4200FA XT 80kVA Installation and Operation Manual
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6.12 Shutdown Procedure
When turning off the UPS, the following shutdown procedure should be used.
1) Move the RUN/STOP key switch of the UPS to STOP. Operation of the inverter halts.
Output power is now provided to the load via the bypass circuit. If a power failure occurs
in the commercial power source while in this state, the UPS will lose power and power to
the load will be interrupted. The battery charging circuit and chopper circuit will remain
active.
DANGER
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.
The LCD display shows the following message when in the Bypass operating mode:
- BYPASS OPERATION
OUTPUT VOLTAGE=208V
>CURRENT 100/100/100%
DATE (DAY) TIME
Move the MCCB power switch to Off.
Power is removed from the UPS and to any
attached loads
. All lamps are off and the LCD display shows the following message so long
as there is sufficient power to display it:
- OUTPUT SHUT DOWN -
OUTPUT VOLTAGE= 0V
CURRENT=LOW/LOW/LOW%
Emergency Power Off activation trips the MCCB and power is removed from the UPS and to
any connected loads (see Section 6.6 "EPO Function"). All LEDs are off and the LCD display
will show the following message:
- OUTPUT SHUT DOWN -
OUTPUT VOLTAGE= 0V
CURRENT=LOW/LOW/LOW%
Note:
Actual numerical values may
differ from these examples.
