TOSHIBA
6.0 Operating the UPS
6.4 Shutdown Procedure
When turning off the UPS, the following shutdown procedure should be used:
1) Move the unit's UPS STOP/RUN switch, located on the front panel, to STOP.
Operation of the UPS unit's inverter stops. Output power is now provided to
the load through the unit's bypass circuit. While in this mode if a power failure
occurs in the commercial power source, then the UPS will lose power and
power to the load device will be interrupted. The UPS unit's battery charging
circuit and chopper circuit remain activated.
Do not touch the UPS terminals even though the
operation switch has been moved to the STOP
position. The UPS may be supplying power through the bypass circuit.
2) Move the MCCB switch, located on the rear panel, to OFF. Output power to the load
is removed.
3) Switch off power at the UPS input distribution panel.
6.5 Restart Procedures
6.5.1 Restart After Non-Fatal Fault
When restarting the unit, after a Non-Fatal Fault (see non-fatal faults
Section 7.1) has occurred and the unit is in bypass mode, use the following
"warm" start-up procedure:
1) Move the UPS STOP/RUN switch, located on the front panel, to STOP.
2) Move the UPS STOP/RUN switch to RUN.
3) If unit does not restart then use the "cold start" procedures in Section 6.5.2
6.5.2 Restart After Fatal Fault
When restarting the unit, after a fatal fault (see Fatal Faults Section 7.2) has
occurred, use the following "cold start" start-up procedure:
1) Move the UPS STOP/RUN switch, located on the front panel, to STOP.
2) Move the MCCB switch, located on the rear panel, to OFF.
3) Check the #1 position green lamp in the OUTPUT/BATTERY level meter
(see Front Panel Layout Section 6.13) and then:
a) If the green #1 lamp is flashing do not
reapply power (main dc bus capacitors
are still charged).
b) If the green #1 lamp continues to flash
for longer than 2 minutes do not reapply
power (main dc bus capacitors discharge path fuse is blown). Contact
your Toshiba service representative.
c) If the green #1 lamp is extinguished power may be re-applied (main dc
bus capacitors have discharged) in the following steps:
1) Move the MCCB switch to ON. Output power is now provided to the
load through the unit's bypass circuit. The unit's battery charging
circuit and chopper circuit are now activated.
2) Move the UPS STOP/RUN switch to RUN. Operation of the unit's
inverter begins and output power is available.
6 - 2
CAUTION
CAUTION
DANGER
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