PAVONE DAT 500 Technical Manual

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DAT 500

TECHNICAL MANUAL

For Analog/Probus/Devicenet versions

Digital Transmitter

Software version PW13081

Page II

Page 1

0316

TABLE OF CONTENTS

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

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

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

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

FRONT PANEL OF THE INSTRUMENT .............................................................. Page 10

USING THE KEYBOARD ................................................................................. Page 11

INFO DISPLAY ............................................................................................... Page 13

VIEWING, ZEROING THE WEIGHT AND SELF-CALIBRATION ............................. Page 14

SETTING ....................................................................................................... Page 18

CHART OF THE MENU ................................................................................... Page 20

SETTING PARAMETERS ................................................................................... Page 22

CALIBRATION................................................................................................ Page 25

WEIGHTING PARAMETERS ............................................................................. Page 27

INPUT/OUTPUT PARAMETERS ......................................................................... Page 29

SERIAL OUTPUT PARAMETERS ......................................................................... Page 32

ANALOG OUTPUT PARAMETERS..................................................................... Page 36

SERIAL COMMUNICATION PROTOCOLS ........................................................ Page 38

FIELDBUS PROTOCOLS .................................................................................. Page 46

TROUBLESHOOTING ..................................................................................... Page 50

GROUNDING CONNECTIONS DAT500 ......................................................... Page 51

INTRINSIC SAFETY BARRIERS .......................................................................... Page 52

OPTION 24 VOLT POWER SUPPLY .................................................................. Page 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

INTRODUCTION

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

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. In parallel with the RS232, a USB port available.

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, RS422/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 concerning 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 106 mm x 58 mm x 90 mm (l x h x w) Installation Panel mount Case material self-extinguishing Noryl (UL 94 V1) Connections Screw terminal boards, pitch 5.08 mm Load cells power supply 5 Vdc/120mA (max 8 cells of 350W in parallel), short-

circuit protected Input sensitivity 0.02 mV 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 Hz - 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 or RS422/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. 10KΩ; Current: max 300Ω Linearity 0.03 % of the full scale Temperature drift 0.001% of the full scale /°C

Fieldbus (optional PROFIBUS DP, DEVICENET, Buffer dimension 128 byte IN - 128 byte OUT

Page 5

PRG

SET

FUN

1 2

NET

8.8.8.8.8.8.

PRECISE DAT 500

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 motherboard is housed in a plastic enclosure.

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 connection. 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

9 10

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 CGS4

DAT 500

SENSE-

SENSE+

I OUT+

V OUT+

SIGN-

SIGN+

C OUT

S GND

C OUT

OUT2

C IN

EXC-

EXC+

OUT1

IN2

RX-

RX+

TX -

TX+

IN1

TXD

RXD

12+

+24V

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

+EXC

-EXC

+SGN

-SGN

SHD

25 pin Connector

FIELDBUS

OPTIONAL

9 10

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. 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)

9 10

S.GND

TXD+

TXD-

RXD+

RXD-

RS422/485

N°32 units max

(1000m max)

VOLTAGE (10 kΩ min)

ANALOG COM.

CURRENT (300 Ω max)

SHIELD

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 protocols.

To achieve the serial connection, use a shielded cable, making sure to connect the shield to one of the two ends: to terminal 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.

RS422/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 terminal 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.

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, with minimum load of 10 KΩ.

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 terminal 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.

Page 8

9 6

B_LINE

A_LINE

9 6

PROFIBUS DP CONNECTION

Pin Signal Description

1 - 2 - 3 B line +RxD/+TxD, level RS485 4 RTS Request to send 5 GND Ground (isolated) 6 + 5V Bus Output +5V termination (isolated) 7 - 8 A line -RxD/-TxD, level RS485 9 - Housing Cable shield Internally connected to protective

earth according to Profibus

specification For connection to the Profibus Master, use a standard Profibus cable.

The typical impedance of the cable should be between 100 and 130 Ohms (f> 100 kHz). The cable capacity (measured between conductor and conductor) should be less than 60 pF / m and the minimum cable cross section should not be less than 0.22 mm2

In a Profibus-DP network, you can use either cable type A to type B cable, depending on the required performance. The following table summarizes the features of the cable to be used:

SPECIFICATION TYPE A CABLE TYPE B CABLE

Impedance from 135 to 165 ohm (f

= 3 – 20 MHz)

from 100 to 300 ohm (f

> 100 kHz) Capacity < 30 pF/m < 60 pF/m Resistance < 110 ohm/km Conductor cross

section

> 0,34 mm

> 0,22 mm

The following table shows the maximum length of the wires line with cable type A and type B, function of the different communication speed required:

Baud rate (kbit/s)

9.6 19.2 187.5 500 1500 3000 6000 12000

Cable A lenght (m)

1200 1200 1000 400 200 100 100 100

Cable B lenght (m)

1200 1200 600 200 - - - -

For a reliable operation of the Fieldbus, should be used a line termination at both ends.

In the case of multiple DAT 500 instruments, use the line termination at only one instrument.

For configuring the instrument, the GSD file is available (hms_1810. GSD) that must be installed in the master.

Page 9

V-

V+

CAN_L

CAN_H

SHIELD

54321

DEVICENET CONNECTION

Pin Signal Description

1 V- Negative power bus 2 CAN_L CAN low bus line 3 SHIELD Shield 4 CAN_H CAN high bus line 5 V+ Positive power bus

To connect to the DeviceNet master, use a standard DeviceNet cable or shielded twisted-pair cable as shown on the diagram.

The cable must not be channeled with power cables. For reliable operation of the Fieldbus, should be used as a line termination of 121 Ω value between the terminal CAN_L and CAN_H.

For the configuration of the card is available ESD file that must be installed in the master.

Page 10

SET FUN 0 PRG

1 2 NET

8.8.8.8.8.8.

PRECISE DAT 500

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.

Page 11

USING THE KEYBOARD

The instrument is programmed and controlled through the keyboard which has 4 keys, with double functions. The selection of one of the key functions is established automatically by the instrument according to the operation in progress. In general, the management of the programming menus is done by using the SET and FUN keys to scroll through the items; the PRG key is used to enter its sub-menu or programmable parameter, while the 0 button allows you exiting the menu or returning to the top level.

KEY FUNCTIONS DURING THE WEIGHT DISPLAY

SET

Access to the menu for the programming of the setpoints

FUN

Select the display view (gross weight, net weight). (Long press) Selection of the weight/peak display

Resetting the displayed value (gross weight, net weight or peak). (Press and hold for 5 sec.) Calibration of zero, to be executed only if its function is enabled in the PARAM menu (see item “0 ALL”).

PRG

Sending the weight string on the serial line. (Long press) Access to the quick set-up menu.

PRG

SET

(Press for 3 sec) Access to the setup menu.

PRG

(Press for3 sec) It accesses the keypad lock/unlock menu and auto-off function of the display.

KEY

FUNCTION DURING THE MAIN MENU DISPLAY

SET

It selects the next parameter.

FUN

It selects the previous parameter.

It exits the programming menu or returns to the upper level.

PRG

It accesses the corresponding sub-menu or programming or confirms the selected parameter.

KEY

FUNCTION WHEN SETTING THE NUMERICAL VALUES

SET

It increases the value of the flashing digit.

FUN

It decreases the value of the flashing digit.

It goes to the next digit.

PRG

It confirms the displayed value.

Page 12

KEY FUNCTION WHEN SETTING THE NUMERICAL VALUES

SET

It selects the next value.

FUN

It selects the previous value.

PRG

It confirms and store the displayed value.

EXIT FROM THE SETTING MENU

Press the

key to return to the main menu. Press the

. key again. It’s displayed “StORE?”.

Press the

PRG

key to return to the main menu.

To exit without saving any changes, switch off the instrument instead of pressing the

PRG

key.

Page 13

INFO DISPLAY

When the instrument is switched ON, you can test the display, then in sequence you can display the identification code of the software and its version. Communication codes in the event of a request for assistance.

ERRORS NOTIFICATION

In the operation mode, the display can report the following error codes.

ϩϩϩϩϩϩ the weight applied to the load cell exceeds by more than 9 divisions the maximum capacity

of the weighing system.

O-L Signal of the load cells absent or outside of the measurement range mV/V.

no CoN Fieldbus network disconnected

E-ProF PROFIBUS interface absent or not operating.

E-dNEt DEVICENET interface absent or not operating.

