Re WG251 SKB-B RESMART Quick start guide

.ENG.
WG251 SKB-B
RESMART
Webguide system for MWG10
INSTALLATION, USE AND MAINTENANCE MANUAL
INSTRUCTIONS FOR THE DEVICE ASSEMBLY ON THE END MACHINE
Original instructions

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 I
Contents
Warnings ....................................................................................................................................1
Handling instructions ................................................................................................................1
Safety notes................................................................................................................................1
Assembling the webguide on the end machine ......................................................................2
Electrical connections...............................................................................................................5
Sensor positioning ....................................................................................................................7
What is WG251 SKB-B RESMART ............................................................................................8
General operation ......................................................................................................................8
MWG10 panel .............................................................................................................................9
Fast start up ........................................................................................................................................... 14
Calibration .............................................................................................................................................. 15
Programming and calibration funcions ............................................................................................... 16
F.1 - Motor speed ....................................................................................................................................... 18
F.2 - Dead zone.......................................................................................................................................... 18
F.3 - Slow zone........................................................................................................................................... 18
F.5 - Interrupted line ................................................................................................................................... 18
F.6 - Stop period......................................................................................................................................... 18
F.7 - Setup block......................................................................................................................................... 18
F.8 - Fnfunction .......................................................................................................................................... 18
F.10 - Servo Center offset .......................................................................................................................... 19
F.11 - Last status memo............................................................................................................................. 19
F.12 - AUTO at power up without material.................................................................................................. 19
F.14 - MAN motor inversion........................................................................................................................ 19
F.15 - Remote controls ............................................................................................................................... 19
F.20 - Sensor selection............................................................................................................................... 20
F.21 - Sensor 1 field of view ....................................................................................................................... 20
F.22 - Sensor 2 field of view ....................................................................................................................... 20
F.30 - Enable complete............................................................................................................................... 20
F.31 - Motor Power..................................................................................................................................... 20
F.32 - Enable high speed............................................................................................................................ 20
F.50 - Calibration ........................................................................................................................................ 20
F.51 - Complete Servo Center.................................................................................................................... 21
F.52 - Regulation inversion......................................................................................................................... 21
F.60 - Display brightness............................................................................................................................ 21
F.90 - Password.......................................................................................................................................... 21
F.91 - Reset MWG10.................................................................................................................................. 22
F.92 - Diagnostics....................................................................................................................................... 22
F.99 - Firmware version.............................................................................................................................. 22
Technical specifications..........................................................................................................23
Maintenance .............................................................................................................................23
Disassembly and dismantling.................................................................................................23
Information about device recovery.........................................................................................24
Guarantee .................................................................................................................................25

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 1/25
Warnings
The present manual is for device fitters and operators.
We recommend to read this manual carefully before the handling, installation, use, maintenance
and disassembly of the device.
This manual is an integral part of the device and must be kept until the device is decommissioned. It
reflects the technical state of the device at the time of its sale.
The plant builder may include the present manual in the documentation for plant use.
Re S.p.A. reserves the right to update its production and/or manuals without updating products already
sold and previous manuals.
This device is a partly completed machine that complies with directive 2006/42/CE. It is destined for
professional use in industrial settings; it is not able to carry out any process on its own but must be fitted
into a machinery.
It is the machine manufacturer’s responsibility to comply with the laws in force in the country the
machine is installed in and to adopt all the necessary safety measures.
We strongly recommend you to use the partly completed machine only for the purpose it has
been designed for.
This device complies with directive EMC 2004/108/CE (D.Lgs. 6/11/2007 n.194).
Handling instructions
When handling take care not to knock the webguide as this may damage it.
Safety notes
The webguide WG251 SKB-B RESMART must be fitted and used by qualified
technical personnel, in compliance with the safety norms required for the environment
the machine is installed in.
It is not suitable for work in open air areas, corrosive, explosive or excessively dusty
environments.
Don’t touch any voltage carrying parts.
Do not damage, tamper with or tread on the connection cables.
The webguide WG251 SKB-B RESMART includes moving parts so it is fitted with
special guards to stop anyone from crushing their hands. In any case, always take care
and do not touch moving parts.
During installation and use, remove bracelets, watches and other items from arms and
hands which may catch on moving parts and secure loose clothing.
Beware of the material that runs on the webguide as it could cut you!
When handling the webguide always wear safety gloves and boots
and observe all the safety norms required for the environment in
which it is located.

