2AI300.61-010 B & R Automation
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The B & R Automation 2AI300.61-010 is part of the System 2010 Controllers series and features 16 voltage inputs with a nominal input range of ±10 V and resolution of 12 bits. The controller provides an accuracy of ±0.25% at 20°C and a common mode rejection of 40 dB at 50 Hz. Its dimensions are 285 mm in height, 40 mm in width, and 185 mm in depth, with maximum power consumption of 9 W.
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Product Description:
The 2AI300.61-010 analog input module is produced by B & R Automation and belongs to the System 2010 Controllers series. It is installed in control racks to digitize voltage signals for the CPU so that process variables such as pressure, flow, or position can be monitored and used for closed-loop regulation in industrial machinery. Each channel is updated within 1 ms, so the card can track rapid changes while still fitting within typical PLC task times.
Its nominal measurement window is centered on ±10 V, letting standard process transmitters be wired without additional scaling. An over-range tolerance of ±20 V is allowed so brief transients do not trigger diagnostic faults. The inputs present 1 MΩ of resistance, minimizing load on high-impedance sources. Signal conversion is handled by a 12-bit successive-approximation ADC that provides 12-bit resolution, producing 4096 discrete values per scan. At 20 °C, the basic error does not exceed ±0.25 %, keeping uncertainty low in stable cabinet environments. Individual channels share a common reference, yet the assembly is galvanically separated from the controller backplane, preventing ground-loop currents between field wiring and the processor.
The front connector brings in 16 voltage inputs, each protected by a first-order hardware filter with a cutoff of 400 Hz to reduce aliasing when fast machine actuators switch. Mains interference is further attenuated by a common-mode rejection ratio of 40 dB at 50 Hz, limiting line-frequency noise that could otherwise distort low-level measurements. Across the full 0 to 60 °C operating span, the total error remains within ±0.5 %, so field accuracy stays predictable even in warm enclosures. The electronics draw a maximum of 9 W, a value that can be used to size the cabinet power budget and ventilation. Mechanical dimensions are fixed at 40 mm width, 185 mm depth, and 285 mm height, allowing the card to occupy a single slot in a System 2010 rack without overhanging adjacent modules.
Frequently Asked Questions about 2AI300.61-010:
Q: What nominal input voltage range does the 2AI300.61-010 support?
A: The 2AI300.61-010 input module accepts a nominal input range of ±10 V, allowing for precise voltage measurements within this range.
Q: What resolution is offered by the 2AI300.61-010 for voltage inputs?
A: This model features 12-bit resolution for its 16 voltage inputs, supporting detailed and accurate signal acquisition.
Q: What is the input resistance of the 2AI300.61-010 module?
A: The 2AI300.61-010 provides an input resistance of 1 MΩ, suitable for high-impedance voltage sources.
Q: What is the basic accuracy of the 2AI300.61-010 at 20 °C?
A: At 20 °C, the basic accuracy of this module is ±0.25%, ensuring high precision in controlled environments.
Q: Does the 2AI300.61-010 feature channel-to-channel isolation?
A: The 2AI300.61-010 does not offer channel-to-channel isolation but does provide isolation to the PCC.
