Efficient Networks S120 manual Basic functions OFF3 torque limits

Basic functions

6.9 OFF3 torque limits

6.9OFF3 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. 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.

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Figure 6-6 Torque limits OFF3

Function diagrams (see SINAMICS S List Manual)

●5620 Motor/generator torque limits

●5630 Upper/lower torque limit

●6630 Upper/lower torque limit

Overview of key parameters (see SINAMICS S List Manual)

●p1520 Torque limit, upper/motoring

●p1521 Torque limit, lower/regenerative

198	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4