How can I check a PowerFlex 755 Converter Side / Inverter Side Diodes?

This article gives a procedure for testing the diodes on the converter side (input) & inverter side (output) of a PowerFlex 755

Caution: Verify that all power has been removed and wires disconnected from the VFD

Caution: Verify that the DC Bus is fully discharged before talking readings.

Set your multimeter on the Diode Check Function and use the chart below to verify the diodes

Converter Side

Inverter Side

NOTE: The forward bias of the diodes can range in voltage drop but should be less than 1V