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NV10P - Manual - 01 - 2015
CHARACTERISTICS
For every of the two thresholds the logic block can be set.
Logical block (Block1)
If the
UE>BLK1
and/or
UE>>BLK1
enabling parameters are set to
ON
and a binary input is de-
signed for logical block (Block1), the protection is blocked off whenever the given input is active.
The trip timer is held in reset condition, so the operate time counting starts when the input block
goes down.
[1]
The enabling parameters are available inside the
Set \ Profi le A(or B) \ Residual over-
voltage - 59N \
UE> Element
(
UE>> Element) \ Setpoints
menus, while the
Block1
function must be
assigned to the selected binary input inside the
Set \ Inputs \ Binary input IN1(2)
menus (IN1 or IN2
matching).
All the named parameters can be set separately for
Profi le A
and
Profi le B
).
Note 1 The exhaustive treatment of the logical block (Block 1) function may be found in the “Logic Block” paragraph inside
CONTROL AND MONITOR-
ING
section.
Logic diagram concerning the first threshold (UE>) of the residual overvoltage element - 59N
Fun-F59N_S1.ai
≥
1
U
E
> Inhibition
(ON
≡
Inhibit)
&
U
E
> Curve
0
T
RESET
t
UE>
0
T
TRIP
P
ING
M
ATRIX
(LED
+R
EL
AY
S
)
t
UE>def
t
UE>inv
Start U
E
>
U
E
>ST-K
U
E
>ST-L
Start U
E
>
Trip U
E
>
U
E
>TR-K
U
E
>TR-L
Trip U
E
>
Trip U
E
>
BF Enable (ON
≡
Enable)
UE>BF
towards BF logic
&
Block1 U
E
>
74VT ext.
U
E
> 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
74VText.
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
t
UE>RES
T
0
t
UE>RES
ON
≡
Enable UE> residual overvoltage element
UE
>
Enable
U
E
U
E>def
U
E>inv
≥
1
&
State
U
E
≥
U
E>def
U
E
≥
U
E>inv
&
State
UE>BLK1
≥
1
( 1
≡
DDI closed)
DDI state
( 1
≡
upstream)
UE>>disbyCB_OPEN