Renishaw FASTRACK, Installation Manual, Page: 17 / 25

15 QUANTiC RTLC40 / FASTRACK installation guide
Troubleshooting
Fault Cause Possible solutions
LED on the readhead is Blank There is no power to the readhead
u Ensure 5 V supplied at the readhead
u For cable variants check correct wiring of connector
u If using the analogue variant of QUANTiC with the ADTi ensure appropriate adaptor cables are connected
LED on the readhead is Red flashing
during installation mode
The signal strength is < 50%
u Check the readhead optical window and scale are clean and free from contamination
u Restore factory defaults (page 14) and check alignment of the readhead. In particular:
• Rideheight
• Yaw
• Offset
u Ensure the correct scale and readhead combination
Unable to get a Green LED over the
complete axis length
System run-out is not within specification
u
Use a DTi gauge and check the run-out is within specifications
u Restore factory defaults (page 14)
u Realign readhead to obtain a Green flashing LED at the mid-point of the run-out
u Recalibrate the system (page 13)
Can’t initiate the calibration routine Signal size is < 70%
u Realign readhead to obtain a green flashing LED
During calibration the LED on the
readhead remains single flashing
Blue even after moving it along
the full axis length
The system has failed to calibrate the
incremental signals due to the signal
strength being < 70%
u Exit CAL mode and restore factory defaults (page 14)
u
Check readhead set-up and alignment
(page 12)
Incorrect termination (analogue variant only)
u Check output signal termination (page 19)
u When using with ADTi-100 in stand- alone mode ensure Termination tool is connected,
Renishaw part number A-6195-2132
u Exit CAL mode and restore factory defaults (page 14)
u Check readhead set-up and alignment (page 12)
During calibration the LED on
the readhead is double flashing
Blue even after moving it past the
reference mark several times
The readhead is not seeing a
reference mark
u Ensure correct position of reference mark selector magnet
u Ensure you are moving the readhead past your chosen reference mark several times
u Check the readhead/selector magnet orientation
u Check the readhead optical window and scale are clean and free from contamination