MicroE Optira Installation Manual
Celera Motion
IM-1001 | REV181211
Page 12
©2018 Celera Motion
LED Indications for Index Detection
•
LED flashes bright when passing over index
•
LED stays bright if stopped on index
Align Sensor
Perform the following steps to align the sensor:
6.1.4.2 Status LED Version B
Version B can be specified when there is a requirement for low ambient light. Version B operates
identically to Version A on each power-up state facilitating sensor alignment. After 5 minutes,
however, the LED operates as a fault indicator only.
If calibration is initiated after the 5 minute period the LED will blink as in Version A but will revert
to alarm indication only after calibration is complete.
6.1.5 LSB Index Calibration
Calibration is the process where the Least Significant Bit (LSB) index is set to its most stable
operating location, which is centered within the sensor’s 20 µm wide, raw Index Window (IW).
Calibration is only required for sensors with the LSB Index option
(see
Section 7.0 Order
Guide
). Analog sensors or digital Optira sensors configured with the 20 µm Index Window do not
require calibration.
When to perform calibration:
•
When installing the sensor for first time
•
If the sensor is subsequently remounted
•
If the scale is replaced
Step
Action
1. Apply power to sensor.
2. Ensure that the sensor’s mounting screws are loosely tightened. Slowly move the sensor by
allowing it to slide on the mounting surface until the Status LED illuminates green.
3. Confirm that the green LED flashes brightly when passing over the index. If not, readjust the
sensor in the Y direction and repeat the above procedure.
4. When alignment is completed, tighten the sensor mounting screws per the torque
specification: 0.34Nm (3 inch-lbs.) maximum.
5. Confirm that the LED remains green over the full range of motion.
6. If the sensor is not aligned over the entire range of motion:
•
Loosen the sensor mounting screws and repeat this procedure starting at Step 1.
•
Confirm that the scale has been installed parallel to the motion axis and that the LED
remains green through the full range of motion.
Result
: The LED remains green throughout travel and flashes over the Index.
ϴ
Z
Z
Slowly slide sensor on its mounting
surface in the Y or
ϴ
Z directions
