What would cause the ATV320 series Drive to still trip on OBF if the DB resistor has been installed?
Issue:
ATV320 Drive is tripping on OBF after installing the DB resistor.
Product Line:
ATV320...... C version.
Environment:
All
Cause:
DC bus is still over charging on ramp down.
Resolution:
-Check to make sure the Jumper factory jumper is still installed between PO and PA+ ( C suffix version Drives only)
-Check to make sure the DB resistor is wired between PO and PB.
-Power down the drive, let the DC bus discharge then check the DB resistors value across PO and PB. (Drive needs to be powered OFF to do this test)
-Check the programming under FUN, rPt the bRA to make sure its set to NO.
-Verify the correct DB resistor size has been installed.
發佈於: 施耐德電機Taiwan
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