6
turn power OFF.
Repeat steps 1
∼∼∼∼
3 to remove all power from the inverter.
Then, verify all
connections. Contact Toshiba International Corporation for assistance if the problem persists.
1.2
Removal
Removal of the option board from a TOSVERT-130 G3 inverter should only be
performed by a qualified technician familiar with the maintenance and operation of the G3. In
order to protect the option board connector’s reliability, do not repeatedly connect and disconnect
the option board. Use the following procedure if it becomes necessary to remove the
option board from the inverter.
CAUTION!
Do not remove the option board while power is applied to the inverter.
Removing the option board with power applied may damage the inverter.
1.
CAUTION!
Verify that all input power sources to the inverter have been turned
OFF and are locked and tagged out.
2.
DANGER!
Wait at least 5 minutes for the inverter’s electrolytic capacitors
to discharge before proceeding to step 3.
Do not touch any internal parts with power
applied to the inverter, or for at least 5 minutes after power to the inverter has been
removed. A hazard exists temporarily for electrical shock even if the source power has
been removed.
3.
Remove the inverter’s cover (open the door on units with hinged doors). Verify that the
CHARGE LED has gone out before continuing the removal process.
4. Loosen the 4 screws attaching the G3’s operation panel support bracket to the control board
support bracket and remove the operation panel and support bracket as a unit (refer to Figure
3).
5.
CAUTION!
The option board is a static-sensitive device. Standard
electrostatic-sensitive component handling precautions should be observed. Release the 4
corners of the option board from the standoffs by pressing down on the standoff locking tabs
with a small flat-headed screwdriver. Be careful to not apply any abnormal stress to the option
board while performing this, as this may damage the option board or control board connectors.
6. Remove the option board from the inverter.
7. Disconnect the communications cable from the option board connector (P3), and pull the cable
out through the access holes at the bottom of the inverter.
8. Carefully re-install the operation panel and support bracket and tighten the 4 screws that attach
the operation panel support bracket to the control board support bracket.
