Rockwell Automation 42QA User Manual

PHOTOSWITCH
R
Photoelectric Sensors ColorSight Series 9000 User Manual
Introduction
This manual explains how to install, adjust, and program ColorSight Series 9000 photoelectric sensors
2 ColorSight Series 9000 PHOTOSWITCHRPhotoelectric Sensor
T able of Contents
General Specifications 3..................................
Summary of ColorSight Features 4..........................
User Interface 5........................................
Pushbutton 5..........................................
8 Turn Knob 5.........................................
Dip-Switches 6........................................
Indicators 6...........................................
Mounting the Sensor 7...................................
Installing the Fiber Optic Cables 8...........................
Aligning the Fiber Optic Cable Head (A--B #60--2694) 9............
Wiring the Sensor 9.....................................
Dimensions 12........................................
Accessories 13........................................
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General Specifications
2m cable 42QA--G5LE-- A2
5-pin DC micro 42QA--G5LE-- D5
Cat No.
5-pin DC mini 42QA--G5LE-- N5
Sensing Mode Fixed Focus
Sensing Distance 27mm (with A--B #60--2694 fiber optic cable)
Spot Size 5mm (with A--B # 60--2694 fiber optic cable) nominal
Transmitting LED Tri-color red, green, blue
Optical
Color Discrimination Operating Mode Color only, color plus intensity (selectable via dip-switch)
Precision Adjustment 8 position rotary switch
Color Sampling Operating Mode Single, Average (selectable via dipswitch)
Supply Voltage 10 to 30V DC
Current Consumption 50mA nominal
Response Time (single mode) 1.3ms; (average mode) 10ms (C + I mode)
Protection False pulse, reverse polarity on all leads, output short-circuit
Electrical
Output Type (Sensor and Diagnostic) Transistor
Output Load Voltage/Current (Sensor and Diagnostic)
Sensor Output Energized Match/No match- -operate (selectable via DIP switch)
Diagnostic Output Energized Normal operation, i.e., successful learn
Housing Material Valox
Housing Cover Material Radel R5000
Indicators See table on page 6
Mechanical
HF ambient light rejection 25 foot candles
Incandescent light rejection 500 foot candles
Operating Temperature 0_Cto+55_C(32_F to +131_F)
Temperature Drift +/--10_C from learned temperature
Operating Environment Sensor body: NEMA 4 IP54;
Vibration 10--55Hz, 1mm amplitude, Meets or exceeds IEC 60947--5--2
Environmental
Shock 30G with 1ms pulse duration, Meets or exceeds IEC
Relative Humidity Up to 95% noncondensing
Approvals UL, cUL ,CE (applied for) marked for all applicable directives
(single mode) 2.6ms; (average mode) 10ms (C only)
protected (100mA), transient/burst
30V DC, 100mA
Optics assembly: IP40
60947--5--2
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4 ColorSight Series 9000 PHOTOSWITCHRPhotoelectric Sensor
Summary of ColorSight Features
Single color detection with adjustable precision settingsLocal and remote self teach operationColor only and color plus intensity operating modesSingle and averaging sampling ratesSelectable gating inputFixed selectable OFF delayOutput SCP
Reversible supply leads for Source or Sink (PNP or NPN) operation
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User Interface
Using an instrument screwdriver, open the top cover of the sensor to gain access to the user interface panel. This panel contains a pushbutton, 8-turn knob, 6 dip-switches, and LED indicators for configuring and viewing the sensor’s operation and status. A more complete description of each item is described below.
OUTPUT
TD CI SG GT
0CAVLRN
LRN
PWR
LEARN
PRECISION
HI
LO
SCP
FAULT
Pushbutton
A single momentary pushbutton, labeled LRN, is used to “teach” the sensor the color of the target being sensed. With the target in place, momentarily depress this pushbutton. The yellow LED will flash indicating that the sensor is “learning” the target. With the release of the pushbutton, the yellow and red LED will turn OFF indicating a successful learn. If the yellow LED turns OFF, but the red LED turns ON then the learn was unsuccessful.