ϩϩϩϩϩϩ Dash that runs along the perimeter of the display: BLIND function enabled.

ErrNEN Memory error. Press the

PRG

key to reset the memory and return the parameters to their

default values. NOTE: it is also deleted the calibration performed.

Page 14

VIEWING, ZEROING THE WEIGHT AND SELF-CALIBRATION

After being calibrated, at the subsequent switches on, the display shows the current weight.

VIEWING THE NET WEIGHT/GROSS WEIGHT

Press the

FUN

key to toggle between the net weight and the gross weight and vice versa. The value displayed is signaled by the LED NET (lit: net weight). If you have not entered the tare, the net weight is equal to the gross weight.

In case of negative weight, it is displayed the minus sign before the most significant digit.

ZEROING, WEIGHT AND SELF-CALIBRATION

These two functions are performed by pressing

When the instrument is in the operation mode “Net” (“NET” LED on), the

key performs the self-

calibration.

When the instrument is in operation mode “Gross” (“NET” LED off), the

key clears the gross weight.

SELF-CALIBRATION

The execution of self-calibration is possible under the following conditions:

• Instrument under conditions of “Net” (NET” LED on).

• Positive gross weight.

• Gross weight not greater than the maximum capacity.

• Stable weight.

• Unstable weight. In this condition, we must distinguish two cases:

1. The weight stability control is enabled (the parameter “MOTION” (*) must be other than zero): the

command executed while the weight is unstable only has an effect if the weight stabilizes within 3 seconds from the moment the command was given.

2. The weight stability control is disabled (the parameter “MOTION” (*) is equal to zero): the executed

command takes effect immediately, even with unstable weight.

(*) The operating modes of the parameter “MOTION” are described at page 26

The self-calibration is retained in memory even after the power is turned off.

ZEROING

The reset command of the gross weight is used to correct for small zero shifts of the weighing system during normal operation.

Normally these zero shifts are due to thermal drifts or to residues of material that accumulate on the weighing system over the time.

To run the command, it is necessary that the instrument is under conditions of “Gross” (“NET” LED off) and that the deviation of the weight with respect to the zero of the scale (the one performed with the calibration of zero) does not exceed (in positive or negative) the number of divisions set in parameter “0 BAND” (inside the PARAM menu; see page 28).

The reset command of the gross weight does not run if there is even one of the following conditions:

Page 15

• Unstable weight (with control of the stability of the weight enabled). In this case, the reset command takes effect only if the weight stabilizes within 3 seconds or if the control of the weight stability is disabled (parameter “MOTION “ equal to zero).

• Gross Weight greater (in positive or negative) than the number of divisions set in parameter “0 BAND” , when the setpoint of auto-calibration is not programmed.

The zero obtained with the resetting of the gross weight is retained in memory even after the power is turned off.

The reset operation of the gross weight can be repeated several times, but the number of reset divisions zero is added from time to time, so when the total exceeds the limit value set in parameter “0 BAND”, the zero cannot be executed. In this case, it is necessary to calibrate the Zero.

Any auto-zero parameter setting when switching on (AUTO 0) reduces (or cancels, in the case of “AUTO 0”> “0 BAND”) the range of action of the reset command.

PEAK FUNCTION

The instrument continuously memorizes the peak value of the gross weight. The peak value is detected at the same frequency of acquisition of the weight (see table on filters). In addition to visualization, the peak value can be used in the following functions:

FUNCTION DESCRIPTION

LOGIC OUTPUT The setpoints can be set to have the peak value as a reference. (See the

procedure for setting the logic outputs operations).

SERIAL PORT Acquisition of the peak value (peak hold) through the CONTIN, AUTO, DE-

MAND, and MODBUS SLAVE protocols.

ANALOG OUTPUT

The analog output value can assume the value of the peak (peak old). (See the procedure for setting the analog output).

Press the

FUN

key and hold it for 3 seconds until the left of the display shows the letter “P”.

INPUT / OUTPUT FUNCTIONS

INPUT

Resetting the displayed value (gross weight, net weight or peak). Closed for 5 sec. -> Calibration of zero, to be executed only if its function is enabled in the PARAM menu (see item “0 ALL”).

Sending the weight string on the serial line or print.

OUTPUT

1 Setpoint 1 2 Setpoint 2

Page 16



sEt 1

123456

SEt 2

123456

Increment

digit

Change

selected digit

EXIT

0SETSET

FUN

PRG

SET FUN

PRG

SET

Increment

digit

Change

selected digit

PROGRAMMING THE WEIGHT SETPOINTS

The set setpoint values are compared with the weight to drive its logic output. The comparison criterion is established in the process of set-up of the logic I / O (see relevant paragraph).

To access the Setpoint setting, press the SET key and follow the instructions on the figure below.

During the step of setting the setpoints, both outputs are disabled. If the setpoint value in memory is 0, the corresponding output is never enabled, regardless of the set-up of the selected setpoints. When the weight is not detectable or out of range, all outputs are disabled (contact open or closed depending on the MODE; see the relevant chapter).

Page 17



LOck

0000

blind

off

3 sec.

Select

digit

Change

selected digit

Select

digit

Change

selected digit

EXIT

KEYS CORRESPONDING

SET

SETSET

FUN

PRG

SET FUN

PRG

0SET FUN

PRG

KEYBOARD LOCK/UNLOCK FUNCTION

KEYBOARD LOCK/UNLOCK A function that allows you to enable or disable the keys individually. When the keys are locked, the only way to access these settings is to press and hold pressed the PRG + 0 keys for 3 seconds. For more information on the function, refer to the block diagram above.

SWITCHING THE DISPLAY OFF This function allows turning off the display after a programmable time.

You can select ON / OFF of the parameter BLIND and the setting of a time; the time count starts from the moment when, after exiting the setup menu, the display shows the weight value. After the set time, the display turns off and only a dash appears. This dash cycles through the perimeter of the display counterclockwise. When the display is off, also the 4 keys are disabled, regardless of how you set the keypad lock (LOCK). The only way to access the settings will be PRG + 0.

Page 18

SETTING

GENERAL DATA

All functions of the DAT 500 are activated and modified by accessing a simple setup menu, shown afterwards. All settings selected or activated remain stored even after switching off the transmitter.

The DAT 500 is preconfigured with a default setting. The following pages show the values of “Default” for each parameter.

With the first on-site installation, it’s necessary to change some parameters in order to obtain a correct indication of the displayed weight (Theoretical adjustment).

The settings of the setup menu can be changed using the front keys or via the utility “INOVATION 2” software supplied.

CHANGING AND ENTERING THE PARAMETERS:

The setup parameters are grouped into a number of main menus.

To access the setup menu press the PRG key and then the SET key and hold down simultaneously for 3 seconds.

The display shows the message Conf1G that is the first of the main menus

Use the arrow keys to select the menu you want to change.

Press the PRG key to access the selected menu.

KEY FUNCTION DURING THE MAIN MENU PROGRAMMING

SET

It selects the next menu.

FUN

It selects the previous menu.

It exits the programming menu or returns to the upper level.

PRG

It accesses the corresponding sub-menu or programming or confirms the selected parameter.

KEY FUNCTION WHEN SETTING THE NUMERICAL VALUES

SET

It increases the value of the flashing digit.

FUN

It decreases the value of the flashing digit.

It goes to the next digit.

PRG

It confirms and store the displayed value.

Page 19

KEY FUNCTION WHEN SETTING THE PROSED VALUES

SET

It selects the next value.

FUN

It selects the previous value.

PRG

It confirms and store the displayed value.

The menu parameters can assume values that can be set or selected.

NOTE To exit and save the modified data, press multiple times the

key until the display shown

StorE, then press

PRG

key to go back to the operating mode.

Page 20

Conf1G

CapaC

SEns1t

nEt

dEad L

dspd1J

S1GnaL

CoUnts

opNodE

UpLoad

dnLoad

CaL1br ParaN

fILtEr

Notion

auto 0

0 trac

0 band

1n-oUt

NodE 1

Hyst-1

t1NEr1

dELay1

NodE 2

Hyst-2

t1NEr2

dELay2

tEst1n

tstoUt

SEr1aL

baUd r

Prot-1

prot-2

AddrEs

Pr-Add

dELay

rEN-Co

data F

AnaLoG

f-sCaL

NodE

AnzEro

tEst

ranGE

OffsEt

StorE?

