Siemens SINAMICS S110 - OFF3 Torque Limits

Drive functions
7.2 Basic functions
Function Manual
196 Function Manual, 01/2011, 6SL3097-4AB10-0BP3
7.2.5 OFF3 torque limits
Description
If the torque limits are externally specified (e.g. tension controller), then the drive can only be
stopped with a reduced torque.
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.
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Figure 7-30 Torque limits OFF3
Function diagrams (see SINAMICS S110 List Manual)
● 5620 Motor/generator torque limits
● 5630 Upper/lower torque limit
Overview of important parameters (see SINAMICS S110 List Manual)
● p1520 Torque limit, upper/motoring
● p1521 Torque limit, lower/regenerative