32
Real-time clock with external time
synchronization (TIME)
Chapter 3
Common functions
1
Real-time clock with external time synchronization
(TIME)
1.1
Application
Use the time synchronization source selector to select a common source of absolute time for the
terminal when it is a part of a protection system. This makes comparison of events and distur-
bance data between all terminals in a SA system possible.
1.2
Function block
1.3
Input and output signals
Table 23:
Input signals for the TIME (TIME-) function block
Path in local HMI: ServiceReport/Functions/Time
Table 24:
Output signals for the TIME (TIME-) function block
1.4
Setting parameters
Path in local HMI: Configuration/Time
xx00000171.vsd
TIME-
TIME
MINSYNC
SYNCSRC
RTCERR
SYNCERR
Signal
Description
MINSYNC
Minute pulse input
SYNCSRC
Synchronization source selector input. See settings for details.
Signal
Description
RTCERR
Real time clock error
SYNCERR
Time synchronisation error
Summary of Contents for REL 551-C1*2.5
Page 1: ...Technical reference manual ProtectIT Line differential protection terminal REL 551 C1 2 5 ...
Page 23: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Page 39: ...30 Technical data Chapter 2 General ...
Page 63: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Page 71: ...62 Line differential protection phase segregated DIFL Chapter 4 Line differential protection ...
Page 89: ...80 Thermal phase overload protection THOL Chapter 5 Current ...
Page 101: ...92 Event function EV Chapter 7 Logic ...
Page 163: ...154 Terminal diagrams Chapter 11 Diagrams Figure 39 REL 551 C1 with DC switch ...