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4.106
SEL-787 Relay
Instruction Manual
Date Code 20081022
Protection and Logic Functions
Report Settings (SET R Command)
Report Settings (SET R Command)
The report settings use Relay Word bits for the SER trigger as shown in
(see
for more information).
SER Chatter Criteria
The SER includes an automatic deletion and reinsertion function to prevent
overfilling of the SER buffer with chattering information. Each processing
interval the relay checks the Relay Word bits in the four SER reports for any
changes of state. When detecting a change of state, the relay adds a record to
the SER report containing the Relay Word bit(s), new state, time stamp, and
checksum (see
for more information).
When detecting oscillating SER items, the relay automatically deletes these
oscillating items from SER recording.
shows the auto-removal
settings.
Table 4.58
Pushbutton LED Settings
Setting Prompt
Setting Range
Setting Name := Factory Default
PB1A_LED EQUATION
SEL
OGIC
PB1A_LED := NOT LT01 OR SV01
AND NOT SV01T AND SV05T
PB1B_LED EQUATION
SEL
OGIC
PB1B_LED := LT01 OR SV01 AND
NOT SV01T AND SV05T
PB2A_LED EQUATION
SEL
OGIC
PB2A_LED := NOT LT02 OR SV02
AND NOT SV02T AND SV05T AND
PB02
PB2B_LED EQUATION
SEL
OGIC
PB2B_LED := LT02 OR SV02 AND
NOT SV02T AND SV05T AND PB02
PB3A_LED EQUATION
SEL
OGIC
PB3A_LED := 52A1 OR (SV03 AND
SV05T AND NOT SV03T AND NOT
LT02)
PB3B_LED EQUATION
SEL
OGIC
PB3B_LED := 52A2 OR (SV03 AND
SV05T AND NOT SV03T AND LT02)
PB4A_LED EQUATION
SEL
OGIC
PB4A_LED := NOT 52A1 OR (SV04
AND SV05T AND NOT SV04T AND
NOT LT02)
PB4B_LED EQUATION
SEL
OGIC
PB4B_LED := NOT 52A2 OR (SV04
AND SV05T AND NOT SV04T AND
LT02)
Table 4.59
Auto-Removal Settings
Settings Prompt
Setting Range
Factory Default
Auto-Removal Enable
Y, N
ESERDEL := N
Number of Counts
2–20 counts
SRDLCNT := 5
Removal Time
0.1–90.0 seconds
SRDLTIM := 1.0
Summary of Contents for SEL-787
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