Publicité
Les langues disponibles
Les langues disponibles
Setting
IDn( )
0,03
0,05
x1
30mA
50mA
x10
300mA
500mA
x100
3A
5A
Intervention threshold IDn
0,03A
Loaded delay Dt(s)
Non-intervention time @ 2IDn
Max. delay @ 5IDn
0,03s
LE12569AA_E 10/20 - 01IM cod.RD4B21.B
0,075
0,1
0,15
0,2
75mA
100mA
150mA
200mA
750mA
1A
1,5A
2A
7,5A
10A
15A
20A
0,05...30A
0s
0,06s
0,15s
0,31s
0,5A
0,06s
0,15s
0,31s
0,5A
0,13s
0,28s
0,44s
0,7s
State of relay selection
Nd
(normally de-energized)
0,3
Negative securaty failing the extra supply voltage, the output relay does not change
300mA
its state.
3A
30A
Ne
(normally energized)
Positive securaty failing the extra supply voltage, the output relay switches in alarm
condition. The pre-alarm relay (AL50%-AL-2 function) is always normally de-energized.
Output relay contact range: 5A 250Vac cosj 1 – 3A 250Vac cosj 0,4 – 5A 30Vdc.
Test
By pressing
Test
key you can simulate the alarm condition, the LED turning on and the out-
put relay switching.
1s
4,5s
At the moment of installation it is important to carry out a
1s
4,5s
to verify the proper working of the protection.
1,8s
5,5s
Test no trip
By pressing in sequence
working of the differential relay without provoking the output relay switching
(with alarm relay release).
Reset
(reset after alarm intervention)
The reset can be selected in manual or automatic mode..
Man
(manual)
The state of alarm remains until the operator does not act on Reset key.
The reset is inhibited with continuous differential current > 50% of loaded IDn
ut
(automatic)
When the alarm has occurred, the device automatically resets,
making 10 attempts with different delays (see table).
After 30 minutes from reset, the attempt counter
automatically resets.
The reset is inhibited with continuous differential
current > 50% of loaded IDn
Differential relays
Test
Reset
then
Test
and keeping both pressed you can verify the proper
(with alarm relay release)
ttempts
Delay
1
30s
2
1min
3
2min
4
4min
5
8min
6
16min
7
32min
8
64min
9
128min
10
256min
7
Publicité
