ABB ACS 501 Installation & Start-Up Manual page 67

Chapter 6 – Service and Maintenance
6-12
Note: Terminal Block X50 disconnects from the Control Interface Card in
three whole sections. To do this, lift the interlocking tabs along the top
edge of the three X50 sections and carefully pry the sections straight
outward from the Control Interface Card. Mark the sections to
correspond with their order of assembly on the Control Interface Card.
4. Remove the screws fastening the left side of the Control Interface Card
to the ACS 501 chassis, disconnect the cable from X4 on the Motor
Control Card, and swing the Control Interface Card open to access the
Motor Control Card.
5. Set your multimeter to test diodes.
6. Measure according to Table 6-3 and Table 6-4. Table 6-3 represents
meter connections to Terminal Blocks X2 and X3.
Table 6-3 Meter Connections to Terminal Blocks X2 and X3
Meter (+) Test Probe
X3:U2
X3:U2
X3:V2
X3:V2
X3:W2
X3:w2
X2:(+)
X2:(-)
X2:(+)
X2:(-)
X2:(+)
X2:(-)
Table 6-4 represents meter connections to IGBTs on the Motor Control Card.
For IGBT locations, refer to Figure 6-6.
Meter (-) Test Probe
X2:(+)
X2:(-)
X2:(+)
X2:(-)
X2:(+)
X2:(-)
X3:U2
X3:U2
X3:V2
X3:V2
X3:W2
X3:W2
ACS 501 Installation & Start-up Manual
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