Al = R* MAl
A2 = R* MA2
A3 = R* MA3
A4 = R* MA4
The
"
*
"
indicates a logical
"
and,
"
while the
"
+
"
indicates a logical
"
or.
"
Relay Word
The Relay Word consists of three eight-bit rows containing relay elements, intermediate logic
results, logic inputs, and relay outputs. Each bit in the Relay Word is either a logical 1 or
logical 0.
1 indicates a picked up element or true logic condition
0 indicates a dropped out element or false logic condition
The Logic Description defines logic conditions in the Relay Word.
RELAY WORD
Z1P
Z1G
Z2PT
Z2GT Z3
Z3T
3P21
32Q
67N
51NP 51NT
50NG 50P
50H
IN1
REJO
LOP
52BT 27S
27P
59S
59P
SSC
VSC
The meaning of each bit of the Relay Word is explained in the Relay Word Bit Summary
Table.
2-20
Specifications
SEL-221F, -1 Instruction Manual
Date Code 920508
Summary of Contents for SEL-221F
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Page 69: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 44 ...
Page 70: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 45 ...
Page 71: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 46 ...
Page 72: ...Date Code 920508 Specifications SEL 221F 1 Instruction Manual 2 47 ...
Page 110: ...Example Event Report 2 4 12 Event Reporting SEL 221F 1 Instruction Manual Date Code 930830 ...
Page 158: ...SETTINGS SHEET FOR SEL 221F RELAY PAGE 2 OF 6 DATE Date Code 921110 ...
Page 160: ...SETTINGS SHEET PAGE 4 OF 6 FOR SEL 221F RELAY DATE Date Code 930601 ...
Page 161: ...SETTINGS SHEET PAGE 5 OF 6 FOR SEL 221F RELAY DATE Date Code 961208 ...
Page 229: ...SEL 200 Series Relay Main Board Troubleshooting Test Points and Jumper Locations ...