ENGLISH
UPS EVO DSP MM RM
5
User’s manual
4.1
NORMAL Mode
The UPS typically works in Normal mode: Input mains power is available and its amplitude is within specifications.
Please refer to figure 1.
After the filter has eliminated any high Frequency interference present on the mains, the AC Input line is rectified
and conditioned in the Rectifier block (AC/DC conversion); the continuous power now enters into the Inverter
block and is then reconverted into alternated power (DC/AC conversion), overcoming the Automatic Bypass and
feeding the load after an extra filtration. At the same time the UPS recharges the batteries through the Battery
Charger block.
Please refer to figure 2, which describe the UPS front panel.
The Normal mode is identified by:
•
Line
led is ON.
•
The graphic LCD panel shows the path of energy flow
during Normal mode.
4.2
BATTERY Mode
During operation in Normal mode, if the UPS finds the Mains OFF condition (due to a Blackout or
Overvoltage/Brownout), it then switches into Battery mode. In this case, the batteries supply the required Output
power thanks to the DC/AC conversion carried out by the Inverter. The UPS switches back to Normal mode a few
seconds after AC Input power is restored or Voltage comes back to internal specifications.
Please refer to figure 1.
The Battery mode is identified by:
•
Battery
led is ON.
•
The graphic LCD panel shows the path of energy flow
during Battery mode.
•
An acoustic signal every 4 seconds.
4.3
BYPASS Mode
In Bypass mode, the AC Input line is directly connected with the UPS outlets by an Automatic Bypass.
As indicated in figure 1, in Bypass mode the UPS recharges the batteries.
If you connect the AC Input line to the UPS and the Input line breaker on the rear is “ON”, the UPS will go to
Bypass mode.
The Bypass mode is an idle mode for the UPS: then by pressing
ON
button, the UPS turns ON completely,
activating the Inverter block.
When the UPS works in Bypass mode it can be considered as “not active”, since the Inverter block is not active.
The UPS is considered “active” when the Inverter block is ON (in Normal mode and in Battery mode).
Furthermore the UPS
switches automatically to Bypass mode as a consequence of accidental overload or
Inverter fault thus protecting the supplied devices.
Summary of Contents for EVO DSP MM 10.0
Page 2: ......
Page 32: ...ENGLISH User s manual 28 UPS EVO DSP MM RM...
Page 60: ...ITALIANO Manuale utente 56 UPS EVO DSP MM RM...
Page 61: ......
Page 62: ......
