FUNCTION CHARACTERISTICS
231
NVA100X-D - Manual - 02 - 2016
RESET
t
f
<<<
def
0
T
TRIP
P
ING
M
ATRIX
(LED
+R
EL
AY
S
)
t
f
<<<
def
f
<<< Start
f
<<< Start
f
<<< Trip
f
<<< Trip
f
<<< Trip
BF Enable (ON
≡
Enable)
towards BF logic
&
f
<<< Block1
f
<<< BF
&
&
&
Enable (ON
≡
Enable)
From 4th element
Block1 input (ON
≡
Block)
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
&
(ON
≡
Inhibit)
f
<< inhibition
f<<disbyf<<<
&
(ON
≡
Inhibit)
f
< inhibition
f<disbyf<<<
(ON
≡
Inhibit)
f<
<< inhibition
&
f
≤
f
<<<
def
f
<<<
def
f
f<<<BF
Fun-F81U_S3.ai
f
<<<ST-K
f
<<<ST-L
f
<<<TR-K
f
<<<TR-L
f<<<BLK1
U
L1
,
U
L2
,
U
L3
Max (
U
L1
,
U
L2
,
U
L3
) ≥ 2 0 %
U
n
Logic diagram concerning the third threshold (f<<<) of the underfrequency element - 81U
RESET
t
f
<<<<
def
0
T
TRIP
P
ING
M
ATRIX
(LED
+R
EL
AY
S
)
t
f
<<<<
def
f
<<<< Start
f
<<<< Start
f
<<<< Trip
f
<<<< Trip
f
<<<< Trip
BF Enable (ON
≡
Enable)
towards BF logic
&
f
<<<< Block1
f
<<<< BF
&
&
&
Enable (ON
≡
Enable)
Block1 input (ON
≡
Block)
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
&
(ON
≡
Inhibit)
f
<< inhibition
f<<disbyf<<<<
&
(ON
≡
Inhibit)
f
<<< inhibition
f<<<disbyf<<<<
&
(ON
≡
Inhibit)
f
< inhibition
f<disbyf<<<<
&
f
≤
f
<<<<
def
f
<<<<
def
f
f<<<<BF
Fun-F81U_S4.ai
f
<<<<ST-K
f
<<<<ST-L
f
<<<<TR-K
f
<<<<TR-L
f<<<<BLK1
U
L1
,
U
L2
,
U
L3
Max (
U
L1
,
U
L2
,
U
L3
) ≥ 2 0 %
U
n
Logic diagram concerning the fourth threshold (f<<<<) of the underfrequency element - 81U