YASKAWA LEGEND SGDG Application Notes
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2121 Norman Drive South Publication # eng02.027MCDWaukegan, IL 60085 7/26/2002(847) 887-7000Page 1 of 3ENGINEERING PUBLICATIONMOTION CONTROL DIVISIONPRODUCT: LEGEND SGDG SUBJECT: EXTERNAL REGENCATEGORY: APPLICATION NOTESENGINEER: Bill Leang DISTRIBUTION: AllSummary: The Legend SGDG-01GT and SGDG-04GT needs special attention whenexternal regen resistor is required in the application. The JUSP-RG08D external regenunit should be used with SGDG-01GT. The SGDG-04GTY22P must be used with twoRH500N25_ohmK external resistors. The JUSP-RG08D can also be used with thestandard SGDG-04GT.The SGDG-01GT does not have the regen transistor built-in even though there areterminals for connecting an external regen resistor. Therefore, for external regenrequirement, the JUSP-RG08D external regen unit must be used. This is the regen unitdesigned for SGDA amplifiers. This unit connects directly across the DC bus. It is a self-contain unit consisting of bus sensing circuitry, switching IGBT, 50 ohm power resistor,and alarm relay contacts. The regen capacity of this unit is 60W before derating. Theconvection cool capacity is 12W. Capacity increases to 30W with forced-air cooling.The following is the dimension and specifications of the JUSP-RG08D: |
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