Renishaw QUANTiC RTLC40-S, Installation Manual, Page: 13 / 24

11 QUANTiC RTLC40-S installation guide
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 spacer with the aperture under the optical centre of the readhead to allow
normal LED function during set-up procedure. 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 (page 13) .
Roll
0° ±0.8°
Yaw
0° ±0.9°
Pitch
0° ±1°
Rideheight
2.1 ± 0.2 mm
Readhead LED diagnostics*
Green Orange Red
flashing flashing flashing
Readhead set-up LED status
Green spacer
Mode LED Status
Installation
mode
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
Calibration
mode
Blue single flashing Calibrating incremental signals
Blue double flashing Calibrating reference mark
Normal
operation
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)
Alarm
Four red flashes Low signal, over signal, or overspeed;
system in error
Red and Purple
flashing (analogue
variant only)
AGC out of normal operating range
*
See ‘Troubleshooting’, page 14 for more information on diagnosing faults.