Input Settings Menu - DEMA CPM 310 G User Manual

Digital overcurrent protection relay
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Input Settings Menu

Input Settings Menu
is a control menu where the
existing 7 programmable inputs of DEMA CPM 310 G
relays are programmed and decided how to behave.
The picture at the top displays the welcome screen and
the picture beneath shows the rest of the contents of
Input Settings Menu
the
.
Programmable inputs are identical and independent of
each other. Each input accepts one of any of the 25
functions listed below:
 Passive,
 Unlatch,
 52a (normally open auxiliary contact signal),
Main Screen » Menu »
 52b (normally closed auxiliary contact signal),
Automatic Control Settings »
 CB Positi. (CB Position),
Input Settings
 Start tAux1 (auxiliary timer no.1),
 Start tAux2 (auxiliary timer no.2),
 Blocking 1 (Blocking selectivity input no.1),
 Delay Sel1 (Delaying selectivity input no.1),
 Start Wave (Start Waveform Recording),
 Cold L. Pi. (Cold Load Pickup),
 Spr. Fail (CB Charging Spring Failure),
 Group Sel. (Settings Group Altering),
 ARC Block. (Block Auto-recloser),
 %Θ Reset (Reset Thermal Monitor),
 TripCirSup (Trip Circuit Supervision),
 Start CBF (Start CB Failure Alarm),
 Reset LED,
 Press.Trip (Pressure Trip),
 Buch.Alarm (Buchholz Alarm),
 Buch.Trip (Buchholz Trip),
 Temp.Alarm (Temperature/Thermometer Alarm),
 Temp.Trip (Temperature/Thermometer Trip),
 Blocking 2 (Blocking selectivity input no.2), and
 Delay Sel2 (Delaying selectivity input no.2).
The last two line on the picture to the left controls and
displays the activation options of the inputs. The
sample picture shows that all 7 inputs are set to
activate when a voltage is applied to their terminals
("1"). If any of the inputs are set to activate in the
absence of a signal ("0"), the activating behavior of
that input will change in the opposite manner,
activating with the loss of voltage across its terminals.
Note that the default settings for the input activation
controls are 1111111; resulting in the activation of
each of the inputs when a voltage is applied to its
terminals. □
- 107 -

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