70
NV021 - Manual - 08 - 2012
CHARACTERISTICS
4.5
CONTROL AND MONITORING
Logic block (Block1)
To the purpose to block off the trip of one protection element, the logical block function (Block1) may
be matched with binary inputs.
[1]
The binary-matching may be set inside the
Inputs
submenu; to the purpose the
Block1
parameter
must be selected for
INx matching
(x=1, 2)
A protective element, where the logical block is enabled, is blocked off whenever the given input is
ON.
For a given protective element, the logical block state is reading available (ThySetter and communi-
cation interfaces); it is ON the following condition are at the same time observed:
Binary input ON,
Element start ON,
Element Trip OFF.
The logical block it is not liable for any inhibition time-out, so the protective element is disabled for
the whole time when the input is ON.
[2]
Note 1 In the following treatment, the logical block is defi ned as “Logical block” or “Block1”
Note 2 The Block 1 signal forces a timer reset
—
•
•
•
Schema funzionale relativo al blocco logico - Block1
Blocco_L.ai
RESET
Operate time
0
T
Generic protective element
Measure
Input
TR
IP
P
ING
M
A
TR
IX
(LED
+R
EL
A
Y
S
)
BLK1xxx
Operate time
Threshold
Start
Start
Trip
Trip
&
&
&
Enable (ON
≡
Enable)
Block1 input (ON
≡
Block)
Customized Block1 info
Block1 info (internal state)
xxxBLK1
Block1
Block1
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Schema funzionale relativo al blocco logico - Block1
Blocco_L.ai
RESET
Operate time
0
T
Generic protective element
Measure
Input
TR
IP
P
ING
M
A
TR
IX
(LED
+R
EL
A
Y
S
)
BLK1xxx
Operate time
Threshold
Start
Start
Trip
Trip
&
&
&
Enable (ON
≡
Enable)
Block1 input (ON
≡
Block)
Customized Block1 info
Block1 info (internal state)
xxxBLK1
Block1
Block1
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Start
Block1 (input)
Block1 (output)
Trip
Operate time
t
Timers-Block1.ai
Logic block timers - Block1
Start
Block1 (input)
Block1 (output)
Trip
Operate time
t
Timers-Block1.ai
Logic block timers - Block1
Activation of any binary input assigned ti logic block (Block1) function effects a block of all the
protective elements where the logic block is enabled
CAUTION
Activation of any binary input assigned ti logic block (Block1) function effects a block of all the
protective elements where the logic block is enabled
CAUTION