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Match the complete marking
Provide the complete B&R X20AI4222 marking. Verify X20AI4222 and all four channel assignments.
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Check the offered item before ordering
Request available label and connector photos. Have your maintenance team compare the offered X20AI4222 with the installed equipment and applicable B&R instructions.
Technical specifications for X20AI4222
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Manufacturer:B&R
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Product Category:PLC Systems
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Spare Part Number:X20AI4222
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Weight:0.04 kg
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Tariff Code:8537101190
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Inputs:4 differential voltage channels
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Measurement range:±10 V
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Converter resolution:13 bits including sign
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Conversion time:400 µs for all inputs
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Input impedance:20 MΩ
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Maximum input signal:±30 V
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Analog filter:Third-order low-pass, 1 kHz cutoff
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Common-mode range:±12 V
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Channel-to-bus test voltage:500 V RMS
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Channel-to-channel isolation:None
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Internal I/O consumption:1.1 W
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Bus consumption:0.01 W
Information
- B&R X20AI4222 brings four bipolar voltage measurements into the controller while allowing the input processing to suppress unwanted spikes and report out-of-range conditions.
Conversion: 400 µs for all channels
Processing: Configurable filter and ramp limiting
The analog front end includes a third-order low-pass filter with a 1 kHz cutoff. Configurable digital filtering and input ramp limiting act separately; ramp limiting precedes the digital filter and requires filtering to be enabled.
Channels are isolated from the bus but not from one another. Individual input LEDs distinguish valid conversion, open line and range violation. Horizontal operation allows −25 to +60 °C, while vertical mounting reduces the upper limit to +50 °C.
X20AI4222 Official Technical Excerpt
B&R X20AI4222: original manufacturer technical information covering the specified interfaces and operating limits. PDF · 10 pages.X20AI4222 Installation & Verification Guide
Apter Power installation and verification guide covering assign all four voltage channels, fit the correct x20 connection set, select the digital filter, test positive and negative values, confirm orientation and temperature. PDF · 5 pages.
Application scope: The applications below describe its technical role. Select associated hardware and configuration for the actual installation.
Four-channel voltage acquisition
Collect bipolar process measurements in an X20 I/O station.Spike suppression
Use configured ramp limiting and filtering where the process permits the resulting response delay.Signed process signals
Convert positive and negative voltages with the correct controller scaling.Channel diagnostics
Distinguish disconnected or out-of-range inputs from normal conversion.
Assess the source reference against the ±12 V common-mode range. Differential measurement does not permit an unrestricted voltage offset to the module reference.
Check the source with the 20-megohm input impedance and the installed cable. Resolve wiring defects before changing filtering to conceal an unstable signal.
Use ramp limiting only with the digital filter and select the limit for the real process. Excessive limiting can suppress a valid rapid input change as well as noise.
Compare the input LEDs and software diagnostics with connected, open and out-of-range test conditions. Perform fault tests only in the approved process state.
Retain the channel map, polarity, filter and ramp settings, diagnostics and measured response. Verify that the application receives the intended filtered signal before release.
Check whether the module is horizontal or vertical and apply the corresponding ambient limit. Keep the station enclosure and ventilation within the intended conditions.
Alternative Names
Technical notes
Operating boundary: The 1 kHz analog low-pass cutoff and the selectable digital filter describe separate processing stages; neither should be treated as the application update rate.
Integration details: Retain the differential wiring, source common mode, bus module, terminal block and filter settings when replacing the four-input module.
Technical basis: B&R X20AI4222 Data Sheet, V1.30. X20AI4222 is the four-input ±10 V module. Conversion time, digital filtering and bus-cycle timing are distinct conditions.
FAQ View All FAQ
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Are the four inputs of X20AI4222 individually isolated?No. The channels are isolated from the bus but not from each other; differential inputs do not imply independent galvanic isolation.
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Does the ±30 V limit of X20AI4222 extend its calibrated measurement range?No. The measurement range is ±10 V. The maximum permissible signal must not be confused with the usable measuring range.
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What does the 400 µs conversion figure for X20AI4222 include?It covers conversion of all four inputs. Digital filtering and communication timing can add further delay to the application value.
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In what order does X20AI4222 apply ramp limiting and digital filtering?Input ramp limiting acts first, followed by filtering. Ramp limiting is only available in conjunction with the filter.
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How does an input LED on X20AI4222 distinguish an open line from a range error?An off input LED indicates an open line or disconnected sensor, while blinking indicates overflow or underflow. A steady indication represents normal conversion with a valid value.
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What input impedance does X20AI4222 present in its measurement range?The specified impedance is 20 megohms, which must be considered with the source and wiring arrangement.
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Why can a vertically mounted X20AI4222 need a lower ambient limit?Vertical operation is rated to +50 °C, compared with +60 °C horizontally. Mounting orientation affects the thermal boundary.
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Can the digital input filter of X20AI4222 be used at every cycle time?No. Its minimum cycle time must be greater than 500 µs; the filter is disabled at shorter cycle times.
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