7: Options
38
TS_600_00 PW1000 1-3kVA User Manual 6/4/17
7.3
Emergency Power Off (EPO) / Remote ON/OFF (ROO)
Figure 7.2 EPO Connection
The Emergency Power Off (EPO) option allows you to turn off the UPS using an external switch or contact that is wired to
the EPO terminal block on the back of the UPS. The external circuit consists of a ‘normally open’ external contact that will
power-off the UPS when the contact is closed.
When the EPO circuit is activated the UPS output is
shut down, removing power to the load, but the
battery charger remains operational to maintain
battery charging. An
EPO
alarm is shown on the LCD
display but you can still scroll through and monitor
the UPS input, battery and output metering.
Once the external EPO command is removed, the
UPS must be restarted by pressing the UPS
ON
button to restore the UPS to normal operation.
The external EPO connection should be made using
a screened, single pair cable (0.5mm²) with a
maximum length of 100 metres.
7.4
CS141 /SMNP adapters
Figure 7.4 SNMP Adapters
Simple Network Management Protocol (SNMP) is a world-wide, standardised communication protocol that can be used to
monitor any network-connected device via a simple control language and display the results in a browser-based
application. The software agent built in to the CS141 adapter card makes the UPS data available in this SNMP format
which can then be utilized by a number of UPS management software applications.
The card contains a serial interface, which can be connected directly to a computer’s serial port, and an RJ-45 connector
which allows it to be connected to a network using a standard CAT-5 cable. The SNMP adapter can be configured via
Telnet, http (browser) or serial connection. For normal operation, at least one Ethernet network connection is necessary.
AC
IN
P
U
T
AC OUTPUT
INPUT BREAKER
EXT> BAT.
INTERFACE
1
2
EP
O
RS
2
3
2
USB
Emergency Power Off
device
INPUT
UPS
LOAD
Alarm
1
2
Figure 7.3 EPO Warning
AC
IN
P
U
T
AC OUTPUT
INPUT BREAKER
EXT> BAT.
INTERFACE
1
2
EP
O
R
S
232
US
B
Internal CS 141 card fitted
in the Interface slot
Optional external CS 141 card
connected to the RS-232 port
