Schweitzer Engineering Laboratories SEL-351 - Switch to Setting Group 4 as the Active Setting Group; Additional Rotating Default Display Example

Date Code 20001006 Inputs, Outputs, Timers, and Other Control Logic 7-45
SEL-351 Instruction Manual
Switch to Setting Group 4 as the Active Setting Group
When setting Group 4 is the active setting group, the reclosing relay is always disabled and
optoisolated input IN2 has no control over the reclosing relay. The text settings cannot be changed
(they are used in all setting groups), but the SELOGIC Control Equation settings can be changed:
SELOGIC Control Equation settings:
79DTL = 1 (set directly to logical 1 – reclosing relay
permanently “driven-to-lockout”)
DP1 = 0 (set directly to logical 0)
Text settings (remain the same for all setting groups):
DP1_1 = 79 ENABLED (displayed when DP1 = logical 1)
DP1_0 = 79 DISABLED (displayed when DP1 = logical 0)
Because SELOGIC Control Equation display point setting DP1 is always at logical 0, the
corresponding text setting DP1_0 continually displays in the rotating default displays:
79 DISABLED
Additional Rotating Default Display Example
See Figure 5.17 and accompanying text in Section 5: Trip and Target Logic for an example of
resetting a rotating default display with the TARGET RESET pushbutton.
Courtesy of NationalSwitchgear.com