LAUMAS WDESK-R User manual

ENGLISH ENGLISH ENGLISH ENGLISH
Installation and User Manual
version 1.08
WDESK-R/L
WINOX-R/L/2L
Unload
2014/30/EU
EN55022:2010 EN61000-6-2:2005 EN61000-6-4:2007
SYSTEM IDENTIFICATION

KEY TO SYMBOLS
Below are the symbols used in the manual to draw the reader's attention:
Warning! Risk of electrocution.
Warning! This operation must be performed by skilled workers.
Read the following indications carefully.
Further information.
GUARANTEE
24 months from the delivery document date. The guarantee covers only defected parts and includes the replacement parts and
labour. All shipping and packing costs are paid by the customer. It is possible to have the repair in guarantee on condition that the
returned product has not been transformed, damaged or repaired without authorization. No guarantee is applicable on returned
products without the original label and/or serial number. No guarantee against misuse.
Batteries: Laumas provides 1 year guarantee from the date of delivery note, against material defects or battery manufacturing faults.
Disposal of Waste Equipment by Users in Private Households in the European Union
This symbol on the product or on its packaging indicates that this product must not be disposed of with
your other household waste. It is your responsibility to dispose of your waste equipment by handing it
over to a designated collection point for the recycling of waste electrical and electronic equipment. The
separate collection and recycling of your waste equipment at the time of disposal will help preserve
natural resources and protect human health and the environment. For more information about where you
can drop off your waste equipment for recycling, please contact your local waste disposal Authority or
the equipment retailer.

TABLE OF CONTENTS
USER WARNINGS................................................................................................................. 1
RECOMMENDATIONS FOR CORRECT INSTALLATION OF WEIGHING INSTRUMENTS. 1
RECOMMENDATIONS FOR CORRECT INSTALLATION OF THE LOAD CELLS ............... 1
LOAD CELL INPUT TEST (QUICK ACCESS) .........................................................................3
LOAD CELL TESTING.............................................................................................................3
MAIN SPECIFICATIONS OF THE INSTRUMENT.................................................................. 4
BUFFER BATTERY..................................................................................................................6
AFTER A BLACKOUT ........................................................................................................... 6
TECHNICAL SPECIFICATIONS ............................................................................................ 7
ELECTRICAL CONNECTIONS.............................................................................................. 8
BASIC INFORMATION.............................................................................................................8
WIRING DIAGRAM...................................................................................................................8
CHANGING VOLTAGE 115VAC / 230VAC (WDESK) ..................................................................... 9
KEY TO P, Q, X TYPE CONNECTORS............................................................................................ 9
KEY TO D TYPE CONNECTORS................................................................................................... 10
INTRODUCTION TO THE OPERATION .............................................................................. 12
KEYS, LED AND SYMBOLS FUNCTIONS.......................................................................... 13
MENU MAP .......................................................................................................................... 15
SYSTEM PARAMETERS ....................................................................................................... 15
BATCHING CONSTANTS...................................................................................................... 16
INSTRUMENT COMMISSIONING........................................................................................ 17
PROGRAMMING OF SYSTEM PARAMETERS .................................................................. 18
THEORETICAL CALIBRATION ............................................................................................. 18
TARE WEIGHT ZERO SETTING.................................................................................................... 19
ZERO VALUE MANUAL ENTRY.................................................................................................... 19
REAL CALIBRATION (WITH SAMPLE WEIGHTS)............................................................... 20
FILTER ON THE WEIGHT...................................................................................................... 21
ANTI PEAK..................................................................................................................................... 21
ZERO PARAMETERS............................................................................................................ 22
RESETTABLE WEIGHT SETTING FOR SMALL WEIGHT CHANGES ......................................... 22
AUTOMATIC ZERO SETTING AT POWER-ON............................................................................. 22
ZERO TRACKING .......................................................................................................................... 22
SETTING UNITS OF MEASURE............................................................................................ 23
OUTPUTS AND INPUTS CONFIGURATION ......................................................................... 24
SEMI-AUTOMATIC TARE (NET/GROSS).............................................................................. 25
SEMI-AUTOMATIC ZERO (WEIGHT ZERO-SETTING FOR SMALL VARIATIONS) ............ 25
ANALOG OUTPUT(ONLY FOR INSTRUMENTS WHERE THIS OPTION IS AVAILABLE) .. 26
SERIAL COMMUNICATION SETTING .................................................................................. 27
RS232 SERIAL COMMUNICATION ............................................................................................... 29
RS485 SERIAL COMMUNICATION ............................................................................................... 29
DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER...................... 29

