en Description B Color line sensor FE 5002

Description B 

Color line sensor FE 5002 

1. General instructions 2 

2. Function 2 

3. Mounting and installation 6 

4. Commissioning 9 

5. Operation 10 

6. Settings and error messages 14 

7. Maintenance 24 

8. Spare parts 25 

9. Wiring diagram 26 

10. Technical data 26 

BEA--250260-EN-04 

en


1. General instructions 

1.1 Description 

1.2 Safety instructions 

1.3 Variants 

2. Function 

2.1 Intended usage 

2.2 Design 

B Page 2 

Explanation of symbols 

= jobs to be performed 

= important information and instructions 

Please keep this description in a safe place, accessible to personnel 

at all times. 

The description is part of the package supplied and should be read 

carefully prior to assembly, operation and maintenance work. 

Never touch the edges of running webs. 

The color line sensor is available in two different versions. 

FE 5002 with front lighting 

FE 5002 with back lighting 

In both cases the sensor is the same, only with back lighting the light 

transmitter is mounted in its own housing and both transmitters in the 

color line sensor are switched off via parameters. 

In areas in which differences exist between the two sensor versions, 

both versions will be described. 

The FE 5002 color line sensor may only be used for the contact-free 

scanning of lines or contrast transitions (color contrast or web edge; 

see also figure). The FE 5002 color line sensor is used with web 

guiders. 

Only use the FE 5002 color line sensor 

- in perfect technical working order, 

- for use as intended. 

The FE 5002 color line sensor mainly comprises a sensor optical 

unit, color CCD array element with a resolution of 3 x 2700 pixels 

(resolution - red, green, blue) and LEDs as light transmitters whereby 

a distinction is made between front lighting, diffuse lighting and back 

lighting as light transmitter. Operation is via membrane keyboard.

Guiding criteria 

Line Line 

Web edge Color contrast 

edge 

2.3 Operating principle 

Color line sensor operating principle 

Sensor optical 

unit 

Transmitter 

Diffuse light 

Membrane 

keyboard 


Connecting plug 

(accessory) 

Separate light transmitter 

(optional) 

Light diodes transmit light onto the web. The reflected light illuminates 

the color CCD array element via the optical unit. In the back 

lighting process 

Illuminated by the light received, the CCD elements in the color line 

sensor thus accept a higher signal level. The guiding criterion (line or 

contrasting edge) is evaluated by the microprocessor and output as 

an actual position value on the CAN bus. This output value may e.g. 

be used to control digital web guiding. At the same time, the actual 

position of the guiding criterion in the measuring range is display on 

the LED light strip. 

If the LED next to the LED light strip lights up green, the color line 

sensor is ready for operation. 

Diffuse 

light 

Web 

Back lighting 

Floodlight 

Transmitter 

Flood lighting 

LED light strip 

LED-readiness for operation 

B Page 3


2.4 Color line sensor 

measuring range 

B Page 4 

orange light spots 

red light spot 

Light spots Scanning point 

2.5 General implementaton 

instructions 

Support roller/ 

guide rod 

Scanning following a support roller/ 

guide rod 

The color line sensor measuring range amounts to max. ±10 mm and 

is resolved in 3 x 2700 pixels (red, green, blue). In the case of lines, 

the range in which the line may be displaced is reduced by the line 

width. 

The range in which the line may be displaced is determined as follows: 

Range = ± (10 mm - ) 

Line width 

2 

The color line sensor outputs the actual position value for this range 

which corresponds to the position of the guiding criterion. The guiding 

criterion may be displaced within 75 % of the available range. 

The guiding criterion should always be located in the center of the 

sensor optical unit. The center of the sensor optical unit is marked 

by an orange light spot on the web. The two outer orange light spots 

mark the outer edges of the measuring range. The red dot indicates 

the position in the measuring range of the guiding criterion currently 

being used. The light spots do not indicate the sensor scanning point 

which is approx. 10 mm away from the light spots! 

The sensor optical unit scanning point is located 2.5 mm outside 

the sensor center. 

In the case of a continuous guiding criterion these 10 mm are of no 

significance. With interruptions in criteria it must be assured that 

no interruption of the guiding criterion occurs at the scanning point. 

When teaching-in a guiding criterion, in particular, this may cause 

problems. 

It is important to assure a constant distance between color line sensor 

and web. Scanning should always be performed in a sector in 

which no web height fluctuations occur. The sector immediately following 

a support roller/guide rod is recommended. 

The color line sensor recognizes all line/contrasting edges in the 

measuring range. One of the detected lines or contrasting edges 

must be selected for guiding. 

The color contrast between lines or color contrasts to the background 

should always be good. Best is e.g. a black line (edge) on a white 

web or a white line on a black web. An extremely poor contrast would 

be a yellow line (edge) on an orange web.

2.6 Operating modes 

t i 

t p 

2.6.1 Line scanning 

 

Limited search range 

t i = Pulse time 

t p = Pulse interval 

Measuring 

range 

2.6.2 Contrasting edge scan 

 

Limited search range 


With color line sensors, in principle the following operating modes 

may be distinguished: 

- Line scanning, light line on a dark background 

- Line scanning, dark line on a light background 

- Contrasting edge scanning. 

The guiding criterion (line or contrasting edge) may be continuous 

or broken, light or dark. The interruption ratio t i /t p should be greater 

than 1! 

The line width in the case of a black, sharply defined line on a white 

background (or vice-versa) should be between approx. 0.2 mm and 

max. 8 mm. The optimum line width is 2 - 3 mm. Reliable operation 

is assured when the background on one of the two sides of the line is 

wider than 1 mm. 

The finer the line, the poorer the image definition will be. In the case 

of lines wider than 8 mm, the "Contrasting edge" guiding criterion 

should be selected as the wider line can no longer be displaced. 

The following typical line scans are possible: 

continuous line with uniform background 

broken line with uniform background 

continuous line with disturbances in background 

broken line with disturbances in background 

Disturbances in the background may be print marks, motifs, second 

line with the same properties or otherwise. In this case, the measuring 

range may be limited via parameter ".2.9. > search range mode". 

The size of the limited search range is the equivalent of the line 

width + 2 mm. The red dot indicates the center of the search range. 

The width of a contrasting stripe must be at least 1 mm. 