CaL

123456

60000

t-Nap

r-NaP

dELNap

baud2r

dN-Add

SET FUN

0 ALL

3 sec.

EXIT MENU

ENTER MENU

DEVICENET

1P-Add

SubnEt

SET FUN

ETHERNET IP

PROFINET

PRG

SET

FUN

SET

FUN

SET

FUN

SET

FUN

SET

FUN

0 0

0 0 0

0 0

PRG

PRG PRG PRG

SET SET FUN SET FUN

SET FUN

FUNSET

SET FUN

FUN

PRG

SET

SET FUN

DIAGRAM OF THE MENU

Page 21

CapaC

SEns1t

nEt

dEad L

dspd1J

S1GnaL

CaL1br

AnaLoG

StorE?

CaL

123456

60000



5 sec.

EXIT MENU

ENTER MENU

PRG

FUN

PRG

SET

SET FUN

FUN

PRG

SET

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Select Value

PRG

See Value

PRG

Enter Value

PRG

QUICK SETUP MENU

Page 22

Conf1G

PRG

SET

FUN

CaL1br

CapaC

SEns1t

nEt

dEad L

dspd1J

S1GnaL

CoUnts

opNodE

UpLoad

dnLoad

SET FUN

SET

FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Select Value

PRG

Read Value

PRG

Read Value

PRG

Select Value

PRG

Transmit setup data

to serial port

Receive setup data

from serial port

CONFIGURATION PARAMETERS

Through the setting of the parameters listed below, the theoretical Full Scale DAT 500 calibration is performed. You must complete these steps with the zero calibration described on page 23. The procedure ensures a good accuracy of the system (maximum error <1% FS) if there are no mechanical problems.

Program the known values of total capacity and sensitivity of the load cells and the approximate values of net capacity and calibration. If the parameter SENSIT is not programmed, it is taken the 2.0000 mV/V value.

If the parameter CAPAC is programmed other than 0, according to the data CAPAC, SENSIT, NET and DEAD L , the instrument automatically runs the following functions:

• Resetting the linearization points.

• Selection of the value of the division, however, to be modified, to the best of 10,000 divisions.

• Calibration of the theoretical approximate calibration of the weight (zero and full scale).

• Automatic programming of the overload setpoint (= NET).

These functions are performed each time you change one of the 4 parameters shown.

When you change the DSPDIV selection., it is automatically recalculated to full-scale calibration. The selections are incompatible with the calibration parameters or calibration in memory are not accepted.

The selection programmed in Opmode is read from the instrument when it is switched on and it makes that the instrument operates in that way.

CAPAC CAPACITY OF THE WEIGHING SYSTEM

It defines the value corresponding to the sum of the rated capacity of the load cells. In the case of systems with only one load cell and “N” fixed supports, enter the capacity value of the cell for the total number of supports. This figure represents the full scale value of the weighing system.

Following the change of the parameter value, the theoretical tare of the weight is recalculated.

Values: from 1 to 500000 Unit: the same of that displayed Default: 10000

sEnsit LOAD CELLS SENSITIVITY

Set the value corresponding to the average sensitivity of the load cells, in mV / V. The instrument accepts values between 0.5 and 4 mV / V. If no value if programmed, it’s assumed it is 2mV/V.

Following the change of the sensitivity value, the theoretical tare of the weight is recalculated.

Values: from 0.5000 to 4.0000 mV/V Default: 2.0000

Page 23

Conf1G

PRG

SET

FUN

CaL1br

CapaC

SEns1t

nEt

dEad L

dspd1J

S1GnaL

CoUnts

opNodE

UpLoad

dnLoad

SET FUN

SET

FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Select Value

PRG

Read Value

PRG

Read Value

PRG

Select Value

PRG

Transmit setup data

to serial port

Receive setup data

from serial port

nEt CAPACITY OF THE WEIGHING SYSTEM

Programming the net capacity of the weighing system. Values lower than 1/10 of CAPAC are not accepted.

Values: from 1 to 500000 Unit: the same of that displayed Default: 10000

dEad L FIXED CALIBRATION OF THE WEIGHTING SYSTEM

Programming the fixed calibration value of the weighting system.

Values: from 1 to 500000 Unit: the same of that displayed Default: 00000

dsPd1J DIVISION VALUE

The ratio between the capacity of the system and the division value represents the resolution of the system (number of divisions).

Following the change of the capacity of the system, it is automatically selected the division value to the best of 10000 divisions.

Following the change of the division value, if the maximum capacity does not change, the calibration of the weight is automatically corrected.

Value to be selected:

0.0001 - 0.0002 - 0.0005 0,001 - 0,002 - 0,005

0.01 - 0.02 - 0.05

0.1 - 0.2 - 0.5 1 -2 - 5 10 - 20 - 50 Default: 1

S1GnaL TESTING THE LOAD CELLS SIGNAL

It’s displayed the signal acquired from the load cells expressed in mV/V.

CoUnts A/D CONVERTER INTERIOR POINTS TEST

View of the interior points of the instrument (1,000,000 at the maximum input signal).

oPNodE SELECTION OF THE OPERATING MODE

Selection of the operating mode of the device (display) when it is switched on:

Value to be selected: GROSS, NET, PEAK Default: GROSS

Page 24

Conf1G

PRG

SET

FUN

CaL1br

CapaC

SEns1t

nEt

dEad L

dspd1J

S1GnaL

CoUnts

opNodE

UpLoad

dnLoad

SET FUN

SET

FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Select Value

PRG

Read Value

PRG

Read Value

PRG

Select Value

PRG

Transmit setup data

to serial port

Receive setup data

from serial port

UpLoad RECEIVING DATA FUNCTION

Receiving function from a serial of a file containing the setup data that will be automatically set in the instrument.

dnLoad SENDING DATA FUNCTION

Sending function from a serial of a file with the content of the setup memory of the instrument.

EXAMPLE OF SETTING/CALIBRATION

You must weigh a tank, with empty weight of 750 kg and with a capacity of 1000 liters, containing a product with a specific gravity of 1.33 of which you want to read the weight with a display resolution of 0.2 Kg.

Before proceeding with the configuration, you should make sure that the load cells are connected properly to the unit and the tank is empty. Then you can set the parameters.

They are used:

Nr 3 load cells with capacity of 1000 kg

Sensitivity of respectively 2.0015, 2.0008 and 1.9998 mV/V (average value = 2.0007 mV/V)

Set the following values in the configuration parameters:

CAPAC = 3000 SEnS1t = 2.0007 nEt = 1500 dEad L = 0 dSpd1J = 0.2

Make sure that the value read in the S1GNAL parameter corresponds with the calibration weight of the system according to the following proportion:

3000:2.0007=750:X

Where X is the value of the signal expressed in mV/V corresponding to the theoretical value of the weight of the empty tank. The value should be about 0.5 mV/V.

Now you can proceed to the calibration described in the following paragraph, or you can exit the configuration menu by saving the data entered.

The instrument should indicate the value corresponding to the weight of the empty tank (for example 756.8).

You can re-access the configuration menu and enter the weight value read in the dEad L parameter and enter the value 756.8.

Quit the configuration menu by saving the data.

For greater accuracy, prepare some sample weights or the preweighed material on a certified scale and calibrate as described in the next paragraph.

Page 25

SET

FUN

CaL1br

SET

FUN

ParaN

CaL

123450

PRG

SET

SET FUN

PRG

120000

CAL

Enter Load Value

PRG

With unload scale

Load Weight

CALIBRATION

The calibration described herein should be performed with the use of sample masses and/or product pre-weighed on a weighing scale.

Before proceeding with the calibration of the full scale, always perform the zero calibration.

During the calibration phase, the display shows the weight intermittently with the inscription CaL.

ATTENTION: If you turn off the instrument without exiting the set-up menu, the programming executed is not stored.

NOTE In the event that after calibration, the system shows linearity errors, you should verify that the weighted structure is completely free of mechanical constraints.

ZERO CALIBRATION

Perform the operation when the scale has no items (including the fixed tare), and when the weight is stable. The zero of the system is done by pressing the key 0.

The weight displayed resets and the display shows Cal alternated by 0. You can repeat this operation more times.

CALIBRATION OF FULL SCALE

Prior calibration load the sample weight on the system and wait for the stabilization; the display shows a weight value.

