HBM PW15AHi Manuale utente

A2526-4.0 en/de/fr

Digital load cell

Digitale Wägezelle

Peson numérique

PW15AHi

Mounting Instructions

Montageanleitung

Notice de montage

English Page 3 024................................................

Deutsch Seite 25 046..............................................

Français Page 47 068..............................................

PW15AHi

A2526-4.0 en/de/fr HBM

Contents Page

English

Safety instructions 4..............................................

1 Application 6..................................................

2 Special features 7..............................................

3 Marking and variants 7.........................................

4 Mechanical construction and mounting instructions 8............

4.1 Design of the PW15AHi 8..................................

4.2 Before start‐up 8..........................................

4.3 Mounting instructions 9.....................................

5 Electrical configuration and function 10..........................

5.1 Function 10................................................

5.2 Signal conditioning 11.......................................

5.3 Trigger functions 12.........................................

5.4 Limit value function 13......................................

5.5 Extreme value function 13...................................

5.6 Dosing and filling control 13..................................

5.7 Diagnostic function 14.......................................

6 Electrical connection 15.........................................

6.1 PW15AHi pin assignments 15................................

6.2 Supply voltage 16..........................................

7 Interfaces 18...................................................

7.1 RS‐485 4-wire interfaces (UART) 18..........................

7.2 CANopen interface 19.......................................

7.3 DeviceNet interface 20......................................

7.4 Digital control input 22.......................................

8 Specifications 23...............................................

PW15AHi

A2526-4.0 en/de/frHBM

Safety instructions

The device must not be modified from the design or safety engineering point of

view except with our express agreement. Any modification shall exclude all

liability on our part for any damage resulting therefrom.

Repair is specifically forbidden. Repairs may only be carried out by HBM.

All the factory defaults are stored at the factory so that they are safe from

power failure and cannot be deleted or overwritten. They can be reset at any

time by using the command TDD0.

The production number set at the factory cannot be changed.

PW15AHi load cells are exclusively designed for weighing technology

measurement tasks and directly associated control and regulatory tasks.

Use for any purpose other than the above is deemed to be non-designated

use.

There are not normally any hazards associated with this product, provided

the notes and instructions for project planning, installation, appropriate

operation and maintenance are observed.

It is essential to comply with the safety and accident prevention regulations

specific to the particular application.

Installation and start‐up must only be carried out by suitably qualified

personnel.

During installation and when connecting the cables, take action to prevent

electrostatic discharge, as this may damage the electronics.

The required power supply is a (12 - 30 V) extra‐low voltage with safety

separation from the mains (see Specifications).

When connecting additional devices, comply with the safety requirements.

All the interconnecting cables must be shielded cables. The shield must be

connected extensively to ground on both sides.

For additional information, please refer to the Online Help on 1‐FIT‐AED‐DOC

(system CD).

PW15AHi

A2526-4.0 en/de/fr HBM

Residual dangers are indicated in these mounting instructions by the following

symbols:

Symbol: ATTENTION

Meaning: Possibly dangerous situation

Warns of a potentially dangerous situation in which failure to comply with

safety requirements could result in damage to property or some form of phys

ical injury.

Symbols for application instructions and useful information:

Symbol: NOTE

Means that important information about the product or its handling is being

provided.

Symbol:

Meaning: CE mark

The CE mark enables the manufacturer to guarantee that the product complies

with the requirements of the relevant EC directives (the Declaration of

Conformity can be found at http://www.hbm.com/HBMdoc).

Symbol:

Meaning: Statutory waste disposal mark

In accordance with national and local environmental protection and material

recovery and recycling regulations, old devices that can no longer be used

must be disposed of separately and not with normal household garbage.

If you need more information about waste disposal, please contact your local

authorities or the dealer from whom you purchased the product.

PW15AHi

A2526-4.0 en/de/frHBM

1 Application

PW15AHi load cells belong to the digital load cell and measuring chain family

specially developed by HBM for rapid dynamic weighing processes. They

acquire measurement signals from strain gages, condition them digitally, output

them and can network them for buses on request.

They supply a fully‐filtered, scaled and digitized output signal for direct

connection to a bus system or a PC. They operate at high data rates of up to

1200 measurements per second and can be easily and rapidly adapted to the

actual weighing system by means of adjustable parameters.

The integrated trigger function allows event‐driven determination of weight,

which greatly reduces the external software requirements for checkweigher

applications, for example.

The PW15AHi includes dosing control. As this load cell does not have any

digital outputs, the external Master control must make digital I/Os available.

The PW15AHi generates the information to control these digital outputs in the

respective measurement statuses (MSV measurement status). The Master

control then only needs to forward these control bits to its digital outputs to

drive the dosing control valves.

The load cell is supplied as required with an RS485, CANopen or DeviceNet

interface.

PW15AHi load cells are designed in stainless steel and have a high degree of

protection (IP 68).

