Allen-Bradley
User’s Manual
PHOTOSWITCH
42CRC Color Registration Control
(Cat. No. 42CRC-4000, 4001)
Table
of Contents
Title Page
Description 1,2............................................
Installation
a. Lens Location 2.....................................
b. Mounting 2.........................................
c. Wiring 3...........................................
Alignment
a. Opaque Web Material 3...............................
b. Opaque Non-Reflective Web Material 3...................
c. Transparent Web Material
with Dark Opaque Mark 4.............................
Operating Modes
a. Latch 5............................................
b. Non-Latch 5........................................
c. Light or Dark Mark Sensing 5..........................
d. Automatic Operation 5................................
e. Manual Operation 5..................................
f. Red and Green Light Sources 6.........................
Additional Features
a. Output Dwell 7......................................
b. Gated Operation 7....................................
c. Diagnostic Alarm Output 8.............................
d. Contrast Check 9.....................................
Operation 10.............................................
Maintenance 11...........................................
Specifications 11..........................................
a. Outline Dimensions 13.................................
b. Internal Schematic 13..................................
c. Diagnostic Resistor Selection 14.........................
d. Cable Color Coding 14.................................
e. Wiring Diagrams 15, 16...................................
f. Performance Curves 17.................................
Publication PA-8853 — February 1994
42CRC Color Registration Control
1
Description
The Photoswitch Type 42CRC Series 4000 LED Color Registration Mark Control
with Automatic Gain Control (AGC) is a fixed focus diffuse-reflective scanning
device designed to detect pre-printed registration marks against contrasting
backgrounds. Detection of the marks is achieved by sensing the difference in the
gray-scale response to the mark and background.
This device has two sources of emitted light, a red and a green LED that
are selected by an operating-mode switch. The choice of a red or green
LED broadens the control’s capability of detecting a wide range of mark
and background colors.
A small light spot is projected on the material being scanned. The reflectivity of the material at the spot defines the level of the received signal.
Changes in the reflectivity, due to the contrast between the printed mark
and the background is recognized by the control, which provides an output.
This output can then be used by the packaging machine to properly cut,
seal, crimp, or fold packages or tubes.
The 42CRC Series 4000 also has a number of unique features that enhance
flexibility and reliability.
S An automatic gain sensitivity control permits fully automatic operation
eliminating the need for constant operator interface when mark to background colors change.
S A manual sensitivity selection mode enables the operator to fine tune the
control to detect poor quality marks.
S A built-in diagnostic system provides early-warning alarm indication of
gradual loss of operating margin due to changes in contrast, misalignment, or dust prior to loss of output signal, avoiding unexpected process
disruption.
S Custom microcircuitry for very high sensitivity and increased intelli-
gence in a small workable package.
S Fast 250 microsecond response time.
S Latch or automatic reset functions.
S Adjustable output dwell time.
S Selectable light or dark mark detection.
S Continuous output short circuit protection.
S Reverse polarity protection.
2
42CRC Color Registration Control
Description
(Continued)
S An external gate input makes it possible to blind the control during por-
tions of the machine cycle, eliminating the possibility of false signals
between registration marks.
S Analog test points allow evaluation of mark contrast prior to running a
machine, and three LED status indicators provide setup ease and
accuracy.
S Quick Disconnect design for ease of installation, reduced downtime and
replacement cost.
S NPN or PNP outputs. Model 4000 has one NPN (sinking) output rated
100mA at 30 VDC. Model 4001 has one PNP (sourcing) output rated
100 mA at 30 VDC. Both models have a separate diagnostic NPN
(sinking) output rated 30 mA at 30 VDC.
S Rugged high impact housing is constructed of #380.0 cast aluminum,
anodized and epoxy coated for maximum corrosion resistance.
S Entire control is rated for NEMA 3, 4, 6P, 12 and 13, IP67 (IEC 529).
