Schweitzer Engineering Laboratories SEL-311C - Active Setting Group Switching Example; Table 7.7 Active Setting Group Switching Input Logic; Figure 7.21 Active Setting Group Switching (with Single Input) Time Line

7.23
Date Code 20060320 Instruction Manual SEL-311C Relay
Inputs, Outputs, Timers, and Other Control Logic
Multiple Setting Groups
Figure 7.21 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
setting groups controlled by the assertion of three optoisolated inputs (e.g.,
IN101, IN102, and IN103) in different combinations as shown in Table 7.7.
The SEL-311C can be programmed to operate similarly. Use three
optoisolated inputs to switch between the six setting groups in the SEL-311C.
In this example, optoisolated inputs IN101, IN102, and IN103 on the relay are
connected to a rotating selector switch in Figure 7.22.
TGR
SV8PU
SV8PU
4
1
SV8 = SG1
TGR
1
SV8 = SG4
SV8T
SS1 = IN105 * SV8T
Active Setting Group
SV8T
SS4 = IN105 * SV8T
Setting
Group 1
IN105
Setting
Group 4
Table 7.7 Active Setting Group Switching Input Logic
Input States
Active
Setting Group
IN103 IN102 IN101
0 0 0 Remote
001 Group 1
010 Group 2
011 Group 3
100 Group 4
101 Group 5
110 Group 6