FAQ: What happens if the STOP button on the Digital Operator is pressed, while the drive is being controlled remotely by START/STOP circuitry connected to the drives I/O terminal block? Can the drive be restarted locally?
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When the drive is stopped locally while running in two-wire control, the remote run command is never actually removed. This means there is a continuous remote run command that has been overridden by the Digital Operator stop command. In order to restart the drive, one of two things can be done. Either the main 230/480V drive input power can be cycled, or the remote run command can be removed and then reapplied.
There is an alternative, if cycling drive power or toggling the remote run is undesirable in the case above.
A recommended solution would be to install a local STOP switch at the drive, Install the normally closed STOP switch in series with the remote run contact and the two-wire start/stop terminal located on the drive. This way the drive can be stopped locally, and the run contact can be removed and reapplied right at the drive.
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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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Waukegan, IL 60085