L-gage q50a, Complementary discrete output sensor, Teach-mode programming – Banner L-GAGE Q50 Series User Manual

Page 3: Sensing window with complementary outputs

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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

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