Digital guide
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BAUMÜLLER BM4-F-IEE-01
The BM4-F-IEE-01 module acts as a distributed I/O node on the EtherCAT network. The BM4 servo drive (master) cyclically reads digital/analog input states and writes digital/analog output states via the EtherCAT protocol. Each EtherCAT frame processes all I/O data within a single network cycle (125 µs to 1 ms depending on configuration). The module’s internal microcontroller handles signal conditioning, A/D and D/A conversion, and galvanic isolation, providing the servo drive with real-time field data for motion control logic and safety functions.
Detailed content
Model Code Breakdown:
- BM4 = Baumüller BM4 Series
- F = Function Module / Option
- IEE = Interface External (I/O Expansion)
- 01 = Version 1
Technical Specifications:
| Parameter | Value |
|---|---|
| Digital Inputs (DI) | 8 Channels (24 V DC, PNP/NPN Selectable) |
| Digital Outputs (DO) | 8 Channels (24 V DC, 0.5 A per Channel, PNP) |
| Analog Inputs (AI) | 2 Channels (0-10 V DC / 4-20 mA, 16-Bit Resolution) |
| Analog Outputs (AO) | 2 Channels (0-10 V DC / 4-20 mA, 16-Bit Resolution) |
| Communication Interface | EtherCAT (Primary), PROFINET RT (Optional) |
| Supply Voltage | 24 V DC ±10% |
| Current Consumption (Module) | Maximum 1.5 A |
| Operating Temperature | 0°C to +55°C |
| Protection Rating | IP20 (Cabinet Mounting) |
| Dimensions (W × H × D) | 120 mm × 100 mm × 45 mm |
| Weight | Approximately 0.45 kg |
| Mounting | DIN Rail (EN 60715, 35 mm Top Hat Rail) |
Functional Features:
- Expanded I/O Capacity — Adds 8 DI / 8 DO / 2 AI / 2 AO to BM4 servo drive system
- EtherCAT Real-Time Communication — Cycle times down to 125 µs for deterministic motion control
- Galvanic Isolation — 1500 V DC isolation between field side and controller side
- Diagnostic LEDs — Per-channel status indication (Input/Output Active)
- Parameterization — Fully configurable via BM4 Servo Drive Software (Baumüller ProDrive)
- Hot-Swap Capable — Can be replaced without powering down the system (with EtherCAT)
Structure & Material Composition:
- Housing: Polycarbonate (PC), UL94 V-0 Rated, Gray (RAL 7035)
- PCB: FR-4, Conformal Coated (IP20 Protection)
- Connectors: Screw-Terminal Blocks (5.08 mm Pitch), Pluggable
- DIN Rail Clip: Steel, Zinc-Plated
Working Principle:
The BM4-F-IEE-01 module acts as a distributed I/O node on the EtherCAT network. The BM4 servo drive (master) cyclically reads digital/analog input states and writes digital/analog output states via the EtherCAT protocol. Each EtherCAT frame processes all I/O data within a single network cycle (125 µs to 1 ms depending on configuration). The module’s internal microcontroller handles signal conditioning, A/D and D/A conversion, and galvanic isolation, providing the servo drive with real-time field data for motion control logic and safety functions.
Applicable Industries:
- Machine Tool Control Systems
- Packaging Line Automation
- Material Handling Systems
- Robotics Cells
- Process Automation
Installation Requirements:
- Mounting: DIN Rail 35 mm (EN 60715), Horizontal or Vertical
- Wiring: Maximum 2.5 mm² for digital I/O, Shielded for analog I/O
- EtherCAT Cable: Standard CAT5e/CAT6 Shielded, Maximum 100 m Segment Length
- Ambient Temperature: 0°C to +55°C (No Direct Sunlight)
- Ventilation: Minimum 10 mm Clearance on All Sides
Usage Precautions:
- Do not exceed 24 V DC ±10% on supply — overvoltage damages module
- Analog input impedance: 100 kΩ (Voltage) / 250 Ω (Current) — match source impedance
- Do not mix PNP and NPN sensors on the same input group without configuration
- EtherCAT termination resistor must be enabled on the last node in the chain
- Maximum 64 EtherCAT nodes per segment (including master)
