FAQ: What is an A.E5 alarm?
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An A.E5 (AE5) alarm is a Mechatrolink Synchronization Error between an MP920 or MP930 controller (using SVB modules) and an NS-100. Every mechatrolink communications cycle, the controller increments Watch Dog Timer data (WDT). If the expected data does not match with the data in the NS-100 module, then it is known that the transmission packet also did not get written to/from local register memory (hence the node did not get updated with new deterministic data). Since this is a deterministic control system and data must be transfered, this will flag an A.E5 alarm and it will display on the SGDH LED display.
To reset this alarm, the controller must perform the alarm clear sequence TWICE.
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Please read and understand the product instruction manual before installing, servicing or operating Yaskawa products. FAQ content and illustrations are provided as technical advice to augment the information in manual, not supersede it. It is not possible to give detailed instructions for all types of installation or support activities. The information described in the FAQs are subject to change without notice to improve the product or FAQ. Yaskawa assumes no responsibility for errors or omissions or damages resulting from the use of the information contained in any FAQ. All warnings, cautions and product instruction for product use must be followed. Installation, operation and maintenance should be carried out by qualified personnel. Failure to observe these and other precautions highlighted in the product manuals will expose the user to high voltages resulting in, serious injury or death. Qualified personnel are defined as individuals who are familiar with the installation, starting, operation and maintenance of Yaskawa products of the type described and have proper qualifications to perform the work.
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