Control System Intrinsically Safe Digital Input and Output Modules

Control System Intrinsically Safe Digital Input and Output Modules


The UW5867 Control System Intrinsically Safe Digital Input and Output Modules from China UWNTEK can be directly connected to the dangerous side actuator to isolate and transmit electrical signals from the safe area to the dangerous area. UW5867 realizes the verification, latching, protection and output of single-channel digital input or single-channel digital output data. The module can be set as digital input or digital output according to the configuration.

This Control System Intrinsically Safe Digital Input and Output Modules has passed the inspection in accordance with GB3836.1 and GB3836.4 standards and obtained an explosion-proof certificate. It is suitable for installation and use in safe areas, and can be used with intrinsically safe equipment in Zones 0, 1 and 2 of explosive gas hazardous locations.

Through software configuration, it supports digital input or digital output;

As a digital input, the short-circuit current is about 5mA;

As a digital output, the maximum output capability is about 12V/45mA;

Online automatic diagnosis and operating status display, rapid identification of fault points, automatic identification of disconnections;

Complete isolation between modules and systems and between modules to keep out external interference;

Surge protection and online plug-in support circuit support module online plug-in and online replacement;

Low ripple, low temperature drift, high efficiency, high stability, high withstand voltage isolation power supply design, with multiple protections such as soft start, input short circuit protection, output power limit, and power distribution output current limit.

Technical Parameters:

parameter name Technical indicators
Rated input voltage 24VDC(18~36VDC)
input signal Switch, short circuit current is about 5mA
Output drive capability 12V/45mA
The output voltage Open circuit voltage 22~24V
Dielectric strength 2500Vac (1min)
Isolation impedance 20MΩ@500V
Dimensions 115mm×112mm×13mm
Installation Environment The on-site installation of the product must comply with the relevant provisions of the standard GB3836.15-2000 "Electrical Equipment for Explosive Gas Environments Part 15: Electrical Installation in Hazardous Locations (Except Coals and Mines)". The product is required to be installed in non-hazardous locations and must not be used in the surrounding environment. There are strong vibrations, impacts, and gases and dust that are corrosive to product components.
Note: For products that have passed the explosion-proof inspection, random replacement or modification of components and structures that affect the explosion-proof performance is not allowed.
working environment Ambient temperature: -20℃~60℃
Relative humidity: 10%~90%RH (no condensation)
Atmospheric pressure: 80~110KPa
Explosion-proof signs [Ex ia Ga] IIC
Intrinsically safe parameters A、B end:
IIC:Co=0.10uF, Lo=1.0mH;
IIB:Co=0.80uF, Lo=3.0mH;
IIA:Co=2.80uF, Lo=8.0mH。
Intrinsically safe parameter matching principle
UW6767Intrinsically safe parameter matching principle Intrinsically safe instrument parameters + cable parameters
U0 Ui
I0 Ii
P0 Pi
C0 Ci+Cc
L0 Li+Lc

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