Bosche WTS Manuale utente

User manual WTS Ver.1.16

Seite 1von 52

WTS

User manual

Status 1.16

Status: 31.08.2022

Version 1.16 .

User manual WTS Ver.1.16

Seite 2von 52

Foreword These operating instructions provide you with detailed

information about the WTB weight measurement system. It

introduces you to set-up, commissioning and operation.

These instructions contain safety instructions to guarantee

safe use of the weight measurement system.

The manufacturer strives to improve their products on an

ongoing basis. They reserve the right to carry out any and all

modifications and improvements that they consider to be

necessary. However, this means that there is no obligation to

carry out retrospective modifications in this connection.

Before using the weight measurement system, you must have

read and understood the operating instructions and the safety

regulations that they contain.

Caution! Risk of electric shock.

Caution

This operation must be performed by skilled personnel.

Attention

Pay particular attention to the following instructions.

A notice

Further information.

User manual WTS Ver.1.16

Seite 3von 52

Table of Contents

1USER WARNINGS ..................................................................................................................................... 4

2RECOMMENDATIONS FOR CORRECT INSTALLATION OF WEIGHING INSTRUMENTS ................................. 4

3RECOMMENDATIONS FOR CORRECT INSTALLATION OF THE LOAD CELLS ................................................ 5

3.1 LOAD CELL INPUT TEST (QUICK ACCESS) ................................................................................................ 7

3.2 LOAD CELL TESTING ............................................................................................................................... 7

3.3 MAIN SPECIFICATIONS OF THE INSTRUMENT ........................................................................................ 8

4TECHNICAL SPECIFICATIONS..................................................................................................................... 9

5ELECTRICAL CONNECTIONS .................................................................................................................... 11

5.1 BASIC INFORMATION........................................................................................................................... 11

5.2 WIRING DIAGRAM ............................................................................................................................... 11

6LED AND KEY FUNCTIONS ...................................................................................................................... 12

7MENU MAP............................................................................................................................................ 13

7.1 SETPOINTS ........................................................................................................................................... 13

7.2 SYSTEM PARAMETERS ......................................................................................................................... 13

8INSTRUMENT COMMISSIONING ............................................................................................................ 14

9PROGRAMMING OF SYSTEM PARAMETERS ........................................................................................... 15

9.1 THEORETICAL CALIBRATION ................................................................................................................ 15

9.1.1 MAXIMUM CAPACITY ...................................................................................................................... 16

9.1.2 TARE WEIGHT ZERO SETTING .......................................................................................................... 16

9.1.3 ZERO VALUE MANUAL ENTRY ......................................................................................................... 16

9.2 REAL CALIBRATION (WITH SAMPLE WEIGHTS) .................................................................................... 17

9.3 FILTER ON THE WEIGHT ....................................................................................................................... 18

9.3.1 ANTI PEAK........................................................................................................................................ 18

9.4 ZERO PARAMETERS.............................................................................................................................. 19

9.4.1 RESETTABLE WEIGHT SETTING FOR SMALL WEIGHT CHANGES ...................................................... 19

9.4.2 AUTOMATIC ZERO SETTING AT POWER-ON .................................................................................... 19

9.4.3 ZERO TRACKING............................................................................................................................... 19

9.5 SETTING UNITS OF MEASURE............................................................................................................... 20

9.5.1 DISPLAY COEFFICIENT...................................................................................................................... 20

9.6 OUTPUTS AND INPUTS CONFIGURATION ............................................................................................ 22

9.7 SEMI-AUTOMATIC TARE (NET/GROSS) ................................................................................................ 24

9.8 PRESET TARE (SUBTRACTIVE TARE DEVICE) ......................................................................................... 25

9.9 SEMI-AUTOMATIC ZERO (WEIGHT ZERO-SETTING FOR SMALL VARIATIONS) ...................................... 26

9.10 PEAK..................................................................................................................................................... 26

9.11 ANALOG OUTPUT................................................................................................................................. 26

9.12 SERIAL COMMUNICATION SETTING..................................................................................................... 28

9.12.1 RS485 SERIAL CONNECTION........................................................................................................ 30

9.12.2 DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER.............................. 30

9.13 TEST ..................................................................................................................................................... 31

10 SETPOINTS PROGRAMMING .................................................................................................................. 32

11 ALARMS ................................................................................................................................................. 33

12 FAST CONTINUOUS TRANSMISSION PROTOCOL..................................................................................... 34

13 CONTINUOUS TRANSMISSION PROTOCOL TO REMOTE DISPLAYS.......................................................... 35

14 ASCII BIDIRECTIONAL PROTOCOL ........................................................................................................... 36

15 MODBUS-RTU PROTOCOL ...................................................................................................................... 41

User manual WTS Ver.1.16

Seite 4von 52

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)

2 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 0 VDC) 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

User manual WTS Ver.1.16

Seite 5von 52

3 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.

