RADWAG MW-01-A User manual

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JANUARY 2022

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PRECAUTIONS
Prior to installation, operation or maintenance activities, carefully read this user
manual. Follow the instructions strictly.
Prior to the first use, carefully read this user manual. Use the device only
as intended.
Protect the device against considerable temperature variation, solar and
UV radiation, substances causing chemical reactions.
The device must not be operated in hazardous areas endangered with
explosion of gases, and in dusty environments.
In the case of damage, immediately unplug the device from the mains.
The device to be decommissioned must be decommissioned in
accordance with valid legal regulations.
If the device is to be operated in conditions that are difficult due
to electrostatics (e.g. printing house, packing centre, etc.), you must
connect it to the earth wire. To enable this, the device features functional
earthing terminal, marked with symbol.

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CONTENTS
1. INTENDED USE .................................................................................................................................................5
2. WARRANTY CONDITIONS ...............................................................................................................................5
3. MAINTENANCE .................................................................................................................................................5
4. SERVICE AND REPAIR.....................................................................................................................................6
5. RECYCLING.......................................................................................................................................................6
6. MECHANICAL DESIGN.....................................................................................................................................6
6.1.General View................................................................................................................................................7
6.2.Dimensions...................................................................................................................................................7
6.3.Connectors...................................................................................................................................................7
6.4.RS232 Connector.........................................................................................................................................8
6.5.Inputs/Outputs..............................................................................................................................................8
6.5.1.Technical Specifications......................................................................................................................9
6.6.Main Board Sockets.....................................................................................................................................9
6.7.Technical Specifications.............................................................................................................................10
6.8.Models........................................................................................................................................................11
7. INSTALLATION................................................................................................................................................11
7.1.Unpacking and Installation.........................................................................................................................11
7.2.START-UP..................................................................................................................................................11
8. INSTALLER INSTRUCTION............................................................................................................................11
8.1.6-Wire Load Cell Connection.....................................................................................................................11
8.2.4-Wire Load Cell Connection.....................................................................................................................12
8.3.Connecting Load Cell’s Cable Shield.........................................................................................................13
9. FACTORY PARAMETERS ..............................................................................................................................14
9.1.Factory Parameter Access.........................................................................................................................14
9.2.Factory Parameters....................................................................................................................................15
9.3.Parameter Value Modification....................................................................................................................16
9.4.Factory Adjustment ....................................................................................................................................17
9.4.1.Start Mass Determination..................................................................................................................17
9.4.2.Adjustment Factor Determination......................................................................................................17
9.5.Linearity Correction ....................................................................................................................................18
9.6.Gcor............................................................................................................................................................19
10. OPTIONAL EXTENSION MODULES ............................................................................................................19
10.1. Exclusions Regarding Installation of Additional Modules........................................................................19
10.2. RS485 Module .........................................................................................................................................20
10.2.1. RS485 Pins .....................................................................................................................................20
10.3. ETHERNET Module.................................................................................................................................20
10.4. ETHERNET IP Module ............................................................................................................................21
10.5. Analog Output Module .............................................................................................................................22
10.5.1. Wiring Diagrams of the Current Loop Module ................................................................................23
10.5.2. Technical Specifications..................................................................................................................23
10.6. PROFIBUS Module..................................................................................................................................24
10.6.1. PROFIBUS Pin Arrangement..........................................................................................................24
10.7. PROFINET Module..................................................................................................................................24
11. ACCESSORIES..............................................................................................................................................25

