Types Of Commands; Description; Command Sequence - Siemens SIPROTEC 4 7SJ61 Manual

Functions
2.18 Breaker Control
No. Information
- GndSw Cl.
- UnlockDT
- Q2 Op/Cl
- Q2 Op/Cl
- Q9 Op/Cl
- Q9 Op/Cl
- Fan ON/OFF
- Fan ON/OFF
31000 Q0 OpCnt=
31001 Q1 OpCnt=
31002 Q2 OpCnt=
31008 Q8 OpCnt=
31009 Q9 OpCnt=
2.18.2

Types of Commands

In conjunction with the power system control several command types can be distinguished for the device:
2.18.2.1

Description

Commands to the Process
These are all commands that are directly output to the switchgear to change their process state:
•
Switching commands for controlling the circuit breakers (not synchronized), disconnectors and ground
electrodes
•
Step commands, e.g. raising and lowering transformer LTCs
•
Set-point commands with configurable time settings, e.g. to control Petersen coils
Internal / Pseudo Commands
They do not directly operate binary outputs. They serve to initiate internal functions, simulate changes of
state, or to acknowledge changes of state.
•
Manual overriding commands to manually update information on process-dependent objects such as
annunciations and switching states, e.g. if the communication with the process is interrupted. Manually
overridden objects are flagged as such in the information status and can be displayed accordingly.
•
Tagging commands (for "setting") of the information value of internal objects, for example switching
authority (remote/local), settings group switching, data transmission block and deleting/presetting
metered values.
•
Acknowledgment and resetting commands for setting and resetting internal buffers or data states.
•
Information status command to set/reset the additional information "information status" of a process
object, such as:
– Input blocking
– Output blocking

Command Sequence

2.18.3
Safety mechanisms in the command sequence ensure that a command can only be released after a thorough
check of preset criteria has been successfully concluded. Standard Interlocking checks are provided for each
220
Type of Comments
Informa-
tion
IntSP Interlocking: Ground switch Close
IntSP Unlock data transmission via BI
CF_D2 Q2 Open/Close
DP Q2 Open/Close
CF_D2 Q9 Open/Close
DP Q9 Open/Close
CF_D2 Fan ON/OFF
DP Fan ON/OFF
VI Q0 operationcounter=
VI Q1 operationcounter=
VI Q2 operationcounter=
VI Q8 operationcounter=
VI Q9 operationcounter=
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016