Installation
a. Lens Location
For increased flexibility the lens of the 42CRC is interchangeable with the
lens cap. Determine which lens location is best for your particular application, taking into consideration the accessibility to the control adjustments
and the visibility of the indication lights. When the lens location has been
determined, make sure to tighten the lens and cap to effectively maintain a
watertight rating.
b. Mounting
The control must be mounted on a firm stable surface or support. A mounting which is subject to excessive vibration or shifting may cause unreliable
operation.
This control is designed to detect a mark at a fixed distance from the lens.
Mount the control .5 inches (13 mm) from the web to the center of the face
of the lens, with the light spot centered on the mark. Web flutter must be
held to a minimum to maintain the sensing distance within the +/-- .08 (2
mm) depth of field. To ensure reliable operation, mount the control where
the web material travels smoothly over a plate or roller with little flutter
and where there are no web creases or wrinkles. See Page 3, Figure 1.
42CRC Mounting
42CRC Color Registration Control
42CRC
WEB MATERIAL
MOUNT THE 42CRC OVER A PLATE OR ROLL TO
PREVENT FALSE SIGNALS DUE TO WEB FLUTTER
FIGURE 1
3
Installation
(Continued)
Alignment
c. Wiring
For proper wiring the 42CRC requires a Photoswitch Cable Assembly
#60-2292 ordered separately. The control operates on 10-30 VDC @ 70
mA max. See pages 11 and 12 for complete specifications. All external
wiring should conform to the National Electric Codes and applicable
local Codes. See wiring diagrams beginning on page 15 for external
connections.
The 42CRC is designed to perform reliably on many different types of web
material. However, once the device is mounted and wired, it should be
aligned to the particular web material for optimum performance and
reliability.
Most marks can be detected by using the following mounting and alignment methods. Difficult mark colors and some foil material may require
the use of the Test Points on the control to determine the best position for
maximum mark to background contrast (see Page 9, d., Contrast Check).
a. Opaque Reflective Web Material
For sensing light or dark registration marks on opaque reflective surfaces,
mount the control .5 (13 mm) above the surface of the material. If the surface is shiny or reflective, angle the control about 10 to 15 degrees to the
perpendicular (75 to 80 from the control to the web surface). See Figure
2, Page 4.
b. Opaque Non-Reflective Web Material
For sensing light or dark registration marks on material with non-reflective
surfaces, mount the control .5 (13 mm) from the surface and perpendicular (90) to the web. See Figure 3, Page 4.
4
42CRC Color Registration Control
Alignment
c. Transparent Web Material With Dark Opaque Mark
(Continued)
For this type of material, mount the control .5 (13 mm) above the web
surface and at a 10 to 15 degree angle to the perpendicular (75 to 80 from
the control to the web surface). A light colored plate or roller must be
mounted directly behind the transparent web material.
The control will see through the transparent web, sense the light colored
background providing the required contrast to the dark opaque registration
mark. See Figure 4.
42CRC Alignment
OPAQUE REFLECTIVE WEB MATERIAL
WITH LIGHT OR DARK REGISTRATION MARKS
42CRC
SCANNING DISTANCE
.5 (13mm)
75 TO 80
OPAQUE NON-REFLECTIVE WEB MATERIAL
WITH LIGHT OR DARK REGISTRATION MARKS
42CRC
SCANNING
DISTANCE
90
.5 (13mm)
WEB MATERIAL
PLATE
MOUNT THE 42CRC AT A 10 TO 15 DEGREE ANGLE
FOR REFLECTIVE (SHINY) WEB SURFACES.
FIGURE 2 FIGURE 3
TRANSPARENT WEB MATERIAL WITH DARK
OPAQUE REGISTRATION MARKS
75 TO 80
PLATE
MOUNT THE 42CRC AT A 10 TO 15 DEGREE ANGLE.
MOUNT A PLATE MADE OF A LIGHT COLORED MATERIAL
BEHIND THE TRANSPARENT WEB MATERIAL.
