Load Cell Systems WDESK-R User manual

ENGLISH ENGLISH ENGLISH ENGLISH
Installation and User Manual
version 1.10
WDESK-R/L
WINOX-R/L/2L
3/6/14 Products

SYMBOLS
Here are the symbols used in the manual to draw the reader's attention:
Caution! Risk of electric shock.
Caution! This operation must be performed by skilled personnel.
Pay particular attention to the following instructions.
Further information.
WARRANTY
24 months from the date of the delivery note. Warranty covers only failures of defective components (due to construction
defects or defects in materials) and includes replacement or repair of the components and related labor costs.
Warranty is automatically forfeited in the event of:
- tampering, deletion, removal of the identification label and/or serial number of the product
- misuse, transformation, alteration, repair of products not carried out by Laumas personnel
Laumas provides a 1-year warranty from the date of the delivery note on defects in material or manufacture of the battery.
GUIDELINES FOR PROPER DISPOSAL
This symbol on the product or packaging indicates that:
-This is electrical/electronic equipment and cannot be disposed of as municipal solid waste, but must be delivered
to a recycling center
-Improper use or disposal can pollute the environment or damage human health
-Non-compliance with these guidelines will be penalized in accordance with the regulations in force in the country
of destination
-It is recommended to dispose of the packing and packaging as required by local regulations

TABLE OF CONTENTS
USER WARNINGS....................................................................................................................1
RECOMMENDATIONS FOR CORRECT INSTALLATION OF WEIGHING INSTRUMENTS .1
RECOMMENDATIONS FOR CORRECT INSTALLATION OF THE LOAD CELLS................2
LOAD CELL INPUT TEST (QUICK ACCESS) .......................................................................... 4
LOAD CELL TESTING .............................................................................................................. 4
MAIN SPECIFICATIONS OF THE INSTRUMENT ...................................................................5
BUFFER BATTERY................................................................................................................... 7
AFTER A BLACKOUT ..............................................................................................................7
TECHNICAL SPECIFICATIONS...............................................................................................8
ELECTRICAL CONNECTIONS ................................................................................................9
BASIC INFORMATION.............................................................................................................. 9
WIRING DIAGRAM: 3 PRODUCTS........................................................................................... 9
WIRING DIAGRAM: 6 PRODUCTS......................................................................................... 10
WIRING DIAGRAM: 14 PRODUCTS....................................................................................... 11
CHANGING VOLTAGE 115VAC / 230VAC (WDESK)......................................................................12
KEY TO P, Q, X TYPE CONNECTORS.............................................................................................12
KEY TO D TYPE CONNECTORS ......................................................................................................13
KEY TO “RELE6PROD” MODULE TERMINALS .............................................................................16
KEY TO “RELE14PROD” MODULE TERMINALS ...........................................................................16
INTRODUCTION TO THE OPERATION.................................................................................17
KEYS, LED AND SYMBOLS FUNCTIONS ............................................................................18
MENU MAP .............................................................................................................................21
SYSTEM PARAMETERS ........................................................................................................ 21
BATCHING CONSTANTS ....................................................................................................... 22
INSTRUMENT COMMISSIONING ..........................................................................................23
PROGRAMMING OF SYSTEM PARAMETERS ....................................................................24
THEORETICAL CALIBRATION .............................................................................................. 24
TARE WEIGHT ZERO SETTING .......................................................................................................25
ZERO VALUE MANUAL ENTRY .......................................................................................................25
REAL CALIBRATION (WITH SAMPLE WEIGHTS)................................................................ 25
FILTER ON THE WEIGHT....................................................................................................... 26
ANTI PEAK .........................................................................................................................................27
ZERO PARAMETERS ............................................................................................................. 27
RESETTABLE WEIGHT SETTING FOR SMALL WEIGHT CHANGES...........................................27
AUTOMATIC ZERO SETTING AT POWER-ON................................................................................27
ZERO TRACKING...............................................................................................................................28
SETTING UNITS OF MEASURE ............................................................................................. 28
OUTPUTS AND INPUTS CONFIGURATION .......................................................................... 28
SEMI-AUTOMATIC TARE (NET/GROSS)............................................................................... 29
PRESET TARE (SUBTRACTIVE TARE DEVICE) .................................................................. 30
SEMI-AUTOMATIC ZERO (WEIGHT ZERO-SETTING FOR SMALL VARIATIONS) ............ 30

