BECKHOFF ER1809-0022 ER Series EtherCAT Box Digital Input Module

Description

The BECKHOFF ER1809-0022 is a ruggedized 16-channel digital input EtherCAT Box designed for direct field acquisition of binary control signals. Housed in a heavy-duty zinc die-cast enclosure with an IP65, IP66, or IP67 protection rating, this module is built to withstand harsh industrial environments without requiring an additional protective control cabinet. It interfaces directly with sensors, acquiring state signals and transmitting them with low latency to the higher-level EtherCAT controller.

The module features eight M12 female sockets, with each connector accepting two independent 24 V DC digital inputs. The inputs correspond to EN 61131-2 Type 1/3 specifications and incorporate a 3.0 ms input filter to suppress contact bounce and external noise. Power for the connected sensors is sourced directly from the control voltage supply, with short-circuit protection implemented across all channels.

System communication is established via two M8 sockets, providing a high-performance EtherCAT interface with integrated diagnostic and status capabilities. For field-side power distribution, the ER1809-0022 includes standardized M8 power connections, allowing control voltage to be easily looped through to downstream modules.

Features

• 16 digital input channels for capturing 24 V DC binary signals in demanding field conditions
• Durable zinc die-cast housing providing IP65, IP66, and IP67 protection
• Eight M12 connection sockets (5-pin, A-coded), handling two inputs per connector
• Input characteristics compliant with EN 61131-2 Type 1 and Type 3 standards
• Integrated 3.0 ms input filter for signal stabilization and noise reduction
• Sensor supply sourced from control voltage with full short-circuit protection
• EtherCAT line interface utilizing shielded, screw-type M8 sockets
• Feed and downstream M8 power connections for efficient daisy-chaining
• Compact footprint with physical dimensions of 60 mm x 126 mm x 26.5 mm

Applications

• Decentralized signal collection in automated assembly lines and conveyor networks
• Machine tool monitoring and sensor integration in high-vibration environments
• Field-level I/O deployment in wet, dusty, or demanding washdown zones
• Material handling systems requiring direct mounting of IP67 modules on mechanical frames

Technical Specifications

Installation Guidelines

1. Ensure the system power supply is completely de-energized before beginning installation.
2. Inspect the zinc die-cast housing of the ER1809-0022 for any signs of physical damage or debris.
3. Mount the module securely using the two integrated fixing holes (3.5 mm diameter for M3 screws or 4.5 mm diameter for M4 screws) on a flat machine surface.
4. Connect the EtherCAT bus cables to the M8 sockets, ensuring the screw collars are fully tightened to maintain the IP rating.
5. Wire the 24 V DC power supply to the feed connector (M8 male, 4-pin). If multiple modules are used, loop the supply to the downstream module using the M8 female port.
6. Connect the digital sensors to the eight M12 sockets. Use A-coded 5-pin M12 cables, taking care to properly map both input channels available on each socket.
7. Apply power and verify that the status LEDs indicate normal EtherCAT communication and stable power supply status.

Compliance and Certifications

• CE
• UL