Caution for Use
vii
The permissible voltage between the input electric cable of the UPS and
the ground is 250V AC.
If the voltage more than 250V AC is applied, the filter circuit of the input part may be
damaged.
The permissible input surge voltage of the UPS is 5kV peak (1.2
50µs).
However, if the model of the UPS is " -UC" and " -C" , it is 2kV peak (1.2
50µs).
If the surge voltage more than 5kV peak ("-UC" and "-C" are 2kV peak) is applied, the
filter circuit of the input part may be damaged.
The input voltage of the UPS is 160 to 288V AC.
When input voltage is different from the rated specification (400V AC etc.), install a
transformer at the outside of the UPS to convert voltage. If the voltage more than the
range of the input voltage is applied, the UPS may be damaged.
Pay attention to an input voltage.
This UPS can operate up to 288V AC. However, an input voltage of the general device is
200V AC ±10%. Therefore, if switching to the bypass operation when applying the
voltage of 220V AC to the UPS, the voltage exceeding specification is applied to the
connection device. Adjust the input voltage to the specification of connection device.
Do not apply single-line grounding on the output side.
Between the input and output of the UPS is not insulated. Therefore, do not apply
single-line grounding on the output side.
There is fear of becoming the cause of the trouble of connection device by noise or the
failure.
When connecting the UPS to the electrical power equipment with the earth
leakage breaker, select the earth leakage breaker not to trip due to current
leakage.
When connecting the UPS to the electrical power equipment with the earth leakage
breaker, select the earth leakage breaker in consideration of total number of current
leakage of the UPS plus current leakage of the connection device.
When connecting the UPS to a three-phase power supply system, be sure
to connect the grounding phase of the three-phase power supply system
to the electrode of a grounding side of the AC input of the UPS.
If connecting to an un-grounding power supply, there is fear of becoming the cause of
the malfunction.
Summary of Contents for M-UPS050AD2B
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