The following typical contrasting edge scans are possible: 

Web edge scanning 

Contrasting edge with uniform background 

Broken edge with uniform background 

Contrasting edge with disturbances in background 

Broken contrasting edge with disturbances in background 

Disturbances in the background may be print marks, motifs, second 

line with the same properties or otherwise. In this case, the measuring 

range may be limited via parameter ".2.9. > search range mode". 

The size of the limited search range is 2 mm. 

B Page 5


2.7 Surface and transparency 

Diffuse light 

2.8 Background panel 

2.9 Sensor accessories 

B Page 6 

Flood light 

Reflection of the light beams with reflective 

surfaces 

3. Mounting and 

installation 

This section is not relevant to color line sensors operating on a 

back lighting principle. 

Apart from the color contrast, the surface also contributes to the sensitivity 

of the color line sensor. Highly reflective surfaces (e.g. silver 

film) reflect very much light, matt or rough surfaces (e.g. paper) reflect 

little light. 

In the case of highly reflective surfaces the light beams are reflected 

away by the structural arrangement of the flood light. To the color 

line sensor, a silver film appears as a black film and through reflection 

further color information may also be lost. For this reason, a light 

guiding criterion, e.g. a white line, is best suited to highly reflective 

surfaces. 

If, in such cases, no light guiding criterion is available, the color line 

sensor automatically uses diffuse light whereby the reflected light is 

evaluated (see figure on left). A silver film acts as a mirror. Due to 

this mirror effect, the sensor sees the pale diffuse light. With it, highly 

reflective surfaces appear light. 

This section is not relevant for color line sensors operating on a 

back lighting principle. 

If scanning is always within a non-transparent web, no panel is necessary. 

On non-transparent webs on which the edge or close to it is to be 

scanned, a matt black background panel should be used. 

With dark lines (black or shiny silver) on transparent webs a light 

background panel is necessary (the transparent section appears 

light). 

Color line sensor accessories include the connection cable and the 

following sensor holders: 

Type Securing Mounting 

VA 6007 20 x 20 mm rigid 

VA 6027 20 x 20 mm flexible 

VA 6107 40 x 40 mm rigid 

VA 6127 40 x 40 mm flexible 

Please observe the locally applicable and professional safety 

and accident prevention regulations. 

Section "3. Mounting and installation" may be omitted for color line 

sensors ready mounted mechanically on delivery with adjusting 

screws secured by screw locking varnish.

3.1 General mounting 

instructions 

Setting template 

Web 

Setting position 

Web Knurled 

screw 

Süpport roller 

same angle 

Web 

Markng in the setting 

template 


In observance of the following assembly instructions mount the 

color line sensor in the first third of the exit section of the web 

guider (see also actuating element description). 

In order to avoid height fluctuations scanning must always be performed 

immediately following a support roller/guide rod. Please 

ensure that the distance to the web in the side adjustment range 

of the color line sensor does not change. 

To assure correct function the color line sensor must be mounted at a 

distance of 24.6 mm and angle of 14° to the web. A red plastic setting 

template is located on the sensor for setting these dimensions. Setting 

is performed as follows: 

Unscrew the setting template from the color line sensor and insert 

in the setting position. 

Set the sensor to the required scanning position and tighten the 

knurled screw. 

Loosen the adjusting screws on the movable sensor fixture and 

position the sensor on the web so that the setting template rests 

flush with the web. In the case of the fixed sensor fixture the distance 

must be set via the correct positioning of the sensor fixture! 

If the web is scanned on a support roller the marking in the setting 

template must rest exactly on the roller. The inclination must be at 

approx. the same angle at both sides. 

On completion of setting work, screw the setting template securely 

to the color line sensor. 

Due to the arrangement of the diffuse light transmitter the sensor 

may only be inclined in the direction illustrated (observe front/rear 

view). If the sensor is inclined in the other direction during mounting, 

the diffuse light transmitter cannot function. For the back lighting 

process the sensor must also be inclined in this direction. The 

web must run at an angle of 90° to the color line sensor. 

Rear view Front view 

Web 

B Page 7


3.2 Mounting instructions for 

back lighting transmitters 

3.3 Installation 

Assembly 

drill holes 

Earth connection 

3.4 Sharpness setting 

B Page 8 

Mount back lighting transmitter as illustrated. 

In confined mounting spaces the transmitter may be rotated at an 

angle of 30° around the pivot. The amount of light received by the 

color line sensor will however be reduced a little as a result. 

The color line sensor differentiates between light and dark lines 

and contrasting edges. For this reason sensors used in the back 

lighting process must be directly aligned to the back lighting transmitter 

lamps as otherwise a sufficient amount of light cannot be 

assured. 

Please ensure that the insulation is not damaged and leads are 

properly secured and protected. Protect and run signal lines away 

from heavy-current carrying leads . 

The color line sensor housing with drill holes (see figure opposite) 

must be connected to the machine frame. Due to the metal connection, 

heat dissipation via the assembly connection may additionally 

occur. 

Run the electrical leads according to the attached wiring diagram 

and protect with a strain release device. 

Tighten the connection lead union nut. It assures a conductive 

connection between the color line sensor housing and the signal 

line shield. 

The sharpness setting must be performed for precision color 

line sensor operation! 

Connect web guider to the operating voltage. 

Pivot 

Position sensor on the web. The guiding criterion that is to be 

scanned must be located at the position of the middle orange light 

spot (set position). 

As guiding criterion for the sharpness setting we recommend an 

uniform black line on a white background, with a line width of 

1 mm. If such a guiding criterion is not available, a simple paper 

print-out may be used as a substitute. If using a paper print-out 

please ensure that the paper is clean (without creases and folds) 

and rests on the web at the correct distance.

Poor sharpness 

(few LEDs) 

LEDs 7+ 8 flash 

Good sharpness 

(Several LEDs) 

4. Commissioning 

4.1 CAN Address 

GRP = Group number 

DEV = Device number 

Device 3 

Standard 

device 

number 

Colour line 

sensor = 3 

Group 

e.g. 0 


Press the "Sensor" and "SETUP" keys simultaneously. The guiding 

criterion is taught. After approx. 1 second both keys may be 

released. 

Move the sensor by approx. 5 mm to the left or right. The red dot 

must remain on the guiding criterion. If the dot does not remain on 

the guiding criterion it must be re-taught. 

Press and hold down the "SETUP" key and additionally press the 

"GRP" key. Release both keys. 

LEDs 7 and 8 flash in alternation, the remaining LEDs indicate the 

sharpness. The more LEDs light up the better the sharpness. If 

only a few LEDs light up, by changing the distance between the 

color line sensor to the web, sharpness may be improved. 

