    Checking diodes to see if they are shorted.

    Resolution:
    Before starting, make sure you turn off ALL POWER on the drive.  Wait 15 mins, so that the DC bus has time to discharge below 24vdc on PA+ and PC-.
    Using a multi-meter with a diode checker , measure between the DC Bus terminals PA/+ to L1-L2-L3 , then reverse the meter leads and read again between PA/+ to L1-L2-L3.  In one direction, you should read 0.30 to 0.60, and in the reverse direction you should read OL.  Repeat this measurement with the blue wire (PC/-) on the J18 connector or on the (PC-) terminal.  If "shorted circuit" is read in any of the readings, repair or replace the drive is recommended. 
     

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