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1. INTENDED USE
The MW-01-A mass converter is designed to be a component of an industrial
load cell scale. Depending on the needs, communication with the mass
converter can be carried out via the following communication interfaces:
RS232, RS485, Ethernet, Profibus, Profinet, Ethernet IP. The MW-01-A mass
converter is compatible with indicators and PC.
Operation of the MW-01-A mass converter via PC is carried out using
„MwManager” software.
2. WARRANTY CONDITIONS
A. RADWAG is obliged to repair or exchange all elements that appear to be
faulty by production or by construction.
B. Defining defects of unclear origin and means of their elimination can only
be realized with the assistance of the manufacturer and the user
representatives.
C. RADWAG does not bear any responsibility for damage or losses
resulting from unauthorized or inadequate performing of production
or service processes.
D. The warranty does not cover:
mechanical damage caused by product exploitation other than
intended, damage of thermal and chemical origin, damage caused by
lightning, overvoltage in the power network or other random event,
inappropriate cleaning habits.
E. Loss of warranty takes place if:
a repair is carried out outside RADWAG authorized service point,
service claims intrusion into mechanical or electronic construction by
unauthorized people,
the device does not bear security seal stickers.
F. Warranty conditions outline the warranty period for rechargeable
batteries attached to the device for 12 months.
G. For detailed warranty conditions read the service card.
H. Contact with the central authorized service: [phone].
3. MAINTENANCE
In order to clean the mass converter risk-free, it is necessary to disconnect
the device from the mains.
Avoid using cleansers containing any corrosive chemicals, e.g. bleach (with
chlorine). Do not use cleansers containing abrasive substances. Always
remove the dirt using a microfiber cloth, do it to avoid damage to the protective
coating. In the case of daily maintenance:

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1. Remove the dirt using cloth dipped in warm water.
2. For best results, add a little bit of dishwashing detergent.
4. SERVICE AND REPAIR
In the case of any sign of damage, it is necessary
to disconnect the device from the mains immediately.
The damaged component must be replaced or repaired
by RADWAG service directly.
In the case of any problems with correct operation of the device, contact
the closest manufacturer's service point.
In the case of defects, deliver the faulty product to the manufacturer's service
point. If the product cannot be delivered to the manufacturer's service point, call
the service and report the defect. Repair scope and method will be set up.
The user is NOT ALLOWED to carry out any kind of repair
of the device himself/herself. Any attempt of module
modification, repair etc. by unauthorized persons, will result
with loss of validity of manufacturer-issued certificates,
declarations and warranty.
5. RECYCLING
The MW-01-A mass converters must be recycled, they are not to be treated as
a regular household waste. Devices to be decommissioned must be
decommissioned in accordance with valid legal regulations.
6. MECHANICAL DESIGN
The mass converter is equipped with metal housing. Depending on the
MW-01-A model, the communication with external devices is carried out via
the following communication interfaces: RS232, RS485, Ethernet, Profibus,
Profinet, Ethernet IP. The module can be equipped with 3 digital inputs,
3 analog inputs and outputs such as current loop or voltage output. It is
powered with 12÷24VDC voltage.

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6.1. General View
Figure 1. MW-01-A mass converter, general view
6.2. Dimensions
Figure 2. MW-01-A mass converter, dimensions
6.3. Connectors
Figure 3. Arrangement of connectors

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1
Platform cable gland
2
RS232 M12 8P connector
3
3IN M12 8P connector.
4
3IN M12 8P connector.
5
Power cord cable gland.
6
PROFIBUS connectors (interchangeably with ETHERNET, PROFINET and ETHERNET
IP).
6.4. RS232 Connector
RS232
Pin1 –NC
Pin2 –RxD
Pin3 –TxD
Pin4 –NC
Pin5 –GND
Pin6 –5VDC
Pin7 –NC
Pin8 –NC
6.5. Inputs/Outputs
Standard MW-01-A mass converter is equipped with 3 optoisolated inputs and
3 semiconductor outputs (semiconductor relays). The signals are fed through
M12 8P connectors.
3IN
Pin1 –IN1
Pin2 –IN2
Pin3 –IN3
Pin4 –NC
Pin5 –COMM
Pin6 –VDC
Pin7 –GND
Pin8 –NC
3OUT
Pin1 –OUT1
Pin2 –OUT2
Pin3 –OUT3
Pin4 –NC
Pin5 –COMM
Pin6 –VDC
Pin7 –GND
Pin8 –NC

