FAQ# MNEN-5CJMS4 Published: 07/13/2004
Question:Is upgrading from Sigma to Sigma II the best option?
Answer:There are generally three service choices available to existing users of Sigma I: repair, replace, or upgrade to the latest technology. Yaskawa Customer Service will be happy to provide price and current availability for any or all three of the above options. It is only important to have a complete description of existing P/N numbers that require servicing (Example: Motor P/N# SGM-01U3B4L and Amp P/N# SGDA-01AS). Custom servo systems have part numbers that typically end with a special code, such as SGM-01U3B-Y22 or SGDA-01AS-Y13. See the document below titled Service Options for Customized Servos which will help determine the best course of action.

The Upgrade Option: Yaskawa’s latest generation products (Sigma II servo systems) closely parallel the previous product offering and are designed to provide an option for upgrade. Generally, these upgrades install in the same mounting locations, have similar wiring arrangements, and subsequently run the machine with performance equal to or better than the previous system. However, good planning is always a prerequisite to a successful upgrade.

To decide if upgrading is the best option, read the attached summary of the upgrade process for summary comparisons of mounting, wiring, and performance. For any additional price and availability information required for the decision to upgrade, use the Part Number Converter utility (Sigma I to Sigma II) and Yaskawa’s customer service will be able to provide those estimates as an alternative to repair or replace. To simplify the process, these summary documents and utilities are classified by the particular Sigma products being replaced. For determining price and availability for an upgrade, both the motor and amp P/N#s are required.

What's Next? If upgrading is chosen as the best option, a more detailed description of the upgrade process is available in a subsequent FAQ in this database titled "What steps are required to upgrade Sigma products to Sigma II?". This FAQ will provide step-by-step instructions on upgrading an existing Sigma installation to Sigma II.



Product Information:

Product Group:Motion
Product:SGDH Sigma II
Applications:
Category:Hardware; Maintenance; Parts or Replacement

Other Information:

Link to related files:If existing installation is SGM motors and SGD or SGDA amplifiers, use these files:
Summary SGM to SGMAH.pdfPart number converter SGM-SGDA.xls

---------------------
If existing installation is SGMP motors and SGDA amplifiers, use these files:
Summary SGMP with SGDA to SGMPH.pdfPart number converter SGMP-SGDA.xls

---------------------
If existing installation is SGMP motors and SGDB amplifiers, use these files:
Summary SGMP with SGDB to SGMPH.pdfPart number converter SGMP-SGDB.xls

---------------------
If existing installation is SGMG motors and SGDB amplifiers, use these files:
Summary SGMG to SGMGH.pdfPart number converter SGMG-SGDB.xls

---------------------
If existing installation is SGMS motors and SGDB amplifiers, use these files:
Summary SGMS to SGMSH.pdfPart number converter SGMS-SGDB.xls

---------------------
If existing installation is comprised of Customized motors and/or amplifiers, read this document:
Service Options for Customized Servos.pdf

SAFETY PRECAUTIONS AND INSTRUCTIONS FOR USE OF FAQ INFORMATION!
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.