Renishaw MP12 Installations- Und Anwenderhandbuch Seite 36

1-26
FAULT FINDING – If in doubt, consult your probe supplier.
POOR PROBE REPEATABILITY continued
Probing occurs within
machine's acceleration
and deceleration zones.
Probe feedrate too high.
Temperature variation
causes excessive
machine and workpiece
movement.
Machine has poor
repeatability due to loose
encoders, tight slideways
and/or accident damage.
PROBE FAILS TO SWITCH OFF
Probe in timeout mode.
Probe placed in carousel
during timeout mode can
be reset by carousel
activity.
Probe is inadvertently
switched on by
OMM/OMI.
No line of sight between
probe and OMM/OMI.
Review probe software.
Perform simple
repeatability trials at
various speeds.
Minimise temperature
changes. Increase
frequency of calibration.
Perform health check on
machine.
Wait a minimum 2 min
20 s for probe to switch
off.
Use lighter styli. Review
use of timeout mode.
Increase distance
between probe and
OMM/OMI. Reduce
OMM/OMI signal strength.
Ensure line of sight is
maintained.
PROBE STATUS LED FAILS TO
ILLUMINATE
Batteries Check battery
installed installation.
incorrectly.
MI 12 POWER LED FAILS TO
ILLUMINATE WITH POWER ON
Faulty electrical Check all
contact. connections.
Fuse blown. Locate and replace
blown fuse.
Incorrect power Ensure power supply
supply. is 24 V dc.
MI 12 LOW BATTERY LED REMAINS
ILLUMINATED
Batteries Check battery
installed installation.
incorrectly.
Batteries dead. Replace batteries.
PROBE STATUS LED REMAINS
ILLUMINATED
Battery voltage Replace batteries.
below useable
level.