7-24 Inputs, Outputs, Timers, and Other Control Logic Date Code 20001006
SEL-351 Instruction Manual
Table 7.5: SELOGIC Control Equation Settings for Switching Active Setting Group Between
Setting Groups 1 and 4
Setting Group 1 Setting Group 4
SV8 = SG1 SV8 = SG4
SS1 = 0 SS1 = IN5*SV8T
SS2 = 0 SS2 = 0
SS3 = 0 SS3 = 0
SS4 = IN5*SV8T SS4 = 0
SS5 = 0 SS5 = 0
SS6 = 0 SS6 = 0
SELOGIC Control Equation timer input setting SV8 in Table 7.5 has logic output SV8T, shown in
operation in Figure 7.21 for both setting Groups 1 and 4.
Figure 7.21: SELOGIC Control Equation Variable Timer SV8T Used in Setting Group
Switching
In this example, timer SV8T is used in both setting groups — different timers could have been
used with the same operational result. The timers reset during the setting group change, allowing
the same timer to be used in both setting groups.
Courtesy of NationalSwitchgear.com