Alstom MiCOM P54 Series - Page 935

Symbols and Glossary P54x/EN SG/La4
MiCOM P543, P544, P545 & P546 (SG) 14-7
Logic timers
Logic
symbols
Explanation Time chart
t
0
Delay on pick-up timer, t
t
INPUT
OUTPUT
INPUT
OUTPUT
t
0
t
Delay on drop-off timer, t
t
t
INPUT
OUTPUT
INPUT
OUTPUT
t1
t2
Delay on pick-up/drop-off timer
t1 t2
t1 t2
INPUT
OUTPUT
INPUT
OUTPUT
t
Pulse timer
t
t
INPUT
OUTPUT
INPUT
OUTPUT
t
Pulse pick-up falling edge
t
INPUT
OUTPUT
t
Pulse pick-up raising edge
t
INPUT
OUTPUT
Latching
Latch
INPUT
OUTPUT
SG