7-26
Inputs, Outputs, Timers, and Other Control Logic
Date Code 20001006
SEL-351 Instruction Manual
Figure 7.22: Active Setting Group Switching (With Single Input) Time Line
Active Setting Group Switching Example 2
Previous SEL relays (e.g., SEL-321 and SEL-251 Relays) have multiple settings groups controlled
by the assertion of three optoisolated inputs (e.g., IN1, IN2, and IN3) in different combinations as
shown in Table 7.6.
Table 7.6: Active Setting Group Switching Input Logic
Input States
Active
IN3
IN2
IN1
Setting Group
0
0
0
Remote
0
0
1
Group 1
0
1
0
Group 2
0
1
1
Group 3
1
0
0
Group 4
1
0
1
Group 5
1
1
0
Group 6
Summary of Contents for SEL-351
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