Readhead Mounting And Alignment - Renishaw TONiC T103 Series 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.
To set 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 digital Ti / TD interface is used, aim for a Blue LED on the interface.
NOTE: The readhead should be installed and set-up with the AGC switched off (CAL LED off).
When re-installing factory defaults should be restored
0° ±0.4°
Pitch
0° ±1°
TONiC RKLC20-S linear installation guide
(see page 11).
Readhead set-up LED status
Yaw
Green Orange
Roll
0° ±0.5°
Green spacer
Rideheight
2.1 ±0.15 mm
T103 readhead LED diagnostics
x
LED
Set-up
Incremental
Reference
mark
CAL
Operating
Calibration
Reset
*
Flash will effectively be invisible when incremental signal level is >70% when passing reference mark.
Red
Ti0004 to Ti20KD and TD4000 to TD0040 Interface LED diagnostics
Signal
Incremental Purple
Blue
Green
Orange
Red
Red / blank ‑ flashing
Blue / blank ‑ flashing
Purple / blank ‑ flashing
Reference
Blank flash
mark
* Alarm output will take the form of 3‑state or line driven E‑ signal depending on interface configuration.
Also, some configurations do not output overspeed alarm. See product nomenclature for details.
- Momentary status only, while fault condition remains.
- Alarm may result in axis position error, re-datum to continue.
Indication
Green Normal set-up: signal level >70%
Orange Acceptable set-up; signal level 50% to 70%
Poor set-up; signal may be too low for reliable operation;
Red
signal level <50%
Green (flash) *
Normal phasing
Orange (flash) Acceptable phasing
Red (flash) Poor phasing; clean scale and recalibrate if required
On Automatic Gain Control – On
Off Automatic Gain Control – Off
Single flashing Calibrating incremental signals
Double flashing Calibrating reference mark
Flashing at
Restore factory defaults
power-up (< 2s)
Indication Status
Normal set-up; signal level 110% to 135%
Optimum set-up; signal level 90% to 110%
Normal set-up: signal level 70% to 90%
Acceptable set-up; signal level 50% to 70%
Poor set-up; signal may be too low for reliable
operation; signal level <50%
Poor set-up; signal level <20%; system in error
Over speed; system in error
Over signal; system in error
Reference mark detected
(speed <100 mm/s only)
Status
Alarm output *
No
No
No
No
No
Yes
Yes
Yes
No
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