بریر دیجیتال GM INTERNATIONAL Switch Proximity Repeater Line-Fault GMI D5034D

بریر D5034D

General Description:
The single and dual channel Switch/Proximity Detector Interface, D5034S and D5034D
is a high integrity repeater Barrier, designed to interface contacts or proximity detectors
(EN60947-5-6, NAMUR) located in Hazardous Area and is suitable for
applications requiring SIL 3 level (according to IEC 61508:2010 Ed. 2) in safety related
systems for high risk industries.
Field loop integrity and status are continuously and
directly monitored, in transparent mode, into the PLC, ESD, DCS using their existing
input line, without requiring an additional channel for line fault detection.
PLC / DCS can detect the following conditions:
0.5 to 1.3 mA Input open condition
2.0 to 6.0 mA Input close condition
0 to 0.4 mA Input fault condition (Line break)
6.5 to 8.0 mA Input fault condition (Short circuit)
These are automatically detected for proximity switches inputs.
For contact inputs is necessary to install end of line resistors close to the contacts