5.4 Output matrix
5 Control functions
Technical description
206
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5.4.
Output matrix
By means of the output matrix, the output signals of the
various protection stages, digital inputs, logic outputs and
other internal signals can be connected to the output relays,
front panel indicators, virtual outputs etc.
There are two LED indicators named "Alarm" and "Trip" on the
front panel. Furthermore there are three general purpose LED
indicators – "A", "B" and "C"
available for customer-specific
indications. In addition, the triggering of the disturbance
recorder (DR) and virtual outputs are configurable in the
output matrix. See an example in Figure 5.4-1.
An output relay or indicator LED can be configured as latched
or non-latched. A non-latched relay follows the controlling
signal. A latched relay remains activated although the
controlling signal releases.
There is a common "release latched" signal to release all the
latched relays. This release signal resets all the latched output
relays and indicators. The reset signal can be given via a digital
input, via a keypad or through communication. Any digital
input can be used for resetting. The selection of the input is
done with the VAMPSET software under the menu "Release
output matrix latches". Under the same menu, the "Release
latches" parameter can be used for resetting.
Figure 5.4-1 Output matrix.
