ABQ INDUSTRIAL MiniVLS Laser Speed Sensor Instructions
- June 13, 2024
- ABQ INDUSTRIAL
Table of Contents
MiniVLS Instructions – Laser Speed Sensor
Instructions
Specification
| Optical Range: | 100 – 2000 mm typ. |
|---|---|
| Fixing method (Threaded): | M20 x 1.5mm thread (bulkhead fixing). |
| Fixing method (Plain body): | Slotted for bracket mounting. |
| Supply current: | 30mA typ. |
WARNING
LASER RADIATION DO NOT STARE INTO BEAM CLASS II LASER PRODUCT
Pin Connections
| Molded Cable | Screened Cable |
|---|---|
| Pin 1 | Brown |
MiniVLS xx2 8 to 24V
MiniVLS xx3 6 to 12V
Pin 3| Blue| Green| Ground
Pin 4| Black| Yellow| Signal output (NPN, 4.7K pull-up internally)
Instructions for use
- Fix a piece of reflective tape as shown below.
- The minimum size of the reflective target in the direction of travel should be twice the size of the light source image.
- Arrange the laser speed sensor fixing so the beam is roughly in the center of the tape.
- With the laser speed sensor connected, the LED should light as a signal is received back from the target. On fast rotating targets the LED will appear to be on continuously. 4.7k resistor pull-up resistor is connected internally sensor, no need to connect extra pull-up resistor externally.
Tape orientation for use on discs or shafts.
Use Without Reflective Tape.
Under controlled conditions reflective tape may not be required. If there is
an existing difference in reflectivity on part of the object to be monitored
then this may be used e.g. keyways and slots in bright shafts, spokes of a
wheel, fan blades etc.
If there is more than one target per revolution of the shaft, then the
resulting reading must be divided by the number of targets to obtain the
correct reading. In the case of multiple targets these must be equally spaced
around the shaft or disc or jitter will occur in the measured value, this
effect is most apparent at slow speeds.
On bright shafts it is possible to paint a black non-reflective segment and
conversely on non-reflective shafts a white mark can be painted.
Caution
The unit detects contrasts in reflectivity no differences in colour. As
conditions can vary greatly from application to application some
experimentation may be required to determine the best method.
Distributed by: ABQ Industrial LP USA
Tel: +1 281-516-9292 /
888-275-5772 eFax: +1
866-234-0451
Web: https://www.abqindustrial.net
E-mail: [email protected]