5 Inspection
24
5.2
Caution and Measures for the Rolling Blackouts
Important
When using a generator temporarily during the rolling blackouts, use a
generator satisfying the following specification.
If connecting a generator not satisfying the following specification to the input part of
the UPS, there is a possibility of becoming the cause of the malfunction or damage of
the UPS.
Voltage variation: 85 to 138 VAC
Frequency variation: within rated frequency ± 5% (1Hz/sec.)
Voltage waveform distortion: within 5%
Voltage zero-cross condition: Zero-cross must not occur twice or more in 1
cycle.
Operation before the rolling blackouts
Turn off the connection device and the UPS before performing the rolling blackouts
(Note).
1.
Turn off the connection device.
2.
Press the RUN/STOP switch on the front of the UPS for approximately 1 second.
The buzzer will sound if the switch is received.
3.
An output stops.
The RUN LED (green) on the front of the UPS blinks slowly (in the cycles of
approximately 1.6 sec.).
If the rolling blackouts are performed without turning off the UPS, the UPS will be in the
same state as an ordinary power failure. Electric power is supplied to the connection
device from the internal battery of the UPS until the rolling blackouts are completed.
Electric power is not supplied to the connection device until an input power supply
returns after the electric discharge is completed.
Note) The rolling blackouts mean the blackouts to which the date and hour, such as
the safety inspection of electricity, is informed beforehand.
Operation after the rolling blackouts
1.
Confirm that the UPS is connected to an input power supply and the connection
device.
The RUN LED (green) on the front of the UPS blinks slowly (in the cycles of
approximately 1.6 sec.).
2.
Press the RUN/STOP switch on the front of the UPS for approximately 1 second.
The buzzer will sound if the switch is received.
3.
AC voltage is outputted from the output terminal block, and the RUN LED (green) on
the front of the UPS lights up.
4.
Turn on the connection device if the normal operation is started.
For details, refer to Chapter 4.1
“
Turning on the UPS
”
.
When a warning beep sounds:
Refer to Chapter 6.1
“
If a Warning Beep Sounds
”
.
Summary of Contents for M-UPS050AD1B
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