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64
NA11 - Manual - 02 - 2009
FUNCTION CHARACTERISTICS
50N-51NS1_BL-diagram.ai
BLK1IE>
IE>BLK1
IE>BLK2IN
Start
I
E
>
Trip
I
E
>
IE>BLK2OUT
Start
I
E
>
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Block2 IPh
Block2 IPh/IE
ModeBLIN1
T
0
t
B-Iph
≥
1
≥
1
≥
1
≥
1
≥
1
t
B-Iph
t
B-IE
&
&
BLK2IN IE>
&
&
Enable (ON
≡
Enable)
Block2 input enable (ON
≡
Enable)
Pilot wire input
Pilot wire output
&
Block1
BLK2IN-Iph
Iph Block2
IE Block2
IE/Iph Block2
BLK2IN-IE
tB timeout
Block2 input
Block1
FROM EARTH FAULT PROTECTIONS
FROM ANY PROTECTIONS
OFF
ON IPh
ON IPh/IE
ON IE
BLIN1
Block1
T
0
t
B-IE
Block2 IE
Block1, Block2
TRIP
P
ING
M
A
TRIX
(LED
+R
EL
A
Y
S
)
TRIP
P
ING
M
A
TRIX
(LED
+R
EL
A
Y
S
)
≥
1
≥
1
ModeBLOUT1
A
B
C
D
BLOUT1
Block2 output
≥
1
≥
1
t
F-IPh
t
F-IPh/IE
t
F-IE
ST-Iph BLK2
ST-IE BLK2
&
Block2 output
(ON
≡
Enable)
≥
1
T
0
t
F-IPh/IE
T
0
t
F-IPh
T
0
t
F-IE
I
>> Blk2 OUT
I
> Blk2 OUT
I
>>> Blk2 OUT
I
E
>> Blk2 OUT
I
E
> Blk2 OUT
I
E
>>> Blk2 OUT
BLK2OUT-Iph
BLK2OUT-Iph/IE
BLK2OUT-IE
A = OFF
B = ON IPh
C = ON IPh/IE
D = ON IE
BLK2OUT-IPh-K
BLK2OUT-IPh-L
BLK2OUT-IPh/IE-K
BLK2OUT-IPh/IE-L
BLK2OUT-IE-K
BLK2OUT-IE-L
tB-K
tB-L
Residual overcurrent (50N/51N) - Logic diagram of the blocking signals concerning the first element (IE>)
Summary of Contents for NA11
Page 189: ...189 NA11 Manual 02 2009 APPENDIX...