ANALOG OUTPUT(ONLY FOR INSTRUMENTS WHERE THIS OPTION IS AVAILABLE) .. 31
SERIAL COMMUNICATION SETTING ................................................................................... 33
RS232 SERIAL COMMUNICATION...................................................................................................34
RS485 SERIAL COMMUNICATION...................................................................................................34
DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER.......................34
WEIGHT READING VIA SERIAL PORT ................................................................................. 35
WEIMOD MODE..................................................................................................................................35
WEIRIP MODE ....................................................................................................................................36
RS485 CONNECTION ........................................................................................................................37
RS232 CONNECTION ........................................................................................................................38
ALARM RELAY CLOSURE..................................................................................................... 38
TEST ........................................................................................................................................ 39
ENERGY SAVING ................................................................................................................... 40
DATE AND TIME SETTING..................................................................................................... 40
OPERATION SETTINGS ......................................................................................................... 40
INFO MENU ............................................................................................................................. 41
PROGRAMMING OF BATCHING CONSTANTS ...................................................................42
MINIMUM WEIGHT.................................................................................................................. 42
MAXIMUM WEIGHT ................................................................................................................ 42
SAFE EMPTYING TIME .......................................................................................................... 42
WAITING TIME ........................................................................................................................ 42
NO PRODUCT LOAD TIME..................................................................................................... 43
NO PRODUCT UNLOAD TIME ............................................................................................... 43
FALL ........................................................................................................................................ 43
TOLERANCE ........................................................................................................................... 43
SLOW....................................................................................................................................... 44
TAPPING FUNCTION.............................................................................................................. 44
AUTOTARE ............................................................................................................................. 44
CONSUMPTION FOR EACH PRODUCT................................................................................ 44
PRINT AT CYCLE END ........................................................................................................... 45
NUMBER OF BATCHING PRINTOUTS .................................................................................. 45
CHECKING PC PRESENCE.................................................................................................... 45
WAITING CONFIRMATION FROM PC (SLAVE) .................................................................... 45
SWITCHING OF THE ALARM/SLOW RELAY ON WEIGHT .................................................. 45
FORMULAS PROGRAMMING ...............................................................................................46
DELETING FORMULAS.......................................................................................................... 46
BATCHING..............................................................................................................................47
BATCHING START FROM EXTERNAL CONTACT ............................................................... 48
BATCHING START FOR SINGLE PRODUCT WITH AUTOMATIC STOP ............................ 48
BATCHING START FOR SINGLE PRODUCT WITH STOP BY KEYBOARD ....................... 49
UNLOADING START WITH AUTOMATIC STOP ................................................................... 49
DISPLAYING DURING BATCHING ........................................................................................ 49
BATCHING STOP.................................................................................................................... 49

RESUME BATCHING AFTER A POWER CUT....................................................................... 50
CONSUMPTION......................................................................................................................50
CONSUMPTION DELETION ................................................................................................... 50
ALARMS..................................................................................................................................51
PRINTING EXAMPLES...........................................................................................................54
RESERVED FOR THE INSTALLER.......................................................................................56
MENU LOCKING ..................................................................................................................... 56
MENU UNLOCKING ................................................................................................................ 56
TEMPORARY MENU UNLOCKING ........................................................................................ 56
SETTING UNLOCK PASSWORD ........................................................................................... 56
DATA DELETION AND PROGRAM SELECTION .................................................................. 56
KEYPAD OR DISPLAY LOCKING.......................................................................................... 58
DECLARATION OF CONFORMITY - EU ...............................................................................59
DECLARATION OF CONFORMITY - UKCA..........................................................................60

- 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

- 2 -
RECOMMENDATIONS FOR CORRECT INSTALLATION OF THE LOAD CELLS
SIZING OF LOAD CELLS CAPACITY
For safety reasons, in case of static weighing, it is advisable to use the load cells at a maximum of
70-80% of its nominal capacity (assuming that the load is uniformly distributed over the entire
weighed structure); depending on the handling mode of the load to weigh, consider to further reduce
the % of load with respect to the nominal capacity (ex.: forklifts handling, bridge cranes, etc.).
In case of weighing with dynamic loads, the installer has to estimate the thrust speed, the
acceleration, the frequency, etc.
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.
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).
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).
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.

