FAQ: Does Yaskawa sell the SGDM Sigma II amplifier in North America?
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The SGDM amplifier is a non-expandable Sigma II amplifier. It is sold only in Asia. However, the SGDH Sigma II amplifier is identical, except that the SGDH amplifier has a port on the side of the amplifier to interface with option cards such as the NS600 or MP940.
If an imported machine (likely built in Asia) has an SGDM and needs a replacement amplifier, the SGDH can be used. It has exactly the same parameter set, runs exactly the same motors, and has exactly the same footprint. An expansion port protrudes 8mm from the side of the SGDH, but this is not a problem if the amplifiers were properly spaced (min. 10mm between amplifiers) in the cabinet.
The part number for the SGDM amplifier follows this convention: SGDM-WWXYZ, where WW is the amplifier power rating (i.e. '04' for 400W or '55' for 5.5 kW), X is a letter determining input voltage (A= 200VAC, B=100VAC, D=400VAC), Y is the control code (usually 'D'), and Z is an optional revision level (usually either blank or 'A').
The replacement motor will be SGDH-wwxE, where ww is the same amplifier power rating and x is the same input voltage letter as the SGDM. For example, an SGDM-02BD would cross-reference to a SGDH-02BE and an SGDM-50ADA would cross to a SGDH-50AE.
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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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