Torque Setpoint; Torque Control With External Analog Torque Setpoint - Siemens SINAMICS V90 Operating Instructions Manual

Control functions
7.6 Torque control (T)
7.6.2

Torque setpoint

Two sources are available for torque setpoint:
● External setpoint: analog input 2
● Fixed setpoint: p29043
These two resources can be selected with the digital input signal TSET:
Signal Level
TSET 0 (default)
Refer to "DIs (Page 92)" for detailed information about the signal TSET.
7.6.2.1

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
p29041[0] 0 to 100
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 158)" for
details.
● Manual input of an offset value (p29042)
208
Analog torque setpoint (analog input 2)
1 Fixed torque setpoint (p29043)
Factory setting
100
Parameter Range
p29042 -0.50 to 0.50
Source of torque setpoint
Unit
% Scaling for analog torque setpoint (corresponding to 10
V)
Factory setting Unit
0 V
Operating Instructions, 09/2015, A5E36037884
Description
Description
Offset adjustment for analog input 2
(torque setpoint)
SINAMICS V90, SIMOTICS S-1FL6