Limit Traversing Range - Siemens SINAMICS S120 Function Manual

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Table of Contents

Both values are relevant for:

● Processing traversing blocks

● Direct setpoint specification / MDI for positioning and setting up

● Reference point approach

The parameters do not have any effect when faults occur with the fault responses OFF1/OFF2/

In the traversing blocks mode, the acceleration and deceleration can be set in multiple integer

steps (1%, 2% ... 100%) of the maximum acceleration and deceleration. The acceleration/

deceleration override (assignment of 4000 hex = 100%) is specified in the "Direct setpoint

specification/MDI" mode for positioning and setting up.

A maximum acceleration or deceleration dependent on the actual velocity (transitioned

acceleration) is not supported.

When using the PROFIdrive telegram 110, the velocity override is already connected and has

to be supplied by the telegram.

Limit traversing range

Function description

The traversing range of a linear axis can be limited using either the software limit switch or the

hardware limit switch (STOP cams).

Activated software limit switches limit the position set value by specifying the connector input

p2578 (software limit switch minus) and p2579 (software limit switch plus).

Activated hardware limit switches are evaluated on the converter using the binector inputs

p2569 (STOP cams, minus) and p2570 (STOP cams, plus).

Limiting the traversing range using the software limit switch

For this procedure, the position set value of a linear axis is limited in accordance with the

specified traversing range over the software limit switch.

Drive functions

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

Software and hardware limit switches as limits

Function modules

9.8 Basic positioner