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Remote On/Off
Remote On/Off allows remote control of the power ( ) button to switch the UPS on and off.
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).
Note: On/Off control using the power ( ) button has priority over the remote control.
Remote Power Off
RPO is used to disable the UPS remotely. This feature can be used for unpowering the load and shutting
down the UPS by an external event, for example when the room temperature is too high. When RPO
is activated, the UPS disables the output and all its power converters immediately. The UPS remains
on, to alarm the fault.
Important: The RPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must be
separated from any hazardous voltage circuits.
Notes: Important notes:
• The RPO must not be connected to any utility-connected circuits. 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.
Note: Leave the RPO jumper wire installed in the RPO port on the UPS if the RPO function is not needed.
RPO connections:
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6U Rack or Tower UPS RT8.0kVA and RT11.0VA and Maintenance Bypass Installation and User's Guide
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