Thytronic NC20 - Page 108

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108
NC2 0 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
Fun-F59_S2.ai
RESET
t
U>>
0T
TRIPPING MATRIX (LED+RELAYS)
t
U>>def
Start U>>
Start U>>
Trip U>>
Trip U>>
Trip U>>
BF Enable (ON≡Enable)
towards BF logic
&
U>> BF
&
&
&
Enable (ON≡Enable)
Block1 input (ON≡Block)
Block1
Block1
&
(ON≡
Inhibit )
U> Inhibition
U>disbyU>>
Binary input INx
T0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
U>>ST-K
U>>TR-K
U>>ST-L
U>>TR-L
U>>BF
BLK1U>
U>>BLK1
Logic diagram concerning the second threshold (U>>) of the overvoltage element - 59
Logic59
≥1
&
U
L1
U
L2
U
L3
≥1
&
State
U>
inv
U ≥ U>
def
U ≥ U>
inv
U>
def
&
State