3DM476.6 REV.C0 B & R Automation
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The 3DM476.6 REV.C0 is a digital controller from B & R Automation and part of the System 2005 Controllers series. It provides 16 digital inputs and 16 digital outputs, both operating with a nominal voltage of 24 VDC or 24 VAC. The output modules feature a per-point current of 0.4 Amps with a maximum switching frequency of 500 Hz and a total module output current of 4.8 Amps.
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Product Description:
The 3DM476.6 REV.C0 is a discrete input/output expansion module manufactured by B&R Automation for the System 2005 Controllers series. Installed on the controller backplane, it supplies additional digital channels so that production lines can read proximity switches, monitor limit sensors, and drive relay coils or solenoid valves without separate interface boards. By concentrating field connections inside the cabinet, the unit streamlines wiring and gives the PLC real-time visibility and actuation capability for repetitive machine sequences in industrial automation.
Its housing carries the IP20 degree of protection, indicating finger-safe terminals for enclosure-mounted operation. The module offers 16 digital inputs organized into four galvanically separated groups, and each group accepts signals through a sink or source circuit. The inputs tolerate up to 30 VDC / 30 VAC transient levels and are rated for 24 VDC / 24 VAC nominal logic. Each channel presents an input resistance of 4.8 kΩ, which limits current drawn from field devices and reduces heat generation across the board. All input lines enter through a 25-pin DSUB socket positioned on the upper edge of the module.
On the output side, the card furnishes 16 transistor switches that share an internal power rail yet draw only 2.5 W from the controller backplane. The collective load that can be sourced to field coils is 4.8 A, and each terminal is limited to 0.4 A to prevent trace overheating, while devices that remain wired during a de-energized state experience only 0.3 mA of off-state leakage. Output voltage follows the 24 VDC system bus, and the transistor array can toggle loads at frequencies up to 500 Hz for fast indexing tasks. This switching capability supports repetitive machine cycles that require stable digital output behavior.
Frequently Asked Questions about 3DM476.6 REV.C0:
Q: How many digital inputs are available on the 3DM476.6 REV.C0 controller?
A: The 3DM476.6 REV.C0 provides 16 digital inputs for connecting field signals.
Q: What is the total module output current capacity of the 3DM476.6 REV.C0?
A: This controller offers a maximum module output current of 4.8 A across all output channels.
Q: What type and voltage are the digital outputs on the 3DM476.6 REV.C0 module?
A: The digital outputs of this unit are transistor type with a nominal voltage of 24 VDC.
Q: What is the maximum current supplied per output point on the 3DM476.6 REV.C0?
A: Individual output points can supply up to 0.4 A each while switching loads.
Q: What kind of upper connector does the 3DM476.6 REV.C0 module use?
A: The 3DM476.6 REV.C0 features a 25-Pin DSUB socket as its upper connector for secure cabling.