WEIGHT READING VIA SERIAL PORT ................................................................................ 30
WEIMOD MODE ............................................................................................................................. 30
WEIRIP MODE................................................................................................................................ 31
RS485 CONNECTION .................................................................................................................... 32
RS232 CONNECTION .................................................................................................................... 33
ALARM RELAY CLOSURE.................................................................................................... 34
TEST....................................................................................................................................... 34
ENERGY SAVING .................................................................................................................. 35
DATE AND TIME SETTING.................................................................................................... 35
OPERATION SETTINGS........................................................................................................ 36
INFO MENU............................................................................................................................ 36
PROGRAMMING OF BATCHING CONSTANTS ................................................................. 37
MINIMUM WEIGHT................................................................................................................. 37
MAXIMUM WEIGHT ............................................................................................................... 37
SAFE EMPTYING TIME ......................................................................................................... 37
WAITING TIME....................................................................................................................... 37
NO PRODUCT UNLOAD TIME .............................................................................................. 37
FALL....................................................................................................................................... 38
TOLERANCE.......................................................................................................................... 38
SLOW..................................................................................................................................... 39
TAPPING FUNCTION............................................................................................................. 39
CONSUMPTION FOR EACH FORMULA............................................................................... 39
PRINT AT CYCLE END.......................................................................................................... 39
NUMBER OF BATCHING PRINTOUTS ................................................................................. 40
CHECKING PC PRESENCE .................................................................................................. 40
WAITING CONFIRMATION FROM PC (SLAVE) ................................................................... 40
SWITCHING OF THE ALARM/TOLERANCE RELAY ON WEIGHT ...................................... 40
BIG BAG UNLOADING .......................................................................................................... 40
FORMULAS PROGRAMMING............................................................................................. 41
DELETING FORMULAS......................................................................................................... 41
BATCHING........................................................................................................................... 42
AUTOMATIC LOADING ......................................................................................................... 43
BATCHING START FROM EXTERNAL CONTACT .............................................................. 44
DISPLAYING DURING BATCHING ....................................................................................... 44
BATCHING STOP .................................................................................................................. 44
RESUME BATCHING AFTER A POWER CUT...................................................................... 44
CONSUMPTION................................................................................................................... 45
CONSUMPTION DELETION .................................................................................................. 45
ALARMS .............................................................................................................................. 46
PRINTING EXAMPLES........................................................................................................ 48
RESERVED FOR THE INSTALLER..................................................................................... 50
MENU LOCKING.................................................................................................................... 50
MENU UNLOCKING............................................................................................................... 50

TEMPORARY MENU UNLOCKING ....................................................................................... 50
SETTING UNLOCK PASSWORD .......................................................................................... 50
DATA DELETION AND PROGRAM SELECTION ................................................................. 50
KEYPAD OR DISPLAY LOCKING......................................................................................... 52
DECLARATION OF CONFORMITY - EU............................................................................. 53

