142
NVA100X-D - Manual - 02 - 2016
FUNCTION CHARACTERISTICS
Locked rotor (first element) - Logic diagram of the blocking signals
51LR_BL-diagram.ai
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
t
B-Iph
t
B-IE
BLK1ILR>
&
&
BLK2IN ILR>
&
&
Enable (ON
≡
Enable)
ILR>BLK1
Block2 input enable (ON
≡
Enable)
Pilot wire input
&
ILR>BLK2IN
Block1
BLK2IN-Iph
Start
ILR
>
Trip
ILR
>
Iph Block2
IE Block2
BLK2IN-IE
tB timeout
Block2 input
tB-K
tB-L
Block1
FROM ANY PROTECTIONS
FROM PHASE PROTECTIONS
OFF
ON IPh
ON IPh/IE
ON IE
BLIN1
Block1
T
0
t
B-IE
Block2 IE
≥
1
Block1, Block2
TRIP
P
ING
M
ATRIX
(LED
+R
EL
AY
S
)
≥
1
≥
1
Pilot wire output
TR
IP
P
ING
M
ATR
IX
(LED
+R
EL
AY
S
)
ModeBLOUT1
A
B
C
D
BLOUT1
Block2 output
≥
1
t
F-IPh
t
F-IPh/IE
t
F-IE
ST-Iph BLK2
ST-IE BLK2
T
0
t
F-IPh/IE
T
0
t
F-IPh
T
0
t
F-IE
BLK2OUT-Iph
BLK2OUT-Iph/IE
BLK2OUT-IE
&
Block2 output
(ON
≡
Enable)
ILR>BLK2OUT
Start
I
LR
>
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
FROM EARTH FAULT PROTECTIONS
I
LR
> Block2 OUT
All other BLK2OUT outputs
of phase elements
(see BLK2OUT chapter)
≥
1
All BLK2OUT outputs
of ground elements
(see BLK2OUT chapter)
≥
1