YASKAWA SGM-A3 User Manual page 112

2) How to Use Torque Restriction by Analog Voltage Reference
To use this torque restriction function, set the following memory switch to 1.
Torque Restriction by Analog
Cn-02 Bit F
Voltage Reference
Enables this torque restriction function.
To use this function, input a speed reference to the V-REF terminal and a torque limit val-
ue to the T-REF terminal.
This function cannot be used for torque control.
Torque restriction cannot be set separately for forward and reverse rotation. (The same
setting applies to both forward and reverse rotation.)
Setting
Uses the T-REF terminal as a torque reference or torque feed-forward reference
0
input terminal.
1 Uses the T-REF terminal as a torque limit value input terminal.
• This function cannot be used with the torque feed-forward function described in 3.2.8
Using Torque Feed-forward Function.
• For user constants and control modes, refer to Appendix D List of User Constants.
3) Setting a Torque Limit Value in User Constant Cn-13
The factory setting is Cn-13 = 30. If, for example, the torque limit value is 3 V, torque is
restricted to 100% (rated torque).
TCRFGN
Cn-13 Torque Reference
Gain
3.2 Setting User Constants According to Host Controller
Factory
Setting: 0
Meaning
Unit: 0.1 V/ Setting Factory
Rated Range: Setting:
Torque 10 to 100 30
For Speed Control Only
For Speed/Torque
Control Only
99
3