FAQ: What type of Errors and Alarms are on the controller?
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1. Pn002 not correctly initialized: This alarm may appear on the controller before on starting a new project. This alarm can be removed by going online with the Configuration Tool (CT) and saving the desired configuration to the controller and project and finally cycling power to the controller. On reboot, the controller should be free of the Pn002 not initialized alarm.
2. I/O Driver initialization error: This alarm is caused because the configured drivers did not find the I/O devices when the PLC was run. The most common cause for this is missing I/O devices and/or EtherNet IP, MODBUS TCP devices (from the configuration saved on the controller). User may have to reconnect the disconnected device or re-configure the controller through the configuration tool, save and cycle power.
3. WatchDog Alarm: The scan time of the task is not large enough for the task to complete one scan. Make the scan time larger by going to Task> Settings> Scan Time. Make sure that mechatrolink axes are not being enabled in the very first scan of the project.
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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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