IAC

B&R X20DI4760

4 digital inputs Input module for NAMUR encoders Open line and short circuit detection Each input can be used as a counter input The module is used to transfer digital signals from NAMUR encoders according to EN 60947-5-6. In addition to NAMUR encoders, normal switches can also be used.

Lifecycle & replacement

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Technical specifications

Short description
I/O module4 NAMUR inputs, special function
General information
Diagnostics / Module run/errorYes, using LED status indicator and software
Diagnostics / Short circuitYes, using LED status indicator and software
Diagnostics / Open circuitYes, using LED status indicator and software
Power consumption / Bus0.01 W
Power consumption / Internal I/O1.5 W
Certifications / CEYes
Certifications / UKCAYes
Certifications / CRA (Cyber Resilience Act)In preparation
Certifications / ATEXZone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user's manual) FTZÚ 09 ATEX 0083X
Certifications / ULcULus E115267 Industrial control equipment
Certifications / HazLoccCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5
Certifications / DNVTemperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck)
Certifications / CCSYes
Certifications / LRENV1
Certifications / KRYes
Certifications / ABSYes
Certifications / BVEC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck
Certifications / KCYes
B&R ID code0x2105
Status indicatorsI/O function per channel, open-circuit and short-circuit detection per channel, operating state, module status
Additional power dissipation caused by actuators (resistive) [W]-
Event counters
Input frequency / 1 input activeMax. 1600 Hz
Input frequency / 2 inputs activeMax. 1100 Hz
Input frequency / 3 inputs activeMax. 870 Hz
Input frequency / 4 inputs activeMax. 680 Hz
Quantity4
Signal formSymmetrical square waves or corresponding minimum pulse duration
EvaluationEach positive edge, cyclic counter
Counter size8-bit
NAMUR inputs
Input delay / 1 input active≤310 µs
Input delay / 2 inputs active≤450 µs
Input delay / 3 inputs active≤570 µs
Input delay / 4 inputs active≤735 µs
Switching threshold / Area1.2 mA to 2.1 mA
Switching threshold / Switching hysteresisTyp. 300 µA
Open-circuit detection<350 µA
Input circuitFor NAMUR encoder per EN 60947-5-6
Insulation voltage between channel and bus500 Veff
Short-circuit detection>7 mA
Open-circuit voltage8.05 V ±0.33%
Switching amplifier internal resistance1 kΩ ±1%
Max. short-circuit current8.2 mA
Electrical properties
Electrical isolationChannel isolated from bus Channel not isolated from channel
Operating conditions
Mounting orientation / HorizontalYes
Mounting orientation / VerticalYes
Installation elevation above sea level / 0 to 2000 mNo limitation
Installation elevation above sea level / >2000 mReduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529IP20
Ambient conditions
Temperature / Operation / Horizontal mounting orientation-25 to 60°C
Temperature / Operation / Vertical mounting orientation-25 to 50°C
Temperature / DeratingSee section "Derating".
Temperature / Storage-40 to 85°C
Temperature / Transport-40 to 85°C
Relative humidity / Operation5 to 95%, non-condensing
Relative humidity / Storage5 to 95%, non-condensing
Relative humidity / Transport5 to 95%, non-condensing
Mechanical properties
NoteOrder 1x terminal block X20TB12 separately. Order 1x bus module X20BM11 separately.
Pitch12.5⁺⁰.² mm

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.