15.10.2 Application
M12445-3 v3
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
298 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 298 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-US
Figure 298: Application example showing a logic diagram for control of a circuit
breaker via configuration logic circuits
Figure
299 and figure 300 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 502 071-UUS A Section 15
Control
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 649
Application manual
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