LAUMAS W200-MU User manual

Installation and User Manual
version 1.08
W200
Base
2014/30/EU
EN55022:2010 EN61000-6-2:2005 EN61000-6-4:2007
SYSTEM IDENTIFICATION
Microlectra bv. www.microlectra.nl [email protected]
Microlectra bv.
Augustapolder 12. 2992 SR Barendrecht. The Netherlands.
www.microlectra.nl [email protected]

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.................................................................................................................. 4
TECHNICAL SPECIFICATIONS ............................................................................................ 5
ELECTRICAL CONNECTIONS.............................................................................................. 6
BASIC INFORMATION............................................................................................................. 6
WIRING DIAGRAM................................................................................................................... 7
CHANGING VOLTAGE 115 VAC/230 VAC (WDESK)............................................................. 7
LED AND KEY FUNCTION .................................................................................................... 8
MENU MAP ............................................................................................................................ 9
SETPOINT................................................................................................................................ 9
SYSTEM PARAMETERS ......................................................................................................... 9
INSTRUMENT COMMISSIONING........................................................................................ 11
PROGRAMMING OF SYSTEM PARAMETERS .................................................................. 12
THEORETICAL CALIBRATION ............................................................................................. 12
MAXIMUM CAPACITY ....................................................................................................................13
TARE WEIGHT ZERO SETTING.....................................................................................................13
ZERO VALUE MANUAL ENTRY.....................................................................................................13
REAL CALIBRATION (WITH SAMPLE WEIGHTS)............................................................... 14
FILTER ON THE WEIGHT...................................................................................................... 15
ANTI PEAK......................................................................................................................................15
ZERO PARAMETERS............................................................................................................ 16
RESETTABLE WEIGHT SETTING FOR SMALL WEIGHT CHANGES ..........................................16
AUTOMATIC ZERO SETTING AT POWER-ON..............................................................................16
ZERO TRACKING ...........................................................................................................................16
SETTING UNITS OF MEASURE............................................................................................ 17
DISPLAY COEFFICIENT .................................................................................................................17
NET FUNCTIONS................................................................................................................... 18
OUTPUTS AND INPUTS CONFIGURATION ......................................................................... 19
LIMIT MODE........................................................................................................................... 20
SEMI-AUTOMATIC TARE (NET/GROSS).............................................................................. 21
PRESET TARE (SUBTRACTIVE TARE DEVICE) ................................................................. 22
SEMI-AUTOMATIC ZERO (WEIGHT ZERO-SETTING FOR SMALL VARIATIONS) ............ 22
PEAK...................................................................................................................................... 23
ANALOG OUTPUT(ONLY FOR INSTRUMENTS WHERE THIS OPTION IS AVAILABLE) .. 23
SERIAL COMMUNICATION SETTING .................................................................................. 25
RS232 SERIAL COMMUNICATION ................................................................................................27

RS485 SERIAL COMMUNICATION ................................................................................................27
DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER .......................27
WEIGHT READING VIA SERIAL PORT ................................................................................ 28
WEIMOD MODE ..............................................................................................................................28
WEIRIP MODE.................................................................................................................................29
RS485 CONNECTION .....................................................................................................................30
RS232 CONNECTION .....................................................................................................................30
TEST....................................................................................................................................... 31
DATE AND TIME SETTING.................................................................................................... 31
INFO MENU............................................................................................................................ 31
SETPOINT PROGRAMMING............................................................................................... 32
ALARMS .............................................................................................................................. 32
PRINTING EXAMPLES........................................................................................................ 34
RESERVED FOR THE INSTALLER..................................................................................... 35
MENU LOCKING.................................................................................................................... 35
MENU UNLOCKING............................................................................................................... 35
TEMPORARY MENU UNLOCKING ....................................................................................... 35
SETTING UNLOCK PASSWORD .......................................................................................... 35
DATA DELETION AND PROGRAM SELECTION ................................................................. 35
KEYPAD OR DISPLAY LOCKING......................................................................................... 37
DECLARATION OF CONFORMITY - EU............................................................................. 38

- 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 in DIN box (96x96x130 mm; drilling template 91x91 mm) for panel
front mounting. Front panel protection rating IP54 (IP65 front optional). 6-digit semi−alphanumeric
display, 14 mm, 7 segments; 8 indicator LEDs. 5−key membrane keypad with buzzer. Real-time
clock/calendar with buffer battery.
W200BOX - IP67 waterproof ABS box version: dimensions 170x140x95 mm; four fixing holes
Ø 4 mm (centre distance 152x122 mm).
W200 IP67 - IP67 waterproof polycarbonate box version: dimensions 180x130x77 mm, four fixing
holes Ø 4 mm (centre distance 163x113 mm).
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.
The instrument can be connected to a CLM serie intelligent junction box or to a weight transmitter.
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.

- 5 -
TECHNICAL SPECIFICATIONS
POWER SUPPLY and CONSUMPTION (VDC)
12/24 VDC ±10%; 5 W (standard)
POWER SUPPLY and CONSUMPTION (VAC)
115/230 VAC (optional); 50-60 Hz; 6 VA
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.

- 6 -
ELECTRICAL CONNECTIONS
TERMINALS LEGEND
1
+SUPPLY (12/24 VDC)
115/230 VAC optional version:
+OUTPUT (24 VDC)
15
OUTPUT No. 5
otherwise:
+ANALOG OUTPUT (0÷10 V)
2
-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
16
E/EC OPTION
otherwise:
-ANALOG OUTPUT COMMON
3
RS232: TXD
17
RS485: -
4
RS232: RXD
18
RS485: +
5
OUTPUT No. 1
19
-LOAD CELL EXCITATION (-Exc)
LOAD CELL SHIELD
6
OUTPUT No. 2
20
+LOAD CELL EXCITATION (+Exc)
7
OUTPUT No. 3
21
+LOAD CELL REF/SENSE
8
OUTPUT No. 4
22
-LOAD CELL REF/SENSE
9
OUTPUT COMMON
23
-LOAD CELL SIGNAL (-Sig)
10
INPUT No. 1 (+VDC min 5 V max 24 V)
24
+LOAD CELL SIGNAL (+Sig)
11
INPUT No. 2 (+VDC min 5 V max 24 V)
L
PHASE (115/230 VAC optional version)
12
INPUT COMMON (-VDC 0 V)
N
NEUTRAL (115/230 VAC optional version)
13
GROUND (115/230 VAC optional version)
14
INPUT No. 3 (+VDC min 5 V max 24 V)
otherwise:
+ANALOG OUTPUT (0÷20 o 4÷20 mA)
BASIC INFORMATION
-It is recommended that the power supply negative pole be grounded.
-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 optically isolated 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 the
paragraph RS485 SERIAL CONNECTION.
-Option E/EC: selects 12 groups of 5 setpoint.