Description

ABB DKTFM418B 3BHB015651P0001 High-Speed I/O Signal Interface Module for AC 800PEC

Technical Specifications

• Product Model: DKTFM418B 3BHB015651P0001
• Brand: ABB
• Warranty: One Year
• Input Voltage: 24 VDC backplane supply from AC 800PEC rack
• Operating Temperature: -25°C to +70°C
• Storage Temperature: -40°C to +85°C
• Response Time: Microsecond-level signal sampling, ≤1μs internal bus data transmission delay
• Protection Class: IP20 when mounted inside industrial control cabinet
• Accuracy Class: 16-bit high-precision analog signal conversion, ±0.05% measurement deviation
• Output Frequency: Up to 20kHz channel sampling frequency
• Rated Current Range: 0.4A maximum module operating current
• Communication Interface: AC 800PEC internal rack backplane bus, screw-type field terminal blocks
• Supported Protocols: ABB proprietary PEC backplane protocol, compatible with Control Builder M engineering platform
• Overload Capacity: 4kV reinforced galvanic isolation, built-in ESD, surge and reverse voltage protection
• Dimensions: 125mm × 75mm × 30mm, single DIN rail rack slot footprint
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Product Overview

The ABB DKTFM418B 3BHB015651P0001 is a dedicated high-speed signal conditioning and I/O interface module developed exclusively for the ABB AC 800PEC power electronic control system under the 800xA automation ecosystem. It serves as the critical signal bridge between field measurement devices and the PPD main processor unit, collecting and conditioning analog measurement values, digital interlock status, transformer CT/PT secondary signals, and temperature feedback from on-site power equipment.

This module addresses the core challenges of high-performance power conversion control systems. It implements channel-independent galvanic isolation to block severe electromagnetic interference generated by high-power inverters, SVC, STATCOM and excitation cabinets, preventing ground loop distortion and protecting the core controller from voltage transients. Integrated multi-point self-diagnosis circuits continuously monitor open circuits, short circuits and hardware anomalies on each channel, with front LED indicators delivering intuitive fault prompts to cut troubleshooting time. Its pluggable single-slot structure supports in-rack replacement without full system power-off, minimizing production interruption during equipment maintenance and retrofit.

Power plant electrical engineers, power electronics system integrators, grid stability control technicians and drive maintenance specialists gain practical value from this hardware. It ensures ultra-fast closed-loop control response for generator excitation regulation, grid-connected converters and reactive power compensation devices, improves the stability of power grid auxiliary control systems, and extends the service life of the entire AC 800PEC control rack.