Smart Power Systems SSP UPS - Manual (Page 30)

27
10. Emergency Power Off(EPO) set up
1500/2000VA and 3000VA include an EPO port that allows power to be
shut down protecting equipment immediately and does not follow the
shutdown procedure from any power management software.
Note: When EPO switch is reset, the equipment will not return to battery
power until the UPS is manually restarted. If pressing power switch to
turn off UPS after EPO is activated, the UPS remains in Standby mode
when restarted until pressing power switch to turn on the UPS again.
Follow the procedure to install the EPO switch as below.
1.Check the UPS is turned off.
2.Remove the EPO connector from the EPO port on the rear panel of UPS
3.Connect isolated, normally-open, dry contacts (rated to handle 60Vdc
maximum, 30Vac RMS maximum, and 20mA maximum) across the EPO
device to Pin 1 and Pin 2. Use non-shield wiring, size 18-22 AWG (0.75
mm 0.3 mm ).
4.Reconnect the EPO connector to the EPO port.
Verify that the externally-connected EPO switch is not activated to enable
power to the UPS output receptacles.
6.Plug in the UPS, then pressing power switch button to turn on the UPS.
7.Activate the external EPO switch to test the EPO function
8.De-activate the external EPO switch and restart the UPS.
2 2
5.
4. INSTALLATION