User’s manual
15
UPS EVO TM
LOAD TESTING
UPS EVO TM indicates the output power percentage (respect to the nominal value) by the LCD
display, visualizing it on the second row of the display.
UPS EVO TM has the capability to accept an overload less than 110% for an indefinite time.
An overload between 110% and 150% (indicate by an intermittent acoustic alarm and
OVERLOAD
led flashing) respect to the nominal value, is accepted for about 20 seconds and
after UPS switches automatically to the BYPASS mode.
An overload higher than 150% is accepted for 10 cycles (about 200 ms), but after UPS EVO TM
switches automatically to the BYPASS mode.
Once the requested power is back within range, UPS EVO TM switches automatically to the LINE
mode.
WARNING
OVERLOAD led indicates overload condition. Make sure that the UPS never indicates
OVERLOAD.
Do not connect a load greater than rated value to the UPS (see POWER specifications in
the chapter TECHNICAL CHARACTERISTICS), as this may damage the unit. In this case
the warranty is void.
10. COMPUTER INTERFACE
UPS EVO TM is factory-equipped with a
RS-232 Interface
to be used to communicate with a
Personal Computer.
On the rear side of the UPS there is a 9-pin female connector (DB9).
On the DB9 connector there are the following signals:
•
RX
(pin 2)
•
TX
(pin 3)
•
GND
(pin 5)
To control with a Computer the UPS status (LINE or BATTERY mode functioning, LOW BATTERY
condition, UPS safety shot up conditions), check the measurements (mains voltage, output,
battery voltage, frequency, etc.) and program automatic start up and shout up times, is
available (optional) an interface kit (software and cable connection compatible with the most
used Operative System).
The signals of the RS232 Interface are
OPTOCOUPLED
.