Press the SET key to adjust the weight. The display shows the theoretical weight value with the first digit to the left flashing. With the arrow keys, enter the actual weight loaded on the system starting from the first flashing digit. Switch to the next digit by pressing 0. The confirmation of the last digit (far right) with the PRG key corrects the weight. The display shows CAL, by altering the actual weight value entered.

If the set value is higher than the resolution offered by the instrument, the weight is not accepted and the display shows an error message for a few seconds.

This procedure can be repeated.

Press the PRG key again to return to the CaLIb. menu.

EXIT FROM CALIBRATION MENU

The exit from the menu CaLIb is performed by pressing the

key until the appearance of the message store?.

To store the new calibration and exit the setup menu, press the PRG key.

To cancel the calibration of zero and full scale:

FUN +0 it cancels the zero calibration.

FUN + SET it cancels the calibration of the full scale.

Page 26

SET

FUN

CaL1br

SET

FUN

Param

CaL

LIn P1

PRG

SET

SET FUN

PRG

12000

LIn P2

Enter Load Value P1

PRG

With unload scale

CaL

Load Weight P1



4 sec.

24000

LIn P9

Enter Load Value P2

PRG

SET FUN

120000

Enter Load Value P9

PRG

SET FUN

Load Weight P2

Load Weight P9

PRG

000000

PRG

000000

PRG

LINEARIZATION PROCESS

When planning the sample weight, values greater than the full scale, or lower than the previous point, or when the weight is not stable, are not accepted. If the entered value is accepted, it is proposed the next step, otherwise still the same.

The linearization points are automatically reset each time you change a data of the theoretical calibration or it is performed a full-scale calibration.

Page 27

SET

FUN

ParaN

SET

FUN

In-oUt

f1LtEr

Not1on

auto 0

0 trac

0 band

PRG

SET FUN

PRG

Select Value

PRG

Select Value

PRG

Enter Value

PRG

Select Value

PRG

Enter Value

PRG

0 ALL

SET FUN

PRG

Select Value

PRG

WEIGHTING PARAMETERS

The parameters in this menu allow you to adjust the timing of the acquisition and updating of the display and the manual or automatic zeroing that the transmitter performs.

F1LtEr WEIGHT FILTER

This parameter adjusts the refresh speed of the display and the serial and analog output.

Low values of the filter speed up the display refresh.

High values of the filter slow down the display refresh.

Value Update Response

0 50 Hz 25 Hz 1 50 Hz 16 Hz 2 25 Hz 8 Hz 3 25 Hz 5 Hz 4 25 Hz 2.5 Hz 5 10 Hz 1.5 Hz 6 10 Hz 1 Hz 7 10 Hz 0.7 Hz 8 5 Hz 0.4 Hz 9 5 Hz 0.2 Hz

Default: 5

Notion WEIGHT STABILITY

This parameter defines the divisions number needed to deem the weight stable.

A large number of divisions allows the transmitter to detect quickly the weight stability, which is needed when executing tare and print commands.

Value Change

0 Always stable weight

1 Stability determined quickly

2 Stability determined with medium parameters

3 Stability determined accurately

4 Stability determined with the highest accuracy

Default: 2

Auto 0 AUTOZERO UPON SWITCHIN ON

This parameter defines the value of the maximum resettable weight when the instrument is switched on.

This operation corresponds to a zero calibration of the system and is executed only if the weight is stable and below the set value.

Value from 0 to the value of the CAPAC parameter. Default: 0

Page 28

SET

FUN

ParaN

SET

FUN

In-oUt

f1LtEr

Not1on

auto 0

0 trac

0 band

PRG

SET FUN

PRG

Select Value

PRG

Select Value

PRG

Enter Value

PRG

Select Value

PRG

Enter Value

PRG

0 ALL

SET FUN

PRG

Select Value

PRG

0 trAc TRACKING THE ZERO

This function allows you to perform a momentary zero calibration compensating for the temperature drift of the weight.

When you switch off the transmitter, it automatically returns to the previous zero calibration.

The maximum weight resettable by this parameter is 2% of the range of the system.

To disable this feature, use the value 0.

Value Change

0 Control OFF

1 0.5 div/sec

2 1 div/sec

3 2 div/sec

4 3 div/sec

Default: 0

0 band ZERO BAND

This parameter defines the number of divisions resettable by the pressure of the front button of zero or by Input 1.

Values: from 0 to 200 Default: 100

0 ALL ZERO CAL

Enables the function that allows to perform zero calibration by pressing and holding the 0 key or input 1 for 5 sec.

Value: Off Function disabled On Function Enabled Default: Off

Page 29

SET

FUN

In-oUt

SET

FUN

SEr1aL

NodE 1

PRG

SET FUN

PRG

Select Value

Hyst-1

t1NEr1

dELay1

NodE 2

SET FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Hyst-2

t1NEr2

dELay2

tEst1n

tstoUt

SET FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Read and

change status

Read and

change status

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

INPUT/OUTPUT PARAMETERS

NodE 1 SETPOINT 1 OPERATION MODE

Select 4 operation criteria of the setpoint 1 in sequence:

NET The relay output is active in Net Weight mode GROSS The relay output is active in Gross Weight mode PEAK The relay output is active in Peak mode Default: GROSS

Comparison with the net weight, gross weight or the peak. In this last case, the comparison is made with the last peak value acquired, even when the peak function is not active.

N.O. The relay 1 is normally open N.C. The relay 1 is normally closed Default N.O. POS. The output is operating with positive weight NEG. The output is operating with negative weight Default: POS NORML Output 1 is active with unstable weight STABL The output is active with stable weight Default: Norml

Hyst-1 HYSTERESIS OF THE SETPOINT 1

Hysteresis value than the setpoint value set.

Value: from 0 to 999 Default: 2

t1NEr1 SETPOINT 1 TEMPORIZATION

Value of time, in tenths of a second, during which, when the weight value set is overcome, the output relative to setpoint 1 remains enabled.

After this time, even if the weight value is still above the setpoint, the output is automatically disabled.

The function is not activated if the programmed time is equal to zero.

Value: from 0 to 999 Default: 0

dELay1 SETPOINT 1 DELAY

Value of time, in tenths of a second, after which, when the weight value set is overcome, the output relative to setpoint 1 remains enabled.

The function is not activated if the programmed time is equal to zero.

Value: from 0 to 999 Default: 0

Page 30

SET

FUN

In-oUt

SET

FUN

SEr1aL

NodE 1

PRG

SET FUN

PRG

Select Value

Hyst-1

t1NEr1

dELay1

NodE 2

SET FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Hyst-2

t1NEr2

dELay2

tEst1n

tstoUt

SET FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Read and

change status

Read and

change status

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

NodE 2 SETPOINT 2 OPERATION MODE

Select 4 operation criteria of the setpoint 2 in sequence:

NET The relay output is active in Net Weight mode GROSS The relay output is active in Gross Weight mode PEAK The relay output is active in Peak mode Default: GROSS

Comparison with the net weight, gross weight or the peak. In this last case, the comparison is made with the last peak value acquired, even when the peak function is not active.

N.O. The relay 2 is normally open N.C. The relay 2 is normally closed Default N.O. POS. The output is operating with positive weight NEG. The output is operating with negative weight Default: POS NORML Output 2 is active with unstable weight STABL Output 2 is active with stable weight Default: Norml

Hyst-2 HYSTERESIS OF THE SETPOINT 2

Hysteresis value than the setpoint value set

Value: from 0 to 999 Default: 2

t1NEr2 SETPOINT 2 TEMPORIZATION

Value of time, in tenths of a second, during which, when the weight value set is overcome, the output relative to setpoint 2 remains enabled.

After this time, even if the weight value is still above the setpoint, the output is automatically disabled.

The function is not activated if the programmed time is equal to zero.

Value: from 0 to 999 Default: 0

dELay2 SETPOINT 2 DELAY

Value of time, in tenths of a second, after which, when the weight value set is overcome, the output relative to setpoint 2 remains enabled.

The function is not activated if the programmed time is equal to zero.

Value: from 0 to 999 Default: 0

Page 31

SET

FUN

In-oUt

SET

FUN

SEr1aL

NodE 1

PRG

SET FUN

PRG

Select Value

Hyst-1

t1NEr1

dELay1

NodE 2

SET FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Hyst-2

t1NEr2

dELay2

tEst1n

tstoUt

SET FUN

PRG

Enter Value

PRG

Enter Value

PRG

Enter Value

PRG

Read and

change status

Read and

change status

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

tEst1n LOGIC INPUTS TEST PROCEDURE

The display shows the inputs status.