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6.5.1. Technical Specifications
Output parameters
Output quantity
3
Output type
Solid-state relay
Maximum output current
0.5 A DC
Maximum output voltage
30 VDC, AC
Input parameters
Input quantity
3
Input type
Optoisolated
Input voltage range
5 - 24 VDC
6.6. Main Board Sockets
Figure 4. Arrangement and description of the main board (215R) sockets

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6.7. Technical Specifications
Housing
Metal
Ingress protection
IP66
Power supply
12 ÷ 24 VDC
Operating temperature
-10 °C ÷ +40 °C
OIML class
III or IIII
Verification units
n≤10 000
Maximum input signal gain
19.5 mV
Maximum voltage per verification unit
1.95 µV
Minimum voltage per verification unit
0.5 µV
Minimum load cell impedance
50 Ω
Maximum load cell impedance
1200 Ω
Load cell excitation voltage
5 VDC
Load cell connection
4 or 6 wires + SHIELD
Platform quantity
1
Multi-range option
Yes
Standard interfaces
RS232
M12 8P connector
3IN
M12 8P connector
3OUT
M12 8P connector
Optional interfaces
RS485
M12 8P connector
Ethernet
RJ45 interface
PROFINET
RJ45 interface
ETHERNET IP
RJ45 interface
PROFIBUS
2 x M12 5P connector
Analog outputs 4-20 mA, 0-10 V
M16 cable gland

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6.8. Models
There are seven models of the MW-01-A mass converter:
MW-01-A1: standard design (RS232 + IN/OUT),
MW-01-A2: standard design + Ethernet,
MW-01-A3: standard design + RS485,
MW-01-A4: standard design + Profibus,
MW-01-A5: standard design + Profinet,
MW-01-A6: standard design + Ethernet IP,
MW-01-A7: standard design + Analog output.
7. INSTALLATION
7.1. Unpacking and Installation
A. Take the mass converter out of the packaging.
B. Connect the weighing platform to the mass converter, next place
the device on a flat and even surface. Keep it away from any sources
of heat.
C. Level the device.
Levelling procedure is to be found in 'TWM1 Scale' user
manual.
7.2. START-UP
Plug the power supply to the mains.
Wait for connection to be established between the mass converter and the
'MwManager' software, read the weighing result.
The procedure of communication establishing and a detailed
description of connection between the scale and the
'MwManager' software is to be found in the software user
manual.
8. INSTALLER INSTRUCTION
The MW-01-A mass converter can be a base component of a load cell scale.
8.1. 6-Wire Load Cell Connection
Connect 6-wire load cell to the main board following the diagram below:

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Figure 5. Connecting 6-wire load cell
Socket
Load cell signal
REMARKS
E
SHIELD
Refer to section 8.3
REF+
SENSE +
JP2 not to be soldered
REF-
SENSE -
JP4 not to be soldered
IN+
OUTPUT+
IN-
OUTPUT-
+EXC
INPUT+
-EXC
INPUT-
8.2. 4-Wire Load Cell Connection
Connect 4-wire load cell to the main board following the diagram below:

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Figure 6. Connecting 4-wire load cell
Socket
Load cell signal
REMARKS
E
SHIELD
Refer to section 8.3
REF+
-
JP2 soldered
REF-
-
JP4 soldered
IN+
OUTPUT+
IN-
OUTPUT-
+EXC
INPUT+
-EXC
INPUT-
8.3. Connecting Load Cell’s Cable Shield
Scale with a mass converter in
a metal housing connected with
a platform via a load-cell signal
cable.
Scale of compact mechanical
design, mass converter in a metal
housing connected with a platform
via an extension arm, etc.
Platform without galvanic
connection of the signal
cable's shield
POINT A
E
Platform with galvanic
connection of the signal
cable's shield
POINT A
POINT A
Point A –electrical connection with the housing.
E–solder pad on A/D converter board.

