15.10.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Single command, 16 signals SINGLECMD - -
15.10.2 Application
Single command, 16 signals (SINGLECMD) is a common function and always included
in the IED.
The IEDs may be provided with a function to receive commands either from a substation
automation system or from the local HMI. That receiving function block has outputs that
can be used, for example, to control high voltage apparatuses in switchyards. For local
control functions, the local HMI can also be used. Together with the configuration logic
circuits, the user can govern pulses or steady output signals for control purposes within the
IED or via binary outputs.
Figure
364 shows an application example of how the user can connect SINGLECMD via
configuration logic circuit to control a high-voltage apparatus. This type of command
control is normally carried out by sending a pulse to the binary outputs of the IED. Figure
364 shows a close operation. An open breaker operation is performed in a similar way but
without the synchro-check condition.
Single
command
function
SINGLECMD
CMDOUTy
OUTy
Close CB1
AND
User-
defined
conditions
Synchro-
check
Configuration logic circuits
en04000206_ansi.vsd
ANSI04000206 V2 EN
Figure 364: Application example showing a logic diagram for control of a circuit
breaker via configuration logic circuits
Figure 365 and figure 366 show other ways to control functions, which require steady
Enabled/Disabled signals. Here, the output is used to control built-in functions or external
devices.
1MRK 506 369-UUS - Section 15
Control
Line distance protection REL670 2.2 ANSI 743
Application manual
To Next Page
Loading...
