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ENGLISH - 7/8

 

To obtain the best resolution, select through the SW1 Dip-Switch group the input scale (among the 

four in the previous table) whose full scale is closer to and higher than the value to be measured.

 

After selecting the measurement range, it is necessary to configure via software the desired start and full 

scale within the selected range and then the current or voltage values that you want to retransmit as the 

measurement start and full scale.

 

For example: if the value to be measured is 680 V ~, then set Dip-switches SW1-1 = 

0 and SW1-2 = 1 (this corresponds to the 0-850 V ~ measuring range).

 

Using the Easy Setup software we can configure the voltage output 0 V for the start of the scale and 10V 

for the full scale so we will read 8V at the output.

 

DIP-Switch SW2 - COMMUNICATION PARAMETERS

1

 

2

 

BAUD RATE

 

3

 

4

 

5

 

6

 

7

 

8

 

COMMUNICATION ADDRESS

 

From 

software

 

Communication parameters from EEPROM(*)

 

9600 Baud

 

 

Fixed address 01

 

 

19200 Baud

 

 

Fixed address 02

 

 

 

38400 Baud

 

 

 

Fixed address 03

 

 

 

 

57600 Baud

 

 

Fixed address 04

 

X

 

X

 

X

 

X

 

X

 

X

 

Fixed address, represented as binary

 

 

 

 

 

 

 

Fixed address 63

 

(*) Note

: if DIP-switches from 1 to 8 are OFF, the communication parameters are loaded from EEprom.

 

 Sw3 - MEASUREMENT AVAILABLE ON TERMINALS 4 5 6 

1

 

Measurement available on terminals 4 5 6

 

Analogue output: retransmitted current or voltage

 

 

RS485 serial port

 

 LED SIGNALS ON THE FRONT PANEL 

LED

 

Status

 

LED meaning

 

PWR

 

On

 

Power supply on

 

Flashing

 

Internal error or out of scale

 

RX

 

On

 

Check the connection

 

Flashing

 

Receipt of packet completed

 

TX

 

Flashing

 

Transmission of packet completed

 

 BASE MODBUS REGISTERS (Holding register) 

Address

 

Name

 

Description

 

40047

 

VRMS (MSB)

 

Input voltage value (floating point, most significant bits)

 

40048

 

VRMS(LSB)

 

Input voltage value (floating point, least significant bits)

 

t

Summary of Contents for Z204-1

Page 1: ...tated data may be modified or supplemented for technical and or sales purposes INSTALLATION MANUAL Z204 1 True RMS AC DC converter with Modbus protocol on RS485 SENECA s r l Via Austria 26 35127 PADOVA ITALY Tel 39 049 8705355 8705359 Fax 39 049 8706287 For manuals in French German English and configuration software visit the www seneca it products 204 1 website EN THE ORIGINAL VERSION IS IN ITALI...

Page 2: ... 28 V 50 60 Hz Typical absorption 1 W INPUTS Voltage 0 850 V Input impedance 4 MΩ precision 0 5 Frequency 30 60 Hz Voltage 0 1200 V Input impedance 4 MΩ precision 0 5 Pass band 30 400 Hz 3 dB N B the instrument below 3 of the selected full scale does not give the correct measurement OVERVOLTAGE Category V up to 300 Vac dc Category III up to 600 Vac dc Category II up to 1000 Vac dc For voltages up ...

Page 3: ... www seneca it prodotti Z204 1 The module must be repaired and damaged parts replaced by the Manufacturer The product is sensitive to electrostatic discharges Take appropriate measures during any operation Important Obstructing ventilation slots with any object is prohibited Installing the module next to devices that generate heat is prohibited Electrical and electronic waste disposal applicable i...

Page 4: ... 14 15 16 1 With the help of a screwdriver pull the two hooks on the side of the module outwards 17 18 19 20 25 26 27 28 21 22 23 24 29 30 31 32 2 Slowly extract the module from the rail USE OF THE Z PC DINAL ACCESSORY CAUTION Do not turn the module upside down and do not force the insertion of the IDC10 connector on the Z PC DIN bus The module s rear IDC10 connector must be plugged into a free sl...

Page 5: ...RICAL CONNECTIONS WARNING BEFORE CARRYING OUT ANY INSTRUMENT CONNECTIONS MAKE SURE THAT YOU DISCONNECT ALL THE CIRCUITS SUBJECT TO A DANGEROUS VOLTAGE TO CONNECT THE HIGH VOLTAGE INPUT USE ONLY THE PLUGS SUPPLIED WITH THE INSTRUMENT Insertion of high voltage plugs The figure at the side shows the insertion points of the two 4mm banana plugs supplied with the instrument Polarity of the high voltage...

Page 6: ...ta Bus length maximum length of the Modbus network in function of the Baud Rate It is the length of the cables that connect the two modules on which the bus terminal has been inserted by means of a DIPSwitch see Diagram 1 Derivation length maximum length of a derivation see Diagram 1 Diagram 1 Module 3 DL Module 1 Module 2 Module 5 DL Derivation length Bus length MODBUS Diagram 1 BUS length Deriva...

Page 7: ...ION PARAMETERS 1 2 BAUD RATE 3 4 5 6 7 8 COMMUNICATION ADDRESS From software Communication parameters from EEPROM 9600 Baud Fixed address 01 19200 Baud Fixed address 02 38400 Baud Fixed address 03 57600 Baud Fixed address 04 X X X X X X Fixed address represented as binary Fixed address 63 Note if DIP switches from 1 to 8 are OFF the communication parameters are loaded from EEprom Sw3 MEASUREMENT A...

Page 8: ...NPUT IN A IN B Max 1200 Vdc Max 850 Vac WARNING REFERRED TO GROUND Current output Voltage output 5 4 SW3 OFF 4 20 mA The output settings can be modified by the software 5 6 SW3 OFF 0 10 V The output settings can be modified by the software FACTORY SETTINGS Default conditions for module configuration parameters Full scale 1000 V Analogue output Current 4 20 mA Communication parameters 38400 8 N 1 A...

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