Troubleshooting - Renishaw QUANTiC RTLC40-S Installation Manual

Troubleshooting

Fault
LED on the readhead is blank
LED on the readhead is flashing red
during installation mode
Unable to get a green LED over the
complete axis length
Can't initiate the calibration routine
22 QUANTiC RKLC40-S incremental linear encoder system
™
Cause
There is no power to the readhead
The signal strength is < 50%
System run-out is not
within specification
Signal size is < 70%
• Ensure 5 V is supplied at the readhead
• For cable variants, check the correct wiring of the connector
• If using the analogue variant of QUANTiC with the ADTi, ensure the appropriate adaptor cables are connected
• Check the readhead optical window and scale are clean and free from contamination
• Restore factory defaults (see page 21) and check the alignment of the readhead. In particular:
• Rideheight
• Yaw
• Offset
• Ensure the correct scale and readhead combination
• Use a DTi gauge and check the run-out is within specifications
• Restore factory defaults (see page 21)
• Realign the readhead to obtain a green flashing LED at the mid-point of the run-out
• Recalibrate the system (see page 20)
• Realign the readhead to obtain a green flashing LED
Possible solutions