Thytronic Pro-N NVA100X-D

FUNCTION CHARACTERISTICS
141
NVA100X-D - Manual - 02 - 2016
51LR-diagram.ai
BF Enable (ON≡Enable)
ILR>BF
towards BF logic
ILR> BF
&
Trip ILR>
t
LR
>
inv
0T
RESET
Start ILR>
Trip ILR>
TRIPPING MATRIX (LED+RELAYS)
ILR>TR-K
ILR>TR-L
ILR>ST-K
t
LR
>
inv
I
L1L
I
L2L
≥1
≥1
ON≡Enable ILR> element
&
I
L3L
ILR> Enable
I
L1L
≥ I
LR
>
inv
I
LR
>
inv
I
L2L
≥ I
LR
>
inv
I
LR
>
inv
I
L3L
≥ I
LR
>
inv
I
LR
>
inv
ILR> overcurrent element (51LR) block diagram
Block1, Block2
STOP RUNNING
Mode51LR>
Binary input INx
T0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Speed control
Speed control
“0”
Speed control
Mode51LR
“0”
“0”
without speed control
with speed control
Locked rotor - First element logic diagram