- 1 -
USER WARNINGS
RECOMMENDATIONS FOR THE PROPER USE OF WEIGHING INSTRUMENT
-Keep away from heat sources and direct sunlight
-Repair the instrument from rain (except special IP versions)
-Do not wash with water jets (except special IP versions)
-Do not dip in water
-Do not spill liquid on the instrument
-Do not use solvents to clean the instrument
-Do not install in areas subject to explosion hazard (except special Atex versions)
RECOMMENDATIONS FOR CORRECT INSTALLATION OF WEIGHING INSTRUMENTS
The terminals indicated on the instrument’s wiring diagram to be connected to earth must
have the same potential as the weighed structure (same earthing pit or earthing system). If
you are unable to ensure this condition, connect with an earthing wire the terminals of the
instrument (including the terminal –SUPPLY) to the weighed structure.
The cell cable must be individually led to its panel input and not share a conduit with other cables;
connect it directly to the instrument terminal strip without breaking its route with support terminal
strips.
Use “RC” filters on the instrument-driven solenoid valve and remote control switch coils.
Avoid inverters in the instrument panel; if inevitable, use special filters for the inverters and separate
them with sheet metal partitions.
The panel installer must provide electric protections for the instruments (fuses, door lock switch
etc.).
It is advisable to leave the equipment always switched on to prevent the formation of condensation.
MAXIMUM CABLE LENGTHS
-RS485: 1000 metres with AWG24, shielded and twisted cables
-RS232: 15 metres for baud rates up to 19200
-Analog current output: up to 500 metres with 0.5 mm2 cable
-Analog voltage output: up to 300 metres with 0.5 mm2cable
RECOMMENDATIONS FOR CORRECT INSTALLATION OF THE LOAD CELLS
INSTALLING LOAD CELLS: The load cells must be placed on rigid, stable in-line structures; it
is important to use the mounting modules for load cells to compensate for misalignment of the
support surfaces.
PROTECTION OF THE CELL CABLE: Use water-proof sheaths and joints in order to protect the
cables of the cells.
MECHANICAL RESTRAINTS (pipes, etc.): When pipes are present, we recommend the use of
hoses and flexible couplings with open mouthpieces with rubber protection; in case of hard pipes,
place the pipe support or anchor bracket as far as possible from the weighed structure (at a distance
at least 40 times the diameter of the pipe).

- 2 -
CONNECTING SEVERAL CELLS IN PARALLEL: Connect several cells in parallel by using - if
necessary - a watertight junction box with terminal box. The cell connection extension cables must
be shielded, led individually into their piping or conduit and laid as far as possible from the power
cables (in case of 4-wire connections, use cables with 4x1 mm2minimum cross-section).
WELDING: Avoid welding with the load cells already installed. If this cannot be avoided, place the
welder ground clamp close to the required welding point to prevent sending current through the load
cell body.
WINDY CONDITIONS - KNOCKS - VIBRATIONS: The use of weigh modules is strongly
recommended for all load cells to compensate for misalignment of the support surfaces. The system
designer must ensure that the plant is protected against lateral shifting and tipping relating to:
shocks and vibration; windy conditions; seismic conditions in the installation setting; stability of the
support structure.
EARTHING THE WEIGHED STRUCTURE: By means of a copper wire with suitable cross-section,
connect the cell upper support plate with the lower support plate, then connect all the lower plates to
a single earthing system. Electrostatic charges accumulated because of the product rubbing against
the pipes and the weighed container walls are discharged to the ground without going through or
damaging the load cells. Failure to implement a proper earthing system might not affect the
operation of the weighing system; this, however, does not rule out the possibility that the cells and
connected instrument may become damaged in the future. It is forbidden to ensure earthing system
continuity by using metal parts contained in the weighed structure.
FAILURE TO FOLLOW THE INSTALLATION RECOMMENDATIONS WILL BE CONSIDERED
A MISUSE OF THE EQUIPMENT
OK OK
NO NO
NO
OK

