23
Original instructions
14.7 Validating an installation
To validate the encoder installation the set‑up LED provides instant verification of the encoder’s signal
strength and therefore its accurate alignment and installation.
The encoder requires power to enable the set-up LED; this can be via an appropriate cable plugged into
the machine’s controller. See
for encoder power supply requirements.
NOTE:
If the set-up LED is obscured then the signal strength can be obtained using the Advanced
Diagnostic Tool for absolute encoders (ADTa-100).
LED status
Description
Required action
BLUE
Signal level is optimal
No adjustment required
GREEN
Signal level is good
No adjustment required
ORANGE
Signal level is acceptable
Ensure the extrusion is parallel to the
machine axis of motion
and adjust the readhead
to maximise the signal strength along the
full axis of travel to achieve a Green or
Blue LED
RED
Signal level is NOT
acceptable
FLASHING
RED
Unable to determine the
position
Readhead not picking up the scale due to
contamination or poor installation
NOTE:
Flashing LED indicates scale
reading error. Flashing state is latched for
some serial protocols.
Remove power to reset.