RADWAG TWM4 User manual

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MARCH 2021

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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.
Place loads in the centre of the weighing pan.
Load the weighing pan with loads of gross weight which does not exceed
the maximum capacity.
Mind not to leave heavy loads on the weighing pan for longer periods
of time.
Protect the scale against considerable temperature variation, solar and UV
radiation, substances causing chemical reactions.
The scale 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 scale to be decommissioned must be decommissioned in accordance
with valid legal regulations.
If the scale 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
3.1. Cleaning Powder-Coated Components.......................................................................................................6
3.2. Cleaning Stainless Steel Components........................................................................................................6
3.3. Cleaning ABS Components.........................................................................................................................6
4. SERVICE AND REPAIR.....................................................................................................................................6
5. RECYCLING.......................................................................................................................................................7
6. MECHANICAL DESIGN..................................................................................................................................... 7
6.1. 1-Load-Cell Scales......................................................................................................................................7
6.2. Multiple-Load-Cell Scales............................................................................................................................7
6.3. Scales with Load-Cell Modules...................................................................................................................8
6.4. Dimensions..................................................................................................................................................8
6.5. Models.........................................................................................................................................................8
6.6. Connectors ..................................................................................................................................................8
6.6.1. Pin Arrangement...............................................................................................................................9
6.6.2. Diagrams of connection cables........................................................................................................9
6.7. Inputs / Outputs .........................................................................................................................................11
6.7.1. Technical Specifications.................................................................................................................11
6.7.2. Schematic Diagrams ......................................................................................................................11
6.7.3. Input / Output Signals.....................................................................................................................11
7. INSTALLATION................................................................................................................................................ 12
7.1. Unpacking and Installation........................................................................................................................12
7.1.1. 1-Load-Cell Plstform Scales of TWM4-x Series.............................................................................12
7.1.2. Platform Scales of TWM4-x.4.xx.C, TWM4-x.4.xx.H, TWM4-x.4.xx.H/Z Series ..........................12
7.1.3. Ramp Scales of TWM4-x.4N Series ..............................................................................................12
7.2. Levelling: 1-Load-Cell Platform Scales.....................................................................................................13
7.3. Levelling: 4-Load-Cell Platform Scales.....................................................................................................14
7.4. Start-Up .....................................................................................................................................................14
8. MwManager HOME SCREEN .........................................................................................................................15
9. OPERATING THE MENU................................................................................................................................. 16
10. WEIGHING .....................................................................................................................................................16
10.1. Good Weighing Practice: 1-Load-Cell Platform Scales..........................................................................17
10.2. Good Weighing Practice: Custom Scales...............................................................................................17
10.3. Zeroing ....................................................................................................................................................18
10.4. Taring ......................................................................................................................................................19
10.5. Dual Range Devices................................................................................................................................ 19
11. TECHNICAL SPECIFICATIONS....................................................................................................................19
12. ERROR MESSAGES .....................................................................................................................................20

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1. INTENDED USE
The scales are a response to growing market demands for an instrument
offering simplicity of operation and weighing process automated to the
maximum. Due to use of the MW-04 mass converter, the scales are a perfect
solution for numerous industry applications. The converter features a metal
housing, this enables operation in high humidity and vast temperature range,
from -10C to +40C. It communicates with various devices via the following
interfaces: RS232, RS485, Ethernet, Profibus, and Modbus protocol.
The TWM4 scale is equipped with 4 optoisolated inputs and 4 Opto MOS
outputs. It is powered by 100-240VAC mains voltage.
Operation of the TMW4 scale via PC is carried out using ’MwManager’
software. For more information on the ‘MwManager’software read MwManager
manual.
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 scale 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 weighing instrument risk-free, it is necessary to disconnect
the device from the mains.

