Eaton 9PX6K-L, Advanced User'S Manual, Page: 28 / 50

22 Eaton 9PX Lithium-Ion User Guide DPD-9PX2206—Rev 01
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IMPORTANT
The relay output contacts must not be connected to any utility connected circuits. Reinforced insulation to the
utility is required. The relay output contacts have a maximum rating of 250 Vac/5A.
44..22 U UP PS S R Reem moottee C Coonnttrrooll FFuunnccttiioonnss
R Reem moottee O ON N//O Offff
Figure 13. Normally Open ROO
• Remote On/Off allows remote action of button to switch On/Off the UPS.
• 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 button has priority over the remote control.
R Reem moottee P Poow weerr O Offff
RPO is used to shutdown the UPS remotely when the contact is open. 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:
UPS Remote Control Functions