WEB MATERIAL
PLATE
MOUNT THE 42CRC PERPENDICULAR TO THE WEB
FOR NON-REFLECTIVE (MATTE) WEB SURFACES
42CRC
SCANNING DISTANCE
.5 (13mm)
TRANSPARENT
WEB MATERIAL
FIGURE 4
42CRC Color Registration Control
5
Operating Modes
After the control has been installed and aligned, it must be set for the
particular operation. An important feature of the control is that it gives the
user complete flexibility to select any combination of the four major
operating modes listed below via a convenient external function selector
switch. See Figures 5, 6, and 7.
a. Latch Operation
This function allows the user to latch the switched output “ON” for an indefinite period when a mark is detected. The output is reset by applying a
positive 4 to 30 VDC to the “white” GATE/RESET input lead or by simply
switching this lead to the B+ supply. Electromechanical or solid state contacts can be used to reset the control. This function enables the output duration to be extended, and the output reset later in the machine cycle. The
“Latch” switch positions are “A” through “D”.
b. Non-Latch
In the non-latch mode, detection of a mark turns the switched output “ON”
for an adjustable dwell time of up to 250 milliseconds. After the dwell
time, the output will automatically reset. This mode is similar to an adjustable one-shot. Non-latch positions are “E through H”.
c. Light and Dark Mark Sensing
The 42CRC can be set to energize on the leading edge of light marks on a
dark background or the leading edge of dark marks on a light background.
The alphabetic positions on the function switch have letters with white
backgrounds and letters with black backgrounds. Select white background
positions for light mark sensing and black background positions for dark
mark sensing.
d. Automatic Operation
“Automatic” mode provides stable, adjustment-free sensing for most applications. The 42CRC automatically adjusts the sensitivity, compensating
for variations in background colors and lens contamination. It also provides
additional gain for the low contrast marks on dark backgrounds and scanning of glossy surfaces at an angle.
In this position the orange LED marked “AUTO” is “ON” and the manual
sensitivity adjustment is NOT functional. Switch positions for this mode
are A,
A
,C,C,E,E,G,G.
e. Manual Operation
This operating mode extends the control’s sensing capability for very low
contrast marks (e.g., pastel colors) on light backgrounds. Signal processing
in the 42CRC continually corrects for variations in background signal
level. The result is a mark detection system that has a more stable threshold
6
42CRC Color Registration Control
Operating Mode
(Continued)
level, and is easier to set up in the manual operation mode. The control
must be set in the manual mode when the “test points” are used to check
for sufficient sensing contrast (see “Contrast Check” on page 9.) In this
position the orange LED marked “AUTO” will be “OFF” and the manual
sensitivity adjustment is functional. Switch positions for this mode are B,
B
,D,D,F,F,H,H.
f. Red or Green Light Sources
The 42CRC Control has both a red and a green LED light source. The
function switch permits selection of one or the other LED. The LED selection guide, Figure 8 on page 9, lists which LED to use with some basic
mark and background color combinations.
To select the proper light source for colors not listed in Figure 8, make a
Contrast Check as described on page 13. Test the mark/background with
each LED and select the one that provides the maximum mark to background voltage change.
The red LED corresponds with switch positions A,
F
. The Green LED corresponds with switch positions C,C,D,D,G,
G
,andH,H.
