Eaton 9PX8KSP Manuel D'installation Et D'utilisation page 32

8. Communication
• Remote On/Off
Remote On/Off allows remote action of
Normally open
When contact changes from open to closed, the UPS is switched-on (or stays On).
When contact changes from closed to open, the UPS is switched-off (or stays Off).
On/Off control via
Remote On/Off is not Enabled as default setting and must be Enabled though menu.
• Remote Power Off
RPO is used to shutdown the UPS remotely. This feature can be used for shutting down the load and
the UPS by thermal relay, for instance in the event of room over temperature. When RPO is activated,
the UPS shuts down the output and all its power converters immediately. The UPS remains on to alarm
the fault.
The RPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must be
separated from any hazardous voltage circuits by reinforced insulation.
• The RPO must not be connected to any utility connected circuits. Reinforced insulation to the
utility is required. The RPO switch must have a minimum rating of 27 Vdc and 20 mA and be
a dedicated latching-type switch not tied into any other circuit. The RPO 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 Remote Power Off function is activated.
Leave the RPO connector installed in the RPO port on the UPS even if the RPO function is not
needed.
RPO connections:
Internal power supply
Normally closed
Terminal wire size rating is 0.32-4 mm
Suggested wire size is 0.82 mm
Page 32
button to switch On/Off the UPS.
button has priority over the remote control.
Normally open
(22-12 AWG).
2
(18 AWG).
2
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