- 3 -
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

- 4 -
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

- 5 -
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.
6 PRODUCTS versions are supplied complete with a RELE6PROD 8-relay module (80x160x60 mm,
available with 12/24 VDC or 115 VAC or 230 VAC power supply).
14 PRODUCTS versions are supplied complete with a RELE6PROD 8-relay module
(80x160x60 mm, available with 12/24 VDC or 115 VAC or 230 VAC power supply) and a
RELE14PROD 8-relay module (80x120x60 mm).
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- M16x1.5 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

- 6 -
D–D-Sub connector
IP40 protection rating
Front panel IP67 protection rating
Power supply included
122x226x189 mm
(connectors included)
96x186 mm
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- M16x1.5 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 connector
(table)
IP40 protection rating
Front panel IP68 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

- 7 -
Wall installation with bracket
(can also be installed on table)
206x286x187 mm ca.
(bracket included)
BUFFER BATTERY
The instrument is equipped with an internal battery that allows to keep active the internal clock even
in the event of power failure.
At the first start and after long periods of inactivity, leave the instrument on for at least 12
hours to fully charge the battery.
AFTER A BLACKOUT
After a blackout the instrument DOES NOT come on again automatically, you have to press ON.
To guarantee an automatic restart after a blackout, disable the ON key as follows:
-disconnect power supply and open the instrument;
-identify flat connectors coming from the keypad on the main board;
-extract the 4-pole connector;
-short-circuit the following pins using the unused jumper inside the instrument:
▫WDESK: the two pins further in compared to the main board (see picture to the left);
▫WINOX: the two outer pins compared to the main board (see picture to the right);
-connect the 4-pole flat to the two pins still free complying with initial orientation.
WDESK
WINOX

- 8 -
TECHNICAL SPECIFICATIONS
POWER SUPPLY and CONSUMPTION (VDC)
12/24 VDC ±10%; 6 W (standard)
POWER SUPPLY and CONSUMPTION (VAC)
115/230 VAC; 50-60 Hz; 6 VA
(optional only for WDESK-P, WINOX-P)
NO. OF LOAD CELLS IN PARALLEL and SUPPLY
max 8 (350 ohm); 5 VDC / 120 mA
LINEARITY / ANALOG OUTPUT LINEARITY
< 0.01% F.S.; < 0.01% F.S.
THERMAL DRIFT / ANALOG OUTPUT THERMAL DRIFT
< 0.0005% F.S./°C; < 0.003% F.S./°C
A/D CONVERTER
24 bit (16000000 points)
MAX DIVISIONS
(with measurement range: ±10 mV = sens. 2 mV/V)
±999999
MEASUREMENT RANGE
±39 mV
MAX SENSITIVITY OF USABLE LOAD CELLS
±7 mV/V
MAX CONVERSIONS PER SECOND
300 conversions/second
DISPLAY RANGE
±999999
NO. OF DECIMALS / DISPLAY INCREMENTS
0÷4 / x 1 x 2 x 5 x 10 x 20 x 50 x 100
DIGITAL FILTER / READINGS PER SECOND
10 levels / 5÷300 Hz
RELAY OUTPUTS
N. 5 - max 115 VAC; 150 mA
(N. 4 –analog output version)
DIGITAL INPUTS
N. 3 - optoisolated 5 - 24 VDC PNP
(N. 2 –analog output version)
SERIAL PORTS
RS485, RS232
BAUD RATE
2400, 4800, 9600, 19200, 38400, 115200
HUMIDITY (non condensing)
85%
STORAGE TEMPERATURE
-30°C +80°C
WORKING TEMPERATURE
-20°C +60°C
OPTOISOLATED ANALOG OUTPUT (OPTIONAL)
16 bit - 65535 divisions
0÷20 mA; 4÷20 mA (max 300 ohm);
0÷10 V; 0÷5 V; ±10 V; ±5 V (min 10 kohm)
RELAY OUTPUTS
N. 5 - max 30 VAC, 60 VDC; 150 mA
(N. 4 –analog output version)
WORKING TEMPERATURE
-20°C +50°C
Equipment to be powered by 12-24 VDC LPS or Class 2 power source.
RELE6PROD TECHNICAL SPECIFICATIONS
POWER SUPPLY and CONSUMPTION (VDC)
12/24 VDC (standard) ±10%; 2 W
POWER SUPPLY and CONSUMPTION (VAC)
115/230 VAC (optional); 50-60 Hz; 1.5 VA
RELAY LOGIC OUTPUTS
N. 8 - max 115 VAC; 2 A
HUMIDITY (non condensing)
85%
STORAGE TEMPERATURE
-30°C +80°C
WORKING TEMPERATURE
-20°C +60°C

