Control functions
7.7 Torque control (T)
SINAMICS V90, SIMOTICS S-1FL6
262
Operating Instructions, 04/2019, A5E36037884-007
7.7.1.1
Torque control with external analog torque setpoint
In the T mode, when the digital input signal TSET is at low level, analog voltage from the
analog input 2 is used as the torque setpoint.
The analog voltage from the analog input 2 corresponds to a parameterized torque value
scaling (p29041[0]). If p29041[0] = 100%, analog input voltage of 10
V corresponds to rated
torque; if p29041[0] = 50%, the analog input value of 10
V corresponds to 50% of the rated
torque.
Parameter
Range
Default
Unit
Description
p29
041[0]
0 to 100
100
%
Scaling for analog torque setpoint (corre-
sponding to 10 V)
Note
The value of analog input 2 can be monitored through parameter p29351.
Offset adjustment for analog input 2
Offset exists for the input voltage from the analog input 2. The motor can run at a very low
speed even the current input voltage is 0 V. You have 2 methods to adjust such offset:
●
Automatic adjustment with BOP function: refer to "Adjusting AI offsets (Page 205)" for
details.
●
Manual input of an offset value (p29042)
Parameter
Range
Default
Unit
Description
p29042
- 0.50 to
0.50
0
V
Offset adjustment for analog input 2 (torque set-
point)
