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

Section 3
Basic functions
3.4
3.4.1
3.4.1.1
3.4.1.2
56
Name Type
Programmable LED Enum
4
Programmable LED Enum
5
Programmable LED Enum
6
Programmable LED Enum
7
Programmable LED Enum
8
Programmable LED Enum
9
Programmable LED Enum
10
Programmable LED Enum
11

Time synchronization

Time master supervision GNRLLTMS

Function block

GUID-52938D64-7CEC-4CFC-BBC1-04FA6860EAD1 V1 EN
Figure 21: Function block

Functionality

The protection relay has an internal real-time clock which can be either free-running
or synchronized from 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.
Values (Range) Unit
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
0=None
1=Ok
3=Alarm
1MRS758755 A
Description
Status of programmable
LED 4
Status of programmable
LED 5
Status of programmable
LED 6
Status of programmable
LED 7
Status of programmable
LED 8
Status of programmable
LED 9
Status of programmable
LED 10
Status of programmable
LED 11
REC615 and RER615
Technical Manual