Function blocking
Common signals function itself doesn't have blocking input signals. Blocking of tripping should be done
in each protection function settings.
Events and registers
The common signals function (abbreviated "GNSIG" in event block names) generates events and
registers from the status changes in START and TRIP. The user can select which event messages are
stored in the main event buffer: ON, OFF, or both.
The events triggered by the function are recorded with a time stamp and with process data values.
Table. 5.5.1 - 256. Event messages.
Event block name
Event names
GNSIG
Common Start ON
GNSIG
Common Start OFF
GNSIG
Common Trip ON
GNSIG
Common Trip OFF
5.5.2 Setting group selection
All relay types support up to eight (8) separate setting groups. The Setting group selection function
block controls the availability and selection of the setting groups. By default, only Setting group 1
(SG1) is active and therefore the selection logic is idle. When more than one setting group is enabled,
the setting group selector logic takes control of the setting group activations based on the logic and
conditions the user has programmed.
The following figure presents a simplified function block diagram of the setting group selection function.
Figure. 5.5.2 - 178. Simplified function block diagram of the setting group selection function.
A
AQ
Q-M257
-M257
Instruction manual
Version: 2.07
© Arcteq Relays Ltd
IM00021
341
Summary of Contents for AQ-M257
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