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 2/25
Assembling the webguide on the end machine
1) Fit the SU m-25 sensor on the webguide sensor holder bar:
Application with a micrometer bar (the SU m-25 sensor is already fitted on the micrometer
bar)
Fit the micrometer lock onto the sensor holder bar so that the outer side of the securing
bracket is aligned with the outer side of the sensor holder bar.
Tighten the two dowels under the securing bracket.
Screw up the positioners inserted in the slide until they are resting on the bar and then lock
them in place with the two nuts.
(All the locking elements are supplied already inserted in their relative housings)
To assemble the webguide wear safety gloves and boots and observe
all the safety norms required for the environment in which it is
installed.
MICROMETER LOCK
SU m-25
sensor
Sensor slide
Positioners
and nuts
Securing
bracket
Dowels
MICROMETER LOCK
FITTED ON WEBGUIDE
Knob for the sensor
positioning
Sensor holder bar
The outer side of the securing bracket
must be aligned with the outer side of
the sensor holder bar

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 3/25
Application without a micrometer bar
Fit the slide onto the sensor holder bar so that the sensor is in the required position
according to where the material will run.
Tighten the knob located under the sensor.
2) Fasten the WG251 SKB-B RESMART webguide to the machine structure using the 4 holes on the
external box support table using 4 x M6x10 screws (not supplied with the webguide).
The direction of the guide should be fixed according to the direction the material will run in (the
arrow on the frame of the webguide indicates the material feed direction).
Check that the infeed and outfeed machine rollers are parallel and on the same plane as the
webguide rollers.
Assemble the guide observing the safety distances between the webguide and the rest of the
machine, as stipulated in current normatives
Caution! It is important to secure the webguide before connecting it up electrically;
when making the electrical connections follow the instructions in the following section.
SU m-25 sensor
Sensor slide
Knob for fixing
Sensor holder bar
Fixing holes
for screw M6x10

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 4/25
WG251 SKB-B RESMART right
WG251 SKB-B RESMART left
The material flow direction is from left to right, as
indicated by the arrow on the frame of the webguide
The material flow direction is from right to left, as
indicated by the arrow on the frame of the webguide
136130
250
271
27.5
103
36
180
n°4 M6x10
80
Ø50
Ø50
200
166
80 136
80
136 80
Ø50
Ø50
200
166
130136
250
271
27.5
n°4 M6x10
180
36 103

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 5/25
Electrical connections
Description
Electrical
characteristics
Connector
Pin
Wire colour
POWER SUPPLY +
24Vdc, 2,5A
1
Red
POWER SUPPLY -
0Vdc
2
Black
POWER SUPPLY +
24Vdc, 2,5A
3
Red
KEYS BLOCK
0 ÷ 24Vdc
4
Red/Black
AUTO/MAN
0 ÷ 24Vdc
5
White
SERVO CENTER
0 ÷ 24Vdc
6
White/Black
DIAGNOSTIC output
0 ÷ 24Vdc
7
White/Violet
N.C.
N.C.
8
Violet
Sensor connector
Power supply connector + remote contacts

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 6/25
Attention!
To ensure this instrument functions correctly, wait for at least 5 seconds between
switching it off and switching it on again.
Important!
Use shielded power supply cables only, and connect the shield to the earth point
located on the MWG10 unit. The earth point (represented in the drawing), must be
connected to the machine frame by a cable, that must be as short as possible; the
cable section must be 6mm2minimum.

