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TOSHIBA
Starting on DC Power
If no AC power source is available, the UPS can be started from
battery power. The length of UPS operation time on battery power
depends on the number of attached battery modules and the amount
of load the UPS is supporting. To start the UPS from battery power
follow these steps:
Step 1: Make sure the RUN/STOP switch is in the STOP position
(figure 1, page 9).
Step 2: Press the "Startup on Battery" button. The UPS will beep
indicating that AC power is not available and the Startup on Battery
mode has been activated.
Step 3: Switch the RUN/STOP switch to the RUN position. This
must be done within 5 seconds of the Startup on Battery mode
activation for the unit to startup using batteries.
Once the unit has started, the "On Line" LED will light, indicating that
the inverter is running and power is available at the output
receptacles. If the RUN/STOP switch is not switched to the RUN
position within those 5 seconds, the unit will return to shutdown
mode.
Stopping the UPS
There are two ways of turning the UPS off: switching from on line to
bypass mode, or completely shutting down.
Option 1
The first option is to place the UPS into bypass mode. Bypass mode
means that if there is AC power available, the UPS will route power
directly from the input source to the connected loads without any
conditioning. The UPS inverter is off during this state, but the
attached loads do not lose power during the transition. To place the
UPS into bypass mode, switch the RUN/STOP switch to the STOP
position. This mode is most often used manually during
maintenance and programming operations or automatically upon the
occurrence of an internal UPS fault. (For more information
concerning bypass mode see appendix E.)
Option 2
The other option is to turn the UPS off completely. This means that
in addition to the UPS's inverter shutting down, all power will be
stopped to any equipment attached to the UPS. To shut the UPS
down completely switch the RUN/STOP switch to the STOP position.
Then switch the input breaker off (figure 1, page 9). Once the input
breaker has been switched off, all the LEDs should turn off. (If the
RUN/STOP switch is in the RUN position when the input breaker is
switched off, the unit will switch to battery backup mode. The unit
will continue to run for as long as the available battery reserves can
support the connected loads.)
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