ABB RELION REX640 Technical Manual page 121

1MRS759142 C
REX640
Technical Manual
Table 36: IRIG-B Output signals
Name
ALARM
WARNING
EXTCLKMSTR
Table 37: DNP3, Modbus, IEC 60870-5-101/104 and IEC 60870-5-103 Output signals
Name
ALARM
WARNING
EXTCLKMSTR
Type
BOOLEAN
BOOLEAN
BOOLEAN
Type
BOOLEAN
BOOLEAN
BOOLEAN
Section 3
Basic functions
Description
Alarm status for clock
synchronization
TRUE if the signal has been lost
for a minute. Otherwise FALSE.
Warning status for clock
synchronization
TRUE if the signal connection is
lost.
FALSE if the relay is
synchronized to an IRIG-B
master.
Status of the protection relay's
clock synchronization
TRUE if the protection relay has
been synchronized to an IRIG-B
master. Otherwise FALSE.
Description
Alarm status for clock
synchronization
TRUE if the clock has not been
synchronized by the master.
FALSE if the clock has been
synchronized by the master.
Warning status for clock
synchronization
TRUE if the clock has not been
synchronized by the master.
FALSE if the clock has been
synchronized by the master.
Status of the protection relay's
clock synchronization
TRUE if the protection relay has
been synchronized by an
external master.
FALSE if the clock has not been
synchronized by an external
master.
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