How to check capacitor of DC link for ATV71/61 drives and what are its values.
Perform this test only if the converter bridge and inverter bridge tests are good.
Test the capacitors using a multi-meter in ohmmeter mode between the terminals PC and PA. The resistance should begin at a low level and should increase progressively (as the capacitors charge). If this does not happen, the charging resistor or the capacitors are defective.
For more detail and capacitor values, Refer to attached document