Part Names
15
No.
Name
Function
⑤
REMOTE/EPO
External control
terminals
Use these terminals for controlling the UPS with a non-voltage contact from an external
device.
REMOTE/EPO Terminal Names External Appearance
REMOTE Terminals (Terminal Nos. 1 to 4)
Connect a remote switch for performing the ON/OFF operation of the UPS and shutting
down a computer from a remote location. The operation is as follows depending on the
interface setting value.
1. Interface setting: WS (work station) (default setting)
Remote ON of UPS/One-touch Shutdown of System
The OFF operation of the remote switch enables the computer connected to the
UPS to be shut down with one touch from a remote location, and then the UPS to
be stopped.
2. Interface setting: Standalone
Remote ON of UPS/Remote OFF of UPS
Select the interface according to the function to be used. For the setting procedure, see
“§3.5 Setting PC Interface” in the LCD Panel Operating Manual.
EPO Terminals (Terminal Nos. 5 and 6)
EPO stands for
“
Emergency Power Off.
”
Connect, for example, a switch for an emergency stop of UPS output.
If the switch is pressed when there is an emergency, the EPO terminals will enter the
short-circuit state and UPS output will stop.
After an emergency stop of the UPS has been performed, the UPS remains in the
emergency stop state even if the emergency output stop switch is released. Also, the
remote ON function cannot be enabled in the event of an emergency stop (when the EPO
terminals are in a short-circuited state). To resume operation of the UPS, release the
emergency output stop switch (short-circuited state), and press
on the unit control
panel for at least 1 second.
For how to connect to the terminals, see “§6.4 Connecting Optional Devices.”
This function will work regardless of whether the interface setting is set to “Standalone”
or “WS” (work station).
※
Please do not connect Hazardous Voltage to External Interfaces which is applicable SELV (Safety Extra Low Voltage)
circuit.
A switch for connecting to the terminals is not provided as an option for the UPS.
Check the following specifications and then connect and use, for example, a switch or a
contact of the customer’s system that matches the terminal specifications.
Terminal specifications
Circuit voltage: +5 V DC
Flowing current when short-circuited: Approx. 10 mA
Operating conditions
REMOTE: Short-circuit between terminals
for at least 1 second.
EPO:
Short-circuit between terminals
for at least 0.2 seconds.
Terminals: One-touch terminal block
Compatible wires: AWG 26 to 20
When using a transistor or other semiconductor switch, connect terminal Nos. 2, 4, and 6 to the -
(minus) pole side as shown in the figure on the right.
(In the case of a non-polar switch, there is no specified connection direction.)
1 Remote ON
2 COM
3 Remote OFF
4 COM
5 EPO
6 COM
EPO
terminals
REMOTE
terminals
Notes on contact of, for example, switch to connect to terminals
Terminals
1, 3, 5
+
-
2, 4, 6
Switch,
etc.
6
5
4
3
2
1
