8AC0123.002-1 B & R Automation
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The B & R Automation 8AC0123.002-1 is an incremental encoder interface from the 8AC Powerlink Modules series and features a 15-pin male DSUB connector. It supports 24 V single-ended or differential compatible signals with a supply load capacity of 300 mA and provides overload and short-circuit protection. The module includes UP/DN status LEDs and has encoder isolation and temperature sensor connection capabilities.
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Product Description:
The 8AC0123.002-1 module is produced by B&R Automation within the 8AC Powerlink Modules series. It is an encoder interface card that attaches to a Powerlink node to capture incremental feedback from motion axes and forward precise position data to the networked controller. By translating differential or single-ended encoder pulses into deterministic Powerlink telegrams, the board enables synchronized speed and position regulation across conveyors, gantries, and indexing stations.
The board uses a 15-pin male D-Sub connector to accept encoder leads, and the input stage is specified for 24 V single-ended or differential signal levels. Internally, an optically isolated front end prevents ground loops while maintaining encoder isolation. The interface follows the incremental encoder interface standard and qualifies a high state once the incoming line exceeds 14 V; a low state is recognized below 5.5 V. A dedicated 24 V supply rail is provided for the encoder, and it can source current while overload protection and short-circuit protection shut the rail down if excessive demand or wiring faults occur. Both protections act without affecting network traffic, keeping position data valid during transient faults.
To power external sensors, the integrated 24 V rail can deliver up to 300 mA of load current without derating. Incoming A and B channels are evaluated at 4x resolution, so the module derives four position counts per pulse edge, which increases interpolation accuracy for slow-moving axes. The comparator chain is tuned for the square-wave pulse form typical of TTL or HTL encoders, and front-panel UP/DN LEDs provide immediate feedback on detected movement direction. A dedicated terminal accepts a temperature sensor, enabling the controller to correlate position data with thermal drift in the drive mechanics.
Frequently Asked Questions about 8AC0123.002-1:
Q: What types of compatible signals are supported by the 8AC0123.002-1 module?
A: The 8AC0123.002-1 supports both 24 V single-ended and differential signals, allowing flexible encoder connections.
Q: What type of connector does the 8AC0123.002-1 use for encoder connections?
A: This module features a 15-pin male DSUB connector, making it easy to interface with standard encoder cables.
Q: What encoder supply voltage and load capacity does the 8AC0123.002-1 provide?
A: The 8AC0123.002-1 provides an isolated 24 V encoder supply with a maximum load capacity of 300 mA.
Q: Does the 8AC0123.002-1 provide overload and short-circuit protection?
A: Yes, the module is equipped with both overload and short-circuit protection, enhancing the safety of connected devices.
Q: What types of status indicators are present on the 8AC0123.002-1 module?
A: Status of the module is displayed with UP and DN LEDs, giving clear encoder signal feedback.
