Green Cell 1KVAS-EBP Mode D'emploi page 24

NOTE: Before installing the connectivity card , please remove the clip from the bay. Refer to the user's
manual of the appropriate cards.
EMERGENCY POWER-OFF
EPO is used to shut down the UPS from a distance. This feature can be used for shutting down the load and the UPS
by thermal relay, for instance in the event of room overtemperature. When EPO is activated, the UPS shuts down the
output and all its power converters immediately. The UPS remains on to alarm the fault.
There is also a front panel EPO option for user to initial EPO function by pressing the three switch on the front panel
together. When the three switches is pressed down at the same time, the EPO function will be active, UPS will shut
down and the buzzer will long beep. Pressing startup switches will not turn on the UPS unless the EPO function is
deactivated by pressing the three switches together and press off switches to return normal status.
WARNING
The EPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must be separated
from any hazardous voltage circuits by reinforced insulation.
CAUTION
• The EPO must not be connected to any utility connected circuits. Reinforced insulation to the utility
is required. The EPO switch must have a minimum rating of 24 Vdc and 20 mA and be a dedicated
latching-type switch not tied into another circuit. The EPO signal must remain active for at least 250 ms
for proper operation.
• To ensure the UPS stops supplying power to the load during any mode of operation, the input power
must be disconnected from the UPS when the emergency power-off function is activated.
NOTE For Europe, the emergency switch requirements are detailed in Harmonized document HD-384-48
S1, "Electrical Installation of the Buildings, Part 4: Protection for Safety Chapter 46: Isolation and Swit-
ching."
EPO Connections
Wire Function
EPO L1
L2
NOTE Leave the EPO connector installed onto the EPO port of the UPS even if the EPO function is not
needed.
See FIG. 19, 20 for EPO location. FIG. 23 shows a schematic of the EPO connector contacts.
24 / EN
FIG 22: Optional Connectivity Cards
Terminal Wire Size Rating
4–0.32 mm2 (12–22 AWG)
1 + POLARITY
2 - POLARITY
Abb. 23 EPO Connections
Suggested Wire Size
0.82 mm2 (18 AW)
EPO