Press the "SETUP" key once and the display will quit the sharpness 

setting. 

On compact systems planned by E+L (e.g. DR 24..) no settings 

are necessary on first-time commissioning. 

If the color line sensor is ordered individually and connected with further 

control components to form a functioning control loop, on commissioning 

the color line sensor for the first time, the CAN address 

must be checked. 

The sensor group number must be identical to that of the digital guider 

to which it belongs (see block diagram). 

Switch the guider to "center" mode. 

Press the "GRP" and "DEV" buttons on the color line sensor at 

the same time and hold them down. After approx. 6 seconds the 

group and device numbers will begin to flash on the display (LED 

light strip). After approx. a further 20 seconds the color line sensor 

will switch into set-up mode. The flashing becomes a permanent 

light and the group number may be changed via the "GRP" key 

and the device number via the "DEV" key. 

The following device number entries are possible: 

1 = right sensor (operation possible on sensor only) 

2 = left sensor (operation possible on sensor only) 

3 = color line sensor (standard) 

If the "GRP" and "DEV" keys are not pressed for longer than approx. 

20 seconds, the group and device numbers are stored and 

setup mode quit again. 

B Page 9


5. Operation 

5.1 Operating instructions 

B Page 10 

Operating modes 

The color line sensor may only be positioned when the machine 

is stationary! 

The operating sequence is the same for each guiding criterion. When 

addressing as a color line sensor (X.3) operation may be performed 

both from the sensor and command station DO 10.. / DO 200.. . 

When teaching the guiding criterion for safety reasons the web 

should not be moved. In the case of broken guiding criteria please 

ensure that during teaching no break in the guiding criterion occurs 

at the sensor scanning point. If this is not possible, the guiding 

criterion may be taught during the processing speed in observance 

of all the safety requirements. 

If a transparent web or guiding criterion is being scanned, a background 

panel/support roller must be used. The color (white/black) 

of the background panel/support roller may be established in the 

following table. 

The following table is also highly suitable for manual teaching to 

assure that the correct operating mode is selected. 

Panel/roller in background 

(no , white or black ) 

Guiding Background 

criterion support material 

light dark X X 

light reflective X X 

light transparent X X 

dark light X X 

dark reflective X X 

dark transparent X X 

reflective dark X X 

reflective light X X 

reflective transparent X X X X 

transparent dark X X 

transparent light X X 

transparent reflective X X X X 

Operating mode and panel selection for 

front lighting process 

Guiding criterion Background/support material 

Line not transparent transparent X 

Line transparent not transparent X 

Color not transparent transparent X 

Color transparent not transparent X 

Operating mode selection for back lighting 

process 

Line Contrasting edge

5.2 Teaching the guiding 

criterion 

5.2.1 Automatic teaching 

desired guiding criterion 

red dot two red dots 

+ 


The guiding criterion that is to scan the color line sensor must be 

taught. This taught guiding criterion remains stored until a new teaching 

process takes place. A guiding criterion may be stored for each 

of the three operating modes (light line, dark line, color contrast). The 

three following methods of detecting and storing the guiding criterion 

are available: 

5.2.1 Automatic teaching (standard) 

5.2.2 Manual teaching 

5.2.3 Combined teaching 

If the customer wishes manual or combined teaching the appropriate 

value must be selected in parameter ".2.0. >Teaching Mode" of the 

color line sensor. 

As a special application (e.g. drop stitch, water mark, perforated line) 

there is still in parameter ".2.0. >Teaching Mode" the value 3 (no 

teaching possible). With this setting no guiding criterion is taught or 

stored. The guiding criterion detected as being best by the sensor 

becomes the guiding criterion. If the sensor then detects a better 

one, it will change to it. 

The actuating element is always switched to "manual" mode 

when a guiding criterion is being taught. 

Connect the web guider to the operating voltage. 

Position the sensor on the web. The guiding criterion that is to be 

scanned must be located at the position of the middle orange light 

spot (set position). 

The color line sensor operates according to line priority. In the 

case of contrasting edges therefore it may be that lines are detected 

in the guiding criterion or background. If the sensor is positioned 

approx. 2 mm to the left or right next to the contrasting 

edge improved teaching of contrasting edges in assured. 

Press the "Sensor" and "SETUP" keys at the same time. The 

guiding criterion is taught. After approx. 1 second both keys may 

be released. Teaching is completed. If teaching is performed on 

moving webs for difficult guiding criteria (e.g. broken) both keys 

must be held down longer (e.g. 5 seconds). 

If the guiding criterion has been detected, the red dot is also located 

on the guiding criterion or two red dots enclose the guiding criterion. 

The red light spot follows the guiding criterion. The LED light strip indicates 

the current position of the guiding criterion. 

B Page 11


5.2.2 Manual teaching 

B Page 12 

+ 

Position the sensor on the web. The guiding criterion that is to be 

scanned must be in the scanning range (between the two outer 

orange light spots) of the color line sensor. 

Please pay particular attention to section "2.4 Color line sensor 

measuring range" distance between scanning point and light spots 

Establish the property of the guiding criterion (light line, dark line, 

color contrast) and the background/support material and determine 

the appropriate operating mode from the "Operating mode 

and panel selection" table. Select the required operating mode 

with the sensor key. The green LED arrow beside the selected 

guiding criterion lights up. 

Press the "SETUP" key and additionally the "Sensor" key. After 

approx. 1 second both keys may be released. The guiding criterion 

is taught while the keys are pressed. If teaching difficult guiding 

criteria (broken) on moving webs, both keys must be held down 

longer (e.g. 5 seconds). The green LED arrow next to the selected 

guiding criterion flashes. The red light dot indicates the best guiding 

criterion detected in the sensor scanning range. 

Select the required guiding criterion that is to be scanned by 

pressing the "GRP" or "DEV" key. The red dot indicates the appropriate 

guiding criterion. 

During selection the LEDs in the LED strip flash. The more LEDs 

flash the better the guiding criterion has been recognized. Depending 

on whether flood or diffuse lighting is being used for scanning, 

various numbers of LEDs may flash for the same guiding 

criterion. In any case, selection should always be on the basis of 

as many LEDs flashing as possible. 

In acknowledgement, press the sensor key once. The guiding criterion 

is stored, the green LED arrow goes on. The red light spot 

follows the guiding criterion. After acknowledgement the LED strip 

indicates the current position of the guiding criterion. 

