Siemens SINAMICS S120 Commissioning Manual page 203

The drive is operated in the open-loop torque controlled mode. The following
parameterization is required:
1. Set p1501 = 1, to switch over the speed/torque control.
2. Set p0640 = 0 to limit the motor current to 0.
3. Set p1545 = 1, to activate the travel to fixed stop.
4. The motor must be in closed-loop control and rotated externally.
Commissioning Manual
Commissioning Manual, (IH1), 01/2013, 6SL3097-4AF00-0BP3
Figure 2-63 Example of an optimally commutated drive (recorded using the trace function of the
STARTER commissioning tool, refer to the previous diagram for the color
assignment)
2.13 Commissioning SIMOTICS 1FW6 built-in torque motors
Commissioning
201