General Characteristics Of Manual Travel In Jog - Siemens SINUMERIK 840D sl Function Manual

Manual and Handwheel Travel (H1)
Brief description
DRF
The differential resolver function (DRF) generates an additional incremental work offset in
AUTOMATIC mode via the electronic handwheel. This function can be used, for example, to
correct tool wear within a programmed block.
Fixed point approach
The "fixed point approach in JOG" function enables the manual travel to fixed axis positions
that are defined through a machine data.
4.1.2

General characteristics of manual travel in JOG

The following is a description of the characteristics which generally apply to manual travel in
JOG mode (irrespective of the type selected).
JOG mode
JOG mode must be active if the axes are to be traversed manually (hereafter referred to as
"manual travel").
In each case, the active mode is sent to the PLC via interface signal
DB11 DBX4.2 (active mode strobe: JOG).
References:
/FB1/ Function Manual Basic Functions; Mode Group, Channel, Program Operation (K1)
Machine functions
There are several JOG variants (so-called "machine functions") within JOG mode:
● Continuous (JOG CONT)
● Incremental (JOG INC)
● Jogging with the handwheel.
Handwheel travel
Handwheel travel is also active with the following functions:
● JOG REPOS mode for traversing the geometry and machine axes
● AUTOMATIC mode for moving out a DRF offset
● With path override
● When moving the backlash point of an oscillation
The active machine function is selected via the PLC interface. A separate PLC interface
exists for both the machine axes (axis-specific) and the geometry axes (channel-specific).
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Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions