Readhead Mounting And Alignment - Renishaw QUANTiC RTLC40-S Installation Manual

Readhead mounting and alignment

Mounting brackets
The bracket must have a flat mounting surface and should provide adjustment to enable conformance to the
installation tolerances, allow adjustment to the rideheight of the readhead, and be sufficiently stiff to prevent
deflection or vibration of the readhead during operation.
Readhead set-up
Ensure that the scale, readhead optical window and mounting face are clean and free from obstructions.
NOTE: When cleaning readhead and scale apply cleaning fluid sparingly, do not soak.
To set nominal rideheight, place the appropriate spacer with the aperture under the optical centre of the readhead
to allow normal LED function during set-up procedure. RTLC40-S: green spacer, RTLC40/FASTRACK: black spacer.
Adjust the readhead to achieve a flashing Green LED along the full axis of travel. The faster the flash rate,
the closer it is to optimum set-up. The optional Advanced Diagnostic Tool ADTi-100 (A-6195-0100) and
ADT View software can be used to optimise signal strength in challenging installations.
See www.renishaw.com/adt for more information.
NOTE: When re-installing the readhead factory defaults should be restored,
QUANTiC readhead and RTLC40-S
Pitch
0° ±1°
QUANTiC linear installation guide
see page 12.
Yaw
0° ±0.9°
Readhead set-up LED status
Roll
0° ±0.8°
IMPORTANT:
Use green spacer
with RTLC-S
Rideheight
2.1 ± 0.2 mm
Readhead LED diagnostics
Mode
Installation mode
Calibration mode
Normal operation
Alarm
QUANTiC readhead and RTLC40 /FASTRACK
Green Orange Red
flashing flashing flashing
IMPORTANT:
Use black spacer with
RTLC/FASTRACK
LED
Green flashing Good set-up, maximise flash rate for optimum set-up
Orange flashing Poor set-up, adjust readhead to obtain Green flashing LED
Red flashing Poor set-up, adjust readhead to obtain Green flashing LED
Blue single flashing Calibrating incremental signals
Blue double flashing Calibrating reference mark
Blue AGC on, optimum set-up
Green AGC off, optimum set-up
Red Poor set-up; signal may be too low for reliable operation
Blank flash Reference mark detected (visible indication at speed <100 mm/s only)
4 red flashes Low signal, over signal, or overspeed; system in error
Yaw
0° ±0.9°
Pitch
0° ±1°
Status
Roll
0° ±0.8°
Rideheight
1.9 ±0.17 mm
from FASTRACK
top surface
11