Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 399)

Component Definition and Maintenance 6-55
7000 “C” Frame 7000L-UM300I-EN-P – June 2013
DC Link Reactor
The DC Link maintains a ripple-free current between the rectifier
and the inverter. Thermal levels in the DC Link are achieved
through cooling water.
The DC Link Reactor does not normally require service. To replace
the DC Link, refer to figure 6.44 and complete the following steps.
1. Ensure the MV source power to the drive is locked out.
2. Drain the coolant from the drive system.
3. Lock out the control power
4. Access the DC Link cabinet and remove the cooling connections
to the DC Link.
5. Disconnect the 4 power connections to the DC Link. Remember
to note the location for each of the cables on the DC Link.
6. Remove the hardware that secures the DC Link to the ground
channels.
7. Remove the DC Link frame ground connection.
8. Using a lift truck, remove the DC Link from the cabinet.
9. Install the replacement in the reverse order.
Liquid-Cooled
DC Link Reactor
Cooling Pipes
Figure 6.44 – DC Link Reactor