Sigma II User’s Manual Chapter 5: Parameter Settings and Functions5-1305.10 List of Upgraded Functions (Applicable only to SGDH amplifiers ofversion number 33 or higher.)5.10.1 Additional Functions5.10.2 Improved FunctionsAdditional Functions[Applicable Models] Description ReferenceSectionDirect-drive motor supportingfunction[SGDM/SGDH]Applicable to direct-drive motors.(Servomotor Model: SGMCS-□□□) 1.1.2Enhanced dividing outputresolution[SGDM/SGDH]The upper limit of dividing output 16384 [P/R] (equivalent to16-bit) is increased to 262144 [P/R] (equivalent to 20-bit). 5.10.3Reference pulse inputmultiplication range switching[SGDM/SGDH]The reference pulse multiplication can be selected from 1 to99.Use this function if the reference pulse frequency cannot beincreased from the host controller.The setting cannot be changed during operation.5.10.4Second stage notch filterChangeable Q value[SGDM/SGDH]Second stage notch filter is added so that two notch filters, firststage and second stage notch filters, can be set for tworesonance generating points.The setting of parameter "Q-value" that determines thesharpness of notching can be changed to suppress theinfluence on the control loop and interaction between twonotch filters.6.1.6Automatic Gain Switching[SGDM/SGDH] The switching between Gain Setting 1 and Gain Setting 2 isautomatically carried out according to the conditions ofposition reference and position error. 6.2.6Improved Functions Description ReferenceSectionMoment of inertia ratio settingrange[SGDM/SGDH]The setting range "0 to 10,000 %" of moment of inertia ratio(Pn103) is extended to "0 to 20,000 %." 5.11.1Adaptation to single-turn dataabsolute encoders[SGDM/SGDH]Adapted to single-turn data absolute encoders mounted ondirect-drive motors 5.11.2Improvement of linear motorrelated specifications[SGDH]• The parameter Pn384 to set the maximum speed forlinear motor is added.• Overload protection for self-cooling linear motors• Hole sensor monitoring function is added.5.11.3
