Tool Radius And Tool Length Measurement - HEIDENHAIN TNC 426 PB/M Technical Manual

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Tool radius and tool
length
measurement
Oriented Spindle
Stop
December 2001
7 7 7 7
With MP6500 bits 1 and 2, specify whether tool radius and tool length
measurements are allowed and whether individual teeth are to be
measured.
7 7 7 7
Specify in MP6500 bit 14, if tool measurement with stationary spindle is to
be carried out for tools with the value 0 in the "number of teeth" column
(CUT.) in the tool table. This can be necessary for tools with diamond teeth,
for example.
MP6500
Tool measurement with TT 130
Format:
%xxxxxxxxxxxxxxx
Input:
Bit 1 –
0: Tool radius measurement allowed. Tool length measurement
with rotating spindle.
1: Tool radius measurement and individual tooth measurement
disabled
Bit 2 –
0: Tool length measurement with rotating spindle (bit 1=1)
1: Tool length measurement with rotating spindle, only if a tool
radius offset (TT:R-OFFS) has been entered in the tool table
Bit 14 – Tool measurement with number of teeth = 0
0: Tool measurement with rotating spindle
1: Tool measurement with stationary spindle
Spindle orientation must be active for individual tooth measurement,
otherwise the tool radius measurement is subject to error:
7 7 7 7
Define with MP6500 bit 3 whether the tool is measured with or without
spindle orientation.
7 7 7 7
With MP6560, specify whether the spindle is to be oriented directly via NC
or through the PLC.
• For spindle orientation directly by NC:
Reset M4012. (See "Oriented Spindle Stop" on page 6 – 201)
• For spindle orientation by PLC:
Enter the number of the M function in MP6560.
The respective positions are transferred as in the "oriented spindle stop"
cycle. M4017 is set during every spindle orientation.
MP6500
Tool measurement with TT 130
Input:
Bit 3 –
0: Tool measurement with spindle orientation
1: Tool measurement without spindle orientation. Individual
tooth measurement not possible. Tool radius measurement
possibly faulty.
MP6560
M function for spindle orientation during individual tooth
measurement
Input:
–1: Spindle orientation directly by NC
0: Function inactive
1 to 999: Number of the M function for spindle orientation by
PLC
Touch Probe
6 – 371

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