2-14 Component Test Procedures
10.Verify that the voltage and resistance between the following points is
zero: J3 and X10: Pin 1, J7 and X11: Pin 1, and J11 and X12: Pin 1.
Refer to Table 2.G on page 2-16
below. If the Rectifying Module fails
any of these tests, replace it (See Removing the W Phase (Right-Side)
Rectifying Board, Rectifying Module and Output Power Module on
page 3-36).
Testing 400V AC Input, 590A, 650A or 730A, or 600V AC Input, 590A
Drives
Important: This procedure requires special equipment and training. Only
qualified and trained personnel should perform these
procedures.
1. Remove power from the drive. Refer to Removing Power from the
Drive on page 3-3.
2. Remove the covers from the power structure. Refer to Removing the
Covers from the Power Structure on page 3-13.
3. Visually inspect the pre-charging resistors. If the pre-charging resistors
are damaged:
A. Replace all Rectifying modules (See Removing the V Phase
(Middle) Rectifying Board, Rectifying Module and Output Power
Module on page 3-33 and Removing the W Phase (Right-Side)
Rectifying Board, Rectifying Module and Output Power Module on
page 3-36).
B. Check the capacitors, rectifier(s) and external connections for
short-circuits. (See Checking the DC Bus Capacitors on page 2-17
)
C. Check the Output Power modules (See Conducting Forward
and Reverse Biased Diode Tests for Major Power Components on
page 2-4).
4. On the first converter, verify that the plugs on the cable that connects
X13 on the Rectifying board to X2 on the ASIC board are properly
seated.
5. On the first converter, remove the X50 jumper from the Rectifying
board.
6. Verify that the plugs on the cable that connects X6 on the Rectifying
board of the first converter to X13 on the Rectifying board of the second
converter are properly seated.
7. Verify that the jumper at X50 on the Rectifying board of the second
converter is in place.
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