A
,B,B,E,E,andF,
AUTOMATIC/MANUAL
INDICATOR
ORANGE LED
“ON” IN AUTOMATIC
MODE
MARGIN INDICATOR
GREEN LED
“ON” WHEN OPERATING
MARGIN IS AT
LEAST 2 TO 1
OUTPUT INDICATOR
RED LED
“ON” WHEN THE CONTROL
OUTPUT IS “ON”
AUTO
MARGIN
SIGNAL
TEST POINTS
INTERCHANGE
LENS AND CAP
TO CHANGE
SENSING DIRECTION
TEST POINTS
TO CHECK
MARK CONTRAST
QUICK-DISCONNECT
Cable Assembly
SENSITIVITY
ADJUSTMENT
(MANUAL MODE)
5
4
3
SENS
PHOTOSWITCH
COLOR
REGISTRATION
CONTROL
42CRC--4000
SUPPLY
4D30vDC 70MA MAX
OUTPUT
100MA30VDC MAX
N.O.NP N51NK
20MA30VDC MAX
ALARM
SCANNING
WHITE-GATE (-) / RESET (+)
ORANGE-DIAG. ALARM
BLACK-NEGATIVE
RED-POSITIVE
BLUE-OUT PUT
OUTPUT DWELL TIME
ADJUSTMENT
(NON-LATCH MODE)
MODE
7
8
6
9
0
2
1
2
A
A
1
H
3
B
H
0
4
B
G
C
G
F
F
E
E
D
D
C
9
DWELL
5
6
7
8
FUNCTION SELECTOR SWITCH
FIGURE 5
42CRC Color Registration Control
Function Selector Switch Operating Modes
7
NON-LATCHED OUTPUT
DARK MARK
MANUAL SENSITIVITY
GREEN LED
NON-LATCHED OUTPUT
LIGHT MARK
MANUAL SENSITIVITY
GREEN LED
NON-LATCHED OUTPUT
DARK MARK
AUTOMATIC SENSITIVITY
GREEN LED
NON-LATCHED OUTPUT
LIGHT MARK
AUTOMATIC SENSITIVITY
GREEN LED
NON-LATCHED OUTPUT
LIGHT MARK
MANUAL SENSITIVITY
RED LED
NON-LATCHED OUTPUT
LIGHT MARK
MANUAL SENSITIVITY
RED LED
NON-LATCHED OUTPUT
DARK MARK
AUTOMATIC SENSITIVITY
RED LED
LATCHED OUTPUT
LIGHT MARK
AUTOMATIC SENSITIVITY
RED LED
A
H
H
G
G
F
F
E
E
NON-LATCHED OUTPUT
LIGHT MARK
AUTOMATIC SENSITIVITY
RED LED
A
D
B
D
LATCHED OUTPUT
DARK MARK
AUTOMATIC SENSITIVITY
RED LED
B
C
C
LATCHED OUTPUT
DARK MARK
MANUAL SENSITIVITY
GREEN LED
LATCHED OUTPUT
LIGHT MARK
MANUAL SENSITIVITY
RED LED
LATCHED OUTPUT
DARK MARK
MANUAL SENSITIVITY
RED LED
LATCHED OUTPUT
LIGHT MARK
AUTOMATIC SENSITIVITY
GREEN LED
LATCHED OUTPUT
DARK MARK
AUTOMATIC SENSITIVITY
GREEN LED
LATCHED OUTPUT
LIGHT MARK
MANUAL SENSITIVITY
GREEN LED
NOTE: ALL WHITE LETTERS ON
BLACK BACKGROUNDS INDICATE THE
DARK ENERGIZE (MARK) POSITION.
ALL BLACK LETTERS ON WHITE
BACKGROUNDS INDICATE THE LIGHT
ENERGIZE (MARK) POSITION.
Additional Features
FIGURE 6
a. Output Dwell Time Control
The Dwell Control (Figure 6) extends the “ON” time of the control output
to a definable time limit. Typical applications would be controlling an operation that requires a well-defined time period (e.g., a pause for a product
filling, cutting, or sealing operation). The output dwell time is linearly adjustable up to 250 milliseconds. The longer “In” time of either the mark
presence or dwell control setting defines the “On” duration of the
control output.
b. Gated Operation
Gating or “blinding” the control is possible by simply switching the white
Gate/Reset lead to ground. It is desirable that the scanning area is free of
any printing except the registration marks. If other markings are in the scan
area, the control will detect them as registration marks.
