Yaskawa Sigma II Series Servo System - Manual (Page 217)

Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
5-131
5.10 List of Upgraded Functions (Applicable only to SGDH amplifiers of
version number 33 or higher.)
5.10.1 Additional Functions
5.10.2 Improved Functions
Additional Functions
[Applicable Models]
Description
Reference
Section
Direct-drive motor supporting
function
[SGDM/SGDH]
Applicable to direct-drive motors.
(Servomotor Model: SGMCS-□□□)
1.1.2
Enhanced dividing output
resolution
[SGDM/SGDH]
The upper limit of dividing output 16384 [P/R] (equivalent to
16-bit) is increased to 262144 [P/R] (equivalent to 20-bit). 5.10.3
Reference pulse input
multiplication range switching
[SGDM/SGDH]
The reference pulse multiplication can be selected from 1 to
99.
Use this function if the reference pulse frequency cannot be
increased from the host controller.
The setting cannot be changed during operation.
5.10.4
Second stage notch filter
Changeable Q value
[SGDM/SGDH]
Second stage notch filter is added so that two notch filters, first
stage and second stage notch filters, can be set for two
resonance generating points.
The setting of parameter "Q-value" that determines the
sharpness of notching can be changed to suppress the
influence on the control loop and interaction between two
notch filters.
6.1.6
Automatic Gain Switching
[SGDM/SGDH]
The switching between Gain Setting 1 and Gain Setting 2 is
automatically carried out according to the conditions of
position reference and position error.
6.2.6
Improved Functions Description
Reference
Section
Moment of inertia ratio setting
range
[SGDM/SGDH]
The setting range "0 to 10,000 %" of moment of inertia ratio
(Pn103) is extended to "0 to 20,000 %." 5.11.1
Adaptation to single-turn data
absolute encoders
[SGDM/SGDH]
Adapted to single-turn data absolute encoders mounted on
direct-drive motors 5.11.2
Improvement of linear motor
related specifications
[SGDH]
• The parameter Pn384 to set the maximum speed for
linear motor is added.
• Overload protection for self-cooling linear motors
• Hole sensor monitoring function is added.
5.11.3