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9. FACTORY PARAMETERS
In order to be able to edit and save factory parameters to the MW-01-A mass
converter's memory, it is necessary to put a jumper allowing access to the
factory parameters.
9.1. Factory Parameter Access
Plug the power supply of the MW-01-A mass converter to the mains.
Press internal micro switch, SW1:
Figure 7. Factory parameters' access switch
Wait for connection to be established between the mass converter and the
'MwManager' software, go to <Parameters / Factory parameters>
submenu.
Factory parameters are set into groups: Adjustment, Weighing,
Information, Converter. To access a given group, select a respective tab.

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Figure 8. Factory parameters window
9.2. Factory Parameters
NAME
DEFAULT
VALUES
REMARKS
Adjustment
-
-
-
Range
3.009
-
Maximum range + 9e overload.
Range 2 threshold
0
-
Switching point of range II. For single
range balances set 0.
Range 3 threshold
0
-
Switching point of range III. For I-range
or II-range scales set 0value.
Reading unit: range 1
0.001
0,001 50
Rounding of the last digit and position
of a decimal point for weighing range I.
Reading unit: range 2
0.001
0,001 50
Rounding of the last digit and position
of a decimal point for weighing range II.
Reading unit: range 3
0.001
0,001 50
Rounding of the last digit and position
of a decimal point for weighing range III.
Adjustment weight
3
-
Adjustment weight mass.
Adjustment unit
kg
g, kg, lb
Adjustment (calibration) unit.
Verified
NO
YES - NO
Declaring whether the scale is verified
or not. YES - verified scale, NO - non-
verified scale.

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Determine start mass
-
-
Start mass determination (refer to
section 9.4.1).
Determine adjustment
factor
-
-
Adjustment factor determination (read
section 9.4.2).
Set defaults
-
-
Restoring default adjustment parameter
settings.
Linearity
-
-
Section linearity correction (refer to
section 9.5).
Weighing
-
-
-
Autozero range
0.25
0.1 ÷ 5
Autozero range (in divisions).
Stability range
1
0.1 ÷ 5
Stability range in [d] units.
Stability time
0.8
0.1 ÷ 5
Stability time, given in seconds.
Start mass control
1
0, 1, 2
Start mass control:
0–disabled, 1–range: from -5% to
+15% of start mass, 2–range: from -
20% to +20% of start mass.
Information
-
-
-
A/D divisions
-
-
Current quantity of converter divisions.
Adjustment factor
100
-
Adjustment/calibration factor.
Start mass
100
-
Start mass value (in divisions).
Gcor
1
-
Gravitational correction factor (refer to
section 9.6).
Serial number
-
-
Serial number of the mass converter.
Adjustment qty counter
-
-
The quantity of factory parameter
recordings.
Factory start mass
100
-
Start mass value expressed in
converter's divisions, read in the course
of the factory adjustment.
Factory adjustment factor
100
-
Adjustment factor value, determined
during the factory adjustment.
Converter
-
-
-
Converter rate
6,25
6.25 ÷ 1600
Converter rate change.
9.3. Parameter Value Modification
Select a parameter, enter/modify its value.
Press <Save> button, message <Save parameters?> is displayed.
Press <Yes> button to confirm, message <Changes saved> is displayed.
Press <OK> button to confirm.