8
42CRC Color Registration Control
Additional Features
(Continued)
To avoid detecting the unwanted marks, the control can be disabled
“gated” during the times the unwanted marks appear (see Figure 9). The
control can be “gated” by using electromechanical or solid state contacts
synchronized with the machine cycle.
c. Diagnostic Alarm Output
This feature provides for advanced remote (via CRT or control panel alarm
indication) warning of gradual loss of signal strength due to misalignment,
dust or drift in mark contrast prior to loss of a control output signal,
avoiding unexpected process disruption.
The diagnostic alarm is a normally closed NPN output. This output goes to
the open (indicating) state when the signal margin drops below 1.5.X for
seven consecutive marks (this is to avoid a false alarm) of any period or
duration. The diagnostic output also goes to the indicating state when the
cable is severed or disconnected or when the power supply to the
control fails.
The first occurrence of a signal margin 1.7X, indicative of correction of a
fault condition resets the diagnostic alarm. Since the diagnostic alarm
feature is not time-based, its operation is not affected by operations
employing indefinite pauses.
Function Selector Switch
Operating Modes
PHOTOSWITCH
COLOR
REGISTRATION
CONTROL
42CRC-4000
OUT
SPOT MODE MARK
SWITCH
POSITION
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
RED
LATCH
NON-LA.
GREEN
AUTO
MANUAL
LIGHT
55-5080A
DARK
Two function switch selection charts are provided with
each registration control, one is attached to the control, the
other chart with adhesive backing can be mounted on the
machine for easy reference.
The selection chart makes it easy to select the proper operation mode on the function switch shown in Figure 6.
Example: The operating mode required is as follows:
1. Output — Non-Latch
2. Spot (LED) Color-Green
3. Operating Mode — Automatic
4. Mark Color — Dark
Select a switch position which has a white dot in each of
the above columns.
The correct switch position for this application is
G
.
FIGURE 7
42CRC Color Registration Control
9
Additional Features
(Continued)
Led Light Source
Selection
d. Contrast Check
Test Points are provided on the back cover of the control (see Figure 5,
Page 6) to determine if sufficient contrast exists between the mark and the
background for reliable operation. The test point contacts are made of nickel plated stainless steel and can be immersed in water or short circuited
without affecting the operation of the control.
To check contrast, set the control in the manual mode. Set the web stationary with the light spot of the control on the background. Using a DC voltmeter (100K ohm/volt), connect the test probes to the test points. Note the
reading and repeat the measurement with the light spot centered on the
mark. If the difference between the two readings is in excess of 300 mV,
there is sufficient contrast for reliable operation.
Check the mark/background with both the green and red LEDs. Use the
LED that provides the maximum voltage difference. By making this contrast check, you can also determine the correct mounting angle (Figures 2,
3, and 4) by adjusting the scanning angle to obtain the maximum voltage
difference.
BACK-
GROUND
COLOR
WHITE
BLUE
GREEN RED
YELLOW
ORANGE GREEN
RED
WHITE BLUE GREEN YELLOW ORANGE RED BLACK
RED
OR
GREEN
RED
OR
GREEN
GREEN
REGISTRATION MARK COLOR
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED RED GREEN GREEN RED
RED
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
GREEN GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
OR
GREEN
RED
RED GREEN
GREEN GREEN
GREEN RED
GREEN
GREEN
RED
OR
RED
OR
BLACK
RED
OR
GREEN
RED
OR
GREEN
GREEN GREEN RED RED
FIGURE 8
10
42CRC Color Registration Control
Operation
After the control has been properly installed and the chosen operating
mode has been selected, set the dwell and the sensitivity controls to the full
counter-clockwise position. Apply power to the control and set the web in
motion. THE WEB MUST BE MOVING AT LEAST 2 INCHES (51 mm)
PER SECOND FOR PROPER CONTROL FUNCTION.
