Toshiba T90S3S08KS6XSN Manual page 85

B) Shut-down Procedure
If a total UPS shutdown is required, verify that the critical load is OFF.
a.) Press the "START/STOP" icon from the Main Menu or the Operation Menu on the LCD.
b.) On the LCD panel, press "START/STOP" icon, and then select "SHUTDOWN GUIDANCE"
icon. (Refer to Figure 2.3)
c.) Follow the "SHUTDOWN GUIDANCE" until Inverter stops. The UPS will simultaneously
transfer to Bypass operation.
d.) In general, only the Inverter will be stopped and the Converter will remain energized to
charge the batteries.
!
NOTE
e.) If stopping both the Inverter and Converter is required, open the Battery Disconnect circuit
breaker (CB2) manually in accordance with guidance.
CAUTION
f.) If a dual source is feeding the UPS, open the External AC Input Circuit Breaker (user
supplied) manually.
g.) If turning off all power to the critical load is desired, open the External Bypass Input Circuit
Breaker (user supplied) manually.
WARNING
48
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.
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. Check no-voltage before handling
UPS. Be careful of the devices even when the UPS has been de-energized, since
internal devices may be energized.
G9000 Installation and Operation Manual