EJ2809
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The EJ2809, part of Beckhoff's EJ EtherCAT Plugins series, is equipped with 16 outputs suitable for ohmic, inductive, and lamp loads. It operates on a rated load voltage of 24 V DC (-15%/+20%) and provides a maximum output current of 0.5 A per channel. With reverse voltage protection, it ensures reliable performance.
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Product Description:
The EJ2809 EtherCAT plug-in module is a Digital output terminal manufactured by Beckhoff that is designed for integration into industrial automation systems. To facilitate efficient machine production and simplified wiring, Beckhoff manufactures modular I/O solutions that allow easy connection between automation controllers and field devices.
With a maximum output current of 0.5 A and protection against short circuits, the EJ2809 EtherCAT plug-in module boasts sixteen digital output channels. Connections to ohmic, inductive, and light loads are all within the module's capabilities. Overload, short-circuit, and reverse polarity protection are all included in each channel. The rated load voltage that the module can withstand is 24 V DC, and its operating voltage range is -15% to +20%. The standard switching duration for turning it on is 60 µs, and for turning it off, it is 300 µs. The module provides easy status monitoring with 16 channels' LED indications and 500 V electrical isolation between the E-bus and field potential. The module has a short-circuit current of less than 2 A and a breaking energy per channel of less than 150 mJ. Condensation is impossible at humidity levels up to 95%, and it weighs just around 30 grams.
A signal distribution board installs the EJ2809 EtherCAT plug-in module and supplies field connectors and application-specific wiring. Two 20-pin socket strips allow users to connect the module, and its mechanical coding prevents incorrect installation. Its compact enclosure, measuring 12 mm x 66 mm x 55 mm, complies with rules for electromagnetic compatibility and vibration/shock resistance. The architecture of the module makes it ideal for industrial automation applications that need high-density digital outputs. It helps with efficient serial machine manufacture and reduces wiring effort.
Frequently Asked Questions about EJ2809:
Q: How does EJ2809 indicate channel signal states?
A: The plug-in module uses individual LEDs for each output channel. These LEDs provide immediate visual feedback on the status of every output.
Q: Why does EJ2809 support multiple load types?
A: The plug-in module is designed for ohmic, inductive, and lamp loads to provide flexibility in automation applications. This allows integration with diverse field devices.
Q: Does EJ2809 provide electrical isolation between the E-bus and the field?
A: The plug-in module offers 500 V electrical isolation between the E-bus and field potential. This ensures safe operation and protects control electronics.
Q: How does EJ2809 handle short-circuit conditions?
A: The plug-in module outputs are short-circuit proof with a typical short-circuit current of less than 2 A. This protects the module and wiring.
Q: Why does EJ2809 include reverse polarity protection?
A: The plug-in module features reverse polarity protection to avoid module damage if supply connections are reversed. This enhances installation safety.