- 3 -
LOAD CELL INPUT TEST (QUICK ACCESS)
From the weight display, press for 3 seconds; the response signal of the load cells is displayed,
expressed in mV with four decimals.
LOAD CELL TESTING
Load cell resistance measurement (use a digital multimeter):
-Disconnect the load cells from the instrument and check that there is no moisture in the cell
junction box caused by condensation or water infiltration. If so, drain the system or replace it if
necessary.
-The value between the positive signal wire and the negative signal wire must be equal or similar
to the one indicated in the load cell data sheet (output resistance).
-The value between the positive excitation wire and the negative excitation wire must be equal or
similar to the one indicated in the load cell data sheet (input resistance).
-The insulation value between the shield and any other cell wire and between any other cell wire
and the body of the load cell must be higher than 20 Mohm.
Load cell voltage measurement (use a digital multimeter):
-Take out the load cell to be tested from underneath the container, or alternatively, lift the
container support.
-Make sure that the excitation of two wires of the load cell connected to the instrument (or
amplifier) is 5 VDC ±3%.
-Measure the response signal between the positive and the negative signal wires by directly
connecting them to the tester, and make sure that it is comprised between 0 and 0.5 mV.
-Apply load to the cell and make sure that there is a signal increment.
IF ONE OF THE ABOVE CONDITIONS IS NOT MET, PLEASE CONTACT THE TECHNICAL
ASSISTANCE SERVICE.


3 s

- 4 -
MAIN SPECIFICATIONS OF THE INSTRUMENT
Indicator with 6-wire load cell input installable on table, panel front, wall or column; 6-key membrane
keypad with buzzer, real-time clock/calendar with buffer battery.
Two serial ports (RS485 and RS232) for connection to: PC/PLC up to 32 instruments (max 99 with
line repeaters) by ASCII Laumas or ModBus R.T.U. protocol, remote display, printer. Optional:
integrated Profibus DP, DeviceNet, CANopen, Profinet IO, Ethernet/IP, Ethernet TCP/IP,
Modbus/TCP output.
Instruments with P, D type connectors: included switching power supply plug 24 V 450 mA, input
100÷240 VAC, 3 meters long cable.
The instrument can be connected to a CLM serie intelligent junction box or to a weight transmitter.
Display:
Model
Display
Digit height
LED or signalling
symbols
WDESK-R
WINOX-R
Red LED, 6 digits, 7 segments,
semi-alphanumeric
20 mm
16
WDESK-L
WINOX-L
Backlit LCD, 6 digits, 7 segments,
semi-alphanumeric
20 mm
max 46
WINOX-2L
Large backlit LCD, 6 digits, 7 segments,
semi-alphanumeric
40 mm
max 46
Dimensions:
WDESK
Version
Max. encumbrance
Drilling
P- PG9 cable gland
IP67 protection rating
Power supply included
122x226x164 mm
(connectors included)
96x186 mm
Q- Removable terminal strip
(panel front)
Front panel IP67 protection
rating
122x226x152 mm
(connectors included)
92x186 mm
D–D-Sub tray
IP40 protection rating
Power supply included
122x226x189 mm
(connectors included)
96x186 mm

- 5 -
X- Atex cable gland
IP67 Atex II3GD version
(areas 2 -22)
IP67 protection rating
122x226x164 mm
(connectors included)
96x186 mm
Wall installation with bracket
(can also be installed on table)
122x230x250 mm ca.
(bracket included)
WINOX
Type of connectors
Max. encumbrance
Drilling
P- PG9 cable gland
IP68 protection rating
Power supply included
206x286x108 mm
(connectors included)
160x248 mm
Q- Removable terminal strip
(panel front)
Front panel IP68 protection
rating
206x286x96 mm
(connectors included)
160x248 mm
D–D-Sub tray
(table)
IP40 protection rating
Power supply included
206x286x85 mm
(connectors included)
X- Atex cable gland
IP68 Atex II3GD version
(areas 2 -22)
IP68 protection rating
206x286x108 mm
(connectors included)
160x248 mm
Wall installation with bracket
(can also be installed on table)
206x286x187 mm ca.
(bracket included)