Renishaw QUANTiC RTLC40-S Installation Manual page 24

Fault
LED on the readhead is flashing red
over the reference mark
Multiple reference marks are
being output
LED on the readhead is flashing red
and purple (analogue variant only)
LED on the readhead is flashing red
four times upon switch on
24 QUANTiC RKLC40-S incremental linear encoder system
™
Cause
The reference mark is not phased
The readhead reference mark option
is either option B or F, 'All reference
marks are output '
AGC is outside of the normal
operating range
Low signal, over signal, or the
readhead speed is too fast.
The system is in error.
Incorrect termination
(analogue variant only)
• Ensure you are using the reference mark that has been calibrated for referencing your system, as only this
reference mark will be guaranteed to remain phased
• Clean the scale and readhead optical window and check for scratches, then recalibrate the system over the
chosen reference mark (see page 20)
• Calibrate the system ensuring all the incremental signal calibration steps and the reference mark phasing
steps are completed (see page 20)
• Ensure you calibrate the reference mark used for referencing your system, as only this reference mark will be
guaranteed to remain phased
• Check the output signal termination (see page 30)
• When using the readhead with the ADTi-100 in stand-alone mode, ensure the Termination tool (A-6195-2132)
is connected
• Check the the cable continuity
• Ensure the correct scale and readhead combination
• Check the readhead set-up and alignment (see page 19)
• Check the output signal termination (see page 30)
• When using the readhead with the ADTi-100 in stand-alone mode, ensure the Termination tool (A-6195-2132)
is connected
• Exit the CAL mode and restore factory defaults (see page 21)
• Check the readhead set-up and alignment (see page 19)
Possible solutions