Schweitzer Engineering Laboratories SEL-421-4 - Figure 5.90 SOTF Logic Diagram

5.119
Date Code 20171021 Instruction Manual SEL-421 Relay
Protection Functions
Switch-Onto-Fault Logic
Figure 5.90 SOTF Logic Diagram
52AEND
ESPSTF := Y
0
CLOEND
0
5
CYC
0
0
SOTFD
SOTFE
Reset
0
SOTFD
SPO
3PO
Relay
Word
Bit
52AEND := OFF
Settings
CLOEND := OFF
CLSMON
EVRST := Y
VA1FM
VRSTPU • VNOM
0.1
SPOA
SPOB
SPOC
Setting
3VA2FM
3•VA1FM
Setting
SELOGIC
Setting
Relay
Word
Bits