3NC352.6 B & R Automation
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The B & R Automation 3NC352.6 is part of the System 2005 Controllers series and features 3 digital inputs, 1 digital output, and a 9-pin female DSUB connector. This controller operates with an input nominal voltage of 24 VDC, offers a path resolution of 0.01 millimeters, and has a total power draw of 4.0 watts. It includes an RS422 encoder interface and carries an IP20 protection rating.
Internal Product Review
The 3NC352.6 is a B & R Automation System 2005 controller with an RS422 encoder interface and IP20 protection. Path handling is especially precise, with 0.01 mm path resolution and ±25 ppm measurement accuracy. A 24 VDC sink input circuit supports straightforward integration, making this controller a strong choice for accurate motion feedback tasks.
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Product Description:
The 3NC352.6 module is produced by B & R Automation and belongs to the System 2005 Controllers series. It functions as an axis-oriented controller that merges incremental encoder feedback with discrete I/O so that motion sequences and machine states can be processed on the same board. In an automation cell, the device handles trajectory generation and synchronizes field signals, allowing a higher-level PLC to off-load time-critical tasks. The unit is connected through a backplane supply and communicates with neighboring modules through a compact carrier rail. This arrangement keeps the motion control hardware close to the rest of the control stack and supports modular cabinet layouts.
Three opto-isolated digital inputs accept 24 VDC sink signals, while 1 digital output uses a source topology to send machine commands. All four discrete points are routed through a 9-pin female DSUB connector beside the RS422 encoder port, which keeps field wiring grouped with the related axis interface. For position capture, the module can issue an initialization pulse as short as 1.6 µs, and its internal path processor tracks 3 channels simultaneously. Overall consumption stays within 4.0 W, enabling dense cabinet layouts, and environmental ingress protection complies with IP20. The combination of low power demand and compact connections supports installation in control cabinets where space is limited.
The path controller resolves movement to 0.01 mm, letting the machine achieve fine placement even on short strokes. Velocity is monitored with a granularity of 0.1 mm/s, which helps the control loop maintain stable feed rates during changing motion segments. Feedback sampling maintains a measurement accuracy of ±25 ppm, suitable for processes that cannot tolerate cumulative drift during prolonged operation. The sourcing output can drive sensors or status LEDs up to 20 mA, so additional amplifiers are unnecessary in most cabinets. This makes the module suitable for compact motion stations that need encoder processing and a small amount of local discrete control on the same board.
