Sign for actual and command values

Inversion

To adapt the manipulated variable and the position sensor signals to the hardware used, it is sometimes necessary to invert the signs for the manipulated variable and the position actual value.

Example

example

The axis is programmed in the positive direction. However, the mechanical system actually moves in the negative direction.

In this case, use the two entries lr_hw[ ].vz_stellgr and lr_hw[ ].vz_istw.

The manipulated variable output is inverted by setting vz_stellgr to 1; when vz_istw is set to 1, an increase in the position of the position sensor results in a reduction of the axis position used in the CNC kernel.

lr_hw[0].vz_stellgr      0

lr_hw[0].vz_istw         0

Variable name

Type

Permitted range

Dimension

vz_stellgr

BOOLEAN

0, 1

----

Variable name

Type

Permitted range

Dimension

vz_istw

BOOLEAN

0, 1

----

Notice

notice

Each of these entries is not directly adopted when the axis parameter list is updated. A controller restart is required.