Siemens SINUMERIK, Commissioning Manual

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Parameterizing machine data
3.2 Parameterizing the control using machine data
HMI Advanced (IM4)
Commissioning Manual, 03/2009, 6FC5397-0DP10-3BA0
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Scratching
When this is selected the active frame is offered. A different frame can be selected by means
of an entry in the "Work offset" field.
●
Scratching with system frame:
With G500 in the "Work offset" field, the values are written to the system frame.
With a value other than G500 in the "Work offset" field, the values are written to the frame
defined in the field.
You cannot choose any tool other than the one in the spindle. If there is no tool in the
spindle, you can choose any tool you want.
● Scratching without system frame:
With G500 in the "Work offset" field, the values are written to the first basic frame.
Values are written to the specified basic frame according to the entry in display MD 9245:
$MM_MA_PRESET_FRAMEIDX = Index of basic frame
With a value other than G500 in the "Work offset" field, the values are written to the frame
defined in the field. You can select any tool you want.
See also:
Operation on HMI: Operating Manual HMI Advanced
3.2.2 Fine work offset and base offset
Function
This function refers to the offset in the "Settable work offset" and "Basic work offset" screen
forms. Another column for the fine offset is inserted alongside the column for entering the
offsets. The inputs are checked against the display machine data.
MD 9203: USER_CLASS_WRITE_FINE Access level for protection
MD 9451: MM_WRITE_ZOA_FINE_LIMIT Absolute value of the change
Actual value display: settable zero system
Via MD 9424: MA_COORDINATE_SYSTEM can be used to specify how the actual values
are displayed:
●
Position of the workpiece coordinate system (programmed position, corresponding to
default setting) or
● Take-up position of the active tool relative to the workpiece zero.
MD 9424 = 0 Display in workpiece coordinate system, WCS (default)
MD 9424 = 1 Display in the settable zero system, SZS (fixture position of the active
tool)