GR-750x series
Control panel for addressable emergency
luminaires
Document number: 923750400_09_007
Date: 3/5/2022
Page: 25 of 71
[25]
3.6 Inputs
Use a separate cable to connect each input. It is recommended to use 2
−core shielded cables, not multicore
cables.
If a shielded cable is used, the cable’s shield must be connected only to the earth bar terminal inside
the panel.
Table 11
– Input triggered actions
TRIGGERED ACTION
DESCRIPTION
FUNCTION TEST
Starts a function test on the points of the selected zone.
INHIBIT
Sets all points of the selected zone in
inhibit mode
.
RESET PANEL FAULTS
Resets the active faults on the panel.
All input terminal connections come preinstalled with a 10kΩ resistor, between
INx
and its corresponding
negative terminal (marked
(
–)
on the board). This is done for continuous line monitoring and detection of open
and short circuit line problems. If an input is unused, the resistor must remain connected to the corresponding
terminals.
The input is detected as active when the resistance between its terminals is 1kΩ.There are four
1kΩ value resistor supplied with the panel and can be used to achieve the input activation.
The panel can detect the following input conditions:
Table 12
– Input states
STATE
DESCRIPTION
NORMAL
Closed circuit. The resistance between the terminals is about 10kΩ.
OPEN CIRCUIT
Problem with the line continuity between the input terminals.
SHORT CIRCUIT
Short circuit between the input terminals.
ACTIVE
The resistance between the terminals is 1kΩ.
Figure 15