Eaton 9PX 5000 Installation And User Manual

Also see for 9PX: User guide Advanced user's guide Manual Advanced user's guide User guide

Page 30 5-6kVA US_EN6. Communication• Remote On/OffRemote On/Off allows remote action of button to switch On/Off the UPS.Normally openWhen 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.• Remote Power OffRPO is used to shutdown the UPS remotely. This feature can be used for shutting down the load andthe 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 alarmthe fault.The RPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit must beseparated from any hazardous voltage circuits by reinforced insulation.• The RPO must not be connected to any utility connected circuits. Reinforced insulation to theutility is required. The RPO switch must have a minimum rating of 27 Vdc and 20 mA and be adedicated latching-type switch not tied into any other circuit. The RPO signal must remain activefor at least 250 ms for proper operation.• To ensure the UPS stops supplying power to the load during any mode of operation, the inputpower 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 notneeded.RPO connections:Internal power supply External power supply1 3 1 3 1 31 3Normally closed Normally open Normally closed Normally openTerminal wire size rating is 0.32-4 mm2 (22-12 AWG).Suggested wire size is 0.82 mm2 (18 AWG).