8 Turn Knob
Labeled PRECISION, an 8 position knob is provided to select the desired level of precision for c olor discrimination. Turning the knob toward HI provides the highest level of color discrimination, with lessening degrees approaching LO.
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Dip-Switches
A bank of 6 dip-switches are provided for configuring various operating modes and parameters available with ColorSight. These are defined in the table below and explained in further detail in the Configuration section on page 10.
Switch Label Function Switch Up Switch Down
S1 None Not used
S2 /= Select target match/no match Output inactive Output active
S3 TD/0 Enable/disable time delay 50ms time delay active No time delay
S4 CI/C Select color + intensity
S5 SG/AV Select single/average mode Single sample mode
S6 GT/LRN Select gate/remote learn mode Input functions as gating
Factory default
mode/color only mode
Color + intensity mode active
active
input
Color only mode active
Average sample mode active
Input functions as remote learn
Indicators
Three LED indicators are provided to indicate a variety of conditions making it easy for installation and troubleshooting. The function of each is described in the table below.
Label Color State Condition
PWR Green OFF Sensor power not present
Steady Sensor power present
OUTPUT/LEARN Yellow OFF Output inactive
Steady Output active
Flash Learn mode activated
FAULT/SCP Red OFF Sensor operating normally
Steady Marginal detection of target
Flash Output SCP active
LED also OFF when LEARN pushbutton depressed.
Includes failure to learn color during LEARN process.
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Mounting the Sensor
Securely mount the sensor on a firm, stable, surface or support using one of the many mounting brackets available from Allen-Bradley. The sensor is supplied with hardware kit #129--130 which contains a plastic mounting nut, lock washer, 2 M5 x 0.8 x 53 screws and nuts.
M5x0.8x53
Combination
Screws and Nuts
(Supplied)
Hardware Kit
(Supplied)
Optional Swivel/Tilt Bracket A -- B #60--2439
1.100
(27.94)
0.500 (12.7)
1.150
(29.21)
1.125 (28.6)
2.0
(50.8)
2.6
(66.04)
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8 ColorSight Series 9000 PHOTOSWITCHRPhotoelectric Sensor
Installing the Fiber Optic Cables
ColorSight has been optimized to work with the Allen-Bradley #60--2694 Fiber Optic Assembly. Other cables may be used also, but with a possible reduction in performance.
Ensure that the fiber optic cable is installed with the emitter end in the source side of the sensor (left entry when viewed from the sensor front face) and the receiver end in the receive side of the sensor. The emitter portion is identified in blue. Care should be taken to ensure that the fiber optic cavity and fiber optic cables are s ecurely seated.
UNLOCK
1. Set lever to UNLOCK position. 2. Insert fibers.
LOCK
3. Rotate lever to LOCK position.
Damage to fiber optic cable may occur if inserted and re­moved with lever in locked position. Always grip by plastic tips, not cable sheathing.
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Aligning the Fiber Optic Cable Head (A--B #60--2694)
The head assembly should be positioned and securely fastened so that the lens is 27mm (1 1/16in) from the target to be sensed. When operating the sensor in COLOR ONLY mode this tolerance should not exceed +/-- 3mm (1/8in). For high precision color discrimination applications using the COLOR PLUS INTENSITY mode, the tolerance can be no more than +/-- 0.75mm (1/32in).
Distance
plus tolerance
Target
Wiring the Sensor
Models of ColorSight are available in one of three different connection types as identified in the following table. Allen-Bradley recommends the use of the 889 Series of cordsets and patchcords on the quick-disconnect models. All external wiring should conform to the National Electric Code and all applicable local codes.