Automatic, Non-Latch
In this setting no sensitivity adjustment is required and the sensitivity
control is inoperative. Set the dwell control to the desired output dwell by
rotating the adjustment clockwise toincreasethetimetoamaximumof
250 milliseconds.
Automatic, Latch
No sensitivity or dwell time adjustments are required and both controls are
inoperative.
Manual, Non-Latch
Rotate the sensitivity control clockwise until the “Green Margin Light”
illuminates with the presence of a moving mark. This setting provides the
correct signal for reliable operation. If output dwell time is required, rotate
the dwell control clockwise to the appropriate duration.
Manual, Latch
Gating
WEB
MATERIAL
42CRC-4000
NPN OUTPUT
NO-GATING
42CRC-4001
PNP OUTPUT
NO-GATING
GATING
SIGNAL
42CRC-4001
NPN OUTPUT
GATED
42CRC-4001
PNP OUTPUT
GATED
Set the sensitivity control as described above. The dwell time is
inoperative.
LIGHT MARK
XY XY XY
DARK MARK
FIGURE 9
42CRC Color Registration Control
11
Maintenance
Specifications
Clean the lens surface periodically. With a non-abrasive cleaning solution
(mild soap) and a soft cloth. Do not use strong chemicals on the plastic
lens.
12
42CRC Color Registration Control
Voltage Supply: 10V to 30VDC.................................
Current Consumption 70mA Max................................
Output: Model 4000 Open Collector..............................
NPN (Current Sink)
Model 4001 Open Collector..............................
PNP (Current Source)
Output Rated Load Current (On-State) 100mA.....................
Output Rated Load Voltage (Off-State) 30VDC.....................
Output Short Circuit Protection Continuous........................
Response Time at Maximum Contrast
(Black & White) 250 Microseconds............................
Minimum Web Velocity 2 Inches per sec...........................
(51mm per second)
Maximum Output Dwell 250 Milliseconds min.....................
Minimum Output Dwell
(Overridden by Signal Duration) 250 Microseconds...............
Transmitter LED’s
(Selectable Red or Green) Visible Red, 630 nm...................
Visible Green, 570 nm
Minimum Useable Mark to Background Voltage
Change (Measured at Test Points in Manual Mode)
Manual Mode 250 Millivolts D.C..............................
Automatic Mode 500 Millivolts D.C............................
Scanning Distance 0.5 (13mm).................................
Depth of Field +/-- .08 (2mm).................................
Min. Size of Mark
at Scanning Distance 0.08 X.10 (2mm X 2.5mm)................
False Pulse Suppression Yes....................................
Reverse Polarity Protection Yes.................................
External Gating Mode Yes.....................................
Latching Output Mode with External Reset Yes....................
Diagnostic Alarm Following seven successive marks............
below margin of 1.5 X, or loss of power.
Diagnostic Alarm Output N.C. Open collector NPN output,......
30mA max., 30VDC max.
Operating Environment Housing made of #380.0 cast aluminum.......
Anodized and epoxy coated for
corrosion resistance.Rated forNEMA 3,
4, 6P, 12, and 13. IP67 (IEC 529)
Test Points for Contrast Check Yes..............................
42CRC Color Registration Control
13
Specifications
(Continued)
Dimensions 3.80 L X 2.95 H X 1.31 D........................
(97mmLX75mmHX33mmD)
Weight 12 oz (350 g).........................................
Storage Temperature --13F(--25C) to 167F(75C)................
Operating Ambient Temp. Range 32F(0C) to 158F(70C).........
Max Relative Humidity 95%...................................
Cable Assembly #60-2292
(Order Separately) 10 Feet (3m) 5 conductor with shield,........
#22 AWG (26 X 36) Stranded. Flexible
mount PVC jacket 260 nominal O.D.
rated UL 2661 — 150C 300volts. 5 pin
(female) watertight connector.
Agency Approvals UL listed, CSA certified.......................