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 7/25
Sensor positioning
Caution!
When calibrating or using the webguide, if you need to adjust the
position of the sensor we strongly advise you to make the adjustment
when the webguide and the material are NOT moving!
Application with a micrometer bar
Move the sensor by turning the micrometer bar knob until the required position is reached.
Application without a micrometer bar
Slacken the knob located under the sensor.
Move the sensor until it reaches the required position.
Screw up the knob to lock the sensor.
Knob for the
sensor fixing
Knob for the sensor
positioning

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 8/25
What is WG251 SKB-B RESMART
WG251 SKB-B RESMART is a webguide edge regulation system, consisting of a driver MWG10 and an
ultrasound sensor SU m-25.
The MWG10 control interface, with its simple, easy-to-use graphic display, enables the user to execute
the regulation procedure and set up the webguide system operating parameters.
General operation
Each time the WG251 SKB-B RESMART is switched on, if the material is absent, it executes a
self-diagnostic routine, upon completion, if it detects any anomalies, the digital output (GENERIC
ALARM) is put on 0Vdc; otherwise the output is put on 24Vdc to indicate the instrument functions
correctly.
Once the self-diagnostic routine is complete, the unit switches to AUTO operating status (automatic
regulation) if no anomalies are detected and F.12=1, or if there is material inside the field of view of the
sensor. In any other case the unit remains in MAN status.
When the system is in AUTO operating status, the alignment unit moves to correct the position of the
material so that the edge remains in the centre of the sensor (with set point = 0). It is possible to modify
the position by changing the set point value as described on pages 10-11.
It is possible to change the sensor position by turning the micrometer bar knob, as indicated on page 7.
MWG10 panel
SU m-25 sensor
Arrow that indicates the
material direction flow
Material
(it runs in the same direction as
indicated by the arrow)

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 9/25
MWG10 panel
The front panel is fitted with a colour graphic display, that displays information on the operating status of
the instrument.
Key
Name
Function
Fn
Direct access to a menu function.
servo center
Enables and disables the actuator Servo Center .
Manual
Enables the manual status.
The actuator moves by pressing the keys +or –.
automatic
Enables the automatic status. The actuator will move the material until the
sensor is covered by a value equal to the set point set.
write
Enables and disables the change to the value of the selected function and
of the set point (if enabled: the digit is white; if disabled: the digit is green or
orange).
enter
Enables and disables the access to the functions menu.
–
Increase or decrease the value of the white digit (set point value in the
operating window, number of the current function, or the value of the
function in the functions menu).
In MAN status: moves the actuator to the right or left.
+

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 10/25
OPERATING WINDOW (GREEN): the window is normally displayed; it displays the parameters
managed during the adjustment and the operating status of the web guide system. It is used to
change the set point and to move the actuator manually.
The cursor indicates the actuator position; it can appear in different modes:
the cursor is green: this means that the actuator is inside the work zone, the alarm
digital output OUT dig.1 is inactive;
the cursor is red, on the left-hand side or on the right-hand side of the bar: this
means that the actuator has reached the left or right limit switch, the digital output
OUT dig.1 is active (limit switch alarm);
there are two red cursors at the opposite ends of the bar: this means that the
actuator is not calibrated; perform the calibration as indicated on page 20.
HOW TO CHANGE THE SET POINT
The set point can only be changed in AUTO status, therefore if it is in the MAN status
(on the display), press the automatic key.
Press the write key to enable the change to the set point (the colour of the digit goes
from green to white ).
WHAT TO DO
Press the +or –keys to increase or decrease the value of the set point.
Displays the operating status:
= manual
= automatic
Set point value
Enables the functions
menu window
Enables/disables the
set point change
Change the set point value.
In manual state they move the
actuator
Sensor 1
active = green
inactive = white
Green cursor ( ) = field of view coverage
Vertical bar ( ) = field of view centre
Broken vertical bar ( ) = set point change
Quick access to
the selected function
Servo Center actuator
Selects the manual status
Selects the automatic status
Sensor 2
active = green
inactive = white

