Product Specification – X20DC4395

1. General Information

• Manufacturer: B&R Industrial Automation (ABB Group)

• Part Number: X20DC4395

• Product Type: Multifunctional Counter & Encoder Interface Module

• Product Series: X20 System

• B&R ID-Code: 0x1CC5

• Certifications: CE, UKCA, cULus, ATEX Zone 2, EAC, DNV GL, ABS, BV, LR, CCSB& R Industrial Automation

• Product Status: Active (Mass Production)

• Protection Class: IP20

• Module Width: 25 mm

• Country of Origin: Austria

• Power Requirements: 24 VDC (-15% / +20%)

2. Product Overview

3. Technical Specifications

3.1 SSI Absolute Encoder Interface

• Channels: 2 channels

• Signal Type: 24 VDC, asymmetrical (single-ended)

• Max. Transfer Rate: 125 kbit/s

• Counter Size: 32-bit

• Encoder Coding: Supports Gray and Binary code

• Encoder Power Supply: Internal 24 VDC, max. 600 mA (short-circuit protected)

• Clock Output (CLK): Max. 100 mA current

3.2 Incremental Encoder Interface

• ABR Incremental Encoders: 2 channels, 24 VDC, asymmetrical

• AB Incremental Encoders: 4 channels, 24 VDC, asymmetrical

• Max. Input Frequency: 100 kHz

• Resolution / Evaluation: 4× quadrature decoding

• Counter Size: 16/32-bit high-speed counter

• Encoder Power Supply: Internal 24 VDC, max. 600 mA (short-circuit protected)

3.3 Event Counter & PWM Functions

• Event Counters: 8 channels, 24 VDC

• Counter Input: Square wave pulses, evaluation on each edge

• Max. Input Frequency: 100 kHz

• PWM Outputs: 4 channels, 24 VDC

• Time Measurement: Per-channel, configurable for rising/falling edges

• Relative Timestamp: High-precision time stamping for events

3.4 Electrical Characteristics

• System Supply: 24 VDC (-15% / +20%) via X20 backplane

• Power Consumption:

  • Bus: 0.01 W

  • Internal I/O: Typ. 1.5 W

• Isolation: 500 Veff (field-side vs. system bus)B& R Industrial Automation

• Input Type (Digital): IEC 61131-2 Type 1

• Input Current: Approx. 1.3 mA @ 24 V

• Input Resistance: 18.4 kΩ

• Wiring: Shielded cables mandatory for all signal linesB& R Industrial Automation

3.5 Mechanical & Environmental

• Mounting: Standard 35 mm DIN rail, hot-swap capableB& R Industrial Automation

• Operating Temperature:

  • Horizontal: -25 °C ~ +60 °C

  • Vertical: -25 °C ~ +50 °CB& R Industrial Automation

• Storage Temperature: -40 °C ~ +85 °CB& R Industrial Automation

• Relative Humidity: 5% ~ 95%, non-condensingB& R Industrial Automation

• Vibration/Shock: Compliant with IEC 60068 (industrial rating)B& R Industrial Automation

3.6 Diagnostics & Status

• Status Indicators: Channel-specific LEDs for I/O activity, module status, and errors

• Diagnostics: Comprehensive module, channel, and output diagnostics via software & LEDs

• Monitoring: Encoder power supply voltage supervision

4. Key Features

• Multifunctional Design: Supports SSI, ABR, AB encoders, event counters, and PWM simultaneously

• High Channel Density: 2 SSI, 2 ABR, 4 AB, 8 counters, or 4 PWM in 25 mm width

• High-Speed Performance: Up to 100 kHz input frequency & 4× evaluation

• Integrated Power: 24 V/600 mA supply for encoders with short-circuit protection

• Precision Functions: Built-in time measurement and relative timestamping

• Galvanic Isolation: 500 V isolation between field and system for safetyB& R Industrial Automation

• Industrial Robustness: Wide temperature range, EMC, and hazardous location certificationsB& R Industrial Automation

• Full Compatibility: Seamless integration with all X20 CPUs and base modulesB& R Industrial Automation

• Software Configurable: Fully programmable via B&R Automation StudioB& R Industrial Automation

5. Typical Applications

• Multi-axis position feedback with absolute (SSI) and incremental encoders

• High-speed pulse counting and frequency measurement in complex machinery

• Precision motion control and synchronous operation in printing & packaging

• Time-stamped event logging and process monitoring

• Pulse-width modulation (PWM) for speed control or proportional actuators

• Material handling, robotics, and automated assembly lines

• Applications requiring mixed encoder interfaces and counter functions

6. Compatibility & Ordering

• Compatible with: All X20 CPU and base modulesB& R Industrial Automation

• Recommended Terminal Block: X20TB1F (or suitable X20 terminal block)B& R Industrial Automation

• Configuration Software: B&R Automation Studio (version 4.5 or later)B& R Industrial Automation

• Order Code: X20DC4395