0 = input disabled

1= input activated.

The input 1 corresponds to the 1a value on the left.

Enable and disable the inputs to check the corresponding state on the display. During this procedure, the normal function of the inputs is not active. Use this procedure only to check the hardware.

tstoUt LOGIC OUTPUTS TEST PROCEDURE.

The display shows the outputs status.

0 = output disabled, 1= output activated.

The input 1 corresponds to the 1a value on the left.

During this procedure, the LEDs reflect the state of the outputs. To set the digits, use the keys as for the numeric settings.

During this procedure, the normal function of the outputs is not active. Use this procedure only to check the hardware.

Page 32

SET

FUN

SEr1aL

SET

FUN

Config

baUdr

prot-1

prot-2

PRG

SET FUN

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

AddrEs

SET FUN

PRG

Enter Value

PRG

SERIAL OUTPUT PARAMETERS

This menu allows you to set the serial ports COM1 and COM2 and the communication parameters. The instrument has two independent serial ports:

COM1 with RS232 or RS422/RS485 interface

COM2 with optional FIELDBUS interface.

baUd r BAUD RATE COM1

It defines the baudrate of the RS232 serial port.

The value must be set to the same value of the PC / PLC or remote display.

Value to be selected:

2400 9600 19200 38400 115200 Default: 9600

baud2r BAUD RATE COM2 (DEVICENET VERSION)

It defines the baudrate of the DEVICENET interface.

The value must be set to the same value of the PC/PLC.

Value to be selected:

125 250 500 DeviceNet

Default:

125 DeviceNet

Prot-1 COM1 PROTOCOL

It defines how to use the RS232 serial port

None: Serial communication OFF

Contin: Continuous transmission of the weight string. It can be used,

for example, to drive a weight repeater. See details in the relevant paragraph.

Demand: When the Operator presses the front button or through Input 2, a string of weight is transmitted. The command is accepted if the weight is stable. Between two consecutive transmissions the weight must have a variation of at least 20 divisions.

Autom-: It’s automatically transferred to a string of weight when the weight stabilizes at a value higher than the minimum weight (20 divisions). Between two consecutive transmissions, the weight must have a variation of at least 20 divisions.

Slave: ASCII protocol. See details in the relevant paragraph.

Page 33

SET

FUN

SEr1aL

SET

FUN

Config

baUdr

prot-1

prot-2

PRG

SET FUN

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

AddrEs

SET FUN

PRG

Enter Value

PRG

Modbus: MODBUS RTU (slave) protocol. used only if PROT-2 is configured equal NONE. See details in the relevant paragraph. Selectable communication patrameters:

n-8-1 n-8-2 E-8-1 o-8-1 Default: n-8-1

Print: Data transfer to the printer.

Value to be selected: None Contin Demand AutomSlave Modbus Print Default: None

Prot-2 COM2 PROTOCOL:

It defines the Fieldbus use mode

None: Serial communication OFF

PROFIB: PROFIBUS fieldbus (if there is an optional board)

DEVNET: DEVICENET fieldbus (if there is an optional board)

Value to be selected: None Profib Devnet

Default: None

Page 34

SET

FUN

SEr1aL

SET

FUN

Config

baUdr

prot-1

prot-2

IP-Add

subnEt

dELay

rEN-Co

t-NAP

r-Nap

dELNap

PRG

SET FUN

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Enter Value

PRG

Remote

connection

PRG

data F

SET FUN

PRG

Enter Value

PRG

trasNEnd-oh

rECEIV End-oh

ErasE End-oh

PRG

IP-Ad1

PRG

000

123

PRG

Enter Value

SET FUN

IP-Ad4

PRG

…

PRGPRG

…

SnEt 1

PRG

000

123

PRG

Enter Value

SET FUN

SnEt 4

PRG

…

PRGPRG

…

AddrEs

SET FUN

PRG

Enter Value

PRG

AddrEs COM1 SERIAL COMMUNICATION ADDRESS

Configuration of the address used in the transmission protocols and in the MODBUS protocol.

Value from 000 to 99. Default:01

Pr-Add PROGRAMMING OF THE PROFIBUS ADDRESS

Configuration of the address used in the PROFIBUS protocol.

Values: from 0 to 126 Default: 01

dC-Add PROGRAMMING OF THE DEVICENET ADDRESS

Programming of the address used in DEVICENET protocol.

Value: from 0 to 63

Default:01

dELay DELAYED RESPONSE OF THE SLAVE AND MODBUS RTU COM1

PROTOCOLS

Indicative delay of the response string used in the SLAVE protocol. (expressed in 1/100 sec., max 1 sec).

This value is expressed in milliseconds and represents the delay with which the instrument sends the response to the request received from the master.

Value: from 0 to 999 msec Default: 000

Page 35

SET

FUN

SEr1aL

SET

FUN

Config

baUdr

prot-1

prot-2

IP-Add

subnEt

dELay

rEN-Co

t-NAP

r-Nap

dELNap

PRG

SET FUN

PRG

Select Value

PRG

Select Value

PRG

Select Value

PRG

Enter Value

PRG

Remote

connection

PRG

data F

SET FUN

PRG

Enter Value

PRG

trasNEnd-oh

rECEIV End-oh

ErasE End-oh

PRG

IP-Ad1

PRG

000

123

PRG

Enter Value

SET FUN

IP-Ad4

PRG

…

PRGPRG

…

SnEt 1

PRG

000

123

PRG

Enter Value

SET FUN

SnEt 4

PRG

…

PRGPRG

…

AddrEs

SET FUN

PRG

Enter Value

PRG

rEN-Co REMOTE COMMUNICATION

It enables communication with a PC for the setting via the PC program

data F REMOTE COMMUNICATION

Parameters of the serial COM1 protocols (parity, bits n., stop bits) except MODBUS.

t-Nap SENDING DATA TO THE PC

This function allows to transfer the mapping of the registers from the DAT 500 instrument to the PC program. Before starting the transmission of the mapping, you should enable the reception of the map (Receive button) on the PC program. During transmission, the display of the instrument displays TRASM, at the end of the transmission it shows END-OK.

To end the mapping transferring process, press the key 0.

r-Nap RECEIVING DATA FROM THE PC

This function allows to receive the registers mapping from the PC program.

Before starting the mapping transmission in the PC (Send key), the receiving function must be enabled on the DAT 500 by pressing the PRG key. When receiving, the display shows RECEIV, at the end of the receiving it shows END-OK. To end the process of mapping transferring, press the 0 key.

dELNap DATA RESET

This function allows you to restore the default mapping of the instrument, while restoring the default mapping of the instrument, ERASE is displayed.

Page 36

SET

FUN

AnaLoG

f-sCaL

NodE

AnzEro

tEst

ranGE

offsEt

ConF1G

PRG

SET FUN

SET

FUN

PRG

Enter Value

PRG

Select Value

PRG

Enter Value

PRG

Select Value

PRG

Select Value

PRG

-0-

-Fs-

PRG

SET FUN

Set Offset

ANALOG - ANALOG OUTPUT PARAMETERS (DAT 500/A ONLY)

F-SCaL FULL SCALE

It’s the weight corresponding to the full scale of the analog output that can be different from the capacity of the weighting system.

Value to be set from 000 to 99999. Default: the same value of the CAPACITY parameter

NodE ANALOG OUTPUT OPERATION MODE

Selection of the value to be associated to the analog output, corresponding to the net weight, gross weight or the peak value.

Value to be selected: NET GROSS PEAK Default: GROSS

AnZEro ZERO VALUE OF THE ANALOG OUTPUT

Analog value related to the full scale of the analog output to be subtracted.

tEst ANALOG OUTPUT TEST PROCEDURE

With this procedure it is possible to check the operation of the analog output, causing the output value through the use of the keyboard.

The display shows the percentage of the output value than the full scale set.

Use the SET and

FUN

keys to increase/decrease the output value.

ranGE ANALOG OUTPUT RANGE

Select the analog output range.

Value to be selected: 0÷20mA 4÷20mA 0÷10Vdc 0÷5Vdc Default: 4÷20mA

Page 37

SET

FUN

AnaLoG

f-sCaL

NodE

AnzEro

tEst

ranGE

offsEt

ConF1G

PRG

SET FUN

SET

FUN

PRG

Enter Value

PRG

Select Value

PRG

Enter Value

PRG

Select Value

PRG

Select Value

PRG

-0-

-Fs-

PRG

SET FUN

Set Offset

offsEt ADJUSTING THE OFFSET (CALIBRATION)

Measure the analog output value with a multimeter to perform the calibration of zero (0) and full scale (FS).