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 11/25
Press the write key to confirm the value set on the set point and go back to the
operating window.
Attention!
After about a minute of inactivity the set point change is disabled automatically,
and it goes back to the operating window.
HOW TO MOVE THE ACTUATOR
The actuator can only be moved in MAN status, therefore if it is in the AUTO status (
on the display), press the manual key.
WHAT TO DO
Press the +or –keys to move the actuator.
Press the servo center key to position the actuator at the centre of its stroke.
Attention!
By pressing the servo center key the actuator will start moving. To interrupt the
movement, press the servo center key once again.

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 12/25
FUNCTIONS MENU WINDOW (ORANGE): this window is used to access the functions and set
the operating parameters, perform the calibration and reset the system.
HOW TO ACCESS THE FUNCTIONS MENU WINDOW
Press the enter key for a few seconds to switch between the operating window and the
functions menu window .
F.1
The display will show the last function set .
WHAT TO DO
Press the +or –keys to scroll the functions of the menu, to find the desired function (the
number of the function is displayed in white, whilst its value is in orange).
Press the write key to access the value of the function (the value of the function turns
white, whilst the number of the function turns orange).
Press the +or –keys to increase or decrease the value of the function, to find the
desired value.
Press the write key to confirm the value set on the function and go back to the functions
menu (the value of the function turns orange, whilst the number of the function turns
white).
To exit the functions menu window press the enter key for a few seconds, to memorise
all the parameters changed.
Attention!
After about a minute of inactivity the functions menu window is disabled
automatically .
Value of the selected function
Disables the functions
menu window
Enables/disables the
change to the function
value
Change the function and
its value
Selected function
Associates the key to
the selected function
Selects the manual status
Selects the automatic status

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 13/25
ACCESS PASSWORD
If the password has been set in the F.90, as soon as you access the functions menu
window you must enter the password (the display shows the white padlock icon).
Press the +or –keys to increase or decrease the value of the password that you want
to enter.
Press the write key to confirm the password.
If the display shows the red blinking padlock, the password entered is incorrect. Try and
re-enter it.
F.1
If the password entered is correct, you access the functions menu and the display
shows the last function set in orange.

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 14/25
Fast start up
In this section the installation and test procedure for a fast start up of the instrument are described.
More explanations on the functioning of the single functions are detailed in the following part of the
manual.
Note:Re spa furnishes the instrument already calibrated, ready for the start up procedure.
1. Mount the SU m-25 sensor on the webguide and secure mechanically the webguide to the
machinery, as described on pages 2-3.
2. Carry out the electrical connection procedure and connect the system to the power supply as
indicated on pages 5-6.
3. The MWG10 firmware version appears on the display, then the operating window appears.
4. Position the material and thread it up correctly between the rolls so that it is completely inside the
fork of the SU m-25 sensor, until the led-bar is completely illuminated. (If it is necessary to shift
the sensor, see instructions on page 7).
5. Press the contrast detecting key on the SU m-25 sensor and wait the led-bar flashes three times
(this means that the contrast is detected rightly)
6. Place the SU m-25 sensor in the position where the edge of the material is positioned when the
material is processed on the machine. (If it is necessary to shift the sensor, see instructions on
page 7).
7. The system is calibrated and ready to run.
Led-bar, it must be totally illuminated when
the material is completely inside the fork of
the sensor
Material, completely
inside the fork of the
sensor
Contrast detecting key
SU m-25 SENSOR

