B&R 3DO479.6 2005 Digital Output Module

Product Overview

The B&R 3DO479.6 (3DO 479.6) is a high-density digital output module designed for the B&R 2005 automation platform. This unit provides 16 transistor outputs at 24 VDC, organized into two electrically isolated groups of 8 outputs each. Engineered for critical industrial tasks such as sequence control, valve actuation, and signal switching in manufacturing and assembly lines, the module offers a load capacity of 0.5 A per channel. Its robust isolation design enhances system reliability by minimizing cross-channel interference and protecting the control bus from transient electrical faults, thereby ensuring consistent uptime in intensive automation environments.

Technical Configuration

The module architecture is optimized for space-efficient control cabinet layouts, requiring a standard 20-pin terminal block for field wiring. The outputs are designed for high-speed switching of 24 VDC loads, with internal logic processing ensuring synchronization across all 16 channels. The 3DO479.6 features clear status indication, with individual LEDs for each channel providing immediate visual feedback on the operating state of the outputs. To ensure flexibility in wiring preference, the module supports both screw clamp and cage clamp connectivity via the specific 3TB170 series terminal blocks. Electrical isolation is maintained between the two output groups, allowing for distinct voltage potential management or separation of power circuits for safety-relevant sub-systems.

Technical Specifications

FAQs

Is the terminal block included with the 3DO479.6 module?

No, the 3TB170 series terminal block is a mandatory accessory and must be ordered separately. You can choose between the 3TB170.9 (screw clamps) or the 3TB170.91 (cage clamps) based on your site requirements.

Can I mix different voltage groups on this module?

The module features two electrically isolated output groups. While both operate on 24 VDC, the isolation between groups allows you to maintain separate power distribution circuits for different sections of your machine, enhancing overall fault tolerance.

What is the switching capacity per channel?

Each of the 16 transistor outputs is rated for a continuous current of 0.5 A at 24 VDC. Ensure that connected loads do not exceed this threshold to prevent thermal damage to the output transistors.

Installation and Operational Guidelines

• Terminal Selection: When selecting the 3TB170.9 or 3TB170.91 terminal blocks, consider the vibration profile of your installation environment. Cage clamp terminals (3TB170.91) are generally preferred in high-vibration applications, such as near high-speed motors or reciprocating machinery, as they maintain constant pressure on the conductor without requiring periodic retightening.
• Wiring Standards: Ensure that the power supply providing the external 24 VDC is properly filtered and regulated. Since the module shares a common potential within each output group, avoid running high-current inductive loads (like large solenoid valves) without proper flyback diodes or surge suppression, as inductive spikes can cause erratic behavior in the switching transistors.
• Thermal Management: While the internal power consumption is minimal at 1.0 W, ensure that the 2005 system rack is installed in a location with adequate convective airflow. Avoid blocking the ventilation slots on the module housing, especially in cabinets operating at the upper limit of the ambient temperature range.