Rockwell Automation 2361 Power Fuse Assembly Replacement - Manual (Page 3)

Power Fuse Assembly Replacement (for 3000A 1395 DC Drives) 3
Publication 2361-5.20 - May 1998
Preliminary Steps Before replacing the fuse assembly, shut off the drive power, wait
five minutes for the voltage to discharge, open the fuse bay door, and
remove all Lexan™ guards shielding the fuse assemblies.
Removing the Assembly 1. Using a voltmeter, test the voltage across the three phases, then
across the fuse assembly.
2. Remove the four nuts (and washers) from the front of the assem-
bly.
3. Remove the four bolts (and washers) from the rear of the assem-
bly.
Replacing the Fuses in the
Assembly (Optional) If you are installing a new fuse assembly, you can skip to the next
section. Otherwise, you can replace the individual fuses with the
following instructions.
1. Remove the two bolts on the fuse and pull out the fuse.
2. Align the new fuse into the assembly as shown in the diagram.
3. Fasten the two fuse mounting bolts and torque to 45 lb-ft.
4. Replace the other two fuses.
Important: If one fuse in the assembly is blown or weak, all three
fuses need to be replaced. Ensure that all three fuses in
the assembly are of the same type, size, and
manufacturer.
!
ATTENTION: If there is any voltage present, remove
the source of the voltage and check for voltages again
before proceeding to the next step.