32
A B B U PS PRODUC TS A N D SOLUTI ON S
6 .3 .1
Dry IN
Dry in allows a remote action to switch on/ switch
off/ maintenance bypass the UPS.
This is done by switching the contact from closed
to open.
6 .3 .2
Dry OUT
The dry out port is normally open. If the dry out
port is open, it indicates that the UPS is running
in summary alarm / on battery / battery low /
UPS ok / on bypass.
—
6.3-1:
EPO (Emergency
power off)
—
6.3.2-1:
Dry IN & OUT
connector
The UPS can communicate with USB-compliant
computers that run power management
software. To establish communication between
the UPS and a computer, connect the USB cable
to the USB port on the UPS. Connect the other
end of the cable to the USB port on a computer.
The EPO connector can be used to block the
output of the UPS in case of an emergency.
The EPO connector can be configured as Normally
Closed (NC) or Normally Opened (NO) through
the USB or RS232 port.
By default, the EPO connector is Normally Closed
(NC) by a jumper in the rear panel. If the jumper is
removed, the UPS output will not supply energy
to the load until the EPO status is changed.
To return to normal status, the EPO connector must
be closed. Enter the LCD settings to clear the EPO
status (LCD settings-->LCD Program 15 EPO
warning clearance). The UPS alarm is cleared and
bypass mode is recovered. Set the UPS to inverter
mode manually.
—
6 .2 USB port
—
6 .3 Emergency power off
—
6.3.2-1
1
2
4
3
Normally Open
Activated Closed
+Vcc
EPO
EPO
1
2
3
4
+Vcc
1
2
3
4
1
2
4
3
Normally Open
Activated Closed
+Vcc
EPO
EPO
1
2
3
4
+Vcc
1
2
3
4
—
6.3-1
