Toshiba G9000 SERIES Installation And Operation Manual page 53

B) Shutdown Procedure
If a total UPS shutdown is required, verify that the critical load is OFF.
a.) On the LCD panel, select "OPERATION" tab, and then press the "STOP OPERATION"
icon to proceed UPS shutdown. (Refer to Figure 2.3)
b.) Follow the "STOP OPERATION" guidance accordingly. During the procedure, UPS will
transfer the power feeding from the Inverter supply to the Bypass line supply.
c.) Both Converter and Inverter will remain energized until complete disconnection from all
power sources.
NOTE : When "REMOTE OPERATION MODE" is displayed on the LCD panel, the inverter start
operation can only be performed remotely. If local inverter stop operation is
required (at the UPS), select "LOCAL ONLY" or "REMOTE & LOCAL" in the
OPERATION MENU.
d.) If stopping both the Inverter and Converter is required, open the Battery Disconnect
circuit breaker manually in accordance with guidance.
WARNING : Verify the load is OFF if the next step is to be performed .
NOTE : Power to the critical load is supplied through the bypass line. Power to the
critical load will be lost after execution of the next step. The load will drop.
e.) If a dual source is feeding the UPS, open the External AC Input Circuit Breaker (user
supplied) manually.
f.) If turning off all power to the critical load is desired, open the External Bypass Input
Circuit Breaker (user supplied) manually.
CAUTION : In bypass mode, all UPS power terminals are still live. Lethal voltages are present.
De-energize all external sources of AC and DC power. Before removing the
covers, wait 5 minutes after de-energizing. Check no-voltage before handling
UPS. Be careful for the devices even when the UPS has been de-energized, still
internal devices may be
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