Use the

SET

and

FUN

keys to adjust the analog output. Press and

hold down the key for a rapid change.

Press the

key to toggle between offset of zero and that of full

scale.

Press the

PRG

key to return to the OFFSET sub-menu. Press the

key to return to the ANALOG menu.

Page 38

SERIAL COMMUNICATION PROTOCOLS

CONTINUOUS, AUTOMATIC AND MANUAL TRANSMISSION PROTOCOL

These protocols have been programmed into their programming menu.

The string is transmitted as follows:

STX <status> <net weight> <gross weight> <peak> ETX <chksum> EOT

Where

STX (start of text) = 0x02h

ETX (end of text) = 0x03h

EOT (end of transmission) = 0x04.

<status> = an ASCII character that can take the following values:

“S” = stable weight.

“M” = weight that is not stable (moving).

“O” = weight greater than the maximum capacity.

“E” = weight that cannot be detected.

<net weight> = field consisting of 6 ASCII characters of net weight.

<gross weight> = field consisting of 6 ASCII characters of gross weight.

<peak> = field consisting of 6 ASCII characters of peak.

<chksum> = 2 ASCII control characters calculated considering the characters between STX and ETX excluded. The control value is obtained by executing the operation of XOR (or exclusive) of the 8-bit ASCII codes of the characters considered. The result is a character that is expressed in hexadecimal with 2 digits that can take values from “0” to “9” and “A” to “F”.

<chksum> is the ASCII encoding of the two hexadecimal digits.

In the case of continuous communication protocol, the given string is transmitted at a frequency of 10 Hz, regardless of the weight filter selected.

In the case of automatic and manual communication protocols, between 2 weight transmissions, the weight must have a variation corresponding at least 20 divisions.

SLAVE TRANSMISSION PROTOCOL

LIST OF THE CONTROLS AVAILABLE:

• Request for the net and gross weight and current peak.

• Change in gross weight.

• Change in net weight.

• Command of reset or automatic calibration or peak reset.

• Programming the two setpoints of weight

• Requesting the programmed setpoints.

• Control of setpoints storage in permanent memory.

The unit connected to the instrument (typically a personal computer) acts as a MASTER and is the only unit that can start a process of communication.

The process of communication must be made by the transmission of a string by the MASTER, followed by a reply from the SLAVE concerned.

Page 39

CONTROLS FORMAT DESCRIPTION:

The double quotes enclose constant characters (observe upper and lower case); the <and> symbols contain variable numeric fields.

REQUEST FOR THE NET AND GROSS WEIGHT AND CURRENT PEAK

Master: <Addr> “N” EOT

DAT 500: “N” <Addr> <status> <net> <gross> <peak> ETX <chksum> EOT

CHANGE IN GROSS WEIGHT

Master: <Addr> “C” “L” EOT

DAT 500: <Addr> “C” “L” ACK EOT

CHANGE IN NET WEIGHT

Master: <Addr> “C” “N” EOT

DAT 500: <Addr> “C” “N” ACK EOT

COMMAND OF RESET OR AUTOMATIC CALIBRATION OR PEAK RESET

Master: <Addr> “A” “A” EOT

DAT 500: <Addr> “A” “A” ACK EOT

PROGRAMMING TWO WEIGHT SETPOINS

Master: <Addr> “S” <s1> <s2> ETX <csum> EOT

DAT 500: <Addr> “S” ACK EOT

REQUESTING FOR THE PROGRAMMED SETPOINT

Master: <Addr> “R” EOT

DAT 500: <Addr> “R” <s1> <s2> ETX <csum> EOT

STORING THE WEIGHT Setpoint IN A PERMANENT MANNER

Master: <Addr> “M” EOT

DAT 500: <Addr> “M” ACK EOT

In the case of communication error or otherwise unrecognized command from DAT 500, it will respond with the following string:

DAT 500: <Addr> NAK EOT

FIELDS DECRIPTION

The double quotes enclose constant characters (observe upper and lower case); the <and> symbols contain variable numeric fields.

<addr> = Serial communication address of the instrument; it is the ASCII character obtained by adding 80h to the number of address (i.e. address 1: <Addr> = 80h + 01h = 81h).

<csum> = checksum of the string data. It is calculated by performing the exclusive OR (XOR) of all characters from <Addr> to ETX excluded the latter; the result of the XOR is decomposed into 2 characters by considering separately the upper 4 bits (first character) and lower 4 bits (second character); the 2 characters obtained are then ASCII encoded (example: XOR = 5Dh; <csum> = “5Dh” namely 35h and 44h).

ETX (end of text) = 0x03h,

EOT (end of transmission) = 0x04h,

ACK (acknowledgment) = 0x06h,

NAK (No acknowledgment) = 0x15h.

Page 40

<status> = an ASCII character that can take the following values:

“S” = stable weight

“M” = weight that is not stable (moving)

“O” = weight greater than the maximum capacity

“E” = weight that cannot be detected.

<s1>...<s2> = 6 ASCII characters of setpoint.

<net weight> = 6 ASCII characters of net weight.

<gross weight> = 6 ASCII characters of gross weight.

<peak> = 6 ASCII characters of peak.

If the request is made cyclically, the weight is acquired with a maximum frequency of:

Frequency Baud Rate

200Hz 115200

50Hz 38400 35Hz 19200 25Hz 9600

8Hz 2400

Page 41

MODBUS RTU PROTOCOL

The addresses listed in the tables below follow the standard address specified in the guidelines of the Modicon PI-MBUS-300. Below please find an excerpt that helps the user to communicate with the instrument.

“All data addresses in Modbus messages are referenced to zero. The first occurrence of a data item is addressed as item number zero. For example:

The coil known as ‘coil 1’ in a programmable controller is addressed as coil 0000 in the data address field of a Modbus message.

Coil 127 decimal is addressed as coil 007E hex (126 decimal). Holding register 40001 is addressed as register 0000 in the data address field of the message. The

function code field already specifies a ‘holding register’ operation. Therefore the ‘4XXXX’ reference is implicit.”

To confirm a new value in E2prom, run the function of MAKE – BACKUP. If this function is not performed by switching off, the DAT will return to the value before the change.

If not specified otherwise, the numerical values (such as addresses, codes and data) are expressed as decimal values .

For any hardware configuration of the instrument (FIELDBUS or Analog), the MODBUS RTU protocol is always available on COM1 RS232; in the event of Fieldbus absence, the MODBUS RTU protocol is also available on COM2 RS485.

INSTRUMENT RESPONSE TIMES

In order to respond to most requests, the instrument takes a maximum time of 20 msec.

Exceptions are:

• the e2prom Backup command (max time = 350mSec.)

• writing of the registers of the cells capacity, cells sensitivity, net weight, system calibration, filter (max time = 550mSec).

COMMUNICATION ERRORS HANDLING

The communication strings are controlled by the CRC (Cyclic Redundancy Check). In the case of a communication error, the slave does not respond with a string. The master must consider a timeout for the receipt of the response. In case of no answer, a communication error has occourred.

RECEIVED DATA ERROR HANDLING

In the case of string received correctly, but that cannot be executed, the slave responds with an EXCEPTION RESPONSE according to the following table.

