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Page 29
9PX 1-3 KVA US_EN
ENGLISH
4.2 UPS remote control functions
Programmable Signal Inputs
The 9PX incorporates 3 programmable signal inputs: one Remote Power Off (RPO) input terminal, one
RemoteOn/Off(ROO)inputterminal,oneRS-232input(pin-4).Signalinputscanbecongured
(seeSettings>Comsettings>SignalInputonpage15)tohaveoneofthefollowingfunctions:
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
alarm
Active input generates an alarm “building alarm”
On generator Active input disables synchronization and transfers to bypass
Remote
shutdown
ActiveinputturnsUPSoutput(oroutletgroups)offafterauserdenedshutdown
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).
Seebelow2examplesofcongurationwithRPOterminalusedasRPOfunctionandROOterminaluseas
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 Comments
Connector type Terminal, 14 AWG Maximum wires
Externalbreakerspecication 60 V DC/30 V AC 20 mA max
RPO
11
ROO
4. Communication
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