Pavone Sistemi DAT 500 Manuale utente

Pavone Sistemi

pesatura elettronica industriale

TECHNICAL MANUAL

DAT 500 Weight Indicator/Transmitter with serial and ANALOG output

Software version PW13012

Page II

Page 1

Rel ID 152100 sw1.7

TABLE OF CONTENTS

PRECAUTIONS.............................................................................................. Page 2

INTRODUCTION ........................................................................................... Page 3

TECHNICAL FEATURES................................................................................... Page 4

INSTALLATION .............................................................................................. Page 5

FRONT PANEL OF THE INSTRUMENT .............................................................. Page 8

USING THE KEYBOARD ................................................................................. Page 9

INFO DISPLAY ............................................................................................... Page 11

VIEWING, ZEROING THE WEIGHT AND SELF-CALIBRATION............................. Page 12

SETTING....................................................................................................... Page 16

CHART OF THE MENU................................................................................... Page 18

SETTING PARAMETERS................................................................................... Page 20

CALIBRATION................................................................................................ Page 23

WEIGHTING PARAMETERS............................................................................. Page 25

INPUT/OUTPUT PARAMETERS......................................................................... Page 27

SERIAL OUTPUT PARAMETERS......................................................................... Page 30

ANALOG OUTPUT PARAMETERS..................................................................... Page 33

SERIAL COMMUNICATION PROTOCOLS ........................................................ Page 35

UPLOAD AND DOWNLOAD FUNCTION......................................................... Pag. 48

TROUBLESHOOTING ..................................................................................... Pag. 53

Page 2

PRECAUTIONS

READ this manual BEFORE operating or servicing the instrument.

FOLLOW these instructions carefully.

SAVE this manual for future use.

CAUTION

The installation and maintenance of this instrument must be allowed

to qualified personnel only.

Be careful when you perform inspections, testing and adjustment

with the instrument on.

Perform the electrical connections in the absence of the power supply

Failure to observe these precautions may be dangerous.

DO NOT allow untrained personnel to work, clean, inspect, repair

or tamper with this instrument.

Page 3

PAVONE SISTEMI

INTRODUCTION

The DAT 500 is a transmitter of weight to be combined with the load cells to detect the weight in every

situation.

The module is easy to install and can be mounted on a front panel.

The display allows easy reading of the weight, the status of the instrument, the setting parameters and

errors.

The 4 keys located below the display allow the operator to perform the functions of ZERO, TARE,

GROSS/NET switching, setting of the setpoints weight, setting and tare both theoretical than real.

The DAT 500 uses the serial port RS232 with ASCII and Modbus RTU protocols for connecting to a

PC, PLC and remote units.

They are always available 2 programmable weight setpoints and the control of the maximum weight

value reached (peak).

The RS422/RS485 serial output allows you to connect up to 32 addressable devices.

The availability of the most common fieldbuses, as an alternative to the RS422/RS485 port, also allows

the transmitter to interface with any supervision device currently offered by the market.

Available versions:

DAT 500: weight transmitter with serial output RS232, RS485 and Peak function. Supported protocols

are Modbus RTU, continuous, slave and the ones upon request. Two programmable setpoints, 2 inputs

and Peak function.

• DAT 500/A: version with the analog output.

• DAT 500/PROFIBUS: weight transmitter with serial output RS232 and PROFIBUS DP.

• DAT 500/DEVICENET: weight transmitter with serial output RS232 and DEVICENET.

IDENTIFICATION PLATE OF THE INSTRUMENT

It’s important to communicate this data in the event of a request for information or information concer-

ning the instrument together with the program number and version that are shown on the cover of the

manual and are displayed when the instrument is switched on.

WARNINGS

The following procedures must be performed by qualified personnel.

All connections must be performed when the instrument is turned off.

