Vertical Axes; Function Diagrams - Siemens SINAMICS S150 NEMA Operating Instructions Manual

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Functions, monitoring and protective functions

9.4 Extended functions

Interruption to "Travel to fixed stop"

The "travel to fixed stop" traversing task can be interrupted and continued using the

(intermediate stop) signal at the binector input p2640. The block is canceled using the

binector input signal p2641 (reject traversing task) or by removing the controller enable. In all

of these cases, the drive is correspondingly braked. When canceling occurs, it is ensured

that an almost-achieved fixed stop (setpoint already beyond the fixed stop, but still within the

threshold for fixed stop detection) will not result in damage. To do this, the setpoint is

updated after the standstill (position setpoint = actual position value). As soon as the fixed

stop is reached, the drive remains in fixed stop even after cancellation. It can be moved on

from the fixed stop using jogging or by selecting a new traversing task.

Activation of the fixed stop monitoring window

The fixed stop monitoring window (p2635) is only activated when the drive is in fixed stop

and remains active until the fixed stop is exited.

Vertical axes

With asymmetrical torque limits p1522 and p1523, when traversing to fixed stop, the fixed

weight is taken into account in the parameters r2686 and r2687.

If, for example, with a suspended load, the values of p1522 = +1000 Nm and of p1523 =

-200 Nm are specified, then an intrinsic weight of 400 Nm (p1522 - p1523) is assumed. If the

clamping torque is now configured as 400 Nm, then r2686[0] is preset to 80%, r2686[1] to

0% and r2687 to 800 Nm when travel to fixed stop is activated.

Traversing blocks mode (r0108.4 = 1)

Traversing to fixed stop (r0108.4 = 1)

Dynamic following error monitoring, cam controllers (r0108.3 = 1)

Operating Instructions, 12/2018, A5E36652151A

Enclosed Drives