Two line scanning modes are available (light line/dark line). If 

assignment as a light or dark line cannot clearly be determined, 

the teaching process should be performed with both operating 

modes. The operating mode that detects the guiding criterion better 

must then be selected to scan it.

5.2.3 Combined teaching 

5.3 Operation in conjunction 

with a web guider 

5.4 Manual lamp selection 

+ 

+ 


In the case of combined teaching, teaching may be both automatic 

and manual. Perform teaching required as described in section 5.2.1 

or 5.2.2. Please note with regard to the key sequence on teaching: 

If teaching is automatic, first the "Sensor" and then additionally the 

"SETUP" key must be pressed. 

If teaching is to be manual, it is exactly the reverse. First the 

"SETUP" key and then the "Sensor" key must be pressed. 

Switch the web guider to "Center" mode. 

Insert the web. 

Position the color line sensor. 

Position the color line sensor on the taught guiding criterion so 

that it is in the center of the sensor optical unit (middle orange 

spot). 

Select operating mode (light line, dark line, contrasting edge). 

Switch the web guider to "automatic" mode. 

If the color line sensor loses the guiding criterion, LEDs 0 and 8 in 

the LED strip will flash and the guider is inhibited. 

Set web offset / position actuating element. 

The "GRP/DEV" keys may be used to set a web offset in "automatic" 

mode. 

In "manual" mode the actuating element may be positioned. 

The "GRP" key effects an offset away from the sensor, the "DEV" 

towards the sensor. 

If a broken guiding criterion is taught while the web is moving a "stroboscopic 

effect" may be caused. During the front lighting phase the 

sensor only sees the line and during the diffuse light phase only the 

interruption. The sensor cannot therefore detect the guiding criterion. 

In the case of manual lamp selection immediately prior to teaching a 

light transmitter is selected that does not change for the duration of 

the teaching process. Manual lamp selection is performed as follows: 

Press the "Setup" key and then additionally press the "DEV" key 

repeatedly until the required light transmitter is selected. 

The teaching of the guiding criterion must then be started within 

10 seconds. If no guiding criterion is taught within this period the 

sensor will then reselect the stored (most recently taught) light 

transmitter. 

B Page 13


6. Settings and error 

messages 

6.1 Parameters 

No. Name Default Min Max Unit Description 

B Page 14 

In setup mode, setup parameters may be displayed and to some 

extent changed. To access the color line sensor setup mode a command 

station DO ...., a digital controller DC 55.. or an operating 

panel RT .... is required. 

The parameter numbers are listed in the No field of the table, in the 

Name field the abbreviations. The Default field indicates the standard 

settings, Min and Max are the respective permissible limit values. 

The unit is indicated in the Unit field. The Description explains 

the function of the parameter. A dot (•) after the parameter number 

indicates a display parameter the value of which cannot be changed. 

..0. edit device 3 1 3 hex Device number (see wiring diagram) 

..1. edit group 0 0 7 hex Group number (see wiring diagram) 

..2. reset settings 0 0 2 - Works settings: 

0 = no function 

1 = E+L basic settings 

2 = internal value specification (Default) 

..3. start service 0 0 199 - Field for starting a function: 

0 = no function 

1 = reset 

2 = store parameters 

..4. Color Line Sensor - - - - Software version 

..5. mounting 0 0 1 - reverse sensor signal 

norm/rev 0 = normal 

1 = reversed 

..6. • resolution abs. 2000 0 2700 - available sensor measuring range in pixels 

..7. • range +/- 10 0 10 mm available sensor measuring range in mm = 

max. sensor measuring range - width of guiding crit. 

(e.g. 10 mm - 1 mm = 9 mm; display 9) 

..8. • sensor value 0,00 -10,00 10,00 mm Actual position of the guiding criterion in mm 

..9. • > errorcode 0 0 299 - Error code: 

Units' places indicate exposure errors 

..0 = no error 

..2 = under-exposed 

..3 = over-exposed ( direct light on the optical unit) 

Tens' places indicate the operating status 

0. = guiding criterion found 

2. = no guiding criterion found 

Hundreds' places inidcate the temperature 

0.. = normal temperature 

2.. = too high temperature (> 80 °C) 

.1.0. monitoring - - - - Parameter title 

.1.1. • running time meter 0 0 65335 h Running time meter 

.1.2. • reset counter 0 0 32767 - Reset counter (for service personnel only) 

(increases by 1 resp. in event of a reset)


.1.3. • supply voltage 0 0 40,96 V Sensor operating voltage display 

.1.4. • temperature 0 -40 100 °C PCB temperature in °C 


.1.5. • sharpness 0 0 16 - Optical sharpness of the guiding criterion 

Note: a high value in this parameter is more important 

than a high value in parameter .1.6. 

.1.6. • percent of valid 0 0 100 % Guiding criterion detected to X per cent 

The frequency of how often the guiding criterion was 

detected is indicated in per cent. 

Note: 70 % for a broken guiding criterion is a good value. 

.1.7. • dsp scan status 0 0 5 - Status feedback from DSP(for service personnel only) 

.1.8. • dsp reason of lost 0 0 10 - Reason for lost guiding criterion 

0 = no guiding criterion in sensor scanning range 

1 = only one edge of a line detected 

2 = fluctuating signal, no guiding criterion may be clearly 

detected 

3 = Line tolerance exceeded 

4 = Brightness tolerance exceeded 

5 = Tolerance for standardised contrast exceeded 

6 = Colour tolerance red/green, one line or left of 

contrasting edge exceeded 

7 = Colour tolerance blue/gree, one line or left of 

contrasting edge exceeded 

8 = Colour tolerance red/green, right of contrasting 

edge exceeded 

9 = Colour tolerance blue/green, right of contrasting 

edge exceeded 

10 = Guiding criterion detected 

.1.9. working parameters - - - - Parameter title 

.2.0. > teaching mode 0 0 3 - Selection of teaching mode 

0 = automatic teaching 

1 = manual teaching 

2 = combined teaching (manual and automatic) 

3 = no teaching possible the best guiding criterion 

detected in the measuring range is adopted as the 

guiding criterion 

.2.1. energetic IIR-tau 0,22 0,05 2,00 mm IIR time constant 

Narrow lines are dampened. 

Note: this parameter is only active if value 3 

is selected in parameter .2.0.. 

.2.2. energetic mov 2,00 0,05 5,00 mm Evaluation width 

AV width Wide lines are dampened 

Note: This parameter is only active if value 3 is selected in 

parameter .2.0.. 

