FAQ# DRV-5NZQR6 Published: 07/13/2004

Question:UV1 - Fault Code Description
Answer:Digital Operator Display Text: UV1 DC Bus Undervolt
Description: Undervoltage of the main circuit when running.
230 V Units - trip point 190 V DC or less
460 V Units - trip point 380 V DC or less
600 V Units - trip point 546 V DC or less
Possible Cause(s): Single phase condition on the input, low input voltage at L1, L2, and L3
Corrective Action: Check the three phase input voltage, verify L2-05 for 515/G5 units.

A complete list of fault codes is available in the instruction manual, please use the links below.

Product Information:

Product Group:Inverters/Drives
Product:G5HHP Drive, G5 GPD515 Drive, P5 GPD506 Drive, P5 Drive 600 Volt, G5 Drive 600 Volt
Applications:
Category:Fault Code Description

Other Information:

Link to related files:Troubleshooting Manual
G5 Instruction Manual
P5 Instruction Manual

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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 superceed 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.