ENGLISH
UPS EVO DSP MM RM
13
User’s manual
5.2.1 Input/Output Terminals
Figure 5 –
Input/Output Terminals
INPUT terminals
: to connect AC Input line.
OUTPUT terminals
: to connect OUTPUT line.
GROUND terminal
: to connect INPUT and OUTPUT GROUND cables.
5.2.2
EPO (Emergency Power Off)
EVO DSP MM RM models have the EPO (Emergency Power OFF) connector on the rear side, (see figure 6).
This permits to immediately switch the UPS Output OFF from a distance in case of emergency.
The UPS is supplied with EPO short-circuited terminals and in this case the product works normally.
If you want to use an external switch to turn OFF the UPS by EPO, then remove the short-circuit from the EPO
terminals and connect the switch to the EPO terminals as described in the figure 6.
EPO
1
2
REMOTE EPO
SWITCH
Figure 6 – EPO (Emergency Power OFF)
If the switch is CLOSED the UPS works normally; if, on the contrary, the switch becomes
OPEN then the UPS Output turns OFF immediately.
To switch the UPS Output ON again after an EPO, it is necessary to close again the EPO switch.
The EPO terminals do not need an external feeding Voltage and
are isolated from the dangerous voltages that
are present inside the UPS.
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