Triconex DI 3506X 32 通道 TMR 数字输入模块

Triconex DI 3506X 32 channel TMR digital input module

Triconex   3506X.2.jpg

1、 Basic Information

Model: DI 3506X

Brand: Triconex (under Schneider, formerly Invensys)

Positioning: Tricon/Tricon CX SIS Safety Instrumented System Dedicated Triple Redundant Digital Input Module

Place of Origin: United States

Safety certification: T Ü V IEC 61508 SIL 3, IEC 61511 process safety standards

Architecture: TMR triple modular redundancy, single module failure does not affect the safe operation of the system, supports online hot swappable replacement

2、 Core electrical parameters

Channel specifications

Number of channels: 32 isolated digital inputs per module

Compatible signal types

24VDC wet contact (NPC/PNP proximity switch, solenoid valve feedback)

Dry contact (ESD emergency stop, pressure/liquid level/temperature switch, flame detector, valve position feedback)

Optional compatibility with 125VDC, 120/230VAC on-site switch signals

Level threshold (24VDC standard)

OFF：0～5VDC

ON: 15-32VDC (rated 24VDC, instantaneous maximum 36V)

Input impedance: typical 3-4 k Ω

Single channel input current: 5-25mA

response speed

OFF→ON：＜3ms

ON→OFF：＜2ms

Isolation performance (photoelectric isolation)

channel ↔  Channel: 1500V AC

On site circuit ↔  System backplane bus: 2500V AC, blocking interference and fault crosstalk

Power supply and power consumption

Power supply: Powered by the Tricon rack backplane, no external on-site power supply required

Maximum power consumption of the whole machine: about 8W

Triconex   3506X.1.jpg

3、 Diagnosis and indicator lights

Channel LED: 32 channels correspond to independent red indicator lights, lit=input closed (ON)

Module status light: Three state indicator lights for operation, fault, and communication

Built in full circuit diagnosis

Wire breakage detection (open circuit fault alarm)

Channel short circuit, ground/power short circuit diagnosis

Module internal circuit self diagnosis, TMR three channel voting verification

Real time reporting of faults to the controller, meeting SIL safety fault detection requirements

4、 Environmental and mechanical specifications

Working temperature: 0 ℃~+60 ℃ (standard inside the cabinet); Wide temperature version -20 ℃~+60 ℃

Storage temperature: -40 ℃ to+85 ℃

Humidity: 5% to 95% without condensation

Installation: Tricon host rack slot installation, matched with dedicated 50 pin terminal base plate (TBE-D5016, etc.)

Weight: Approximately 360g

Appearance: Standard Tricon I/O module size, black metal casing for heat dissipation

5、 Applicable scenarios

Oil and gas, refining, power plants, chemical SIS safety systems:

ESD emergency stop circuit switch quantity collection

Pressure/liquid level/temperature safety switch monitoring

Valve open/close feedback, flame detection, dry contact of combustible gas detector

Collection of unit interlocking, safety doors, emergency stop ropes, and manual fire alarm points

6、 Instructions for use on the computer (can it be directly used on the computer)

Brand new original module

The same series of Tricon CX/Tricon V9/V10 rack slots can be directly hot plugged and installed without additional configuration; Simply match the corresponding terminal base plate and prefabricated cable wiring, and the controller software configuration channel can be put into use.

Dismantling second-hand modules

Cannot be used directly on the computer, must complete:

32 channel on/off and insulation withstand voltage test

TMR Triple Redundancy Loop Voting Function Verification

Diagnosis of faults, full inspection of LED indicator lights

Check that there is no corrosion inside, no bulging of capacitors, and confirm that there are no hidden faults before installing the machine

Compatibility differentiation

DI3506X: 32 channel universal 24V DI;

Distinguish between the old DI3505 (16 channels) and DI3507 (high-voltage AC dedicated module), which are not interchangeable.

7、 Supporting accessories

Terminal Base Plate: TBE-D5016-TRI

Connecting cable: 4X00226 series prefabricated cable

Terminal block, safety barrier (optional for intrinsically safe explosion-proof scenarios)