Schweitzer Engineering Laboratories SEL-351-5 - Program an Output Contact for Closing

Date Code 20020426 Close and Reclose Logic 6-5
SEL-351-5, -6, -7 Instruction Manual
DP2 = IN101
This can be entered instead as:
DP2 = 52A
(presuming SELOGIC control equation setting 52A = IN101 is made).
Program an Output Contact for Closing
In the factory settings, the resultant of the close logic in Figure 6.1 is routed to output contact
OUT102 with the following SEL
OGIC control equation:
OUT102 = CLOSE
See Output Contacts in Section 7: Inputs, Outputs, Timers, and Other Control Logic for more
information on programming output contacts.
RECLOSE SUPERVISION LOGIC
Note that one of the inputs into the close logic in Figure 6.1 is:
Reclosing Relay Open Interval Time-Out (qualified by 79CLS)
This input into the close logic in Figure 6.1 is the indication that a reclosing relay open interval
has timed out (see Figure 6.6), a qualifying condition (SEL
OGIC control equation setting 79CLS)
has been met, and thus automatic reclosing of the circuit breaker should proceed by asserting the
CLOSE Relay Word bit to logical 1. This input into the close logic in Figure 6.1 is an output of
the reclose supervision logic in the following Figure 6.2.