Yaskawa DR2 Sigma Servo - Manual (Page 111)

APPLICATIONS OF Σ-SERIES PRODUCTS
3.2.9 Using Torque Restriction by Analog Voltage Reference
98
• 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 3 V,
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 control only.
1) Outline
This function restricts torque by assigning the T-REF terminal (1CN-9, 1CN-10) 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
3
Speed