FAQ: What is an A.09 alarm?
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An A.09 alarm occurs for SGDH servo amplifiers modified with the Y213 modification when the maximum encoder output frequency is exceeded (Y213 modification applies to a linear motor application). The maximum frequency is 12.8MHz. The frequency is calculated at power-up based on the motor peak speed (Pn384), the linear scale pitch (Pn280), and the PG dividing ratio (Pn281). To reduce the output frequency, either decrease the motor peak speed or decrease the PG dividing ratio. Un010 will display the setting limit at which the frequency will not exceed the maximum (12.8MHz) for either the motor peak speed or the PG dividing ratio. The limit value can by chosen by parameter Pn080.3.
Additional Keywords: A09, error, linear motor,
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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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