Time Synchronization; Time Master Supervision Gnrlltms; Function Block; Functionality - ABB RELION REX640 Technical Manual

1MRS759142 C
3.6
3.6.1
3.6.1.1
3.6.1.2
REX640
Technical Manual
Table 33: IEC 61850 mapping
LED instance in Application Configuration
LED1...LED11
LED12...LED22
LED23...LED33

Time synchronization

Time master supervision GNRLLTMS

Function block

GUID-00452AE5-6042-4B15-9CE6-18EF5E2CF542 V1 EN
Figure 35: Function block

Functionality

The protection relay has an internal real-time clock which can be either free-running
or synchronized to an external source. The real-time clock is used for time stamping
events, recorded data and disturbance recordings.
The protection relay is provided with a 48-hour capacitor backup that enables the real-
time clock to keep time in case of an auxiliary power failure.
The setting Synch source determines the method for synchronizing the real-time
clock. If it is set to "None", the clock is free-running and the settings Date and Time
can be used to set the time manually. Other setting values activate a communication
protocol that provides the time synchronization. Only one synchronization method
can be active at a time. Both IEEE 1588 v2 and SNTP provide time master backup
functionality.
Connect at least one measurement channel in Application
Configuration in PCM600 either from the hardware (AIM or SIM) or
from SMVRCV to ensure that the time system works correctly.
Basic functions
Mapping in IEC 61850 data model (ALARM and OK
signals)
LEDGGIO1.Alm1...LEDGGIO1.Alm11
LEDGGIO1.Ind1...LEDGGIO1.Ind11
LEDGGIO1.Alm11...LEDGGIO1.Alm22
LEDGGIO1.Ind12...LEDGGIO1.Ind22
LEDGGIO1.Alm23...LEDGGIO1.Alm33
LEDGGIO1.Ind23...LEDGGIO1.Ind33
Section 3
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