Page 4

TECHNICAL FEATURES

Power supply 24 Vdc ± 15 %

Max. absorption 5W

Insulation Class II

Installation category Cat. II

Operating temperature -10°C ÷ +40°C (max. humidity 85% non-condensing)

Storage temperature -20°C ÷ +50°C

Weight display Numerical with 6 red led digits and 7 segments (h 14

mm)

Led 4 LEDs of 3 mm

Keyboard 4 mechanical keys

Overall dimensions 48 x 96 x 148 mm (l x h x w)

Installation Panel mount; cutout 45 x 92 mm

Case material self-extinguishing Noryl (UL 94 V1)

Connections Screw terminal boards, pitch 5.08 mm

Load cells power supply 5 Vdc/120 mA (max 8 cells of 350 Ω in parallel),

short-circuit protected

Input sensitivity 0.02 µV min.

Linearity 0.01% of the full scale

Temperature drift 0.001% of the full scale /°C

Internal resolution 24 bits

Resolution of the weight displayed Up to 60,000 divisions on the net capacity

Measurement range –0.5 mV/V to +3.5 mV/V

Frequency of weight capture 5 ÷ 50 Hz

Digital ﬁlter To be selected from 0.2 Hz to 25 Hz

Number of weight decimals 0 ÷ 3 decimal places

Zero calibration and full scale Automatic (theoretical) or executable from the

keyboard.

Logic outputs 2 opto-isolated (dry contact), max 24Vdc / 60 mA

each

Logic inputs 2 opto-isolated at 24 Vdc PNP (external power supply)

Serial port (# 2) RS232C and RS485

Maximum cable length 15m (RS232) and 1000m (RS422 and RS485)

Serial protocols ASCII, Modbus RTU

Baud rate 2400, 9600, 19200, 38400, 115200 to be selected

Program code memory 64 Kbytes FLASH on-board reprogrammable from

RS232

Data memory 2 Kbytes

Analog output (optional) Voltage or current

Resolution 16 bits

Calibration Digital from the keyboard

Impedance Voltage: min. 10 KΩ Current: max 300 Ω

Linearity 0.03 % of the full scale

Temperature drift 0.001% of the full scale / °C

Compliance with the standards EN61000-6-2, EN61000-6-3 for EMC

EN61010-1 for Electrical Safety

UL: FILE NO E474362

Page 5

96 139

130

148

+24 Vdc

0 Vdc

INSTALLATION

GENERAL DATA

The DAT 500 is composed of a motherboard, on which you can add the options available; the mother-

board is housed in a plastic enclosure for panel mounting.

The DAT 500 should not be immersed in water, subjected to jets of water and cleaned or

washed with solvents.

Do not expose to heat or direct sunlight.

OVERALL DIMENSIONS

ELECTRIC INSTALLATION

The transmitter DAT 500 uses screw terminal boards, pitch 5.08 mm, for the electrical con-

nection. The load cell cable must be shielded and channeled away from tension cables to

prevent electromagnetic interference.

INSTRUMENT POWER SUPPLY

The instrument is powered through the terminals 1 and 2. The power

cord must be channeled separately from other cables.

The supply voltage is electrically isolated.

Power supply voltage: 24 Vdc/ ± 15% max. 5W

Page 6

LOAD CELLS

- Exc

+ Exc

+ Sense

- Sense

- Sig

+ Sig

2+SGN

3-EXC

6+EXC

1-SGN

5+SNS

4-SNS

7SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

J-BOX CGS4DAT 500

SENSE-

SENSE+

I OUT+

V OUT+

SIGN-

SIGN+

C OUT

S GND

C OUT

OUT2

C IN

EXC-

EXC+

OUT1

IN2

RX-

RX+

T X -

TX+

IN1

TXD

RXD

+24V

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

INPUTS

24 VDC

INPUT 1

INPUT 2

COM. INPUT

CONNECTIONS OF THE LOAD CELL/S

The cell/s cable must not be channeled with other cables, but must

follow its own path.

