ABB ACS 501 Installation & Start-Up Manual page 70

ACS 501 Installation & Start-up Manual
Figure 6-7 IGBT Schematic Diagram and Terminals
C1
B1
E1
E1
C2
B2
E2 E2
8. Set your multimeter to test diodes.
9. Test the IGBTs according to Table 6-5.
Table 6-5 IGBT Test Connections and Readings
Meter (+) Test Probe to
IGBT Terminal:
C
E
B
B
10. Repeat the tests in Step 9 for each IGBT. If your readings differ from the
values in Table 6-5, replace the IGBT.
Chapter 6 – Service and Maintenance
Meter (-) Test Probe to
IGBT Terminal:
E
C
C
E
Reading
Over
0.35
Over
Over
6-15