Removing And Remounting A Power Cell - YASKAWA FSDrive-MV1S Instructions Manual

Removing and Remounting a Power Cell

Use the following procedure to remove a power cell.
Refer to Fig. 8.4 and Fig. 8.5 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.
2 Output
1 Input terminals
Wires
Power cell
140 A or less
Cell mounting
beam
<140 A Cell Example>
Wiring duct
3 Optical fiber
2
4
Power cell fixture and screws
Fig 8.4 Power Cell Wiring and Fixing Screw Locations
Output terminals
Power cell
200 A or more
Wires
<200 A Cell Example>
Maintenance and Inspection
3 Optical fiber
cable
Connection bar
between cells
Input
terminals
Cell mounting
beam
4 Power cell fixture
and screws
13
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