The instrument can be connected up to a maximum of 8 load cells

of 350 ohm in parallel. The supply voltage of the cells is 5 Vdc and

is protected by temporary short circuit.

The measuring range of the instrument involves the use of load cells

with a sensitivity of up to 3.5 mV / V.

The cable of the load cells must be connected to terminals 19-24.

In the case of 4-wire load cell cable, jumper the terminals 19 to 22

and 20 to 21.

Connect the cell cable shield to the terminal 2.

In the case of the usage of two or more load cells, use special junction

boxes (CEM4/C or CSG4/C). Below please find their connection.

LOGIC INPUTS

The two logic inputs are opto-isolated.

The cable connecting the logic input should not be channeled with

the power cables.

The function of the two inputs is as follows:

INPUT1 Resetting the displayed value (gross, net or peak)

INPUT 2 PRINT

The activation of the two functions is accomplished by bringing the

external power supply 24 Vdc to the corresponding terminals as

shown in the figure.

Page 7

OUTPUTS

24 Vdc

100 mA Max

OUTPUT 2

OUTPUT 1

COM. OUTPUT

TXD

RXD

S.GND

SHIELD

RS232

(20m max)

S.GND

TXD+

TXD-

RXD+

RXD-

RS422/485

N°32 units max

(1000m max)

LOGIC OUTPUTS

The two opto-isolated relay outputs are the normally open contact.

The capacity of each contact is 24 Vdc, 100 mA max.

The cable connecting the outputs should not be channeled with the

power cables. The connection should be as short as possible.

SERIAL COMMUNICATION

RS232:

The RS232 serial port is always present and handles various pro-

tocols.

To achieve the serial connection, use a shielded cable, making sure

to connect the shield to one of the two ends: to pin 8 if connected

on the side of the instrument, to the ground if it is connected on the

other side.

The cable must not be channeled with power cables; the maximum

length is 15 meters (EIA RS-232-C), beyond which you should take

the optional RS485 interface.

ANALOG OUTPUT (OPTIONAL)

The transmitter provides an analog output in current and voltage.

Analog voltage output: range from -10 to 10 V or -5 to 5 V,

10 Kohm minimum load.

Analog current output: range from 0 to 20 mA or 4 to 20 mA. The

maximum load is 300 Ω.

To achieve the serial connection, use a suitable shielded cable,

making sure to connect the shield to one of the two ends: to pin

2 if connected on the side of the instrument, to the ground if it is

connected on the opposite side.

Attention: do not connect the analog output to devices that are

switched on.

RS485:

The serial port RS485 (2-wire) is present in the model DAT 500/

RS485.

To achieve the serial connection, use a suitable shielded cable,

making sure to connect the shield to one of the two ends: to pin

8 if connected on the side of the instrument, to the ground if it is

connected on the opposite side.

The cable should not be channeled with the power cables.

VOLTAGE (10 kΩ min)

ANALOG COM.

CURRENT (300 Ω max)

SHIELD

Page 8

SET FUN 0 PRG

1 2 NET

8.8.8.8.8.8.

PRECISE

DAT 400

FRONT PANEL OF THE INSTRUMENT

The DAT 500 has a bright 6-digit display, 4 status LEDs and four keys.

In this operating mode the display shows the weight and the LEDs indicate the status of weight and the

setpoints.

The set-up parameters are easily accessed and modified through the use of the three front buttons used

to select, edit, confirm and save the new settings.

DISPLAY

On the 6-digit display, it’s usually shown the scale weight. According to the various programming

procedures, the display is used for programming of the parameters to be stored in the memory, or the

messages that indicate the type of operation being carried out and help therefore the Operator in the

management and programming of the instrument.

LED INDICATORS

Below the display there are 4 LED indicators:

1 State of the logic output 1 (ON = closed contact OFF = open contact)

2 State of the logic output 2 (ON = closed contact OFF = open contact)

NET The displayed value is the net weight

0 IT indicates the condition of stable weight.

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