14
2.357
(59.87)
42CRC Color Registration Control
Outline Dimensions (mm between brackets)
2.500
(63.50)
(10.64)
PHOTOSWITCH
COLOR
REGISTRATION
CONTROL
42CRC--4000
SUPPLY
4D30vDC 70MA MAX
OUTPUT
100MA30VDC MAX
N.O. NPN51NK
20MA30VDC MAX
ALARM
SCANNING
WHITE-GATE (-) / RESET (+)
ORANGE-DIAG. ALARM
BLACK-NEGATIVE
RED-POSITIVE
BLUE-O UTPUT
1.10
(27.94)
1.10
(27.94)
.415
(10.54)
.830
(21.08)
1.312
(33.32)
.656
(16.62)
1.437
(36.50)
3.375
(85.73)
Using Optional
Lens Position
Focal
Points
(Scanning
Distance)
.432
(10.97)
.419
.470
(11.94)
1.875
(47.63)
.250 (6.35) Max. thread depth
.375
(9.53)
M5 X 0.8 Thread
2places
1.930
(49.02)
#60-2292
Cable Assembly
Internal Schematic
Photo Detector Board
Optics
M5 X 0.8 Thread
.250 (6.35) Max. thread depth
4places
FIGURE 10
Microcircuit
Pulse
Amp
Manual
Sensitivity
Adjustment
Integrator
and Analog
Amplifier
6
5
4
3
2
SENS
(75.06)
7
8
1
2.955
MODE
H
H
9
G
G
F
F
0
E
(71.12)
A
A
B
B
C
D
D
E
Margin
Comp.
2.800
1
0
C
9
DWELL
2
3
4
5
6
7
8
(+)
Margin
Indicator
Green LED
Signal
Comp.
Overload
Protection
Indicator
Red LED
Output
NPN or
PNP
LED’S
Red Green
Pulse
Generator
Operating
Mode Logic
FIGURE 11
Auto Mode
Indicator
Orange
LED
Dwell
Time
Diagnostic
Alarm
Gate/Reset
(--)
Diagnostic
Output
NPN
Diagnostic Alarm
Minimum Resistor
Value Selection
(OHMS)
MINIMUM
RESISTANCE
1000
833
667
500
333
42CRC Color Registration Control
15
(USE 1/2 WATT RESISTOR)
Color Coding
#60-2292 Cable Assembly
30252015100
VOLTAGE
(D.C.)
FIGURE 12
WHITE-GATE (--) / RESET (+)
ORANGE-DIAG. ALARM
BLACK-NEGATIVE (--)
RED-POSITIVE (+)
BLUE-OUTPUT
FIGURE 13
16
42CRC Color Registration Control
Wiring Diagrams
NPN OUTPUT 42CRC -- 4000
Latched Output -- Function Switch Positions
“A” Through “D” with or without External Gating
External Connections
42CRC-4000
Control
Output
(NPN)
Sink
Diagnostic
Output
(NPN)
Sink
Connector
Blue--NPN Output
Orange-NPN Diagnostic Alarm
White-Gate (--)/Reset (+)
Black (--)
*WARNING DO NOT CLOSE THE RESET AND
GATING SWITCHES SI MULTANEOUSLY
Cable Assembly #60-2292
Red (+)
Reset* Switch
(close to unlatch)
Bare-Shield
FIGURE 14
Load
(+) Supply
10-30VDC
Resistor by customer (if remote
diagnostic indicator is used.)
SeeFigure12
for resistor
selection.
30mA max,
remote diagnostic
indicator by
customer (if used)
Gating Switch
close to inhibit
(if used)
NPN will sink
0.3 mA
(--) Supply
External Connections
42CRC-4000
Control
Output
(NPN)
Sink
Diagnostic
Output
(NPN)
Sink
Connector
NPN OUTPUT 42CRC -- 4000
Non-Latched Output -- Function Switch Positions
“E” Through “H” with or without External Gating
Cable Assembly #60-2292
Red (+)
Blue-NPN Output
Orange-NPN Diagnostic Alarm
White-Gate (--)/Reset (+)
Black (--)
Bare-Shield
Load
(+) Supply
10-30VDC
Resistor by customer (if remote
diagnostic indicator is used.)
