Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 382)

6-38 Component Definition and Maintenance
7000L-UM300I-EN-P – June 2013 7000 “C” Frame
Instructions for removing Chill Block assembly
1. Ensure all Power has been disconnected.
A T T E N T I O N A T T E N T I O N To prevent electrical shock, ensure the main
power has been disconnected before working on
a module. 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.
2. Remove SCR/SCGT(s) and circuit board(s) outlined in “SGCT
Replacement Procedure” and “Replacing the Silicon Controlled
Rectifier”.
A T T E N T I O N A T T E N T I O N The SGCT and SCR can be destroyed or
damaged by static charges. Personnel must be
properly grounded before removing circuit
boards from the PowerCage. Use of damaged
circuit boards may also damage related
components. A grounding wrist strap is
recommended for handling.
3. Detach coolant hoses from upper and lower manifolds. This
procedure is more clearly explained in “Detachment of Coolant
System from PowerCage Modules”.
4. Using a 14-mm socket with an extension of at least 40 cm, remove
the M8 bolt on the bottom flange of the chill block, which connects
the chill block assembly to the PowerCage.
5. If present, remove the M10 bolt at the top of the chill block using a
17-mm socket with an extension of at least 40 cm.
6. Slowly and carefully pull the assembly out of the PowerCage.
A T T E N T I O N A T T E N T I O N
The chill block assembly is heavy and it is
recommended that two people pull the assembly
out to avoid damage.
Chill Block Removal
and Replacement