.2.3. line width minimum 0,12 0,12 7,00 mm Minimum line width during teaching 

Line thickness less than this value will not be accepted. 

.2.4. line width maximum 8,00 0,50 12,00 mm Maximum line width during teaching 

Line width greater than this value will not be accepted. 

.2.5. • line width actual - 0,00 8,00 mm Display of line width (during contrasting edge scanning 

display 0.00 is indicated) 

B Page 15



.2.6. • > dsp guiding mode 2 0 3 - Operating mode display 

0 = no operating mode (must not occur) 

1 = light line on dark background 

2 = dark line on light background 

3 = contrasting edge scanning 

.2.7. lock guiding mode 0 0 1 - Operating mode locking 

0 = no locking 

1 = operating mode locked 

Limitation: locking is only possible when addressing the 

color line sensor as an edge sensor (x.1 or. x.2). 

.2.8. reserve - - - - reserve 

.2.9. > search range 3 0 3 - Search range limitations 

mode 0 = no search range limitation 

1 = search range limitation always active 

2 = search range limitation only active in automatic 

mode. Search range is extended to total sensor 

measuring range if no guiding criterion is found in the 

defined time (parameter 30) during automatic mode. 

3 = Search range limitation active 

Search range is extended to total sensor measuring 

range if no guiding criterion is found in the defined 

time (parameter 30) during automatic mode. 

.3.0. full r. time 500 10 500 ms Time after loss of guiding criterion in which search range is 

(x5 ms) extended to total sensor measuring range 

.3.1. • calibration value 705 0 1350 - Sensor zero position calibration (for E+L service engineers 

only) 

.3.2. bright line tol. - - - - Parameter title 

.3.3. bl width tolerance 20 1 100 % Line width tolerance for light lines 

.3.4. bl bright tolerance 60 40 100 % Brightness tolerance for light lines 

.3.5. bl contrast tol 35 1 100 % Brightness standardised contrast (SC) tolerance for light 

lines 

.3.6. > bl dsp comp. 0 0 1 - Brightness edge evaluation 

mode 0 = edge evaluation ON 

1 = edge evaluation OFF 

.3.7. bl color tolerance 1,3 1,1 10 - Color tolerance for red/green and blue/green for light lines 


.3.9. dark line tol. - - - - Parameter title 

.4.0. dl width tolerance 20 1 100 % Line width tolerance for dark lines 

.4.1. dl bright tolerance 60 40 100 % Brightness tolerance for dark lines 

.4.2. dl contrast tol 35 1 100 % Brightness standardised contrast (SC) for dark lines 

.4.3. > dl dsp comp. 0 0 1 - Brightness edge evaluation 

mode 0 = edge evaluation ON 


.4.4. dl color 1,3 1,1 10 - Color tolerance for red/green and blue/green tolerance 

for dark lines 


B Page 16


.4.6. contrast tol. - - - - Parameter title 

.4.7. c bright tolerance 60 40 100 % Brightness tolerance for contrasting edges 


.4.8. c contrast tol 35 1 100 % Brightness standardised contrast (SC) tolerance 

for contrasting edges 

.4.9. > c dsp comp. mode 0 0 1 - Brightness edge evaluation 

0 = edge evaluation ON 


.5.0. c color tolerance 1,3 1,1 10 - Color tolerance for red/green and blue/green 

for contrasting edges 


.5.2. canmon scan - - - - Parameter title 

.5.3. canmon mid of scan 0,00 -5,00 5,00 mm The sensor scan axis intersection in Canmon may be 

offset to the left (negative value) or right (positive value). 

.5.4. canmon zoom scan 1 1 2 - Zoom function 

1 = total measuring range in sensor scan 

2 = half measuring range in sensor scan with double 

resolution 

.5.5. canmon delta scan 0 0 3 - Instead of the three colours red, blue, green, the 

differentiated scan is displayed on-screen. 

0 = all three colours are normally displayed 

1 = Differentiated scan displayed in red 

2 = Differentiated scan displayed in green 

3 = Differentiated scan displayed in blue 


.5.7. web lighting - - - - Parameter title 

.5.8. > web lighting mode 1 0 3 - Type of lighting 

0 = constantly changing (flood light, diffuse light, 

no lighting, flood light, diffuse light, no lighting, 

flood light etc.) 

1 = only flood lighting 

2 = only diffuse lighting 

3 = external lighting (back lighting) or no lighting, only 

external lighting (e.g. daylight, machine lighting etc.) 

.5.9. web lighting fixed 0 0 1 - Lighting mode locked 

0 = enabled 

1 = locked 

.6.0. external can lamp 0 0 2 - Type of external lighting 

0 = no external lighting 

1 = passive external lighting (exposure time is controlled 

2 = microprocessor-contr. back lighting transmitter 

(optional) 

.6.1. • exposure time 5,000 5,000 10,000 ms Exposure time 

.6.2. offset ADC -5 -31 31 - Sensor zero point offset (only for E+L serv. engineers) 

.6.3. gain ADC 18 0 63 - CCD analog signal gain (only for E+L service engineers) 

.6.4. • I-led flood light 20,00 0,00 40,96 mA If value 4 is not achieved, (only if flood light - transmitter is 

in operation), one of the flood light transmitter LEDs may 

be defective. 

B Page 17



.6.5. • U-led flood light 10,8 0,00 40,96 V If the display drops below 8, the light transmitter is defective 

(only if the flood light transmitter is in operation) 

.6.6. • I-led diffuse light 14,00 0,00 40,96 mA If value 4 is not achieved, (only if diffuse light transmitter is 

in operation), one of the diffuse light transmitter LEDs may 

be defective 

.6.7. • U-led diffuse light 10,8 0,00 40,96 V If the display drops below 8,the light transmitter is defective 

(only if the diffuse light transmitter is in operation). 

.6.8. trouble shooting - - - - Parameter title 

.6.9. • percent good dma 100,0 0,00 100,0 % Operational safety of the CCD data flow 

If the value of 100.0 is not achieved, a massive hard or 

software problem has arisen. 

.7.0. • status lm 9822 0 -1 1 - Serial programming of AD converter LM 9822 

0 = not performed 

1 = performed and error-free 

-1 = performed and error-free 

.7.1. • hardware test 0000 0000 FFFF hex Self test result 

.7.2. dsp emulator 0 0 1 - DSP watchdog ON/OFF 

0 = on 

1 = off 

.7.3. no invalid 0 0 1 - Attention: only for special application 

Actuating element blocking With value "1" actuating 

element will not be blocked on loss of the guiding criterion. 

