7.23
Date Code 20070117
Instruction Manual
SEL-351-5, -6, -7 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
settings groups controlled by the assertion of three optoisolated inputs (e.g.,
IN101
,
IN102
, and
IN103
) in different combinations as shown in
The SEL-351 can be programmed to operate similarly. Use three optoisolated
inputs to switch between the six setting groups in the SEL-351. In this
example, optoisolated inputs
IN101
,
IN102
, and
IN103
on the relay are connected
to a rotating selector switch in
.
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 7.6
Active Setting Group Switching Input Logic
Input States
Active Setting
Group
IN103
IN102
IN101
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-351-5
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