Sel SEL-2505, Инструкция по эксплуатации

Страница: 2 / 12

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
PO
WER SUPPL
Y
1
2
3
4
5
678
9
10
11
12
13
14
15
16
17
18
19
2
0
21
22
23
2
4
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
OUT1
OUT8
48
4
7
4
6
45
4
4
4
3
4
2
4
1
4
0
39
3
8
3
7
3
6
35
3
4
3
3
32
3
1
3
0
29
2
8
27
2
6
25