Basic functions
7.14 OFF3 torque limits
Drive functions
358 Function Manual, 11/2017, 6SL3097-4AB00-0BP5
If the torque limits are externally specified (e.g. tension controller), then the drive can only be
stopped with a reduced torque. If stopping in the selected time p3490 of the infeed has not
been completed, the infeed shuts down and the drive coasts down.
In order to avoid this, there is a binector input (p1551), that for a LOW signal, activates the
torque limits p1520 and p1521. This means that the drive can brake with the maximum
torque by interconnecting the signal OFF 3 (r0899.5) to this binector.
Function diagrams (see SINAMICS S120/S150 List Manual)
5620
- Motoring/generating torque limit
5630
- Upper/lower torque limit
6630
- Upper/lower torque limit
Overview of important parameters (see SINAMICS S120/S150 List Manual)
p1520[0...n]
t, upper/motoring
p1521[0...n]
CO: Torque limit, lower/regenerative
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