2
SEL-2505 Remote I/O Module Date Code 20010214
Product Overview
Product Overview
Figure 1 shows the functional overview of the SEL-2505.
The SEL-2505 is an excellent auxiliary relay or a simple way of
expanding the number of I/O points available in a system of relays. It
is superior to hard-wiring relays together through electromechanical or
static auxiliary relays, because you can now monitor the performance of
the communication channel. In addition, its self-testing ability ensures
prompt notification of any device or communication channel problem.
Figure 1 SEL-2505 Functional Overview.
Wide range
power supply
consumes
less than
5 watts.
Alarm contacts
signal self-test
and communi-
cations channel
status.
Level-sensitive
contact inputs
do not assert
during dc
grounds when
applied to center-
grounded systems.
LEDs indicate
input and output
status, channel
activity, device
status, and
communications
channel health.
Fiber-optic port
provides electrical
isolation. Communi–
cations protocol enhances
data transfer security.
Quick setup.
Rugged and
compact
flush mount
enclosure
withstands
EMI, RFI,
shock, and
vibration.
Output
contacts
rated for
trip and
close duty.
Each output
contact has
both "a" and
"b" contacts
for flexibility.
Screw
terminals
accept ring
lugs with
wires up to
#10 AWG.
All terminals
are clearly
numbered.
Large
range for
installing
outdoors.
+85˚C
–40˚C
END
LEFT SIDE
POWER SUPPLY
1
2
3
4
5
678
9
10 11 12
13
14 15 16
17
18 19 20
21
22 23 24
ALARM
IN1
IN2 IN3 IN4 IN5 IN6 IN7
IN8
FRONT
IN1
ENABLE ROK OUT1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
TX
RX
ALARM
LOOP
LAMP
TEST
SEL—2505
REMOTE I/O MODULE
SCHWEITZER
ENGINEERING
LABORATORIES
197-0350
RIGHT SIDE
OUT7 OUT6 OUT5 OUT4 OUT3 OUT2 OUT1OUT8
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
To Next Page
Loading...