Qc50 series true color sensor, Overview, Sensor configuration – Banner QC50 Series User Manual

Page 2: Outputs, Sensing modes, Tolerance levels, Off-delay, Sensing response speed

QC50 Series True Color Sensor

31UHY&

Banner Engineering Corp.

•

Minneapolis, MN U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

QC50 Series True Color Sensor

P/N 111523 rev. B

Banner Engineering Corp.

•

Minneapolis, MN U.S.A.

www.bannerengineering.com • Tel: 763.544.3164

��

Figure 3. 20 ms OFF-delay (d_20): output

continues for an interval after
sensing stops (applies to all
outputs)

Overview

The easy-to-use QC50 series true color sensor uses modulated white light with red,

green, and blue (R, G, B) electronic filters to scan for the presence of one, two or

three colors. Its compact size allows it to be mounted almost anywhere. Configuration

options include Programming mode for color detection parameters and Setup mode

for selecting an adjustable output OFF-delay or selecting between two response

speeds (some models). Three solid-state outputs may be set individually for color

differentiation or for color-plus-intensity differentiation (see Sensing Modes below).
The sensor has two push buttons, Set and Select, plus a 4-digit LED display, an

Output LED, and three Output Status LEDs (one for each sensing output), for easy

programming and status monitoring during operation. Push buttons can be locked out

for security (see page 5).

Sensor Configuration

Outputs

The QC50 can be programmed to sense one, two, or three colors. Three outputs are

available for this purpose. When a programmed color is sensed, the yellow Output

(“OUT”) indicator LED and the associated green Output Status LED turn ON, and the

respective output conducts.

Sensing Modes

The Sensor functions in one of two sensing modes: Color only (expressed “C” on the

4-digit display) or Color-Plus-Intensity (expressed “C_I”). In Color sensing mode,

only colors are sensed. This is most useful for sorting obvious color differences (for

example, red or black or green).
The Color-Plus-Intensity option refines the sensor’s capabilities to include grayscale

as well, broadening the spectrum of colors and shades which the sensor can be

programmed to detect. This feature allows “batch” sorting or identifying within a color

family (for example, light blue or medium blue or dark blue).

Tolerance Levels

The Sensor can be configured for one of 10 levels of tolerance (0 to 9). A higher

number (for example 9, expressed “toL9” on the 4-digit display) permits the sensor

to accept a wider range of target conditions, compared with lower tolerance levels. A

tolerance level of 0 (expressed “toL0”) causes much more precise discrimination and

a narrower range of target conditions.

OFF-Delay

An output OFF-delay value up to 40 milliseconds may be set (see page 5). This value

represents the time interval, following termination of sensing, during which the

outputs remain active (see Figure 3). NOTE: The selected delay will apply to all three

outputs.

Sensing Response Speed

The QCX50 models feature two selectable sensing response speeds: Normal and Fast.

At either speed, sensing resolution is improved over that of the QC50 models. The

faster the speed, the lower the resolution. Normal speed is the recommended mode

for most applications and provides the best resolution. Normal speed enables such

high-resolution sensing as differentiating between similar shades of beige.

��
��

��

��
��

Figure 1. Sensor features

�� 

��

Figure 2. A quick sensor programming

guide