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9.4. Factory Adjustment
9.4.1. Start Mass Determination
Unload the weighing pan.
Go to <Adjustment> tab, press <Determine start mass> button,
message <Unload the pan> is displayed.
Press <OK> button to confirm, start mass adjustment begins.
Upon completion, message: <Start mass determination completed
successfully> is displayed.
Press <OK> button to confirm.
Press <Save> button, message: <Save parameters?> is displayed.
Press <Yes> button to confirm, message <Changes saved> is displayed.
Press <Yes> button to confirm. Determined start mass gets saved to
converter's memory.
9.4.2. Adjustment Factor Determination
Unload the weighing pan.
Press <Determine adjustment factor> button, message: <Unload the
pan> is displayed.
Press <OK> button to confirm, start mass determination begins.
Upon completion, message: <Load xxx> (where: xxx –declared
adjustment weight mass) is displayed.
Load the weighing pan with weight of the specified mass value and press
<OK> button.
Upon completion, message: <Adjustment factor determination
completed successfully> is displayed.
Press <OK> button to confirm.
Press <Save> button, message: <Save parameters?> is displayed.
Press <Yes> button to confirm, message <Changes saved> is displayed.
Press <Yes> button to confirm. Determined adjustment factor gets saved
to mass converter's memory.

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9.5. Linearity Correction
„Linearity” tab enables access to thresholds and linearity deviations.
Figure 9. Linearity correction window
Where:
Press to zero all threshold values. To zero the deviations and the
thresholds, select <Zero thresholds while zeroing linearity> option.
Press to zero a value of a particular threshold/deviation.
Press to determine deviation of a particular threshold.
Procedure:
Enter linearity threshold values.
Press particular threshold button, , message <Load xxx> (where: xxx
–entered mass value) is displayed.
Load the weighing pan with weight of the declared mass value and press
<OK> button.
Deviation is calculated automatically and entered in the linearity threshold
deviation field.
Determination of deviations for remaining linearity thresholds proceeds
analogously.

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Press <Save> button to save changes, message <Save parameters?>
is displayed.
Press <Yes> button to confirm, message <Changes saved> is displayed.
Press <Yes> button to confirm.
9.6. Gcor
The function of gravitational correction compensates changes of earth gravity
being a result of different latitude. It enables correct calibration of the weighing
device away from the place of use. The gravitational correction value must be
entered with reference to tables prepared by „Radwag Wagi Elektroniczne”
or calculated using the below formula:
kal.
uzyt.
g
g
Gcor 
Correction value ranges between 0.90000 ÷ 1.99999.
If the scale is calibrated at the place of use, then
the gravitational correction value (<g-cor.> parameter) is
1.00000. If the scale is calibrated away from the place of use
(longitudinal change), the value of <g-cor.> parameter must
be corrected.
10. OPTIONAL EXTENSION MODULES
The MW-01-A mass converter can be equipped with additional optional
interface modules: ETHERNET, RS485, PROFIBUS, PROFINET, ETHERNET
IP and analog outputs (4-20 mA or 0-10 V). The modules are installed inside
the device. Optional interfaces are installed interchangeably.
10.1. Exclusions Regarding Installation of Additional Modules
INSTALLED MODULE
EXCLUDED MODULES
ETHERNET
RS485, PROFIBUS, ETHERNET IP, PROFINET
PROFIBUS
RS485, ETHERNET, ETHERNET IP, PROFINET
PROFINET
RS485, PROFIBUS, ETHERNET IP, ETHERNET
RS485
ETHERNET, PROFIBUS, ETHERNET IP, PROFINET

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10.2. RS485 Module
The 309R module, expanding the functionality of the MW-01-A converter by
RS485 interface, is installed on an intermediate board, 385R ver. B.
The module is intended to be mounted inside the MW-01-A. For the 309R
module, an extra M12 8P connector is installed on the housing.
Figure 10. RS485 module
10.2.1. RS485 Pins
RS485
Pin1 –B
Pin2 - NC
Pin3 –A
Pin4 –A
Pin5 –NC
Pin6 - NC
Pin7 –B
Pin8 –NC
10.3. ETHERNET Module
The 570R module expands the functionality of the MW-01-A converter by
Ethernet interface. The module is intended to be mounted inside the MW-01-A.
For the 494R module, a hermetic RJ45 connector is installed on the housing.