The AED_Panel 32 PC software is available to facilitate parameter settings, to

display dynamic measurement signals and for comprehensive frequency

analysis of the dynamic system.

This part of the operating manual describes the hardware and the functions of

PW15AHi digital load cells. The commands for serial communication are

described in the online documentation (= AD103C commands).

PW15AHi

A2526-4.0 en/de/fr HBM

2 Special features

Rapid digital filtering and scaling of the measurement signal

Serial interfaces: RS‐485 4‐wire, CANopen, DeviceNet

All settings made via the serial interface

Power failsafe parameter storage

Indestructible storage of factory settings

Selection of output speed of measured values up to 1200 measured values/s

Four limit value functions

Extreme value functions (MIN/MAX)

Four trigger functions (internal level triggering, external triggering)

Dosing control

Diagnostic functions

Supply voltage 12 V ... 30 VDC

Degree of protection: IP 68

3 Marking and variants

The PW15AHi can be delivered with three different interface types.

The accuracy class is C3 (OIML).

Maximum capacity: 10 kg, 20 kg

Interface: B = RS‐485, C = CANopen, D = DeviceNet

PW15AHi product family (3rd generation)

Electrical connection: 0 = socket

Fig. 3.1 PW15AHi order reference, explanations: RS‐485 = RS‐485 4‐wire bus

The following preferred types are defined (other variants on request):

Interfaces

Max. capacity RS-485 CANopen DeviceNet

10 kg 1‐PW15AHi/3B0/10kg 1‐PW15AHi/3C0/10kg 1‐PW15AHi/3D0/10kg

20 kg 1‐PW15AHi/3B0/20kg 1‐PW15AHi/3C0/20kg 1‐PW15AHi/3D0/20kg

50 kg 1‐PW15AHi/3B0/50kg 1‐PW15AHi/3C0/50kg 1‐PW15AHi/3D0/50kg

PW15AHi

A2526-4.0 en/de/frHBM

4 Mechanical construction and mounting instructions

4.1 Design of the PW15AHi

PW15AHi digital load cells are characterized by a compact stainless steel

measuring body and are designed with degree of protection IP68. The

electronics are integrated in the measuring body.

25 27

6M6

18

190.2

150

M6x0.5 (1x)

12.5

M6 (5x)

190.2 190.2

Fig. 4.1 PW15AHi dimensions

4.2 Before start‐up

Take the following precautions into account during mounting and

operation:

The length of the fastening screws must be selected so that the maximum

screw‐in length of 10 mm is not exceeded. Non‐compliance can cause

damage to the load cell.

Avoid force shunts during setup.

PW15AHi

A2526-4.0 en/de/fr HBM

4.3 Mounting instructions

1: PW15AHi mounting at load application: 2 x M6; property class 10.9;

tightening torque 10 Nm; max. screw‐in depth 10 mm.

recommended flatness 0.1 mm on the connecting plate

2: PW15AHi mounting with mounting base: 2 x M6; property class 10.9:

tightening torque 10 Nm; max. screw‐in depth 10 mm

Mounting base

Recommended

flatness: 0.1

Platform center

Load direction

Platform

Load

application

(customer

design)

(1)

(2)

Fig. 4.2 PW15AHi mounting instructions

The PW15AHi load cell must be mounted on a clean surface with a flatness

better than 0.1 mm. Overload protection can be integrated in the form of a

M6x0.5 fine‐thread screw.

It is recommended that the load is applied in the center of the platform, to

minimize off‐center load errors and moments.

Before installing several PW15AHi into an installation with a bus system, take

the following into account:

The printed production number (typeplate) is required for setting up data

communication. If the typeplate can no longer be seen after installation, the

numbers of each PW15AHi should be noted beforehand. This enables different

addresses to be assigned during the initial start‐up.

Alternatively, before connection to the bus system, you can connect each

PW15AHi individually with a PC, in order to set different addresses (see ADR

command, Online Help).

PW15AHi

A2526-4.0 en/de/frHBM

5 Electrical configuration and function

The electronics of the PW15AHi digital load cell basically comprise the

following function groups:

Single‐point load cell

Amplifier

Analog/digital converter (A/D)

Evaluation unit (P)

Power failsafe parameter storage (EEPROM)

Serial interface (RS‐485, CANopen or DeviceNet)

Control input IN1 (Trigger/Stop Dosing)

5.1 Function

Interface

Supply voltage

UB / GND

Serial

interface

IN 1

Trigger

Stop Dosing

EEPROM

Linearization

Serial number

Digital filter

Data rate

Sensitivity

Zero setting

Voltage

controller

Trigger

Voltage

controller

Fig. 5.1 Block diagram

The analog transducer signal is first amplified, then filtered and converted to a

digital value in the analog/digital converter. The digitized signal is conditioned

in the microprocessor and forwarded via the serial interface. All the parameters

can be stored power failsafe in the EEPROM.

Indice

Lingue:

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