Component Test Procedures 2-19
Checking the Main Fan Motors
1. Remove power from the drive. Refer to Removing Power from the
Drive on page 3-3.
2. Remove the covers from the power structures. Refer to Removing the
Covers from the Power Structures on page 3-15.
3. On Power Structure #1, disconnect the left-hand fan motor from its
inverter.
4. Measure the resistance of the fan windings. If the resulting
measurements are not similar to those in Table 2.K
below, replace the
fan (See Removing the Main Fans on page 3-26
).
Table 2.K Correct Fan Measurements
5. Reconnect the left-hand fan motor to its inverter.
6. Repeat steps 3 and 4 for the right-hand fan motor.
7. Repeat steps 3 - 6 for Power Structure #2.
Connection Wires Resistance ± 5%
Black-Brown 60
Brown-Blue 26
Blue-Black 34
Resistance to ground .0L (Zero Load)
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