ZIV 7IRD-A, Инструкция по эксплуатации

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Chapter 6. Description of Operation of Protection Subsystem
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
6-38
6.15.2 Auxiliary Outputs and Trip Contact Outputs

Auxiliary Outputs
The 7IRD-A/J/M models have 8 physical outputs, seven configurable, and 8 virtual outputs,
seven configurable. If there is an enlargement trip coil circuit, the virtual signal will be physical
signals.
The terminal unit protection, reclosing and monitoring functions generate a series of Logic
Output Signals during terminal unit operation. Each of these signals has either a “True” or
“False” value and this status (or its negation by using the “not” input(s) to the “OR” and “AND”
logic gates) can be used as an input to either of the combinational logic gates shown in the
following figure. The desired final “AND” or “OR” output from the logic cell can then be
connected to any one of the seven programmable Auxiliary Contact Outputs (AUX-1 through
AUX-7) available in the terminal unit.
Each block has 8 possible input signals. One of them is an
OR gate (one activated signal
activates the output) and the other is an AND gate (all signals are needed to activate the
output). Between these two blocks both OR and AND operations can be executed. To the result
of this operation, can be applied the option to produce a pulse signal or not, in the following
manner.

Without Pulses : setting the pulse timing at “0”, the auxiliary contact output is active while
the signal that has activated it lasts.

With Pulses : once the auxiliary contact output has been activated, it maintains itself the
set time independently from the fact that the signal which generated it becomes not
longer active or stay active during a longer period.
Figure 6.15 Auxiliary Contact Output Logic Cell Block Diagram.