SeeFigure12
for resistor
selection.
30mA max,
remote diagnostic
indicator by
customer (if used)
Gating Switch
(--) Supply
Wiring Diagrams
External Connections
42CRC-4001
Control
Output
(PNP)
Source
Diagnostic
Output
(NPN)
Sink
42CRC Color Registration Control
(Continued)
Connector
PNP OUTPUT 42CRC -- 4001
Latched Output -- Function Switch Positions
“A” Through “D” with or without External Gating
Cable Assembly #60-2292
Red (+)
Blue-PNP Output
Orange-NPN Diagnostic Output
White-Gate (--)/Reset (+)
Black (--)
Bare-Shield
Load
Reset* Switch
(close to unlatch)
(+) Supply
10-30VDC
Resistor by customer (if remote
diagnostic indicator is used.)
SeeFigure12
for resistor
selection.
30mA max,
remote diagnostic
indicator by
customer (if used)
17
(--) Supply
External Connections
42CRC-4001
Control
Output
(PNP)
Source
Diagnostic
Output
(NPN)
Sink
*WARNING DO NOT CLOSE THE RESET AND
GATING SWITCHES SI MULTANEOUSLY
FIGURE 16
PNP OUTPUT 42CRC -- 4001
Non-Latched Output -- Function Switch Positions
“E” Through “H” with or without External Gating
Connector
Blue-PNP Output
Orange-NPN Diagnostic Output
White-Gate (--)/Reset (+)
Black (--)
Cable Assembly #60-2292
Red (+)
Bare-Shield
*Gating Switch
close to inhibit
(if used)
NPN will sink
0.3mA
Load
(+) Supply
10-30VDC
Resistor by customer (if remote
diagnostic indicator is used.)
SeeFigure12
for resistor
selection.
30mA max,
remote diagnostic
indicator by
customer (if used)
(--) Supply
Gating Switch
18
42CRC Color Registration Control
Performance Curves
Relative Sensitivity Vs Web Speed
1.1
1
.6
.4
Relative Sensitivity
.2
2100070010070107
(Metric Conversion 1 = 25.4mm)
(Automatic Mode)
Speed (In/Sec.)
FIGURE 18
Relative Sensitivity Vs Web Speed
(Manual Mode)
1.1
1
.8
.6
.4
Relative Sensitivity
.2
.5 1000700100701051.7
Speed (In/Sec.)
(Metric Conversion 1 = 25.4mm)
FIGURE 19
GuardShield™ Safety Light Curtain User Manual
R
40
Original instructions
GuardShield™ Safety Light Curtain User Manual
R
40
Original instructions
GuardShield™ Safety Light Curtain User Manual
R
40
Original instructions
PHOTOSWITCH is a registered trademark of Rockwell Automation.
www.rockwellautomation.com
Power, Control and Information Solutions Headquarters
Americas: Rockwell Automation, 1201 South Second Street, Milwaukee, WI 53204-2496 USA, Tel: (1) 414.382.2000, Fax: (1) 414.382.4444
Europe/Middle East/Africa: Rockwell Automation NV, Pegasus Park, De Kleetlaan 12a, 1831 Diegem, Belgium, Tel: (32) 2 663 0600, Fax (32) 2 663 0640
Asia Pacific: Rockwell Automation, Level 14, Core F, Cyberport 3, 100 Cyberport Road, Hong Kong, Tel: )852) 2887 4788, Fax: (852) 2508 1846
Publication PA--8853 February 1994
Supersedes Publication PA--8853 February 1989 Copyright 1994 Rockwell Automation. Printed in USA
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