May only be used for special applications. 

.7.4. line as two edges 0 0 1 - Attention: only for special application 

Line width monitoring (only possible with DI 9022) 

0 = Line width monitoring OFF 

1 = Line width monitoring ON 

.7.5. line ATE lowpass 5 0 8 - Attention: only for special application 

Smoothing of line edge signal and higher resolution. Only 

active with line width monitoring 

.7.6. resolution pitch 45 40 50 - Attention: only for special application 

Fine adjustment of line width output 

If line width output deviates from the actual line width the 

output may be changed with this parameter. 

Parameter value list (Selection list) 

B Page 18 

If a ">" symbol is indicated in front of the parameter, it may be 

edited in CANMON with the help of a parameter value list (selection 

list). Select the "Value" field and open the parameter value list 

via the enter key. Use the cursor keys to select the required parameter 

value, press the spacebar to mark the parameter value.

6.2 Optimising and setting 

specific parameters 


In the case of clear guiding criteria no changes to the following 

parameters are necessary. To display the sensor scan 

and optimize parameters a CANMON program or command 

station DO 2000 is required. 

Default values are selected so that the majority of guiding criteria 

may be detected. As guiding criteria are mostly subject to certain 

fluctuations the individual tolerances are wide. Nevertheless in order 

to identify the guiding criterion with great reliability the guiding 

criterion must adhere to all tolerances. 

The effect of changes in the relevant parameters may be checked 

immediately in parameter "DSP reason of lost" and "per cent of valid" 

Attention: a "per cent of valid" of 100 % may not be achieved by 

widening the tolerances (increasing parameter values). A "per cent of 

valid" of 70 % is a very good value! At 15 % guiding still works (e.g. 

broken guiding criterion). 

If tolerances are widened the sensor will no longer be able to distinguish 

different guiding criteria, the sensor may then also jump to a 

similar guiding criterion! 

In the case of difficult criteria better results may be achieved with 

narrower tolerances. 

Optimization example (line width tolerance): 

First of all the line width parameter value is reduced until the "percent 

of valid" parameter value decreases. 

If the parameter value is increased a little again the sensor should 

permanently signal valid. Loss of a constant guiding criterion is 

henceforth more or less excluded. 

If each parameter in question is successively set in this way operation 

will be with very narrow tolerances, precisely adjusted to the 


The benefit is a clear identification of the guiding criterion without 

possible limiting of the search range. 

The following parameters are suitable for optimizing: 

.3.3. / .4.0. width tolerance 

.3.5. /.4.2. / .4.8. contrast tol 

.3.7. /.4.4. / .5.0. color tolerance 

B Page 19


B Page 20 

Sensor scan 

3.6. >bl dsp comp. mode 

.4.3. >dl dsp comp. mode 

.4.9. >c dsp comp. mode 

The brightness edge evaluation provides additional barring against 

similar lines and contrasting edges. During the edge evaluation, the 

brightness jump between the edge of the guiding criterion and the 

background is evaluated. By means of the edge evaluation, in certain 

cases jumping to another guiding criterion with similar properties may 

be avoided, e.g. label scanning. 

Example: 

If a light guiding criterion is scanned on a dark background, the camera 

scan is as illustrated in the figure opposite. Only the broken area 

is relevant for the edge evaluation. The jump has a positive pre-sign. 

If the jump goes into the negative (dark guiding criterion ) the color 

line sensor will output "Guiding criterion lost" when the edge evaluation 

is active, parameter 18 indicates value 5. 

Parameter value 0 = edge evaluation ON (Default) 

Parameter value 1 = edge evaluation OFF 

In the case of greatly fluctuating backgrounds and an average 

brightness, the brightness edge evaluation may have to be 

switched off. 

.3.3. bl width tolerance 

.4.0. dl width tolerance 

If the line is subject to certain width fluctuations, this parameter value 

maybe used to set a tolerance of up to which line width the guiding 

criterion may still be detected. Entries may be infinite from 1% to 

100 % . 

Example: 

When 25 % has been entered and the taught line width is 2 mm, 

the line width may vary from a minimum of 1.5 mm to a maximum 

of 2.5 mm. Outside this range the color line sensor outputs that the 

"Guiding criterion is lost", parameter 18 indicates value 3. 

In "Contrasting edge" mode this parameter has no function. 

.3.4. bl bright tolerance 

.4.1. dl bright tolerance 

.4.7. c bright tolerance 

If the line is subject to certain brightness fluctuations, this parameter 

value may be used to set a tolerance of up to which degree of brightness 

the guiding criterion may still be detected. In the case of lines, 

the brightness tolerance applies to the average brightness on the 

line.

Average brightness values of the taught 

line: 

Red 180, Blue 174, Green 153 


edge at the brighter side: 




edge at the dark side 


This tolerance should be selected as high as possible (>60 %). 

Values less than 40 are not permissible! 

Example: 

The sum of the three color scans (red, green, blue), of the taught 

line corresponds to 100 %. In this example 507 brightness values 

(red 180 + blue 174 + green 153). If a tolerance range of 60 % is 

now set, the sum of the brightness values may vary within a range of 

202 (-60 %) to 811 (+60 %) brightness values. 

In the case of contrasting edges the area to the left and right of the 

contrasting edge is taken to determine the brightness. At the brighter 

side (higher brightness value) what is termed the minimum brightness 

is spoken of and at the darker side, of the maximum brightness. 

The tolerance must be determined individually for both brightness 

values. 

Example: 

60 % is set as the tolerance range. 

Minimum brightness = (sum of the brightness values of the taught 

edge ) - (X % of the sum of the brightness values of the taught edge) 

Minimum brightness = (205+191+164) - ((205+191+164)/100*60) 

Minimum brightness = 224 

The sum of the brightness values on the brighter side must not exceed 

the value of 224. 

Maximum brightness= (sum of the brightness values of the taught 

edge ) + (X% of the sum of the brightness values of the taught edge) 

Maximum brightness = (103+106+124) + ((103+106+124)/100*60) 

Maximum brightness = 532,8 

The sum of the brightness values on the dark side must not exceed 

the value of 532,8. 

If the tolerance (line or contrasting edge) is exceeded or not reached, 

the color line sensor will output "Guiding criterion lost", parameter 18 

indicates value 4. 

