YASKAWA SGDA series User Manual

3.2Setting User Constants According to Host Controller
95
• This function cannot be used with the function for torque restriction by analog voltage
reference, described in 3.2.9 Using Torque Restriction by Analog Voltage Reference.
• For user constants and control modes, refer to Appendix D List of User Constants.
3) Setting a Torque Feed-forward Value in User Constant Cn-13
The factory setting is Cn-13 = 30. If, for example, the torque feed-forward value is 3V,
torque is restricted to 100% (rated torque).
Cn-13
TCRFGN
Torque Reference
Gain
Unit: 0.1
V/Rated
Torque
Setting
Range:
10 to 100
Factory
Setting:
30
For Speed/Torque
Control Only
3.2.9 Using Torque Restriction by Analog Voltage Reference
For speed/torque control (SGDA-
jjj
S) only.
1) Outline
This function restricts torque by assigning the T-REF terminal (1CN-3, 1CN-4) a torque
limit value in terms of analog voltage. Since torque reference input terminal T-REF is
used as an input terminal, this function cannot be used for torque control.
Torque limit value
Speed reference
Speed loop
gain (Cn-04)
Integration
(Cn-05)
Torque limit value
Torque
reference
Speed feedback
Schematic Block Diagram for Torque Restriction by Analog Voltage Reference
2) How to Use Torque Restriction by Analog Voltage Reference
To use this torque restriction function, set the following memory switch to 1.
Cn-02 Bit F
Torque Restriction by Analog
Voltage Reference
Factory
Setting: 0
For Speed/Torque Control
Only
Enables this torque restriction function.
3
SGDA- S
Speed/Torque

YASKAWA SGDA series Specifications

General

Brand	YASKAWA
Model	SGDA series
Category	Servo Drives
Language	English