Renishaw TONiC FS T3 1 Series Functional Safety Installation Manual And Safety Manual page 39

Readhead set-up
Ensure that the scale, readhead optical window and mounting face are clean and free
from obstructions.
NOTE: When cleaning the readhead and the scale apply the cleaning fluid sparingly, do not soak.
To set the nominal rideheight, place the green spacer with the aperture under the optical centre
of the readhead to allow normal LED function during set-up procedure. Adjust the readhead to
maximise the signal strength along the full axis of travel to achieve a green set-up LED on the
readhead (> 70% signal). If a DOP interface is used, aim for a blue LED on the interface.
NOTE: The readhead should be installed and set-up with the Automatic Gain Control (AGC)
switched off (CAL LED off). When reinstalling the readhead the factory defaults should be
restored (see 'Restoring factory defaults' on page 42).
Original instructions
Readhead set-up LED status
NOTE: For full readhead and interface LED
diagnostics, see
Green Orange Red
Pitch
0° ±1°
DOP interface set-up LED status
Blue or
Green Orange Red
purple
'Diagnostic LEDs' on page 40.
Yaw
0° ±0.4°
Roll
0° ±0.5°
Green spacer
Rideheight
2.1 ±0.15 mm
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