Code Description

1 ILLEGAL FUNCTION (The function is not valid or not supported) 2 ILLEGAL DATA ADDRESS (The address of the specified data is not available) 3 ILLEGAL DATA VALUE (The received data have invalid value)

Page 42

SUPPORTED FUNCTIONS

Function Description

01 READ COIL STATUS (Reading the state of the logic outputs) 02 READ INPUT STATUS (Reading the state of the logic inputs) 03 READ HOLDING REGISTERS (Reading the programmable registers) 04 READ INPUT REGISTERS (Reading the “read only” registers”) 05 FORCE SINGLE COIL (Writing the status of each output) 06 PRESET SINGLE REGISTER (Writing a programmable register) 15 FORCE MULTIPLE COILS (Multiple writing of outputs) 16 PRESET MULTIPLE REGISTERS (Multiple writing of registers)

Funct + 80h EXCEPTION RESPONSE

Page 43

LIST OF THE MODBUS PROTOCOL HOLDING REGISTERS

Addres Holding Register R/W Format Note

40001 Status Register R INT See table A 40002 Gross weight (MSB) R

DINT

40003 Gross weight (LSB) R 40004 Net weight (MSB) R

DINT

40005 Net weight (LSB) R 40006 Peak value (MSB) R

DINT

40007 Peak value (LSB) R 40008 Load cell signal in mV/V R INT 40009 Logic inputs R INT LSB = Input 1 40010 Output R/W INT LSB = Output 1 (it writes only if the setpoint = 0) 40011 Keys status R INT See table B, even if the key lock is enabled 40012 Firmware code and version R INT See table C 40201 Setpoint 1 (MSB) R/W

DINT

40202 Setpoint 1 (LSB) R/W 40203 Setpoint 2 (MSB) R/W

DINT

40204 Setpoint 2 (LSB) R/W 40501 Data Register (MSB) W

DINT

Data related to the Command Register 40502 Data Register (LSB) W 40503 Command Register W INT See table D 41001 Cells capacity (MSB) R/W

DINT

41002 Cells capacity (LSB) R/W 41003 Cells sensitivity R/W INT 41004 Weight division value R/W INT See table E 41005 Tare of the system (MSB) R/W

DINT

41006 Tare of the system (LSB) R/W 41007 System capacity (MSB) R/W

DINT

41008 System capacity (LSB) R/W 41101 Weight filter R/W INT 0-9 41102 Weight stability R/W INT 0-4 41103 Auto-zero setpoint in % (MSB) R/W

DINT

0-100%. 41104 Auto-zero setpoint in % (LSB) R/W 41105 Zero tracking R/W INT 0-4 41106 Zero band in divisions R/W INT 41201 Operation mode Set 1 R/W INT See table F 41202 Hysteresis Set 1 (MSB) R/W

DINT

41203 Hysteresis Set 1 (LSB) R/W 41204 Timer Set 1 R/W INT 41205 Delay Set 1 R/W INT 41206 Operation mode Set 2 R/W INT See table F 41207 Hysteresis Set 2 (MSB R/W

DINT

41208 Hysteresis Set 2 (LSB) R/W 41209 Timer Set 2 R/W INT 41210 Delay Set 2 R/W INT 41401 Analog full scale (MSB) R/W

DINT

41402 Analog full scale (LSB) R/W 41403 Analog mode R/W INT See table G 41404 Analog range R/W INT See table H

41405 Analog output value R/W INT

Points of analog output (da 0 a 65535).Analog output

uses this value only if FS (41402) = 0

42000 Monitor Register W INT

The programmed value is automatically copied to

Monitor Register R (42100)

42100 Monitor Register R INT

Copy of the value entered in Monitor Register W

(42000)

Page 44

TABLE A - REGISTER STATUS CODING

BIT 13 12 11 10 9 8 6 5 4 3 2 1 0

Description

Output 2Output 1Input 2Input 1Memory

Flag

Lock

keyboard

Off

Range

Over-

load

Under-

load

Tare

entered

Zero

band

Stable weignt

Zero

center

WARNING: Bits 15, 14 and 7 are not managed and are always equal to 0.

OPERATION Flag memory (bit 9): When modifying a register that requires saving in the E2prom (see table “Data stored in memory with the command 0x020” on the next page), this bit is set to 1 to remind the user to run the command 0x0020 (saving data in the permanent memory). After performing this operation, the bit is automatically reset to zero.

OPERATION Bit related to a weight error (bit 6 of the STATUS REGISTER) When the cell is disconnected or the measured values are out of range, this bit is set to 1.

OPERATION Bit related to the Band of zero (bit 2 of the STATUS REGISTER) When the gross weight is less than or equal to the parameter “Band of zero in divisions”, bit 2 of the status register is set to 1.

TABLE B - KEYS CODING (40011)

bit Keys Status

0 SET key 1 FUN key 2 0 key 3 PRG key

WARNING: Bits 4 to 15 are not managed and are always equal to 0.

TABLE C - FIRMWARE CODING

bit Firmware Code

0…7 Version code

8…15 Firmware code

TABLE D- COMMAND REGISTER CODING TABLE FOR MODBUS PROTOCOL

0x0000 No command 0x0001 Semiautomatic zero 0x0002 Autotare 0x0003 Peak reset 0x0010 Calibration of the weight zero 0x0011 Calibration of the full weight scale 0x0020 Saving the data in the permanent memory

0x7FFF Direct access to memory

TABLE E- CODING DIVISION VALUE

Division value 0.001 0.002 0.005 0.00 0.02 0.05 0.1 0.2 0.5

Division value 1 2 5 10 20 50

Page 45

Addr. of Modbus register Data stored in memory with the 0x0020 command

41001-41002 Cells capacity

41003 Cells sensitivity

41004 Weight division value 41005-41006 Tare of the system 41007-41008 System capacity

41101 Weight filter

41102 Weight stability 41103-41104 Auto-zero setpoint

41105 Zero tracking

41106 Zero band in divisions

41201 Operation mode Set 1 41202-41203 Hysteresis Set 1

41204 Timer Set 1

41205 Delay Set 1

41206 Operation mode Set 2 41207-41208 Hysteresis Set 2

41209 Timer Set 2

41210 Delay Set 2 41401-41402 Analog full scale

41403 Analog mode

41404 Analog range

TABELLA F - WEIGHT SETPOINT OPERATION CODING

bit Setpoint operation mode

0…1 0 = Net weight, 1 = Gross weight, 2 = Peak

2 0 = N.O. 1 = N:C. 3 0 = Positive values 1 = Negative values 4 0 = Always controlled 1 = Only with stable weight

EXAMPLE: CALIBRATION FUNCTION VIA MODBUS

To perform the calibration of full scale (that require the weight value in the sample set in the data register), the value in the data register must be present when the command register is programmed. For example:

Calibrate the full scale using a sample weight of 2000 kg.

Write 2000 in the data register.

Write 0x0011 in the command register.

Use the multiple registers write function and write the registers of data register and command register in a single command.

Page 46

FIELDBUS PROTOCOL

FIELDBUS data exchange takes place on two separate memory areas, which are described in the tables below.

WARNING:

The “Input Data Area” and the “Output Data Area” are of 128 bytes

To transfer the parameters of the Output Data Area to the instrument you need to enable direct access to the memory, writing the hexadecimal value 0x7FFF in the Command Register (1 word in writing) in order to avoid that the instrument resets all its variables in the case of uninitialized Output Data Area

This command must be sent before the connection to inform the instrument that the parameters have been initialized by the master. Now, the instrument continually tests the changes made to the parameters and stores them only in case of real change.

INPUT DATA AREA

ADDRES

Description Format NoteByte Bit

0 0 Keyboard_Look BOOL See table A Page 44 0 1 Memory_Flag BOOL See table A Page 44 0 2 Input_1 BOOL See table A Page 44 0 3 Input_2 BOOL See table A Page 44 0 4 Output_1 BOOL See table A Page 44 0 5 Output_2 BOOL See table A Page 44 0 6 Spare BOOL See table A Page 44 0 7 Spare_1 BOOL See table A Page 44 1 0 Center_of_Zero BOOL See table A Page 44 1 1 Stable_Weight BOOL See table A Page 44 1 2 Zero_Band BOOL See table A Page 44 1 3 Tare_entered BOOL See table A Page 44 1 4 Under_Load BOOL See table A Page 44 1 5 Over_Load BOOL See table A Page 44 1 6 Off_Range BOOL See table A Page 44 2 0 Gross_Weight DINT 6 0 Net_Weight DINT 10 0 Peak_Weight DINT 14 0 Load_Cells_Signal_mV_V INT 16 0 Input_Status INT 18 0 Output_Status INT 20 0 Not used BYTE 21 0 SET_Key BOOL See table B Page 44 21 1 FUN_Key BOOL See table B Page 44 21 2 0_Key BOOL See table B Page 44 21 3 PRG_Key BOOL See table B Page 44 22 0 Cod_Firmware BYTE See table C Page 44

Page 47

23 0 Cod_Versione BYTE See table C Page 44 24 0 SP_1 DINT 28 0 SP_2 DINT 32 0 Load_Cell_Capacity DINT 36 0 Load_Cell_Sensitivity INT 38 0 Weight_Division_Value INT 40 0 Tare_of_the_System DINT 44 0 Capacity_of_the_System DINT 48 0 Filter_Value INT 50 0 Weight_Stability_value INT 52 0 Autozero_Set DINT 56 0 Tracking_Factor INT 58 0 Zero_Band INT 60 0 Not used BYTE 61 0 Set_1_Net_Weight BOOL See table F Page 45 61 1 Set_1_Gross_Weight BOOL See table F Page 45 61 2 Set_1_NO_NC BOOL See table F Page 45 61 3 Set_1_Pos_Neg_Values BOOL See table F Page 45 61 4 Set_1_Control BOOL See table F Page 45 62 0 Set_1_Hysteresys DINT 66 0 Set_1_Timer INT 68 0 Set_1_Delay INT 70 0 Not used BYTE 71 0 Set_2_Net_Weight BOOL See table F Page 45 71 1 Set_2_Gross_Weight BOOL See table F Page 45 71 2 Set_2_NO_NC BOOL See table F Page 45 71 3 Set_2_Pos_Neg_Values BOOL See table F Page 45 71 4 Set_2_Control BOOL See table F Page 45 72 0 Set_2_Hysteresys DINT 76 0 Set_2_Timer INT 78 0 Set_2_Delay INT 80 0 Monitor_Register INT

READING EXAMPLE

To read the gross weight on the DAT 500 it is needed to read the addresses from 2 to 5 of the Input Area.

