Scratching (Sw 5 And Lower) - Siemens SINUMERIK 840D Operator's Manual

4
Machine Operating Area
4.4 JOG mode

4.4.7 Scratching (SW 5 and lower)

Scratching
4-130
Notes
Depending on the machine data configuration described in /IAM/, IM4,
two scratching modes are possible. This subsection describes the
variant for MMC and NCK in SW version 5; the previous subsection
describes the procedure for configurations which correspond to SW 6
or later.
Function
·
You can determine the zero offset by "scratching" the workpiece,
taking an (active) tool and, if necessary, the basic offset into account.
· A window is provided for the "Scratching" function.
Operating sequence
1. Press softkey "Scratching":
· The active plane is selected (G17).
· The active ZO is selected. If no ZO is currently active, then the first
ZO (G54) is selected.
· The active tool is displayed. No tool is displayed if none is active
(message).
Meanings of columns in the "Scratch" window:
· "Offset": Current value of offset to be determined. The coarse
offset is displayed; the fine offset is taken into account and remains
valid.
· "Set position": Input of subsequent setpoint position for scratched
edge.
· "Geo + Wear": Selection fields for tool offsets (geometry + wear)
· "Base": Display of effective tool base dimension
2. Use the cursor to select the first axis to be moved in the "Scratch"
display.
Selected axes are automatically marked in parallel in the actual
value window.
SINUMERIK 840D/840Di/810D Operator's Guide HMI Advanced (BAD) – 03.04 Edition
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03.04
Ó Siemens AG, 2004. All rights reserved