Enhanced Trigger Filter; Auto-Reset Function; Multiple Probe Mode - Renishaw RMP400 Installation Manual

RMP400 installation guide

Enhanced trigger filter

Probes subjected to high levels of vibration or
shock loads may output signals without having
contacted any surface. The enhanced trigger filter
improves the probe's resistance to these effects.
When the filter is enabled, a constant 8 ms or
2.4
16 ms delay is introduced to the probe's output.
The factory setting is 8 ms. If false triggering is
noticed, then consider increasing the filter delay to
16 ms.

Auto-reset function

In previous strain gauge products, the probe was
required to be turned off during reorientation
moves. The auto-reset function in the RMP400
can compensate for stylus forces, resulting from
changes in probe orientation, that can cause the
probe to trigger.
This feature is controlled by solid state
accelerometers and is suitable for applications
where axial and radial reorientation of the probe is
applied.
To achieve optimum metrology performance
when the auto-reset function is turned on, a dwell
is recommended before making a programmed
move that follows any reorientation of the probe.
When using a stylus of up to 150 mm long,
a 0.2 second dwell is necessary. In most
applications the machine response time will
adequately provide this.
When using a heavy stylus configuration, or a
stylus longer than 150 mm, it is recommended
that the RMP400 should be turned off during
reorientation moves.

Multiple probe mode

The RMP400 can be configured, using Trigger
Logic, to allow multiple radio probes in "spin on/
spin off" or "shank on/shank off" to be used with a
single RMI or RMI-Q.
Draft 5 16/04/18
Up to four RMP400s can be used with a single
RMI-Q in "radio on/radio off" mode. For further
details of this functionality, please refer to the
installation guide RMI-Q radio machine interface
(Renishaw part no. H-5687-8504).
NOTES:
Multiple probe mode is a function of the RMP400,
as such, the option will not appear when the
"radio on" option has been selected.
RMP400 probes which are set to "multiple probe
mode on" can coexist alongside any number of
RMP400 probes set to "multiple probe mode off".
To allow multiple radio probes to work in close
proximity, and with a single RMI or RMI-Q,
16 choices of "mode on" colours are available,
each representing a different machine tool
installation. (see page 4.2, "Multiple probe
settings").
All probes operating with a single RMI or RMI-Q
must be set to the same "mode on" colour choice;
any multiple probes located on adjacent machines
must all be set to an alternative "mode on" colour
choice.
NOTE: Each probe per "mode on" colour choice
needs to be partnered with the RMI or RMI-Q.
By configuring multiple probes to a single "mode
on" colour choice, all probes using this "mode on"
colour choice will have the same identity.
The probe to be partnered is partnered after
selecting the multiple probe mode setting and
choosing the "mode on" option. (see page 4.4,
"Changing the probe settings").
There is no limit to the number of probes that can
be used with a single RMI or RMI-Q so long as
they all have the same "mode on" colour choice.
All RMP400 probes are factory set to "mode off".
The addition of any further probe(s) into a single
probe installation will require that all probes are
reconfigured to the same "mode on" colour choice
and that one of the probes is then repartnered
with the RMI or RMI-Q.