Lead Color Pin Assignment
Designation
V+ or V-- Brown 1 4
V-- or V+ Blue 3 2
Signal output Black 4 1
Fault output Orange 5 3
Learn/Gate input  White 2 5
2m Cable 5-pin Micro QD 5-pin Mini QD
1
132
5
4
5
2
4
3
Polarity of supply voltage defines sensor output type –i.e. PNP or NPN
PNP when brown lead connected to V+ and blue lead connected to V- -
NPN when brown lead connected to V-- and blue lead connected to V+
Function determined by selector switch S6
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Wiring Diagrams
Cable version wired with PNP outputs
Brown
White
Diagnostic
Orange Black Blue
Micro QD wired with PNP outputs Micro QD wired with NPN outputs
1
2
5 4 3
Sensor
Diagnostic
Sensor
Load
Load
Load
Load
+
10--30V DC
Teach/Gate
--
+
10--30V DC
Teach/Gate
--
Cable version wired with NPN outputs
Brown
White Orange Black Blue
1
2
5 4 3
Diagnostic
Sensor
Diagnostic
Sensor
Load
Load
Load
Load
--
Teach/Gate
+
10--30V DC
--
10--30V DC
Teach/Gate
+
Mini QD wired with PNP outputs Mini QD wired with NPN outputs
4
5 3
Diagnostic
Sensor
1 2
Load
Load
+
10--30V DC
Teach/Gate
--
4
5 3
Diagnostic
Load
Sensor
1 2
Load
--
10--30V DC
Teach/Gate
+
Configuring the Sensor
ColorSight can be configured to meet a wide variety of industrial applications. Various levels of coarse and fine color discrimination can be selected along with time delay, gating input, and remote learn options. Before initial use, it will be necessary to configure the sensor for the application at hand.
Using the table on page 6 as a reference, set the dip-switches on the user interface to define the following operating parameters.
1. Set the output operation, S2
The sensor output may be activated upon either a match or no match color condition. The principal is the same as a light or dark operate condition in monochrome photoelectric sensors. The factory default setting of dip switch S2 is (=) which activates the output upon a c olor match condition. Move this switch to () for the opposite effect.
2. Set the time delay, S3
In some high speed applications it may be desirable to “stretch” the output signal to support slower PLCs. For this reason, ColorSight provides the option of selecting a 50ms time delay. This delay may be activated by moving dip-switch S3 to the (TD) position. The factory default setting is (0).
3. Set the color match operating mode, S4
Not all applications will require the same level of color discrimination. Therefore, ColorSight offers two distinctly different modes of operation:
1. Color Only: which measures proportions of the RGB values, and
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2. Color Plus Intensity which measures the absolute RGB values.
The selection of one of these modes is made by toggling dip switch S4. For most applications, the Color Only mode will be suitable. When minute changes in target color must be recognized the Color Plus Intensity mode should be used.
4. Set the sampling rate, S5
ColorSight can be configured to operate at one of two fixed sampling rates. The factory default setting is (AV), or, averaging mode. In this mode the sensor will take multiple samples of the target and average the results for further processing. This type of operation is ideal for textured targets such as lumber and fabric. For smooth targets such as plastic, metal, or glass, selection of the (SG), or single sample, operating mode will yield acceptable results.
5. Set gating or remote learn operation, S6
A fifth lead (white) is provided on the sensor for use as either a gating input or remote learn input. The function of this lead is determined by the position of dip-switch S6. The factory default setting for S6 is LRN which will set this function for remote learn. In this mode, the sensor’s self-teach will be activated whenever a momentary (at least 120ms) signal is applied to this lead. Acknowledgement of a successful learn, will be indicated by an active output on the orange fault lead. This lead may be tied to a PLC or pilot light for visual indication. In the event that the learn was not successful, this output will be inactive.
With dip-switch S6 in the (GT) position, the white lead will serve as a gating input. In this mode, the sensor output will be enabled only when this input is active (logical AND).
6. Congratulations, the sensor is now ready to learn the target color.
7. Apply power to the sensor.
8. Position the target 27mm from and perpendicular to the fiber optic head. Ensure that the target color fill the entire spot size provided by the sensor.
9. For local self--teach operation follow step 10, otherwise, follow step 11.
10. Momentarily depress the LRN pushbutton. The yellow LED will flash indicating that the sensor is “learning” the target. With the pushbutton released, the yellow and red LED will turn OFF indicating a successful learn. If the yellow LED turns OFF, but the red LED turns ON then the learn was unsuccessful.
11. Applying a momentary (at least 120ms) signal of to the white lead of the sensor has the same effect as depressing the LRN pushbutton. Acknowledgement of a successful learn will be indicated both locally and via the orange diagnostic lead. Note that the fault output remains active with the exception of an unsuccessful learn and during the learn process.
