Replacing Power Cells; Replacing Power Cells; Power Cell Replacement Procedure - YASKAWA FSDrive-MV1000 Series Instructions For Use Manual

6.6 Replacing Power Cells

6.6

Replacing Power Cells

u Power Cell Replacement Procedure
The general steps are given here. For details, contact your Yaskawa representative or the nearest Yaskawa sales office.
DANGER! Electrical Shock Hazard. Do not connect or disconnect wiring or service equipment while the power is on. Failure to
comply will result in serious injury or death. Before servicing, disconnect all power to the equipment. The internal
capacitor and the Power Cell exterior surface and interior remain charged even after the medium-voltage power supply
is turned off. Verify the CHARGE indicator LED is extinguished before servicing and remove control power. There may
be multiple sources of power and control power may be present although the CHARGE indicator LED is extinguished. To
prevent electric shock, wait for at least the time specified on the warning label after all indicators are OFF, and then
measure for unsafe voltages to confirm the drive has reached a safe level before servicing.
WARNING! Electrical Shock Hazard. Do not allow unqualified personnel to perform work on the drive. Failure to comply could result
in serious injury or death. The drive should be installed, wired, repaired, inspected, or serviced, by personnel with a
thorough knowledge of medium-voltage drive installation, adjustment and repair.
NOTICE: Equipment Hazard. Observe proper electrostatic discharge procedures (ESD) when handling the drive or circuit boards.
Failure to comply could result in ESD damage to the drive circuitry.
Removal
n
Replace Power Cells using the following the procedure:
1.
Disconnect the fiber optic cable from the cell control board (CCB). Take care not to damage the cable when
pulling out the Power Cell.
Figure 6.4
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.
Slowly pull the handle on the front face of the Power Cell and to remove it from the drive.
6.
Shift the entire Power Cell onto the platform of the dedicated lifter.
CAUTION! Pinching Hazard. Carefully and slowly pull out the Power cell when servicing. Failure to comply may result in injury to
hands or fingers.
204
＜Power Cell Placed Horizontally＞
C
A – Fiber optic cable
B – Output terminals (T1, T2)
Figure 6.4 Disconnecting the Power Cell Wiring
＜Power Cell Placed Vertically＞
A B
A
B
C
C – Input terminals (L1, L2, L3)
YASKAWA ELECTRIC TOEP C710687 02B FSDrive-MV1000 Instructions
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