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 15/25
Calibration
Note: if the adjustment is inverted, change the value of the F.52 function Invert adjustment.
(if 1 is set, set 0; if 0is set, set 1)
Keep the enter key pressed for a few seconds to access the functions menu window.
Scroll the functions with the +key, until you reach the F.50.
Press the write key to enter the F.50 function and start the calibration.
The system switches to the MAN status
0.0
Perform the sensor calibration:
remove the material from the sensor and wait for the display to show the maximum value
(acceptable maximum value: between 4.5 and 5.0); insert the material in the sensor and
wait for the display to show the minimum value (acceptable minimum value: at least 1V
less than the maximum value). If the minimum value is displayed in white it means that it
is acceptable, whilst if it remains red it means that the difference between minimum value
and maximum value is less than 1V: not acceptable.
Important! Use the same material that will be processed on the machine.
Press the write key
Press the +key to move to the F.51
Press the write key to start the actuator calibration
Attention! The actuator moves, performing a complete Servo Center. Wait for it to stop.
Press the enter key to end the calibration.

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 16/25
Programming and calibration funcions
This section describes the programming and calibration functions available for the WG251 SKB-B
RESMART system.
Funct.
Description
Range of values
Default settings
F.1
Motor speed
1÷95 if F.32=0
1÷120 if F.32=1
50
F.2
Dead zone
0÷Zslow
6
F.3
Slow zone
Zdead÷60
10
F.5
Interrupted line
0=Off -1=On
0=Off
F.6
Stop period
1÷100 -Infinite
Infinite
F.7
Setup block
0=Off -1=On
0=Off
F.8
Fn function
0=Off -1=On
1=On
F.10
Servo Center offset
0÷100
50
F.11
Last status memo
0=Off -1=On
0=Off
F.12
AUTO at power up without material
0=Off -1=On
1=On
F.14
MAN motor inversion
0=Off -1=On
0=Off
F.15
Remote controls
0=Off -1=On
2=enabling the controls with
automatic key, disabling the
controls with manual key
3=On (AUTO and MAN
separate and Servo Center)
4=On (AUTO/MAN, Servo
Center and keys block)
4=On (AUTO/MAN,
Servo Center
and keys block)
F.20
Sensor selection
1=Sensor 1
2=Sensor 2
3=Centre guide
1=Sensor 1
F.21
Sensor 1 field of view
5÷30
15
F.22
Sensor 2 field of view
5÷30
15
F.30
Enable complete
0=Off -1=On
0=Off
F.31
Motor power
1÷4
2
F.32
Enable high speed
0=Off -1=On
0=Off
F.50
Calibration
See procedure on page 20
F.51
Complete Servo Center
The actuator moves to the right, to the left and stops in
the desired position (set on F.10)
F.52
Regulation inversion
0=Off -1=On
0=Off
F.60
Display brightness
1÷15
5
F.90
Password
0÷255
0
F.91
Reset MWG10
See procedure on page 22
F.92
Diagnostics
Displays the system values
F.99
Firmware version
Displays the firmware version of the MWG10 device

Re S.p.A. WG251 SKB-B RESMART
Rev. 05/15 17/25
Attention!
After about a minute of inactivity the functions menu window is disabled automatically.
For more information about the operation of the functions menu window see pages 12-13
Keep the enter key pressed for a few seconds to access the functions menu window
(the function number will be displayed in white, now you can scroll the functions with the +
or –keys). Use the enter key to exit the menu.
In the functions menu, use the write key to access each single function (the function
parameter will be displayed in white, at this point it can be changed with the +or –keys).
In the function press write to confirm the setting.
In the functions menu, use the +or –keys to scroll the menu functions (when the
display shows the function number in white).
In the functions press them to change the parameters set (when the display shows the
function value in white).
In the functions menu, after having selected the desired function, press the Fnkey to
associate the function to this key.
Now it will be possible to recall the function without accessing the functions menu, but by
simply pressing the Fnkey in the operating window (only possible if in the F.8 function it
has been enabled, by setting 1)
The F.50 Calibration, F.51 Complete Servo Center , F.52 Regulation inversion and F.90
Password functions cannot be associated to the Fn key.