TorqueLimitationFilter

General

Type	ES
Devices supporting the parameter	Lexium LXM62 Drive
Device variants supporting the parameter	Standard Plus, Advanced Plus, Application defined
Traceable	Yes

Functional Description

The parameter is used to set the time constant of the filter for the mechanical overload protection in [ms] (value range: 0.1...10 s). The first order low pass filter is used to smooth the torque, thus allowing to set the sensibility. As long as the smoothed signal does not exceed a torque limit, full torque is available. When the smoothed signal reaches the limits, overload protection becomes active (torque transmission is interrupted and motor is switched torque free).

The mechanical overload protection mode is activated by setting the TorqueLimitationMode parameter to 2. The torque limits are set using the parameters AccelerationTorqueLimit and DecelerationTorqueLimit.

NOTE: The parameter value is transferred from the master to the slave via the parameter channel of the Sercos at every access. Typically, this takes about 10 ms. However, up to 1 s can be realized due to the volume of data transferred on the parameter channel.