Feedback monitoring
Command processing time monitors all commands with feedback. Parallel to the command, a monitoring time
period (command runtime monitoring) is started which checks whether the switchgear has achieved the
desired final state within this period. The monitoring time is stopped as soon as the feedback information
arrives. If no feedback information arrives, a response
Time Limit Expired
appears and the process is
terminated.
Commands and their feedbacks are also recorded as operational indications. Normally the execution of a
command is terminated as soon as the feedback information (FB+) of the relevant switchgear arrives or, in
case of commands without process feedback information, the command output resets.
In the feedback, the plus sign means that a command has been positively completed. The command was as
expected, in other words positive. The "minus" is a negative confirmation and means that the command was
not executed as expected.
Command output/switching relays
The command types needed for tripping and closing of the switchgear or for raising and lowering transformer
taps have been defined during the configuration, see also SIPROTEC 4 System Description.
Information List
No.
Information
Type of
Informa-
tion
Comments
-
>Door open
SP
>Cabinet door open
-
>CB wait
SP
>CB waiting for Spring charged
-
>Err Mot U
SP
>Error Motor Voltage
-
>ErrCntrlU
SP
>Error Control Voltage
-
>SF6-Loss
SP
>SF6-Loss
-
>Err Meter
SP
>Error Meter
-
>Tx Temp.
SP
>Transformer Temperature
-
>Tx Danger
SP
>Transformer Danger
Protocol
During the processing of the commands, independent of the further message routing and processing,
command and process feedback information are sent to the message processing centre. These messages
contain information on the cause. With the corresponding allocation (configuration) these messages are
entered in the event list, thus serving as a report.
Prerequisites
A listing of possible operating messages and their meaning as well as the command types needed for tripping
and closing of the switchgear or for raising and lowering of transformer taps are described in the SIPROTEC 4
System Description.
Information List
No.
Information
Type of
Informa-
tion
Comments
-
SysIntErr.
IntSP
Error Systeminterface
2.10.3.2
2.10.4
2.10.4.1
Functions
2.10 Command Processing
SIPROTEC 4, 7VK61, Manual
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C53000-G1176-C159-5, Edition 05.2018
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