Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control User Manual
Page 43
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 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).