Banner QC50 Series - Manual (Page 2)

QC50 Series True Color Sensor
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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
3
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
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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.
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Figure 1. Sensor features
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Figure 2. A quick sensor programming
guide