172 YASKAWA ELECTRIC EZZ010928 FSDrive-MV1000 Instructions
6.6 Replacing Power Cells
6.6 Replacing Power Cells
◆ Power Cell Replacement Procedure
The general steps are given here. For details, contact your Yaskawa representative or the nearest Yaskawa sales office.
WARNING! Electrical Shock Hazard. Never connect or disconnect wiring, remove connectors or option cards, while the power is
on. Failure to comply could result in death or serious injury. Disconnect the power for the main circuit and controls to
the drive and check that there is no residual charge in it before starting servicing.
WARNING! Electrical Shock Hazard. Do not allow unqualified personnel to perform work on the drive. Failure to comply could result
in death or serious injury. The drive should be installed, wired, repaired, inspected, and have its parts replaced, by
someone with a thorough knowledge of drive installation, adjustment and repair.
NOTICE: Equipment Hazard. Observe proper electrostatic discharge procedures (ESD) when handling the drive and circuit boards.
Incorrect handling could result in ESD damage to the drive circuitry.
■ Removal
Replace Power Cells by following the procedure below.
1.
Disconnect the optical fiber cable from the cell control board (CCB). Take care not to damage the cable when
pulling out the Power Cell.
Figure 6. 4
Figure 6.4 Disconnecting the Power Cell Wiring
2. Disconnect the three phase wiring from the input terminals (L1, L2, L3), and the wiring (copper bars or wires)
from the output terminals (T1, T2).
3. Pull the Power Cell out about 100 mm toward front.
4. Fit the lifter platform at that position to place it under the Power Cell.
5. Draw the Power Cell out by pulling on the handle on its front face.
6. Shift the whole Power Cell onto the platform of the dedicated lifter.
CAUTION! Do not pull too strongly when pulling the Power Cell out.
Otherwise, the Power Cell may fly out and your hands or fingers could get caught.
Figure 6. 5
Figure 6.5 Drawing Out a Power Cell
A – Optical fiber cable C – Input terminals (L1, L2, L3)
B – Output terminals (T1, T2)
A – Drive D – Fix the lifter at the appropriate height for
the Power Cell.
B – Power Cells E – Pull the Power Cell out about 100 mm
toward front.
C–Lifter
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