B Page 21



edge before the line/contrasting edge 




edge after the line/contrasting edge 

Average colour values of the taught line: 


B Page 22 

.3.5. bl contrast tol 

.4.2. dl contrast tol 

.4.8. c contrast tol 

The standardised contrast (SC) is the brightness difference on an 

edge/line, divided by the greater of the brightness values on this 

edge/line. 

Example: 

A tolerance range of 50 % is set. 

SC = (sum of the brightness values in front of the edge - sum of the 

brightness values after the edge) / (sum of the brighter brightness 

values) 

SK = ((178+165+153) - (100+95+97) / (178+165+153) 

SK = 0,411 

This value of SC 0.411 may vary by ±50 % . 

SC min = 0.411 - (0.411 * 50 / 100) = 0.206 

SC max = 0.405 + (0.405 * 50 / 100) = 0.616 

If SC min is not reached or SC max exceeded the color line sensor 

will output "Guiding criterion lost", parameter 18 indicates the value 

5. 

.3.7. bl color tolerance 

.4.4. dl color tolerance 

.5.0. color tolerance 

If the guiding criterion is subject to certain color fluctuations, this parameter 

may be used to set a tolerance up to which degree of color 

tolerance the guiding criterion may still be detected. In the case of 

lines the color tolerance applies for the average colors Red/Green 

and Blue/Green across the whole line width. 

Example: 

4.6 is set as tolerance range. 

Maximum color tolerance (Red,Green)= Red / Green * 4.6 

Maximum color tolerance (Red,Green)= 180/153*4.6 = 5.41 

Minimum color tolerance (Red, Green) = (Red/Green) / 4.6 

Minimum color tolerance (Red, Green) = (180/153)/4.6 = 0.25 

Maximum color tolerance (Blue,Green)= Blue / Green * 4.6 

Maximum color tolerance (Blue,Green)= 174/153*4.6 = 5.23 

Minimum color tolerance (Blue, Green) = (Blue/Green) / 4.6 

Minimum color tolerance (Blue, Green) = (174/153)/4.6 = 0.24 

The red/green color tolerance must vary in a range from 5.41 to 0.25 

and blue/green in a range from 5.23 to 0.24 . If the red/green tolerance 

range is exceeded, parameter 18 will indicated value 6. If the 

blue/green range is exceeded value 7 is indicated.

Colour values of the taught edge 

on the left side: 

R 102, B 100, G 112 

R 204, B 190, G 180 

Colour values of the taught edge 

on the right side 


In the case of contrasting edges a small area directly to left and right 

of the contrasting edge is taken to determine the color tolerance. 

Separate values must be established for both color tolerances. 

Example: 

3.2 is set as tolerance range. 

Maximum color tolerance left (Red,Green)= Red / Green * 3.2 

Maximum color tolerance left (Red,Green)= 102/112*3.2 = 2.91 

Minimum color tolerance left (Red, Green) = (Red/Green) / 3.2 

Minimum color tolerance left (Red, Green) = (102/112)/3.2 = 0.28 

Maximum color tolerance left (Blue,Green)= Blue / Green * 4.6 

Maximum color tolerance left (Blue,Green)= 100/112*3.2 = 2.85 

Minimum color tolerance left (Blue, Green) = (Blue/Green) / 3.2 

Minimum color tolerance left (Blue, Green) = (100/112)/3.2 = 0.27 

The color tolerance to the left of the contrasting edge, of Red/Green, 

must vary in a range from 2.91 to 0.28 and of Blue/Green in a range 

from 2.85 to 0.27 . If the tolerance range of Red/Green is exceeded, 

parameter 18 indicates the value 6. If the Blue/Green range is not 

reached value 7 will be indicated. 

Maximum color tolerance right (Red,Green)= Red / Green * 3.2 

Maximum color tolerance right (Red,Green)= 204/180*3.2 = 3.63 

Minimum color tolerance right (Red, Green) = (Red/Green) / 3.2 

Minimum color tolerance right (Red, Green) = (204/180)/3.2 = 0.35 

Maximum color tolerance right (Blue,Green)= Blue / Green * 4.6 

Maximum color tolerance right (Blue,Green)= 190/180*3.2 = 3.38 

Minimum color tolerance right (Blue, Green) = (Blue/Green) / 3.2 

Minimum color tolerance right (Blue, Green) = (100/112)/3.2 = 0.33 

The color tolerance to the right of the contrasting edge, of Red/ 

Green, must vary within a range of 3.63 to 0.35 and of Blue/Green 

within a range of 3.38 to 0.33. If the tolerance range of Red/Green is 

exceeded, parameter 18 indicates value 8. In the case of the Blue/ 

Green range not being reached value 9 will be indicated. 

If the maximum color tolerance is exceeded or the minimum color tolerance 

not reached the color line sensor will output "Guiding criterion 

lost". 

.2.9. >search range mode 

The search range for the guiding criterion is the entire measuring 

range. This parameter may be used to limit the search range in which 

the guiding criterion is sought. Limiting permits reliable scanning of a 

certain guiding criterion that occurs twice or several times in a measuring 

range. Jumping to another guiding criterion is thus made more 

difficult. 

B Page 23


7. Maintenance 

B Page 24 

The extent of the limitation depends on the scanning method: 

Line scanning: maximum line width + 2 mm 

Contrast scanning: 2 mm 

The following parameter entries are possible: 

0 = no search range limitation 

1 = search range limitation always active 

2 = time-limited search range limitation 

If the sensor loses the guiding criterion during automatic 

mode after a specified time (time entry in parameter 30) the 

search range will be extended to the entire measuring range of 

the sensor. 

3 = time-limited search range limitation 

If the sensor loses the guiding criterion regardless of which 

operating mode is selected, after a specified time (time entry in 

parameter 30) the search range will be extended to the entire 

sensor measuring range. 

.3.0. full r. time (x5 ms) 

Once the time entered in parameter 30 has expired, the search range 

limitation exercised by parameter 29 is cancelled. 

Attention: the parameter value is multiplied by 5 ms. An entry of e.g. 

100 means that the search range limitation will be cancelled after 

500 ms (100 x 5 ms = 500 ms). 

The sensor glass should be kept free from soiling and cleaned regularly 

(e.g. 1 x monthly) with a soft clean cloth or optical paper. 

The light transmitter LEDs have an average service life of approx. 

10000 operating hours. As, with increasing age, luminosity diminishes 

it is recommended that the light transmitter be replaced after 

10000 operating hours.

