ABB RELION 620 Series Technical Manual page 785

1MAC504801-IB E
10.1.2
620 series ANSI
Technical Manual
The exclusion time setting is global for all inputs, but there is an individual counter for
each analog and binary channel of the disturbance recorder, counting the remaining
exclusion time. The user can monitor the remaining exclusion time with the Exclusion
time rem parameter of the corresponding analog or binary channel. The Exclusion time
rem parameter counts downwards.
Configuration
The disturbance recorder can be configured with PCM600 or any tool supporting the IEC
61850 standard.
The disturbance recorder can be enabled or disabled with the Operation parameter under
the Configuration/Digital fault recorder/General menu.
Analog channels are fixed except channel 4 which is selectable based on the Ground CT
option. The name of the analog channel is user-configurable. It can be modified it by
writing the new name to the Channel id text parameter of the corresponding analog
channel.
Any external or internal digital signal of the protection relay which can be dynamically
mapped can be connected to the binary channels of the disturbance recorder. These signals
can be, for example, the pickup and trip signals from protection function blocks or the
external digital inputs of the protection relay. The connection is made with dynamic
mapping to the binary channel of the disturbance recorder using, for example, SMT of
PCM600. It is also possible to connect several digital signals to one binary channel of the
disturbance recorder. In that case, the signals can be combined with logical functions, for
example AND and OR. The name of the binary channel can be configured and modified
by writing the new name to the Channel id text parameter of the corresponding binary
channel.
Note that the Channel id text parameter is used in COMTRADE configuration files as a
channel identifier.
The recording always contains all binary channels of the disturbance recorder. If one of
the binary channels is disabled, the recorded state of the channel is continuously FALSE
and the state changes of the corresponding channel are not recorded. The corresponding
channel name for disabled binary channels in the COMTRADE configuration file is
Unused BI.
To enable or disable a binary channel of the disturbance recorder, the Operation parameter
of the corresponding binary channel is set to "Enable" or "Disable".
The states of manual triggering and periodic triggering are not included in the recording,
but they create a state change to the Periodic triggering and Manual triggering status
parameters, which in turn create events.
Section 10
Recording functions
779