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Frequently Asked Questions

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  Question Posted Date

The E7B bypass unit with the serial communications, option J or option L control comes set up for the start/stop as well as the speed reference to be controlled through serial communication. Is it possible to maintain start/stop control through serial communication while using an analog signal for speed reference?

06/11/2014

The Drive Wizard .PARMS file was edited with another program (ie. Microsoft Word, Notepad) and saved. When reopened with DriveWizard, an error code of "File Error" was displayed on-screen. What is the problem and how can this be corrected?

09/13/2012

The Alarm output on the CACR HR Servopack no longer works. It is always open (or closed) regardless if the servopack is in an alarm state or not. What causes this situation?

03/12/2002

The AC drive repeatedly displays an OV (Overvoltage) fault when the inverter is stopping. What causes this?

06/11/2014

The "sleep" function can only be used when PID is enabled. If an analog (0-10VDC or 4-20mA) signal for speed reference is used, is there any way to use "sleep" without enabling PID?

11/29/2005

SVE -- Fault Code Description

06/08/2007

Specification of 12 pulse input transformer for GPD505/506- PC5/P5 series AC drive.

06/12/2014

Sometimes my machine power-up position is incorrect even though I have an absolute encoder on the motor. What is causing this issue?

05/19/2015

Should motor cable length be a concern when installing an AC drive?, Is it ok to have a motor 300ft from the drive?

06/12/2014

Serial communication is lost intermittently between the building automation system (BAS) and a Lonworks board on the GPD506 / P5 drive. What might be causing this?

06/12/2014

SER - Fault Code Description

06/08/2007

SC - Fault Code Description

06/08/2007

RR -- Fault Code Description

11/16/2009

RR -- Fault Code Description

06/08/2007

RH -- Fault Code Description

06/08/2007

RH -- Fault Code Description

11/16/2009

PUF -- Fault Code Description

11/16/2009

PUF -- Fault Code Description

06/08/2007

Product Demo Documentation: Sigma FSP

06/26/2013

Product Demo Documentation: NS300/NS500

06/26/2013

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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.