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Rockwell Automation Publication 20Y-TG002C-EN-P - April 2017
Chapter 3
Component Test Procedures
Remove AFE Protective Barriers on page 44
.
3. Disconnect any drives that are connected to the DC bus from the DC
bus, or remove the DC bus fuses from the AFE.
4. Conduct forward and reverse biased diode tests on the power structure.
Figure 8 - Measurement Points for Forward and Reverse Diode Tests
Table 2 - Forward Biased Diode Tests on Power Structure
Front View
(AFE in IP21 Rittal Enclosure shown with doors removed)
Front View
(AFE in IP20 2500 MCC Style Enclosure shown with doors removed)
1
1
2
2
Meter Leads
)
Nominal Meter Reading
+
-
DC-
U/T1
1
Value gradually rises to about 0.5V
(1)
(1) The actual voltage reading can vary depending upon your equipment. If your readings are not near 0.5V, verify that
the actual voltage that is measured is consistent for the power structure.
DC-
V/T2
DC-
W/T3
U/T1
DC+
2
V/T2
DC+
W/T3
DC+