- 9 -
ELECTRICAL CONNECTIONS
BASIC INFORMATION
-It is recommended that the power supply negative pole be grounded (WDESK-D, WINOX:
connect the earthing system to the dedicated external terminal ).
-It is possible to supply up to eight 350 ohm load cells or sixteen 700 ohm load cells.
-For 4-wire load cells, make a jumper between EX- and REF- and between EX+ and REF+.
-Connect terminal “– SUPPLY” to the RS485 common of the connected instruments in the event
that these receive alternating current input or that they have an optoisolated RS485.
-In case of an RS485 network with several devices it is recommended to activate the 120 ohm
termination resistance on the two devices located at the ends of the network, as described in
section RS485 SERIAL CONNECTION.
-Option E/EC: selects the first 12 formulas.
WIRING DIAGRAM: 3 PRODUCTS
)The IN3 input can have the following
functions:
-APPROVAL (default)
-SEMI-AUTOMATIC ZERO
-NET/GROSS WEIGHT
(1) If the analog output is present (ANALOG OUTPUT
OPTION) the following are no longer available:
-IN3 input
-SLOW/ALARM output
-E/EC options
WARNING: connect power supply specified on the plate found on the back of the instrument.
In 115 V and 230 V versions, terminals “+ SUPPLY” and “– SUPPLY” generate continuous voltage
at 24 VDC only to be used as power supply for instrument inputs.
(1)ANALOGOUTPUTOPTION
12
EC OPTION
3
21
7
68
5
410
11
9
8
E OPTION
1 32 4 5 671411910 1312 1615
4
to instrument
Current output:
max load 300 ohm
Voltage output:
min load 10 kohm
Buttons not included in the supply
1 2 3 4 5 678 9 10 1112 13 14 15 16 17 18 19 20 2122 23 24
12-24 VDC
supply
RS485
IN 3
INPUT
supply
5-24 VDC
to INCOMMMON
(R5) SLOW/ALARM
to E-EC OPT.
-
+
SUPPLY +
SUPPLY -
TXD
RXD
(R1) PROD. 1
OUT COMMON
STOP
EXCITATION -
REF./SENSE +
IN COMMON
EXCITATION +
REF./SENSE -
SIGNAL -
SIGNAL +
RS232
LOAD CELLS
6-WIRE load cell
connection
INPUTS
supply
5-24 VDC
OUTPUTS
max 115 VAC
150 mA
2 3 4
+ 0-10 VDC
- COMMON
+ 0-20 4-20 mA
19 20 2122 23 24
EXCIT. -
EXCIT. +
SIGNAL -
SIGNAL +
4-WIRE load cell connection
8
84
+ -
(R2) PROD. 2
(R3) PROD. 3
(R4) CYCLE END
WARNING!
115 V / 230 V OPTIONS
(WDESK-P / WINOX-P)
L115/230
VAC
N
7SUPPLY
OUT + 24 VDC
OUTPUT
8SUPPLY
OUT -

