Schweitzer Engineering Laboratories SEL-587Z - Output Contacts

4.20
SEL-587Z Instruction Manual Date Code 20020903
Control Logic
Output Contacts
Output Contacts
SELOGIC control equation settings OUT1 through OUT4 control Relay Word
bits OUT1 through OUT4, respectively. Relay Word bits OUT1 through
OUT4 in turn control output contacts OUT1 through OUT4, respectively.
Alarm logic/circuitry controls the ALARM output contact. See Figure 4.9 on
page 4.21.
EXAMPLE 4.11 Default Settings
The default setting for high-impedance tripping follows:
OUT1 = 87A1 + 87B1 + 87C1 Output Contact OUT1
The default setting for a bus zone operated alarm follows:
OUT2 = SV5T Output Contact OUT2
The default setting for a CT open-circuit alarm follows:
OUT3 = 87A2 + 87B2 + 87C2 Output Contact OUT3
The default setting for a breaker fail follows:
OUT4 = SV6T Output Contact OUT4
Issuing the serial port command PULSE n (n = OUT1 through OUT4) asserts
the corresponding Relay Word bit (OUT1 through OUT4) to logical 1. The
assertion of SEL
OGIC control equation setting OUTm (m = 1 through 4) to
logical 1 also asserts the corresponding Relay Word bit OUTm (m = 1 through
4) to logical 1.