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881627-002 Edition 3
4. Operation
Low-battery warning
•
The
and
indicator illuminates.
•
The audio alarm beeps every three seconds.
•
The remaining battery power is low. Shut down all applications on the connected equipment because
automatic UPS shutdown is imminent.
End of battery backup time
•
The LCD displays "End of backup time."
•
The LEDs are no longer illuminated.
•
The audio alarms stops.
4.5 Return of AC input power
Following an outage, the UPS restarts automatically when AC input power returns (unless the restart
function is disabled) and the load is supplied again.
4.6 UPS remote control functions
The UPS offers a choice between two remote control functions.
•
ROO
: Remote ON/OFF allows remote action of the button to shut down the UPS.
•
RPO
: Remote Power OFF allows a remote contact to be used to disconnect all the equipment connected
to the UPS. Restarting the UPS requires manual intervention.
These functions are obtained by opening a contact connected between the appropriate connector pins
(4)
on
the rear panel of the UPS (see the following figure).
4
Remote control connection and test
1.
Verify that the UPS is off and disconnected from the AC input source.
2.
Remove connector
4
.
3.
Connect a normally closed volt-free contact (60 Vdc/30 Vac max., 20 mA max., 0.75 mm
2
[18 AWG] cable
cross-section) between the two connector pins
4
.
4
Contact open: UPS shutdown.
Contact closed: UPS start up (UPS connected to AC power and AC power is available).
NOTE:
The local on/off control using the button overrides the remote-control function.
4
Contact open: UPS shutdown, LED illuminates.
To return to normal operation, deactivate the remote external contact and restart
the UPS by pressing the button.
4.
Plug connector
4
into the back of the UPS.
5.
Connect and restart the UPS following the previously described procedures.
6.
Activate the external remote shutdown contact to test the function.
WARNING!
This connector must only be connected to SELV (Safety Extra-Low Voltage) circuits.
