Signaling Of Protection Unit State - LEGRAND 0 281 64 Mode D'emploi

Protection unit

3. Signaling of protection unit state

LED 2
LED 1
The state of Protection Unit is signaled through LED 1 and 2, according to the table:
PROTECTION
Inactive
Active: (I 100A for DMX-SP/250A
for DMX -1600 or supplied)
3
Active: (overload prealarm I > 0 .9Ir)
Active: (overload alarm I > 1 .05Ir)
Active: (over temperature alarm T >75°C) Green
An alarm is more important than a prealarm . The overload is more important than over temperature .
LED 3
Failure by ground fault
(only for item 0 281 66
and 0 281 68)
LED 4
Failure by short circuit/
instantaneous short circuit
LED 5
Failure by overload/
over temperature
In case of breaker tripping
the LED corresponding to
the protection that caused
the tripping remains lighted,
signalling the corresponding
fault has occured . (if external
supply is present)
2.5 6
4 12
4
15 2 8
3
3
10
lcw
2
1.5
2
x ln x lr
x
lr
lr
0.06 0.08 0.1
0.7 0.8 0.9
0.7 0.8 0.9
0.04
0.6
0.6
0.5 0.02
0.5
0.4 +
0.00
0.4
MAN AUT
x
ln
N
100%
lr
ON
x
ON
50%
l>.90
OFF
l>.90
l>1.05
l>1.05
LED1
Off
Green
Green Fix
Green Fix
Flashing
OK
lg tg
LED 3
1
0.5 0.6 0.7 1
0.5
0.4 0.8
1
0.3 0.2
0.2
0.1
OFF
lsd
li
LED 4
6 8 10 3 4 5
2.5
4 12
15 2
3
lcw
2
1.5
x ln
lr
0.06 0.08 0.1
LED 5
0.7 0.8 0.9
0.04
0.6
0.02
0.5
+
0.4
0.00
0.5
0.2
2.5
6 0.5
12
0.2 0.1
8
15 2
0.2
0.1
10
lcw
1.5
0.1
s
ln
x lr
tr MEM-OFF
tr
MEM-OFF
30 30 20
0.06 0.08 0.1
30 30 20
20
10
0.04 20
10 5
0.02
10
5
+ 5
0.00
@6I r
MAN AUT
s
@6I
x
ln
N
100%
lr
x
50%
0 281 66
OFF
0 281 66
LED2
Red
Red
Red
C
OK
test
lg tg
test
0.5
0.5 0.6 0.7 1
1
0.5
0.2
0.5
0.8
0.4
0.2
0.1
1 0.2 0.1
0.3
0.2 0.1
OFF
tsd l
2
t=k@12lr
tsd l
lsd
li
1 1 0.5
6 8 10 3 4 5
6 0.5
0.2
2.5 6 0.5
4 12
8
0.2 0.1
8
15 2
3 0.2
10
0.1
lcw 10
2
1.5
0.1
x lr s
x ln x lr
tr MEM-OFF
tr
lr
30 30 20
0.06 0.08 0.1
0.7 0.8 0.9
20
10
0.04 20
0.6
10 5
0.5 0.02 10
5
0.4 + 5
0.00
@6I r
s
x
ln
x
ln
0.2
0.1
s
10
5
r
s
Off
Off
Fix
Flashing
Flashing
C
2
t=k@12lr
1 1 0.5
0.2
0.1
s
MEM-OFF
30 30 20
10
5
@6I r
s
35