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12. Sequence the target in and out of the sensors field of view to ensure proper color discrimination. It may be necessary to adjust the 8-turn knob to a higher setting to provide a higher degree of color discrimination.
13. Congratulations! The sensor has successfully learned the target.
Dimensions—inches (mm)
2.190
(55.62)
40
(1.58)
74.93
(2.950) Ref
M30 X 1.5
External Thread
1/2NPSM
Internal Thread
40.00
(1.575)
41.91
(1.650)
24.64
(0.970)
30.35
(1.195)
Mounting Hole
Centerline
Connector Version
Micro Style Mini Style
13.97 (0.550)
Thread Size
Micro Style
Mini St yle
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DC
M12 x 1
1Keyway
7/8--16 UN
1Keyway
17.78 (0.700)
ColorSight Series 9000 PHOTOSWITCHRPhotoelectric Sensor 13
Accessories
Description Catalog Number
1.8m (6ft) mini QD
Cordset
2m (6.5ft) micro QD
Cordset
889N- F5AF- 6F
889D- F5AC- 2
Swivel/Tilt Bracket 60- 2439
360_ Rotation Mounting
Bracket
Universal Mounting
Assembly
60- 2513
60- 2421
Universal Mounting Assembly (for Fiber
Optic cable)
60- 2008
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14 ColorSight Series 9000 PHOTOSWITCHRPhotoelectric Sensor
Terms and Definitions
Average Mode
A mode of operation, which takes multiple samples of the target being sensed. A typical application using this mode would be the color discrimination of textured materials such as textiles and lumber.
Color Only Mode
A mode of operation found in some color recognition sensors in which the target color is determined by measuring the hue and chroma attributes only. This type of mode is ideal when there is a large contrast between the targets being sensed. An example being, the discrimination of yellow versus red caps in a bottling application.
Color Plus Intensity
A mode of operation found in some color recognition sensors in which the target color is determined by measuring the absolute RGB values (hue, value, chroma). This type of mode is intended for applications where very high precision levels of color discrimination are required. An example is the discrimination of close shades of red.
NPN
A solid state output type for low voltage DC sensors with a sinking output. The load is connected between the (+) power connection and the sensor output. Low leakage currents, fast response times, and high switching currents are typical c haracteristics of this output type.
OFF Delay
A type of time delay which will delay the operation of the output for a set period of time after the target being sensed is no longer detected. An OFF time delay is typically used to “stretch” the output signal to provide ample scanning time for slower PLCs.
PNP
A solid state output type for low voltage DC sensors with a sourcing output. The load is connected between the sensor output and the (-- ) power connection. Low leakage currents, fast response times, and high switching currents are typical characteristics of this output type.
Single Mode
A mode of operation, which takes only single sample of the target being sensed. This mode of operation is suited for color discrimination on flat or untextured surfaces.
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Troubleshooting
Green LED does not illuminate
Target cannot be learned
Target is learned but color discrimination is not consistent over time
Ensure power is connected to the sensor.
Ensure fiber optic cables are securely seated in sensor cavity.
Ensure emitter (blue) side of fiber optic cable is inserted in the emitter cavity (blue).
Ensure the fiber optic head is 27mm (plus tolerance) over and perpendicular to the target.
Ensure fiber optic cable is not damaged by checking the spot size for intensity.
Ensure the target being sensed is not directly over high-frequency fluorescent lighting.
Targets with glossy surfaces may require positioning the fiber optic cable head at an angle to prevent interference from reflections.
Ensure target color, shape, and distance to fiber optic LED are consistent. If target surface is textured such as textiles or lumber, ensure that the Average mode is being used. Single operating mode is best used for smooth surfaces such as metal or glass.
Ensure the proper operating mode is activated. Color only mode is intended for targets with large contrast, i.e., blue vs. red. Color Plus Intensity mode is best for targets with little contrast, i.e., light red vs. medium red. Ensure ambient temperature is within operating temperature and tolerance of the sensor.
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Publication 75027--031--01 (A), November 1999
75027--031-- 01(A), November 1999
Copyright 1999 Rockwell Automation
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