Product Short Description

Product Introduction

KEBA FB201 is an industrial high-speed fieldbus expansion communication module developed for KEBA KeControl motion control PLC platforms. It bridges internal K-Bus backplane bus and external EtherCAT industrial real-time fieldbus networks, supporting high-speed multi-axis servo drive communication, encoder signal acquisition, and distributed I/O expansion connection.
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KEBA FB201
KEBA FB201 - Image 2
KEBA FB201 - Image 3

Description

Technical Specifications

  • Rated Power Supply: 24 V DC ±20 % industrial control power
  • Maximum Power Consumption: 5 W
  • Internal Bus Interface: KEBA proprietary K-Bus backplane communication bus
  • External Fieldbus Interface: 1 × RJ45 EtherCAT port
  • EtherCAT Communication Speed: 100 Mbit/s full-duplex real-time Ethernet
  • Supported Encoder Signal Types: Incremental A/B/Z, SSI absolute, SinCos analog encoders
  • Maximum Supported Motion Axes: 4 independent closed-loop encoder axes per module
  • Physical Module Dimensions: 96 mm × 96 mm × 60 mm card form factor
  • Module Net Weight: 0.45 kg
  • Protection Class: IP20 (open-frame rack card variant) / IP65 sealed housing variant
  • Operating Temperature Range: -20 °C ~ +60 °C
  • Storage Temperature Range: -40 °C ~ +70 °C
  • Humidity Tolerance: 5 % – 95 % RH non-condensing
  • Certifications: CE, UL, RoHS, IEC 61131-3, IEC 61508 SIL2

Function Features

  1. Bi-directional high-speed data exchange between internal K-Bus control core and external EtherCAT fieldbus
  2. Real-time multi-axis encoder position feedback signal processing with hardware signal filtering
  3. Hot-swappable rack card design for online module replacement without system shutdown
  4. Integrated full diagnostic LED array for power, bus communication, axis fault, EtherCAT link status
  5. Native support for KEBA KeMotion Studio programming software axis configuration tools
  6. Hardware short-circuit and overcurrent protection for all external encoder signal terminals
  7. Deterministic microsecond cycle synchronization for multi-axis coordinated motion control

Performance Parameters

  • EtherCAT bus cycle minimum latency: ≤ 1 μs real-time transmission delay
  • Maximum encoder pulse frequency processing: 2 MHz incremental encoder input
  • Internal K-Bus data throughput: 20 Mbit/s bidirectional bandwidth
  • Maximum EtherCAT slave device quantity per FB201 module: 32 slave nodes
  • Signal processing calculation cycle: 1 ms minimum user-configurable motion control loop

Material Composition

  • Front panel: Black UL94-V0 flame retardant ABS plastic with laser-printed status labeling
  • Main PCB: High-temperature FR4 fiberglass circuit board with anti-corrosion conformal coating
  • Backplane connector: Gold-plated multi-pin beryllium copper contact assembly
  • Signal terminal blocks: Spring-cage nickel-plated copper insulated terminal connectors

Structure Characteristics

  • Standard vertical plug-in Eurocard rack card design with locking retention levers
  • Separate isolated circuit zones for internal backplane bus, EtherCAT communication, and encoder analog signals
  • Passive vertical slotted heat dissipation vents for natural convection cooling

Working Principle

The module receives motion control command datasets from the main KEBA PLC CPU via internal K-Bus backplane bus, packages control data into standard EtherCAT frame format, and transmits frames to external servo drives and distributed I/O nodes over 100 Mbit/s Ethernet. Encoder position feedback signals from field servo motors are captured via dedicated hardware signal processing circuits, converted to standardized digital position values, and transmitted back to the main control CPU through the K-Bus internal bus. Hardware synchronization logic aligns all axis sampling cycles to maintain coordinated multi-axis motion precision.

Advantage Highlights

  1. Microsecond-level deterministic EtherCAT communication eliminates motion control jitter
  2. Integrated multi-type encoder signal processing removes separate encoder interface hardware
  3. SIL2 safety certification permits deployment on semi-safety critical automation machinery
  4. Hot-swap design minimizes production downtime during module maintenance replacement
  5. Native compatibility with full KEBA KeControl C2/C3 motion control product ecosystem
  6. Compact card form factor reduces control cabinet rack space occupancy

Applicable Industries

Industrial robotics assembly lines, high-speed packaging machinery, CNC metal cutting machine tools, automated material handling logistics equipment, textile weaving automated looms, injection molding machinery motion control

Installation Requirements

  1. Install exclusively on KEBA KeControl C2/C3 dedicated K-Bus backplane rack
  2. Maintain minimum 10 mm vertical airflow clearance above and below each FB201 module
  3. EtherCAT communication cables must use CAT5e shielded industrial Ethernet cable
  4. 24 V DC power supply must provide isolated control power with maximum 50 mV ripple voltage
  5. Encoder signal wiring requires shielded twisted-pair cable with single-end cabinet grounding

Usage Notes

  1. Do not connect non-EtherCAT Ethernet devices to RJ45 fieldbus port; incompatible hardware causes bus communication failure
  2. Re-upload motion control axis configuration program after every FB201 module replacement
  3. Avoid mounting adjacent to high-power servo drive power units to reduce electromagnetic interference
  4. Conduct annual communication latency performance testing to maintain motion precision specifications
  5. IP65 sealed housing variant required for installation in dust/water spray production environments

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