- 10 -
WIRING DIAGRAM: 6 PRODUCTS
RELE6PROD24V
RELAY
17
IN COM
PROD.5 NO PROD.4 COM PROD.4 NO PROD.3 COM PROD.3 NO PROD.2 COM PROD.2 NO PROD.1 COM
PROD.1 NO
IN4 IN1 IN2 IN3
8
L3 N 4 567
RELAY
RELAY
RELAY
131091211 15
14 16
P2
P1
POWER
P4
P3
PROD.6 COM
CYCLE END COM CYCLE END NO
PROD.6 NO PROD.5 COM
RELAY RELAY RELAY
201918 2221 23 24
FC
P6
P5 LE
RELAY
12-24
VDC -
+
SLOW COM SLOW NO
1 2 3 4 5 678 9 10 1112 13 14 15 16 17 18 19 20 2122 23 24
12-24 VDC
supply
RS485
IN 3 to INCOMMMON
ALARM (5 VDC OUT) R5
to E-EC OPT.
-
+
SUPPLY +
SUPPLY -
TXD
RXD
R1
OUT COMMON (5 VDC)
STOP
EXCITATION -
REF./SENSE +
IN COMMON
EXCITATION +
REF./SENSE -
SIGNAL -
SIGNAL +
RS232
LOAD CELLS
6-WIRE load cell
connection
INPUTS
supply
5-24 VDC
+-
R2
R3
R4
RELE6PROD MODULE
R1 R2 R3 R4 OUTPUTS
III0PROD. 1
0II0PROD. 2
I0I0PROD. 3
00I0PROD. 4
II00PROD. 5
0I00PROD. 6
I000CYCLE END
XXXISLOW
(1)ANALOGOUTPUTOPTION
12
EC OPTION
3
21
7
68
5
410
11
9
8
E OPTION
132 4 5 6714
11
910 1312 1615
4
to instrument
Current output:
max load 300 ohm
Voltage output:
min load 10 kohm
Buttons not included in the supply
2 3 4
+ 0-10 VDC
- COMMON
+ 0-20 4-20 mA
19 20 2122 23 24
EXCIT. -
EXCIT. +
SIGNAL -
SIGNAL +
4-WIRE load cell connection
8 84
INPUT supply
5-24 VDC
L115/230
VAC
N
7SUPPLY
OUT + 24 VDC
OUTPUT
8SUPPLY
OUT -
RELE6PROD -115V/-230V
WARNING! 115 V / 230 V OPTIONS
(WDESK-P / WINOX-P)
115/230
VAC
L N 3
L N
WEIGHT INDICATOR
) The IN3 input can have the following functions:
-APPROVAL (default) -SEMI-AUTOMATIC ZERO -NET/GROSS WEIGHT
(1) If the analog output is present (ANALOG OUTPUT OPTION) the following are
no longer available:
-IN3 input -ALARM output -E/EC options
WARNING: connect power supply specified on the plate found on the back of the instrument. In 115 V and 230 V versions, terminals “+ SUPPLY” and “–SUPPLY” generate continuous voltage at 24 VDC only to be used as power supply for instrument inputs.

