34090 REFP_MOVE_DIST_CORR A03, A02, A08,
A11
R1
mm, degrees Reference point offset/absolute offset DOUBLE NEW CONF
- Incremental encoder with zero mark(s):
After recognition of the zero mark, the axis is positioned away from the
zero mark by the distance specified in MD 34080: REFP_MOVE_DIST +
REFP_MOVE_DIST_CORR. After traversing this distance, the axis has reached the
reference point. MD 34100: REFP_SET_POS is transferred into the actual value.
During traversing by REFP_MOVE_DIST+REFP_MOVE_DIST_CORR, the override
switch and MD : JOG_INC_MODE_IS_CONT (jog/continuous mode) are active
- Distance-coded measuring system:
REFP_MOVE_DIST_CORR acts as an absolute offset. It describes the offset
between the machine zero and the first reference mark of the measuring system.
Messsystems.
- Absolute encoder:
REFP_MOVE_DIST_CORR acts as an absolute offset.
It describes the offset between the machine zero and the zero point of the
absolute measuring system.
Note:
In conjunction with absolute encoders, this MD is modified by the control
during calibration processes and modulo offset!
With rotary absolute encoders (on linear and rotary axes), the modification
frequency also depends on the setting of MD34220 ENC_ABS_TURNS_MODULO.
Manual input or modification of this MD via the part program should therefore
be followed by a Power ON Reset to activate the new value and to ensure
that it will not be lost.
The following applies for NCU-LINK:
If a link axis uses an absolute encoder, every modification of MD34090 on the
home NCU (servo physically available) is updated only locally and not
beyond the limits of the NCU. The modification is therefore not visible
for the link axis. Writing of MD34090 through the link axis is rejected
with alarm 17070.
-, -
- 2 0.0, 0.0 -1e15 1e15 7/2


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