Toshiba G9000 SERIES Installation And Operation Manual page 58

B) Stop Operation
If a total UPS shutdown is required, verify that the critical load is OFF.
CAUTION
WARNING
!
NOTE
Select "OPERATION" tab, and then press the "STOP OPERATION" button to initiate
a)
transfer process. (Refer to Figure 4-5 & Figure 4-3).
Follow the "STOP OPERATION" guidance accordingly. During the procedure, UPS will
b)
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.
d) If stopping both the Inverter and Converter is required, open the Battery Disconnect
circuit breaker manually in accordance with guidance.
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.
50
Verify the load is OFF if the next step is to be performed.
Power to the load has been supplied through the bypass line. Power to
load will be lost after execution of the next step. The load will drop.
In bypass mode, all UPS power terminals are still alive. Lethal voltages
are present. De-energize all external sources of AC and DC power.
Before removing the covers, wait 5 minutes after de-energizing.
Ensure that there is no-voltage present before handling UPS. Be
careful of the devices even when all external sources of power have
been removed since internal circuitry may still be energized.
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.
G9000 1000-2000kVA Installation and Operation Manual 91469-007