- 11 -
WIRING DIAGRAM: 14 PRODUCTS
RELE6PROD24V
RELAY
17
IN COM
PROD.5 NO PROD.4 COM PROD.4 NO PROD.3 COM PROD.3 NO PROD.2 COM PROD.2 NO PROD.1 COM
PROD.1 NO
IN4 IN1 IN2 IN3
8
L3 N 4 5 6 7
RELAY
RELAY
RELAY
131091211 15
14 16
P2
P1
POWER
P4
P3
PROD.6 COM
CYCLE END COM CYCLE END NO
PROD.6 NO PROD.5 COM
RELAY RELAY RELAY
201918 2221 23 24
FC
P6
P5 LE
P11
9
PROD.11 NO PROD.10 COM PROD.10 NO PROD.9 COM PROD.9 NO PROD.8 COM PROD.8 NO PROD.7 COM
PROD.7 NO
21 3457
6 8
P8
P7 P10 P9
PROD.12 COM
PROD.14 COM PROD.14 NO PROD.13 COM PROD.13 NO PROD.12 NO PROD.11 COM
10 11 12 14 13 15 16
P13
P12
POWER
P14
RELAY
RELAY
RELAYRELAY
RELAY
RELAY
RELAY
RELAY
RELAY
RELE6PROD MODULE
R1 R2 R3 R4 OUTPUTS
III0PROD. 1
0II 0 PROD. 2
I0I0PROD. 3
00I0PROD. 4
II 0 0PROD. 5
0I 0 0PROD. 6
I000CYCLE END
RELE14PROD MODULE
R1 R2 R3 R4 OUTPUTS
000IPROD. 7
I 0 0IPROD. 8
0I 0 IPROD. 9
II0IPROD. 10
00IIPROD. 11
I 0 IIPROD. 12
0IIIPROD. 13
IIIIPROD. 14
12-24
VDC -
+RELE14PROD
1 2 3 4 5 678 9 10 1112 13 14 15 16 17 18 19 20 2122 23 24
12-24 VDC
supply
RS485
IN 3 to INCOMMMON
SLOW / ALARM (5 VDC OUT) R5
to E-EC OPT.
-
+
SUPPLY +
SUPPLY -
TXD
RXD
R1
OUT COMMON (5 VDC)
STOP
EXCITATION -
REF./SENSE +
IN COMMON
EXCITATION +
REF./SENSE -
SIGNAL -
SIGNAL +
RS232
LOAD CELLS
6-WIRE load cell
connection
INPUTS
supply
5-24 VDC
+-
R2
R3
R4
INPUT supply
5-24 VDC
12
EC OPTION
3
21
7
68
5
410
11
9
8
E OPTION
132 4 5 6 7 14
11
910 1312 1615
4
to instrument
Buttons not included in the supply
8 84
(1)ANALOG OUTPUTOPTION
Current output:
max load 300 ohm
Voltage output:
min load 10 kohm
2 3 4
+ 0-10 VDC
- COMMON
+ 0-20 4-20 mA
19 20 2122 23 24
EXCIT. -
EXCIT. +
SIGNAL -
SIGNAL +
4-WIRE load cell connection
L115/230
VAC
N
7SUPPLY
OUT + 24 VDC
OUTPUT
8SUPPLY
OUT -
RELE6PROD -115V/-230V
WARNING! 115 V / 230 V OPTIONS
(WDESK-P / WINOX-P)
115/230
VAC
L N 3
L N
WEIGHT INDICATOR
) The IN3 input can have the following functions:
-APPROVAL (default) -SEMI-AUTOMATIC ZERO -NET/GROSS WEIGHT
(1) If the analog output is present (ANALOG OUTPUT
OPTION) the following are no longer available:
-IN3 input -SLOW/ALARM output -E/EC options
WARNING: connect power supply specified on the plate found on the back of the instrument. In 115 V and 230 V versions, terminals “+ SUPPLY” and “–SUPPLY” generate continuous voltage at 24 VDC only to be used as power supply for instrument inputs.

- 12 -
CHANGING VOLTAGE 115VAC / 230VAC (WDESK)
Access instrument board by removing the six bottom screws and work on the welding side: join the
red points using a stiff wire.
KEY TO P, Q, X TYPE CONNECTORS
Terminal
Signal
Terminal
Signal
1
14
OUTPUT No. 4:
- CYCLE END (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
2
INPUT No. 3: selectable
(+VDC min 5 V max 24 V)
otherwise:
+ANALOG OUTPUT
(0÷20 o 4÷20 mA)
15
OUTPUT COMMON
- connect to RELE6PROD module
(6/14 PRODUCTS version)
3
OUTPUT No. 5:
- SLOW/ALARM (3/14 PROD.
versions)
- ALARM (6 PROD. version)
otherwise:
+ANALOG OUTPUT (0÷10 V)
6/14 PRODUCTS versions:
output No. 5 supplies +5 VDC
voltage only if the relay is closed.
16
INPUT No. 1: START
(+VDC min 5 V max 24 V)
4
E/EC OPTION
otherwise:
-ANALOG OUTPUT COMMON
17
INPUT No. 2: STOP
(+VDC min 5 V max 24 V)
5
RS485: -
18
INPUT COMMON (-VDC 0 V)
6
RS485: +
19
-LOAD CELL EXCITATION (-Exc)
LOAD CELL SHIELD
7
+SUPPLY (12/24 VDC)
115/230 VAC optional version:
+OUTPUT (24 VDC)*
20
+LOAD CELL EXCITATION (+Exc)
230 VAC
230
115
115
115 VAC
230
115
115

