Calibration Overview - Renishaw ATOM RTLF Series Installation Manual

Calibration overview

Calibration is an essential operation that completes readhead set-up, with the optimum incremental and reference mark signal settings stored in the readhead's non-volatile memory. This section is an
overview of the calibration procedure for an ATOM system. For more detailed information on calibrating the system see 'System calibration' on page 45.
Ensure AGC is switched off.
Systems are shipped with AGC switched off.
When AGC is switched off the readhead set-up LED will be green, orange or red.
Align the readhead to maximise signal strength over the full length of travel.
The readhead set-up LED will be green.
Initiate incremental signal calibration routine.
The readhead set-up LED will be single flashing blue.
Move the readhead along the axis at slow speed (< 100 mm / s).
The readhead set-up LED will start double flashing blue.
No reference mark Reference mark
Manually exit calibration routine. Move the readhead back and forth over the chosen reference mark
The readhead set-up LED will stop flashing blue. until the readhead set-up LED stops flashing blue.
The system is now calibrated and ready for use.
AGC can now be switched on if required.
NOTE: If calibration fails (readhead set-up LED continues flashing blue), restore factory defaults, see page 47, and repeat the installation and calibration routine.
44 ATOM linear encoder system