Continuous (Jog Cont); General Functionality - Siemens SINUMERIK Series Function Manual

Extended functions

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H1: Manual and handwheel travel

3.2 Continuous (JOG CONT)

Detailed information on the configuration and integration of machine control panels in the

PLC user program can be found in the Basic Functions manual:

● SINUMERIK 840D sl: "P3: Basic PLC program for SINUMERIK 840D sl"

● SINUMERIK 828D: "P4: PLC for SINUMERIK 828D"

Continuous (JOG CONT)

Continuous mode in JOG mode must be selected via the PLC interface:

DB21, ... DBX13.6 (machine function: continuous)

Once the continuous procedure is active, the following interface signal is returned to the

DB21, ... DBX41.6 (active machine function: continuous)

Traversing keys

The plus and minus traversing keys are selected to move the relevant axis in the appropriate

direction. If both traversing keys are pressed simultaneously, there is no traversing

movement, or, if an axis is in motion, it is stopped.

When the control is switched on, axes can be traversed to the limits of the machine because

they have not yet been referenced. Hardware limit switches might be triggered as a result.

The software limit switches and the working-area limitation are not operative.

Traversing command plus/minus

As soon as a traverse request for an axis is active (e.g. after selection of a traverse key), one

of the following two interface signals is sent to the PLC (depending on selected traverse

DB21, ... DBX40.7 (traversing command plus)

DB21, ... DBX40.6 (traversing command minus)

Function Manual, 03/2013, 6FC5397-1BP40-3BA1

Extended Functions

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Sinumerik 840d sl Sinumerik 828d