Tripp Lite 9PX11KTF11M Eaton 9PX UPS 700-3000 VA 2U Owners Manual - Page 29

ENGLISH 4. Communication 4.2 UPS remote control functions Programmable Signal Inputs The 9PX incorporates 3 programmable signal inputs: one Remote Power Off (RPO) input terminal, one Remote On/Off (ROO) input terminal, one RS-232 input (pin-4). Signal inputs can be configured (see Settings > Com settings > Signal Input on page 15) to have one of the following functions: Function Description No No function, please choose a function if you want to use input signal RPO Remote Power Off (RPO) is used to shutdown the UPS remotely ROO Remote On/Off allows remote action of button to switch On/Off the UPS. (Cold start is prohibited while using the ROO function) Forced bypass If feeding the load the unit goes to bypass operation and stays there regardless of the bypass state until the input is inactivated Building Active input generates an alarm "building alarm" alarm On generator Active input disables synchronization and transfers to bypass Remote shutdown Active input turns UPS output (or outlet groups) off after a user defined shutdown delay but keeps on charging batteries according to a selected charging scheme, inactive input does not abort shutdown countdown. Depending on the "Restart" parameter (see Settings > Com Settings > Shutdown commands on page 16) the unit may startup automatically. Warning Signal inputs have no function by default please choose a function through the LCD (Settings > Com settings > Input signals on page 15). See below 2 examples of configuration with RPO terminal used as RPO function and ROO terminal use as ROO function: • Remote Power Off (RPO) 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 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: RPO Connector type External breaker specification Comments Terminal, 14 AWG Maximum wires 60 V DC/30 V AC 20 mA max ROO 11 RPO 9PX 1-3 KVA US_EN Page 29