Schweitzer Engineering SEL-351P, Quick Start Manual

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Date Code 990215 Inputs, Outputs, Timers, and Other Control Logic 7-19
SEL-351P Manual Técnico
M
ULTIPLE
S
ETTING
G
ROUPS
The relay has six (6) independent setting groups. Each setting group has complete relay
(overcurrent, reclosing, frequency, etc.) and SEL
OGIC
Control Equation settings.
Active Setting Group Indication
Only one setting group can be active at a time. Relay Word bits SG1 through SG6 indicate the
active setting group:
Table SECTION 7: .3: Definitions for Active Setting Group Indication
Relay Word Bits SG1 Through SG6
Relay Word bit Definition
SG1 Indication that setting Group 1 is the active setting group
SG2 Indication that setting Group 2 is the active setting group
SG3 Indication that setting Group 3 is the active setting group
SG4 Indication that setting Group 4 is the active setting group
SG5 Indication that setting Group 5 is the active setting group
SG6 Indication that setting Group 6 is the active setting group
For example, if setting Group 4 is the active setting group, Relay Word bit SG4 asserts to
logical 1, and the other Relay Word bits SG1, SG2, SG3, SG5, and SG6 are all deasserted to
logical 0.
Selecting the Active Setting Group
The active setting group is selected with:
•
SEL
OGIC
Control Equation settings SS1 through SS6.
•
The serial port GROUP command (see Section 10: Serial Port Communications and
Commands ).
•
Or the front-panel GROUP pushbutton (see Section 11: Additional Front-Panel
Interface Details ).
SEL
OGIC
Control Equation settings SS1 through SS6 have priority over the serial port GROUP
command and the front-panel GROUP pushbutton in selecting the active setting group.