V7N Drive

FAQs

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  Question Posted Date

When dealing with harmonic noise, which is better-- an AC or a DC reactor?

06/20/2013

What will happen if there is only .5'' clearance from either top or bottom of the drive to an enclosure?

03/14/2006

What parameter sets the maximum output frequency for V7 series drives?

06/20/2013

What is the meaning of CAL or CALL on the keypad display?.

10/28/2005

What does it mean when the drive has a RUN command and the STOP light is flashing on the drive display?

10/27/2005

What does it mean that, "motor protection time constant for the electrical termal device is 8 minutes"?

11/28/2005

What are some counter-measures to reduce harmonics created by AC drives?

06/08/2007

UV2 -- Fault Code Description

06/08/2007

UL3 -- Fault Code Description

06/08/2007

UL3 (blinking) -- Fault Code Description

06/08/2007

SER - Fault Code Description

06/08/2007

oPA - Fault Code Description

06/08/2007

OL3 -- Fault Code Description

06/08/2007

OL3 -- Fault Code Description

06/08/2007

OH -- Fault Code Description

06/08/2007

Off -- Fault Code Description

09/19/2013

Is a braking resistor internally installed?

06/20/2013

In troubleshooting LF fault the manual says the output current has exceeded 5% imbalance. How can I calculate this imbalance?

04/01/2014

In some pumping systems the motor speed is normally about 80% of rated motor speed. However, periodic purging of the pumping system requires the pump to go to full speed for a while, then return to normal. How is this done with the V7 Drive?

10/27/2005

How can I set this AC drive so my motor can't run below 20hz? Is it the Frequency min. parameter?

06/12/2014

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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.