Figure 5-18 Initiate Shutdown; Figure 5-19 Ups Transfers To Bypass - Toshiba G2020 Series Installation And Operation Manual

D) Shut-down Procedure
If a total UPS shutdown is required, verify that the critical load is OFF.
CAUTION
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 press and hold STOP for 5 seconds. (Figure 5-18b)
a.
c.) The UPS transfers to Bypass. The Bypass contactor (52S) closes and the Inverter contactor (52C) opens.
(Figure 5-19)
d.) In Bypass, both of the Inverter and the Converter remain energized until complete disconnection from all power
sources.
WARNING
G2020 Series UPS Installation and Operation Manual – 94861-004
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.

Figure 5-18 Initiate Shutdown

Figure 5-19 UPS Transfers to Bypass

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.
b.
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