8. Spare parts 


Proceed as follows to replace LEDs (see also the following figure): 

Screw recessed heads 

Cover frame 

Securing screws 

Diffuse light transmitter 

Aluminium profile 

Please ensure that the glass is not damaged as it is not permanently 

fixed to the cover frame or sensor housing, risk of breakage! 

Remove the screw recessed heads from the cover frame and remove 

the cover frame and glass cover. 

Remove the two securing screws of the appropriate light transmitter 

and withdraw it carefully. 

Remove electrical plug-in connection between light transmitter 

and pcb and remove the light transmitter. 

In the case of flood light transmitters, the pcb must be separated 

from the LEDs by removing the two securing screws on the aluminium 

profile. 

Assembly is performed in reverse order. 


Flood light transmitter 

Screw recessed heads 


Insert glass properly, the matt side must be on the diffuse light 

transmitter. 

Flood light transmitter 308848 

Diffuse light transmitter 308846 

Back light transmitter (complete PCB) 315224 

B Page 25


9. Wiring diagram 

10. Technical data 

B Page 26 

max. 8 m 

The length of the sensor line must not exceed a maximum 

of 8 m. The total length of the CAN bus line must not exceed 

160 m. 

Supply voltage 

Nominal value 24 V DC 

Permissible range 20 - 30 V DC 

(ripple incl.) 

Current input approx. 300 mA 

Ambient temperature 10 °C to + 50 °C 

Storage temperature - 25 °C to + 85 °C 

Measuring range ± 10 mm 

Web offset for 

contrast scanning max. ±7.5 mm 

line scanning (width 0.5 mm) max. ±7.3 mm 

line scanning (width 8.0 mm) max. ±4.5 mm 

Resolution 0.02 mm (45 pixels/mm) 

Pixel count 3 x 2700 (red, green, blue) 

Scanning rate 200 Hz 

Distance bottom sensor edge/ web 24 mm ±1 mm 

(with line widths less than 1 mm 

the distance of 24 mm 

must be observed exactly) 

Inclination angle sensor / web 14 ° ±1 ° 

Reference line 

Line width nominal value 2 - 3 mm 

Line width min. 0.2 mm 

Line width max. 8 mm 

Background width min. 1 mm (one-side) 

Reference color contrast 

Color contrast width min. 1 mm (one-side) 

Weight approx. 750 g 

Dimensions (L x W x H) 125 x 76 x 76 

Protection class IP 65 

Color line sensor 

FE 5002 

Technical data subject to modification without notice! 

YE = yellow 

BN = brown 

GY = grey 

PK = pink 

WH = white 

GN = green

Brief description for 

manual learning 


+ 


Web may be inserted only when the web guider and the processing 

machine are switched off. 

Risk of injury! 

Set parameter "20 teaching mode" of the color line sensor to value 

"1" (manual learning). 

Select center mode 

Set web offset to "0" 

Press the "Increase/Decrease value" keys at the same time. 

Insert web 

Positioning the sensor to the web 

Position the color line sensor so that the guiding criterion which is 

to be scanned is at the reference position (orange light spot in the 

middle). 

Learning the guiding criterion 

If the guiding criterion has already been learned, the following 

steps up to "automatic mode" can be skipped over. 

Positioning the sensor to the web. The guiding criterion that is 

to be scanned must be in the scanning range (between the two 

outer orange light spots) of the color line sensor. 

Determine the quality of the guiding criterion (light line, dark line, 

color contrast) and the quality of the background / support material 

and select the appropriate operation mode using the "Sensor" 

key. The green LED arrow beside the selected guiding criterion 

lights up. 

Press the "SETUP" key and additionally the "Sensor" key. After 

approx. 1 second both keys may be released. The guiding criterion 

is taught while the keys are pressed. If teaching difficult 

guiding criteria (broken) on moving webs, both keys must be held 

down longer (e.g. 5 seconds). The green LED arrow next to the 

selected guiding criterion flashes. The red light dot indicates the 

best guiding criterion detected in the sensor scanning range. 

Select the required guiding criterion that is to be scanned by 

pressing the "GRP" or "DEV" key. The red dot indicates the appropriate 


During selection the LEDs in the LED strip flash. The more LEDs 

flash the better the guiding criterion has been recognized. Depending 

on whether flood or diffuse lighting is being used for scanning, 

various numbers of LEDs may flash for the same guiding 

criterion. In any case, selection should always be on the basis of 

as many LEDs flashing as possible. 

In acknowledgement, press the sensor key once. The guiding criterion 

is stored, the green LED arrow goes on. The red light spot 

follows the guiding criterion. After acknowledgement the LED strip 

indicates the current position of the guiding criterion. 

B Page 27

Brief description for 

automatic learning 


red dot two red dots 

+ 

Erhardt + Leimer GmbH 

Postfach 10 15 40 

D-86136 Augsburg 

Telephone (0821) 24 35-0 

Telefax (0821) 24 35-6 66 

Internet http://www.erhardt-leimer.com 

E-mail info@erhardt-leimer.com 

Automatic mode: if the guider block is not connected, the web 

guider will go into automatic mode immediately. 

Set web offset 

Use the "Increase/Decrease value" keys in automatic mode to set 

a web offset. 

Only insert web when the web guider and processing machine 

are switched off. 

Risk of injury! 

Set parameter "20 teaching mode" of the color line sensor to value 

"0" (automatic learning). 

Select center mode 

Set web offset to "0" 

Press the "Increase/Decrease value" keys at the same time. 

Insert web 

Position the sensor on the web. 

The guiding criterion that is to be scanned must be located at the 

position of the middle orange light spot (set position). 

Learning the guiding criterion 

If the guiding criterion has already been learned, the following 

steps up to "automatic mode" can be skipped over. 

Press the "Sensor" and "SETUP" keys at the same time. 

The guiding criterion is taught. After approx. 1 second both keys 

may be released. Teaching is completed. If teaching is performed 

on moving webs for difficult guiding criteria (e.g. broken) both keys 

must be held down longer (e.g. 5 seconds). 

If the guiding criterion has been detected, the red dot is also located 

on the guiding criterion or two red dots enclose the guiding criterion. 

The red light spot follows the guiding criterion. The LED light strip indicates 

the current position of the guiding criterion 

Automatic mode: if the guider block is not connected, the web 

guider will go into automatic mode immediately. 

Set web offset 

Use the "Increase/Decrease value" keys in automatic mode to set 

a web offset.

en Description B Color line sensor FE 5002

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