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== Overview ==

Yaskawa Sigma-7 family servos designed to work with Yaskawa SGD7 (Sigma-7) family servo drives (SERVOPACKs) such as the [[Yaskawa SGD7S Series Servo Drives|SGD7S series]] (single axis) or SGD7W series (dual axis). They have proprietary serial encoders, which makes them difficult/impossible to use with standard servo drives.

== Model Numbers ==

* [https://www.yaskawa.eu.com/Global%20Assets/Downloads/Technical_Documentation/Servo_Drives/Sigma7_Series/S7_RotatoryMotor/Sigma-7_Rotatory_Motor_SGM7_Product_Manual_SIEP_S800001_36.pdf#page=36 Page 36] (1-6 in the PDF) shows the model number scheme

== Online Resources ==

[https://www.yaskawa.eu.com/Global%20Assets/Downloads/Technical_Documentation/Servo_Drives/Sigma7_Series/S7_RotatoryMotor/Sigma-7_Rotatory_Motor_SGM7_Product_Manual_SIEP_S800001_36.pdf Σ-7-Series AC Servo Drive Rotary Servomotor Product Manual Model: SGM7M/SGM7J/SGM7A/SGM7P/SGM7G/SGMMV (SIEP S800001 36G)]

[https://www.yaskawa.eu.com/Global%20Assets/Downloads/Technical_Documentation/Servo_Drives/Sigma7_Series/S7_RotatoryMotor/S7_400VRotaryMotor_PM_EN_SIEP_S800001_86E_4_0.pdf Σ-7-Series AC Servo Drive Rotary Servomotor with 400 V-Input Power Product Manual Model: SGM7J, SGM7A, SGM7G (SIEP S800001 86E)]

[https://www.yaskawa.eu.com/Global%20Assets/Downloads/Technical_Documentation/Servo_Drives/Sigma7_Series/S7_DirectDrive/Sigma-7_Direct_Drive_Motor_SGM_Product_Manual_SIEP_S800001_38.pdf Σ-7-Series AC Servo Drive Direct Drive Servomotor Product Manual Model: SGM7D/SGM7E/SGM7F/SGMCV/SGMCS (SIEP S800001 38H)]

[https://www.nexinstrument.com/assets/images/pdf/SGD7S-2R8A00A.pdf Σ-7-Series AC Servo Drive Rotary Servomotor Product Manual Model: SGM7J/SGM7A/SGM7G (SIEP S800001 36A)]