Step 2. replacing the module door – Rockwell Automation 2364, 2364F Regenerative DC Bus Supply Unit (RGU) Upgrade Kit User Manual
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Regenerative DC Bus Supply Unit (RGU) Upgrade Kit
Step 2. Replacing the
Module Door
1. Unplug or remove all of the connections made between the boards
mounted on the module door and the rest of the RGU in order to remove 
the door assembly from the module. This includes the main control 
board, gate driver board and the isolator board. Note the connections 
before removing them so that they can be replaced correctly.
2. Swing the door assembly open to the right and lift up on the door to
remove it from the module frame.
3. Carefully unpack the new door from the upgrade kit. Note that the
power supply, harness and relay assembly, and isolator board are 
already attached to the new door. See Figure 6.
Figure 6
4. Remove the old main control board (P/N 185557) from the old door
assembly and discard the board, retaining the insulator sheet and the 
mounting plate for use with the new main control board.
5. Remove and retain the two burden resistors from the screw terminal
blocks located on the right hand side of the old isolator board on the old 
door assembly.
6. Carefully remove the gate driver board from the old door assembly by
turning the slotted plastic screw heads on the plastic standoffs holding 
the board a quarter turn. Transfer the gate driver board to the new door. 
The rest of the old door assembly with the old isolator board (P/N 
170589) can be discarded.
7. Unpack the new main control board from the kit and install it on the
mounting plate saved from step 4 above. Mount this assembly onto the 
new door.
New door with power 
supply, harness and 
relay board