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With this condition met, uninstall the weighing pan and other detachable
components.
Cleaning the weighing pan while still installed may cause
damage of the measuring system.
3.1. Cleaning Powder-Coated Components
Avoid using cleansers containing any corrosive chemicals, e.g. bleach
(with chlorine). Do not use cleansers containing abrasive substances.
Always remove the dirt using microfiber cloth, do it in order to avoid damage
of protective coating. In the case of a daily maintenance:
1. Remove the dirt using cloth dipped in warm water.
2. For best results, add a little bit of dishwashing detergent.
3.2. Cleaning Stainless Steel Components
Avoid using cleansers containing any corrosive chemicals, e.g. bleach
(with chlorine). Do not use cleansers containing abrasive substances.
Always remove the dirt using microfiber cloth, do it in order to avoid damage
of protective coating. In the case of a daily maintenance:
1. Remove the dirt using cloth dipped in warm water.
2. For best results, add a little bit of dishwashing detergent.
3.3. Cleaning ABS Components
To clean dry surfaces and avoid smudging, use clean non-colouring cloths
made of cellulose or cotton. You can use a solution of water and detergent
(soap, dishwashing detergent, glass cleaner). Gently rub the dirty surface and
let it dry. Repeat the cleaning process if necessary.
In the case of hard to remove contamination, e.g. residues of adhesive, rubber,
resin, polyurethane foam etc., you can use special cleaning agents based on
a mixture of aliphatic hydrocarbons that do not dissolve plastics. Before using
the cleanser for all surfaces we recommend carrying out tests. Do not use
cleansers containing abrasive substances.
4. SERVICE AND REPAIR
In the case of any sign of damage, it is necessary
to disconnect the device form the mains immediately.
The damaged component must be replaced or repaired by
RADWAG service directly.

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In the case of any problems with correct operation of the scale, 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 scale
modification, repair etc., by unauthorized persons, will result
with loss of validity of manufacturer-issued certificates,
declarations and warranty.
5. RECYCLING
TWM4 scales must be recycled, they are not to be treated as a regular
household waste. Scales to be decommissioned must be decommissioned
in accordance with valid legal regulations.
6. MECHANICAL DESIGN
6.1. 1-Load-Cell Scales
1-load-cell TWM4 scale is intended to carry out fast and precise mass
measurement of up to 300 kg loads. Its characteristic feature is a platform with
one load cell only. The platform is equipped with a stainless steel weighing
pan. Depending on a scale model, the cross and base are made of either
stainless steel or powder-coated steel.
6.2. Multiple-Load-Cell Scales
Multiple-load-cell TWM4 scale is intended to carry out fast and precise mass
measurement of large loads.
Its characteristic feature is a platform equipped with numerous load cells,
usually four. The platform, depending on a scale model, is made of stainless
steel or powder-coated steel, it features customized mechanical design suiting
particular customer's requirements (pallet, beam, platform scales).

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6.3. Scales with Load-Cell Modules
TWM4 scale with load cell modules is intended to carry out mass measurement
of silos. Modules are built into construction of ground-fixed silo's support.
In most cases, the scale design includes 3-4 load cell modules. The modules,
depending on the model, are made of stainless or galvanized steel.
6.4. Dimensions
For overall dimensions read product card of a respective scale, the product
cards are to be found on RADWAG website www.radwag.pl.
6.5. Models
TWM4 models:
MODEL
TWM4-1
TWM4-2
TWM4-3
Communication interface
RS232, Ethernet
RS232, RS485
RS232, PROFIBUS
4IN/4OUT module*
1
1
-
RS485 module
-
1
-
PROFIBUS module*
-
-
1
DP-5 platform module
2
2
2
*) - PROFIBUS and 4IN/4OUT modules are installed interchangeably (the device is equipped with
one of them).
6.6. Connectors
MW-04 mass converter connectors

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1
PG11 cable gland for platform 1.
2
PG11 cable gland for platform 2.
3
PG11 cable gland for platform 3.
4
PG11 cable gland for platform 4.
5
M12 8P connector for RS232.
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M16 cable gland for Ethernet/RS485 cable (conditioned by the scale model).
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M16 cable gland for 4IN cable (option: PROFIBUS IN connector).
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M12 cable gland for power cord 230VAC.
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M16 cable gland for 4IN cable (option: PROFIBUS OUT connector).
6.6.1. Pin Arrangement
RS232
Pin2 –RxD
Pin3 –TxD
Pin5 –GND
PROFIBUS IN
(male)
Pin1 –NC
Pin2 –A
Pin3 –NC
Pin4 –B
Pin5 –NC
PROFIBUS OUT
(female)
Pin1 - +5V
Pin2 –A
Pin3 –GND
Pin4 –B
Pin5 –NC
6.6.2. Diagrams of connection cables
'Mass converter' –,computer' cable (PT0020)

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'Mass converter' –'RS485' cable (PT0012)
'Mass converter' –,Ethernet' cable (PT0224)
'Mass converter' –,4IN/4OUT' cable (PT0209)