L-gage q50a, Complementary discrete output sensor, Teach-mode programming – Banner L-GAGE Q50 Series User Manual
Page 3: Sensing window with complementary outputs

L-GAGE Q50A –
Complementary Discrete Output Sensor
page
3
Banner Engineering Corp.
•
Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Using the Q50A Complementary Discrete Output Sensor
Response Speed
Response speed is either Fast (4 ms) or Slow (48 ms), depending on model.
Window Limits
Window limits may be taught to the sensor either remotely (using the gray
wire) or by using the sensor’s Teach push button.
The Q50 sensor operates in two modes: TEACH (or programming) mode and
RUN mode.
NOTE: All LED indicators momentarily go OFF when the sensor changes state
between RUN and TEACH modes.
Indicator Status Conditions
Indicator
Status
Range LED
Green — Target is within sensing range
(green/red)
Red — Target is outside sensing range
Flashing Green — Discrete output overloaded
OFF — Sensor Power OFF
Teach/Output
Yellow (window limits) — Target is within taught limits
LED
Yellow (fixed field) — Target is closer than cutoff limit
(yellow/red)
OFF — Target is outside taught window limits
Red — Sensor is in TEACH mode
TEACH-Mode Programming
Push-Button Procedure for Teaching Window Limits (Complementary
Outputs)
1. Press and hold the Teach push button until the Teach LED turns red (depress
button for about 2 seconds). This indicates the sensor is waiting for the first
window limit.
2. Position the target for the first limit. The Range LED should be green,
indicating a valid target. Briefly “click” the Teach push button. This will teach
the sensor the first limit. The Teach LED will flash red at 2 Hz to
acknowledge receiving the first window limit; it is now waiting for the second
limit.
3. Position the target for the second limit and “click” the Teach push button
again to teach the sensor the second limit. The Teach LED will return to
either yellow or OFF as the sensor returns to RUN mode.
NOTE: The yellow LED follows the black wire output.
3
2
1
0
50
100
Target Position (mm)
Color Sensitivity (mm)
150
200
90% Reflectance
Kodak White Card to 18%
Reflectance Grey Card
90% Reflectance
Kodak White Card to 6%
Reflectance Black Card
Figure 4. L-GAGE Q50A Complementary Discrete
Color Sensitivity vs. Position (This
represents the expected change in output
when the target color is changed from a
90% reflectance Kodak White Card to a
6% and 18% reflectance surface.)
Figure 5. Programming a single pair of sensing window limits,
complementary outputs
20
24
16
12
8
4
0
50
100
Target Position (mm)
Hysteresis (mm)
150
200
Q50A Fast Response
Q50A Response Times
Note: Q50AV range is 50 - 150 mm
Q50AVY range is 50 - 200 mm
Q50A Slow Response
Note: Surface color does not affect hysteresis (6% black to 90%
white reflectance surfaces)
Figure 3. L-GAGE Q50A (Complementary Discrete)
Hysteresis vs. Position
NOTES:
Color sensitivity is independent of response time
Q50A..(infrared models) span is 50-200 mm
Q50AV.. (visible red models) span is 50-150 mm
NOTE:
Surface color does not affect hysteresis (6% black to 90%
white reflectance surfaces).
RANGE
IN
OUT
TEACH
OUTPUT
Sensing Window with
Complementary Outputs
White
Wire
Conducting
Black
Wire
Conducting
Sensing Range
White
Wire
Conducting
Window