To read the net weightit is needed to read the addresses from 6 to 9 of the Input Area.

Whwn the display shows the gross weight value of 12351 in the corresponding bytes there will be:

Byte 2 Byte 3 Byte 4 Byte 5

Hex 00 00 30 3F

Page 48

OUTPUT DATA AREA

Dirección

Descripción Formato NoteByte Bit

128 0 Command_Register INT See table D Page 44 130 0 Logic_Output INT 132 0 SP_1 DINT 136 0 SP_2 DINT 140 0 Data_Register DINT 144 0 Load_Cell_Capacity DINT 148 0 Load_Cell_Sensitivity INT 150 0 Weight_Division_Value INT See table E Page 44 152 0 Tare_of_the_System DINT 156 0 Capacity_of_the_System DINT 160 0 Filter_Value INT 162 0 Weight_Stability_value INT 164 0 Autozero_Set DINT 168 0 Tracking_Factor INT 170 0 Zero_Band INT 172 0 Not used BYTE 173 0 Set_1_Net_Weight BOOL See table F Page 45 173 1 Set_1_Gross_Weight BOOL See table F Page 45 173 2 Set_1_NO_NC BOOL See table F Page 45 173 3 Set_1_Pos_Neg_Values BOOL See table F Page 45 173 4 Set_1_Control BOOL See table F Page 45 174 0 Set_1_Hysteresys DINT 178 0 Set_1_Timer INT 180 0 Set_1_Delay INT 182 0 Not used BYTE See table F Page 45 183 0 Set_2_Net_Weight BOOL See table F Page 45 183 1 Set_2_Gross_Weight BOOL See table F Page 45 183 2 Set_2_NO_NC BOOL See table F Page 45 183 3 Set_2_Pos_Neg_Values BOOL See table F Page 45 183 4 Set_2_Control BOOL See table F Page 45 184 0 Set_2_Hysteresys DINT 188 0 Set_2_Timer INT 190 0 Set_2_Delay INT 192 0 Monitor_Register INT

WRITING EXAMPLES

To write the set-up parameters following the example:

In the byte 128 (Command Register) write value Hex 7FFF. This value opens the writing area of the DAT 500.

Page 49

Example: to change the default values of the DAT 500 like the Capacity of the load cells, the Sensitivity and Division value to 15000, 2.9965 and 2:

Capacity Byte 144 Byte 145 Byte 146 Byte 147

Hex 00 00 3A 98 Dec 15000

Sensitivity Byte 148 Byte 149

Hex 75 0D Dec 29965

Division Byte 150 Byte 151

Hex 00 0D

Dec 13 Save the data by writing the value Hex 20 in Command Register.

N.B. The DAT 500 does not accept writing of the same values already written.

To perform Zero and FS Calibration it is not needed to abilitate the internal Writing Area of the DAT 500.

Zero Calibration:

Whit empty system put Hex 10 in Command Register (byte 128). The new Zero value is stored.

Full Scale Calibration:

Put a know weight on the system and write its value in the Data Register (from byte 140 to 143). Put value Hex 11 in Command Register. The weight value will be displayed.

Page 50

TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE SOLUTION

The display shows the

O-L message

The weight is not detectable because

the cell is absent or incorrectly

connected

Check the connections of the cells.

The display shows the

hyphen in the upper

display

The weight cannot be shown

because it exceeds the available five

digits or is greater than the capacity

of the cells.

The display shows

the underscore on the

lower display.

The weight cannot be shown

because negative, more than -9999.

The number of

decimal places is

wrong.

Incorrect division value selected.

Select the correct division value in

the main menu.

The serial

communication does

not work properly.

Installation wrong.

The selection of the operation of the

serial interface is incorrect.

Check the connections as described

in the installation manual.

Select the settings as appropriate.

The function of

semiautomatic zero

doesn’t work.

The gross weight exceeds the action

limit of semi-automatic zero.

The weight doesn’t stabilize.

To re-establish the zero, calibrate the

weight.

Wait for the stabilization of the

weight or adjust the weight filter

parameter.

The semiautomatic

tare function does not

work.

The gross weight is negative or

exceeds the maximum capacity.

The weight doesn’t stabilize.

Check the gross weight.

Wait for the stabilization of the

weight or adjust the weight filter

parameter.

Page 51

“0 Vdc”

GROUNDING CONNECTIONS DAT-500

1: Silo.

2: Load cell Accessory.

3: Junction Box.

4: DAT indicator.

A: Load receptor-base Earthing.

B: Accessory Earthing.

C: Junction Box Earthing.

D: DAT indicator Earthing.

Page 52

Intrinsic Safety Barriers

FUNCTION

BARRIER TYPE

QTY

Z961H

Z966H

Z961H

+/- Signal

+/- Exc.

+/- Sense

HAZARDOUS AREA

- Sig

+ Sig

- Exc

- Sens

+ Sens

+ Exc

- Exc

+ Sig

- Sig

+ Exc

- Exc

+ Sig

- Sig

+ Exc

- Exc

+ Sig

- Sig

+ Exc

- Exc

+ Sig

- Sig

SAFE AREA

Z961H

Z966H

Z961H

- Signal

+ Signal

- Exc.

+ Exc.

- Sense

+ Sense

- Signal

+ Signal

- Exc.

+ Exc.

- Sense

+ Sense

- Exc.

+ Exc.

+ Sens

- Sens

- Sig

+Sig

Model 500

Digital / Analog Transmitter

Summing Junction Box

PEPPERL & FUCHS

Intrinsic Safety Barriers

FUNCTION

COLOR

+ Exc.

Green

+ Sense

Blue

 Exc.

Black

 Sense

Yellow

+ Signal

Red

 Signal

White

Shield

GND

Page 53

OPTION 24 VOLT POWER SUPPLY

INSTALLATION

• Make sure the installation complies with local regulations and electrical codes.

• Connect AC voltage to the terminals marked “L” and “N”.

• A red LED is illuminated when the power supply is “ON”.

• The DC voltage is available on the terminals marked “+” and “-”. The second set of Terminals are used when powering two transmitters from a single power supply (See notes).

Notes: The power supply should be used to power two transmitters only when a single load cell is connected to each transmitter. For multiple load cell applications it is recommended that an individual power supply be used for each transmitter. This enables the power supply to compensate for any ﬂuctuations in the incoming line voltage. Recent ﬁeld experiences have shown that voltage drops of greater than 10% can cause the transmitters to drift and become unstable.

FUSE REPLACEMENT

The following procedures require work inside the power supply enclosure and should be performed by qualiﬁed service personnel.

• Before opening the unit, disconnect the AC voltage.

• Remove the front cover from the power supply.

• Press down gently on the cover of the fuse holder, and turn counter-clockwise.

• Pull out the cover and fuse as an assembly, replace fuse with a new one.

• Re-install fuse and cover as an assembly, press down gently and turn clockwise.

• Replace the front cover on the power supply.

• Re-apply AC voltage to the unit.

In the event of a malfunction, please contact the nearest distributor for assistance. Any attempt to modify or repair the power supply will void the manufacturers warranty.

L N +

230 VAC

24 VDC

Fus e

LED

PAVONE DAT 500 Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual