Siemens SIPROTEC 7SJ62 Instruction Manual page 316

Multi-functional protective relay with bay controller

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Table of Contents

Internal / pseudo

− Commands (e.g. operation of circuit breakers, etc.)

− Step Commands (e.g. raising and lowering transformer LTCs)

− Set-point Commands with configurable time settings (Petersen coils)

These commands do not directly operate binary outputs. They serve to initiate internal

functions, simulate changes of state, or to acknowledge changes of state.

− Marking/Tagging commands are used to manually overwrite or set status functions

normally controlled by binary inputs.

− Additionally, Tagging commands are issued to establish internal settings, such as

switching authority (remote vs. local), parameter set changeover, data transmission

block to the SCADA interface, and measured value set-points.

− Acknowledgment and resetting commands for setting and resetting internal buffers.

− Status Information commands:

− Controlling activation of binary input status

− Binary Output Blocking

7SJ62 Manual

C53000-G1140-C121-1