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Maintenance and Inspection
8-
13
Removing and Remounting a Power Cell
Use the following procedure to remove a power cell.
Refer to
and
for the part names.
1. Disconnect three-phase input wires (copper bar or wires) from the input terminals L1, L2, and L3.
2. Disconnect wires from the output terminals T1 and T2.
3. Disconnect the optical fiber cable from the cell control board (CCB).
(Take special care not to damage the board when removing the power cell.)
4. Remove the cell fixing screws on the front bottom of the power cell.
5. Extend the lifter platform to place under the power cell. Fix the power cell on the platform.
6. Lift the power cell out of the panel.
The casters mounted on the bottom of power cell frame can obstruct the power cell from coming out. Pull
out the power cell slightly. If the power cell is pulled out too strongly, it will fall out, and may result in
injury.
7. When the entire power cell is placed on the lifter platform, fix the power cell on the platform using a belt,
etc. to prevent the power cell from falling off.
8. Return the extended platform to its original position, lower the platform together with the power cell, and
transport the power cell.
Remount the power cell in the reverse order of removal after inspection and replacement.
Fig 8.4 Power Cell Wiring and Fixing Screw Locations
<140 A Cell Example>
<200 A Cell Example>
Input terminals
Output
Power cell
140 A or less
Wiring duct
Optical fiber
Wires
Wires
Input
terminals
Output terminals
Power cell
200 A or more
Connection bar
between cells
Power cell fixture
and screws
Cell mounting
beam
Power cell fixture and screws
Optical fiber
cable
Cell mounting
beam
2
4
3
1
2
3
4