Travel To Fixed Stop - Siemens SINAMICS S120 Function Manual

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Servo control

5.19 Travel to fixed stop

Travel to fixed stop

Function description

This function can be used to move a motor to a fixed stop at a specified torque without a fault

being signaled. When the stop is reached, the specified torque is established and is then

continuously available.

The desired torque derating is brought about by scaling the upper/motor-mode torque limit and

the lower/regenerative-mode torque limit.

Applications

The main applications of the function are:

● Screwing parts together with a defined torque

● Moving to a mechanical reference point

For PROFIdrive telegrams 2 to 6, the following signals are automatically interconnected:

● Control word 2, bit 8 (STW2.8)

● Status word 2, bit 8 (ZSW2.8)

For PROFIdrive telegrams 102 to 106, the following signals are also interconnected:

● Message word, bit 1 (MELDW1)

● Process data M_red to the scaling of the torque limit

When the "basic positioner" function module is activated, the signals listed above are

automatically interconnected to the basic positioner.

Function Manual, 06/2019, 6SL3097-5AB00-0BP2

Drive functions