Protection Functions; Type N Units - WEG ABW Serie Manual De Instrucciones

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Connector CN1
1 TTL TX (OCR side)
2 Current signal - Ir
3 TTL RX (OCR side)
4 Current signal - Is
5 Power (+), 24 V
6 Current signal - It
7 Power (-), GND
8 Current signal - In
9 Power (-), GND
10 Current signal - COM
11
12
13
14
15
16

4.4 PROTECTION FUNCTIONS

4.4.1 Type N units

Long delay
Current of Iu = In x ...
adjustment Ir = Iu x ...
tr @ 1.5xIr
Time of
tr @ 6xIr
adjustment
tr @ 7.2xIr
(s)
Precision: ± 15% ou < 100ms
Short delay
Current of
adjustment
Precision: ± 10%
Time of adjustment tsd (I²t Off) @ 10xIr
(s) @ 10xIr) tsd (I²t On) @ 10xIr
Opening min. time (ms)
I²t Off
Opening max. time (ms)
Instantaneous
Current of
adjustment Opening time: < 50ms
Shortage current to ground
Current of
adjustment
Precision: ± 10% (Ig>0,4In); ±20% (Ig≤0.4In)
Time of tg (I²t Off) @ 1xIn
adjustment (s)
tg (I²t On) @ 1xIn
Opening min. time (ms)
I²t Off
Opening max time (ms)
36 | ABW - Air Circuit Breaker
Power CT (-),
Power CT (+),
Delay contact (-),
Delay contact (+)
CT - Ir, override
MTD (+), 24 V
Ct - Is, override
CT - It, override
CT - COM
In override
Table 4.5: Connectors
0.5 0.6 0.7
0.80 0.83 0.85
12.5 25 50
0.5 1 2
0.34 0.69 1.38
Isd = Ir x ... 1.5
0.05
20
80
Ii = In x ... 2
Ig = In x ... 0.2
0.05
20
80
CN2
CT - Ir ZSI OUT (+)
ZSI OUT (-)
GND
CT - Is
24 V
CT - It Remote reset (+)
Remote reset (-)
GND
CT - In
MTD (-)
Spare
0.8 0.9
0.88 0.9
100 200
4 8
2.7 5.5
2 3 4
0.1 0.2 0.3
0.1 0.2 0.3
80 160 260
140 240 340
3 4 6
0.3 0.4 0.5
0.1 0.2 0.3
0.1 0.2 0.3
80 160 260
140 240 340
CN3
RS485 (+)
DO relay #1
ZSI IN (+) RS485 (-)
ZSI IN (-) DO relay #2
DO relay #3
RCD (+)
RCD (-) DO relay COM
Vr Power (+)
Vs Power (-)
Vt
V COM
1.0
0.93 0.95 0.98
300 400 500
12 16 20
8.3 11 13.8
5 6 8
0.4
0.4
360
440
8 10 12
0.6 0.7 0.8
0.4
0.4
360
440
CN4
Spare
Spare
1.0
Off
Off
Off
10 Off
15 Off
1 Off