Offset between drive position and CNC position for absolute encoders (P-AXIS-00403)

P-AXIS-00403

Offset between drive position and CNC position for absolute encoders

Description

For drives with absolute encoder, this parameter can introduce an offset between the position supplied by the drive and the internal CNC position. The position of the CNC then results from:

As soon as the drive delivers valid positions, the CNC position is set according to the equation above and the axis is marked as referenced.

When occasionally, due to external influences such as phase switching by the operator, the field bus or drive does not deliver valid actual positions, the CNC position is reinitialised as soon as the drive delivers valid positions.

Parameter

antr.abs_pos_offset

Data type

SGN64

Data range

MIN_SGN32 ≤ abs_pos_offset ≤ MAX_SGN32

Axis types

T, R, S

Dimension

T: 0.1µm

R,S: 0.0001°

Default value

0

Drive types

Simulation, SERCOS, Lightbus, Profidrive, CANopen

Remarks

Using this parameter is only reasonable if the drive has an absolute encoder.

This parameter is only effective, when P-AXIS-00014 is set to 1.

When the used drive type does not support this parameter, a warning with number 110532 (see also @@[DIAG]) is output and P-AXIS-00403 is set to 0.

If the parameter is changed by updating the parameter list or with the #MACHINE DATA command, the changed offset is not effective until the next new initialisation of the CNC position.