Rockwell Automation 2361 Armature SCR Replacement - Manual (Page 7)

Armature SCR Replacement (for 3000A 1395 Drives) 7
Figure 3
SCR Orientation (Positive)
Replacing the Heatpipe Assembly 1. Lift the assembly into the drive. Take care not to damage the
assembly.
2. Replace the two bolts to the top of the assembly, mounting
the Glastic to the drive.
3. Connect the three thermal switches into their ports and clip
the wires into the brackets.
4. Screw in the two bolts which connect the center heatpipe to
the incoming AC busbar. Torque to 25 lb-ft.
5. Screw in the two bolts which connect the assembly to the out-
put busbar. Torque to 25 lb-ft.
6. Mount the armature-pulse transformer board panel, securing
with the black latches on the left and right sides of the panel.
7. Connect all the SCR leads to the respective armature-pulse
transformer boards. (For SD3100 drives, connect all the SCR
leads to the pulse-gate amplifier boards).
8. Verify that the SCRs are connected to the proper boards. The
red leads should connect to terminals labeled R, and the white
leads should connect to terminals labeled W.