Date Code 20011026 Specifications 2-37
SEL-321/321-1 Instruction Manual
Table 2.23: Input/Output Contact Targets
(Two I/O Board Version, SEL-321-1 Relay Only)
TAR Status Indicators
40
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
41
OUT9 OUT10 OUT11 OUT12 OUT13 OUT14 OUT15 !ALARM
42
OUT17 OUT18 OUT19 OUT20 OUT21 OUT22 OUT23 OUT24
43
OUT25 OUT26 OUT27 OUT28 OUT29 OUT30 OUT31 OUT32
44
TMB8 TMB7 TMB6 TMB5 TMB4 TMB3 TMB2 TMB1
45
MIRBRK MIRFRA MIRPAR MIROVR MIRIN MIRSYC MIRDAT MIRDIS
46
IN8 IN7 IN6 IN5 IN4 IN3 IN2 IN1
47
IN16 IN15 IN14 IN13 IN12 IN11 IN10 IN9
48
RMB8 RMB7 RMB6 RMB5 RMB4 RMB3 RMB2 RMB1
Table 2.24: Input/Output Contact Targets Summary
(One I/O Board Version and Two I/O Board Version, SEL-321-1 Relay Only)
Element Comment
MIRBRK
MIRFRA
MIRPAR
MIROVR
MIRIN
MIRSYC
MIRDAT
MIRDIS
Break detected on M
IRRORED BITS communication channel
Framing error detected on M
IRRORED BITS communication channel
Parity error detected on M
IRRORED BITS communication channel
Data received too quickly on M
IRRORED BITS communication channel
Too much idle time detected on M
IRRORED BITS communication channel
Synchronization request received on M
IRRORED BITS communication channel
Data error detected on M
IRRORED BITS communication channel
M
IRRORED BITS not enabled or relay is disabled
TRIP LOGIC
The relay contains both three-pole and single-pole tripping logic.
The user programs the desired trip output signals to output contacts using SEL
OGIC control
equations.
The user selects relay elements to trip:
• Unconditionally,
• For switch-onto-fault actions,
• And with communications assistance.
It also includes five choices for deasserting the trip output signals.
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