107
NC2 0 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
All the named parameters can be set separately for Profi le A and Profi le B.
For every of the two thresholds the following block criteria are available:
Logical block (Block1)
If the U>BLK1 and/or U>>BLK1 enabling parameters are set to ON and a binary input is designed
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) \ Overvoltage - 59 \
U> Element (U>> Element) \ Setpoints menus, while the Block1 function must be assigned to the
selected binary input inside the Set \ Inputs \ Binary input IN1(x) menus (IN1 or INx matching).
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.
Fun-F59_S1.ai
U> Curve
0T
RESET
t
U>
0T
TRIPPING MATRIX
(LED+RELAYS)
t
U>def
t
U>inv
Start U>
U>ST-K
Start U>
U>TR-K
U>ST-L
U>TR-L
Trip U>
Trip U>
Trip U>
BF Enable (ON≡Enable)
U>BF
towards BF logic
&
BLK1U>
U> BF
&
&
&
Enable (ON≡Enable)
Block1 input (ON≡Block)
U>BLK1
Block1
Block1
Binary input INx
T0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T0
n.o.
n.c.
INx
t
OFF
U> Inhibition
(ON≡
Inhibit
)
&
Logic59
ON≡Enable U> overvoltage element
U> Enable
Logic diagram concerning the first threshold (U>) of the overvoltage element - 59
≥1
&
U
L1
U
L2
U
L3
≥1
&
State
U>
inv
U ≥
U>
def
U ≥
U>
inv
U>
def
&
State
all-F59.ai
U U
U> Element
U>> Element
Start U>>
Start U>> Start U>
Trip U>Trip U>>
&
U> disbyU>>
U> inhibition
t
U>
def
t
U>
inv
U>
def
t
U>>
def
U>>
def
U>
inv
U> CurveU> EnableState
Block1
BLK1U>
&
U>BLK1
Start U>
&
Block1
BLK1U>>
&
U>>BLK1
Start U>>
&
U>BF
Trip U>
&
U>BF
General logic diagram of the overvoltage elements - 59
AND
U
U
L1
,U
L2
,U
L3
OR
Common configuration
Logic59
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