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).

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.

User manual WTS Ver.1.16

Seite 6von 52

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

User manual WTS Ver.1.16

Seite 7von 52

3.1 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.

3.2 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 (mega ohms).

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

(thousandths of a Volt).

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.

User manual WTS Ver.1.16

Seite 8von 52

3.3 MAIN SPECIFICATIONS OF THE INSTRUMENT

-Weight indicator and transmitter for Omega/DIN rail mounting suitable for back panel or

junction box. Six-digit semi-alphanumeric display (8mm h), 7 segment. Four-key keyboard.

Dimensions: 25x115x120 mm.

-IP67 box version (170x140x95mm). Four fixing holes diameter 4 mm (centre distance 122x152

mm).

-Displays the gross weight; from external contact allows to zero set or display the net weight

(both values will be lost when the instrument is turned off).

-Peak weight function.

-Transmits the gross or net weight via optoisolated analog output 16 bit, current 0-20mA, 4-

20mA or voltage 0-10V, 0-5V ( ±10V / ±5V by closing a soldering jumper).

-Transmits the gross or net weight via RS485 serial port, by means of protocols:

▫Modbus RTU

▫ASCII bidirectional protocol

▫Continuous transmission

User manual WTS Ver.1.16

Seite 9von 52

4 TECHNICAL SPECIFICATIONS

POWER SUPPLY and CONSUMPTION

(VDC)

12 - 24 VDC +/- 10% ; 5 W

NO. OF LOAD CELLS IN PARALLEL and

SUPPLY

max 8 ( 350 ohm ) ; 5VDC/120mA

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 (16.000.000 points)

MAX DIVISIONS (with measurement range:

+/-10mV = sens. 2mV/V)

+/- 999999

MEASUREMENT RANGE

+/- 19.5 mV

MAX SENSITIVITY OF USABLE LOAD

CELLS

+/-3 mV/V

MAX CONVERSIONS PER SECOND

80 conversions/second

DISPLAY RANGE

- 999999 ; + 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 – 80 Hz

OPTO LOGIC OUTPUTS

N.2 - max 24 VDC ; 60mA

DIGITAL INPUTS

N.2 - optoisolated 5 - 24 VDC PNP

SERIAL PORTS

RS485

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

16 Bit - 65535 divisions

0-20 mA; 4-20 mA (max 300 ohm);

0-10 VDC; 0-5 VDC;

+/- 10 VDC; +/- 5 VDC (min 10 kohm).

OPTO RELAY OUTPUTS

N.2 - max 24 VDC ; 60mA

WORKING TEMPERATURE

-20 °C +60 °C

Equipment to be powered by 12-24 Vdc LPS or Class 2 power source.

User manual WTS Ver.1.16

Seite 10 von 52

IP67 BOX VERSIONS

IP67 box with transparent cover and

six M16x1.5 cable glands

IP67 box with external keypad and

six M16x1.5 cable glands

IP67 box with external keypad and

six M16x1.5 cable glands

And integrated power supply

Indice

Altri manuali Bosche Strumento di misura

Bosche

Bosche zippcube S Manuale utente

Bosche

Bosche EWI Manuale utente

Manuali Strumento di misura popolari di altre marche

Suaoki

Suaoki D40 Manuale utente

Elster

Elster BK-G1.6 Manuale utente

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuale

Duratool

Duratool D03128 Manuale utente

Vega

Vega VEGAPULS 65 Manuale utente

Tonghui

Tonghui TH2618B Manuale utente

Tenmars

Tenmars TM-801 Manuale utente

MSR

MSR 145 Manuale utente

TPS

TPS WP-82 Manuale utente

ELMETRON

ELMETRON CP-511 Manuale utente

PCB Piezotronics

PCB Piezotronics 003C30 Manuale utente

Tenma

Tenma 72-10465 Manuale utente

Endress+Hauser

Endress+Hauser Proline Promag 50 Specifiche tecniche

Siemens

Siemens SITRANS F Coriolis FCT030 Manuale elenco delle parti

KLINGER

KLINGER CMF V Series Manuale utente

EXFO

EXFO FTB-2 Manuale operativo e di manutenzione

Keysight

Keysight M8290A Manuale utente

ADTEK

ADTEK MW-5 Manuale utente