• Allen-Bradley 1794-ID2
  • Allen-Bradley 1794-ID2
  • Allen-Bradley 1794-ID2
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Allen-Bradley 1794-ID2 FLEX I/O 2-Channel Incremental Encoder Module

Allen-Bradley 1794-ID2 FLEX I/O 2-Channel Incremental Encoder Module

Description

The Allen-Bradley 1794-ID2 is a high-speed, 2-channel incremental encoder counter module engineered for the FLEX I/O 1794 platform. This module functions as a high-speed pulse interface, converting raw mechanical rotational...

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Availability: Low stock: 10 left

SKU: 1794-ID2
Vendor: Allen-Bradley
Category: Incremental Encoder Module
Related Series:

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  • Genuine Guarantee: We supply only 100% original, brand-new, and factory-sealed industrial automation parts.
  • Full Coverage: Every component is backed by a 12-month comprehensive warranty from the date of purchase.
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Description

The Allen-Bradley 1794-ID2 is a high-speed, 2-channel incremental encoder counter module engineered for the FLEX I/O 1794 platform. This module functions as a high-speed pulse interface, converting raw mechanical rotational feedback into digital data for the programmable automation controller. It is designed for precision applications requiring high-speed counting, such as robotic positioning, conveyor synchronization, web-tension control, and continuous process monitoring. By processing pulses independently of the main controller scan cycle, the 1794-ID2 minimizes latency and improves tracking accuracy in high-speed industrial environments.

Features

  • Dual-Channel Processing: Features two independent high-speed counter channels, each supporting four optocoupled inputs for versatile signal evaluation.
  • Flexible Signal Configuration: Supports multiple operating modes including standard Quadrature (Phase A/B) and Up/Down count tracking.
  • Robust Isolation: Integrated 500 VAC continuous optical isolation protects internal circuitry from field-side electrical noise and ground potential differences.
  • Diagnostic Indicators: Equipped with 13 front-panel LEDs, including a bi-color system health indicator and 12 channel-specific status indicators for real-time troubleshooting.

Applications

The 1794-ID2 is widely utilized in automation systems where precise motion and position feedback are critical. Typical applications include:

  • High-speed conveyor line tracking and synchronization.
  • Robotic sorting and material handling cells.
  • Metal rolling mill speed and position control.
  • Packaging machinery and web-tension monitoring.

Technical Specifications

Model 1794-ID2
Product Line FLEX I/O 1794
Counter Channels 2
Inputs per Channel 4 (Optocoupled)
Max Counting Frequency 100 kHz
Nominal Input Voltage 12/24 VDC
Input Voltage Range 6.0 to 26.4 VDC
Backplane Current 5 mA at 5 VDC
Thermal Dissipation 17.1 BTU/hr at 26.4 VDC
Isolation 500 VAC continuous
Mounting 35 mm DIN Rail or Panel Mount

Installation Guidelines

  • Power Down: Always disconnect power from the FLEX I/O backplane before installing or removing the module.
  • Grounding: Ensure the DIN rail or mounting panel is properly grounded to provide a low-impedance path for EMI/RFI noise.
  • Shielding: Use shielded twisted-pair cabling for encoder signals to minimize interference in high-EMI environments.
  • Environment: This is an open-style device; it must be installed within a suitable industrial enclosure rated for the operating environment.
  • Ventilation: Maintain adequate clearance around the module to ensure proper thermal dissipation during operation.

FAQ

What is the maximum pulse frequency supported by the 1794-ID2?

The module supports a maximum counting frequency of 100 kHz.

Does this module support differential encoder signals?

Yes, the 1794-ID2 is designed to evaluate both complementary and non-complementary differential encoder signals using its optocoupled inputs.

What type of mounting does this module require?

The 1794-ID2 is designed for standard 35 mm DIN rail mounting or direct surface mounting on a sub-panel within an industrial enclosure.