3-1
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System installation
Operating modes
Tool set mode 1
This mode of operation allows functions such as system alignment, tool calibration, length and diameter
tool setting, and thermal compensation tracking . Measurement takes place as the tool enters the laser
beam . No M-codes are required . Typically drip rejection is activated .
Tool set mode 2
This mode of operation allows length and diameter measurement of cutting tools, measures run-out and
allows cutting edge checking. It uses “Dual Measurement” technology. Measurement takes place as the
tool exits the laser beam providing shorter cycle times and is more robust in wet conditions . M-codes are
required to activate this mode . Drip rejection is not used .
High-speed tool breakage detection
This mode of operation allows rapid detection of broken tools that are solid at the centre – for example,
drills and taps .
Latch mode
This mode of operation allows functions such as checking tools for missing inserts and profile checking.
For further information about the software for these cycles, see Probe software for machine tools,
Renishaw part number H-2000-2298 or the relevant Renishaw NCTS software manual for your machine
tool .
Mode selection
These modes can be activated using M-codes supplying a constant voltage of between 11 Vdc and 30 Vdc
connected to CN2-11 and/or CN2-12 (see the table below) . These selection levels can be inverted using
switches SW3-1 and SW3-2 respectively so that 0 Vdc is used to activate the mode and 11 Vdc to 30 Vdc
is used to deactivate. If the M-code voltage is floating when deactivated, a resistor is required to pull up the
voltage to the supply voltage (refer to the figure below).
Mode
M-code 1
M-code 2
(CN2-11)
(CN2-12)
Tool set 1
Inactive
Inactive
Tool set 2
Active
Active
Tool break
Active
Inactive
Latch
Inactive
Active
10
11
12
13
14
15
3 kΩ
0 .5 W
3 kΩ
0 .5 W
M-code 1 (tool breakage)
M-code 2 (latch mode)
Screen
0 Vdc supply
11 Vdc to 30 Vdc
