Axis Functions - Siemens SINUMERIK 828D Function Manual

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Axis functions

SERUPRO conditions

The special conditions for SERUPRO must be observed with axis enable, autonomous axis operations, and axis

replacement.

The axial IS DB31, ... DBX3.7 ("Program test axis/spindle enable") controls the axis enables if no closed-loop

controller enable is to (or can) be issued at the machine and is active only during the program test or when

SERUPRO is active.

It is possible, via the interface signal PLC → NCK

DB31, ... DBX3.7 (program test axis/spindle enable) to do this enabling. If the real servo enable is missing during

program testing or SERUPRO, the effect on the axes/spindles is as follows:

As soon as the simulated program run intends to move an axis/spindle, the message "Waiting for axis enable"

or "Waiting for spindle enable" is displayed and the simulation is stopped.

If, during a simulated movement, the VDI signal DB31, ... DBX3.7 (program test axis/spindle enable) is

canceled again, the alarm 21612: "Channel %1 axis %2 VDI signal 'servo enable' reset during motion" is

Autonomous axis operations

Autonomous singleaxis operations are axes controlled by the PLC that can also be simulated on SERUPRO.

During SERUPRO operation, as in normal operation, the PLC can take over or give up control of an axis. If

required, this axis can also be traversed using FC18. The PLC takes over control of the axis before the approach

block and is responsible for positioning this axis. This is valid for all block search types.

For further information about autonomous singleaxis operations, see:

References: /FB2/ Function Manual Expanded Functions; P2, "Positioning axes"

Axis replacement

Problem: A program moves an axis and gives up control before the target block with WAITP(X). X is thus not

subject to REPOS and the axis is not taken into account in SERUPRO approach.

Via the machine data MD11470 $MN_REPOS_MODE_MASK, the following behavior can be achieved for

SERUPRO-REPOS:

The neutral axes are moved as "command axes" in the SERUPRO-REPOS. The axis interpolates without a path

context even it was last programmed as a path axis. In this scenario, the velocity results from MD32060

$MA_POS_AX_VELO. After SERUPRO approach, this axis is again neutral.

Neutral axes that are however not allowed to be repositioned must receive the axial VDI signal "REPOSDELAY".

This deletes the REPOS movement.

Basic Functions

Function Manual, 09/2011, 6FC5397-0BP40-2BA0

K1: Mode group, channel, program operation, reset response

9.8 Block search Type 5 SERUPRO

Sinumerik 840d sl