- 13 -
8
-SUPPLY (12/24 VDC)
RS232, RS485: SHIELD, GND
E/EC OPTION: GND
115/230 VAC optional version:
-OUTPUT (24 VDC)*
RS232, RS485: SHIELD, GND
E/EC OPTION: GND
21
+LOAD CELL REF/SENSE
9
RS232: TXD
22
-LOAD CELL REF/SENSE
10
RS232: RXD
23
-LOAD CELL SIGNAL (-Sig)
11
OUTPUT No. 1:
- PRODUCT 1 (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
24
+LOAD CELL SIGNAL (+Sig)
12
OUTPUT No. 2:
- PRODUCT 2 (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
L
PHASE (115/230 VAC optional ver.)
13
OUTPUT No. 3:
- PRODUCT 3 (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
N
NEUTRAL (115/230 VAC optional ver.)
GROUND (115/230 VAC optional ver.)
*) Use only as power supply for instrument inputs.
To access the terminal strip on the WDESK instruments with cable glands, you need to
remove the bottom of the instrument unscrewing the six screws.
KEY TO D TYPE CONNECTORS
Connector
Pin
Signal
Internal
terminal
Internal
colour
P1
Power supply
+SUPPLY (12/24 VDC)
7
red
-SUPPLY (12/24 VDC)
8
black
D1
Female
Load cell
1
-LOAD CELL EXCITATION (-Exc)
19
black
2
-LOAD CELL REF/SENSE
22
yellow
3
4
5
LOAD CELL SHIELD
19
6
+LOAD CELL EXCITATION (+Exc)
20
red
7
+LOAD CELL REF/SENSE
21
blue
8
-LOAD CELL SIGNAL (-Sig)
23
white
9
+LOAD CELL SIGNAL (+Sig)
24
green

- 14 -
D3
Male
I/O
Analog output
E/EC option
1
OUTPUT No.1 (max 24 V):
- PRODUCT 1 (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
11
yellow
2
OUTPUT No.2 (max 24 V):
- PRODUCT 2 (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
12
blue
3
OUTPUT No.3 (max 24 V):
- PRODUCT 3 (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
13
white
4
OUTPUT No.4 (max 24 V):
- CYCLE END (3 PROD. version)
- connect to RELE6PROD module
(6/14 PROD. versions)
14
green
5
OUTPUT No.5 (max 24 V):
- SLOW/ALARM (3/14 PROD. version)
- ALARM (6 PROD. version)
otherwise:
+ANALOG OUTPUT (0-10 V)
6/14 PRODUCTS versions:
output No. 5 supplies +5 VDC voltage
only if the relay is closed.
3
orange
6
OUTPUT COMMON (max 24 V)
- connect to RELE6PROD module
(6/14 PRODUCTS version)
15
purple
7
INPUT No.1: START (+VDC min 5 V max 24 V)
16
grey
8
INPUT No.2: STOP (+VDC min 5 V max 24 V)
17
pink
9
INPUT No. 3: selectable
(+VDC min 5 V max 24 V)
otherwise:
+ANALOG OUTPUT (0÷20 o 4÷20 mA)
2
brown
10
INPUT COMMON (-VDC 0 V)
18
white/blue
11
E/EC OPTION
otherwise:
-ANALOG OUTPUT COMMON
4
red
12
E/EC OPTION: GND
ANALOG OUTPUT: SHIELD
8
black
13
14
15

- 15 -
D4
Male
RS232 serial port
1
2
RS232: RXD
10
yellow
3
RS232: TXD
9
blue
4
5
RS232: SHIELD, GND
8
black
6
7
8
9
D5
Male
RS485 serial
port with
24 VDC output
1
+OUTPUT (24 VDC)*
7
red
2
-OUTPUT (24 VDC)*
8
black
3
4
RS485: +
6
yellow
5
RS485: SHIELD, GND
8
black
6
RS485: -
5
blue
7
RS485: -
5
blue
8
9
RS485: +
6
yellow
*) Not available if the instrument is battery powered.
Use only if the instrument is connected to the provided 24 VDC power supply.
Maximum load: 5 W.