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Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control User Manual

Page 43

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Rockwell Automation Publication 7000-UM202B-EN-P - June 2014

43

Component Definition and Maintenance

Chapter 3

Replacing Output Grounding Network Capacitors

PowerFlex 7000 18 Pulse and select AFE drives come with an installed grounding
network.

The number of capacitors varies depending on the system voltage.

1.

Isolate and lock out all power to the drive.

2.

Note the position of the leads.

3.

Remove the 6.4 mm (¼ in.) hardware and disconnect the leads connected
to the terminals.

4.

Four brackets secure the capacitor. Loosen the four screws at the base of
the brackets and lift the capacitor out.

5.

Place the new capacitor and tighten the screws securely.

6.

Replace the ring lugs and 6.4 mm (¼ in.) hardware (see

Figure 31

).

Figure 32 - Capacitor in grounding network

ATTENTION: To prevent electrical shock, disconnect the main power before
working on the drive. Verify that all circuits are voltage-free using a hot stick or
appropriate voltage-measuring device. Failure to do so may result in injury or
death.

IMPORTANT

The maximum torque for the capacitor terminal is 3.4 N•m (30 lb•in).