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ENGLISH 7/8

MI003074-E

Segnalazione tramite LED 

Blinking
(RED)

ON
(GREEN)

Blinking
(RED)

STATUS

The module is power on

Data are being transmitted through the 
RS485 comm. port

LEDs signallings

ERR

PWR

TX

RX

LED

Segnalazione tramite LED 

LEDs signallings 

Voltage

V

A

+

Active current (1)

External power supply 
current (2)

There is no insulation between RS485 and the analog output.

34

35

35

34

36

36

+

Data are being received through the 
RS485 comm. port

At least one of the active phases’ voltage 
is less than 40 Vac

ON
(YELLOW)

DIGITAL OUTPUT

The module has a digital output: each pulse corresponds to a given number 
of increments about to the energy counter. Imax=V/R=50 mA, Vmax=28V. For more
informations, see the display settings manual.

For detailed information on RS485 serial interface, consult the documentation provided by 
the website www.seneca.it, in the section 

Prodotti/Serie Z-PC/MODBUS TUTORIAL

.

SERIAL INTERFACE

Digital output

29

30

I

R

V

ANALOG OUTPUT

The module provides a programmable, analog output in voltage (0..10 Vdc) or active and 
passive  current  (0..20  mA).  We  recommend  using  shielded  cables  for  the  electric 
connections.

Segnalazione tramite LED 

Segnalazione tramite LED 

Programming

The  communication  parameters  have  the  following  default  values::  baudrate=38400,  no 
parity, bit number=8, bit stop=1. These values can be modified by display or Modbus protocol.
To  program  the  device,  download  the  free  software  Easy  Setup  from  the  website 
www.seneca.it.

Summary of Contents for S Series

Page 1: ...iguration software please see www seneca it Contents General Specifications Technical Specifications Installation Rules Electrical connections Modbus connection rules DIP switches settings Digital inputs Leds Signallings Factory Settings Contents General specifications Technical features Functioning Rogowski s coil Electrical quantities Electrical connections LEDs signallings Serial interface Case...

Page 2: ...se chosen by specific display or MODBUS registry The module is also distinguished by Communication configurability through software RS485 serial communication with MODBUS RTU protocol maximum 32 nodes Easy wiring of power supply and serial bus by means of the bus housed in the DIN rail High precision 0 5 class Protection against ESD discharge up to 4 kV Measure input insulation 4000 Vac towards al...

Page 3: ...ntal conditions Voltage Consumption 11 40 VDC or 19 28 VAC 50 60 Hz Max 2 5 W Temperature Humidity 10 65 C 30 90 Voltage Output Analog Output 0 10 Vdc 0 5 Vdc Min load resistance 2 k Current Output 0 20 mA 4 20 mA Max load resistance 500 Transmission error Response time 0 1 max range 2 s 10 90 Isolations Insulation voltage 4000 Vac between the input and all the other circuits 1500 Vac between powe...

Page 4: ...A and the quantity to transmit is voltage Vrms in the 10 300 V range therefore MIN 10 MAX 300 then if Vrms measured is 10V analog output will be 4mA while if Vrms 300V output will be 20mA In the intermediate points the behaviour is linear The analog output values saturate at approximately 11 V for voltage output and at 22mA for current output analog output clamped at 110 If network frequency oscil...

Page 5: ...e conductor in a central position with reference to the ring For a correct measurement calibrate the Rogowski s coil write the calibration coefficient to the corresponding Modbus register refer to the user manual or set it using the menu on the display see display programming manual Example if the Rogowski s coil feature is 90 mV 1000 A set the tarature register corresponding to the phase where th...

Page 6: ...9 18 17 16 15 14 13 ZL x x VG A C B 22 21 20 19 18 17 16 15 14 13 N ZL x x x 3 WIRES Three Phase without Neutral VG A C B 22 21 20 19 18 17 16 15 14 13 N ZL x x x VG A C B 22 21 20 19 18 17 16 15 14 13 N ZL x x x There is no insulation between RS485 and the analog output 4 WIRES Three Phase with Neutral Note Connect the shield of the Rogowski s coil at negative so one of the terminals 14 16 18 22 ...

Page 7: ...o the energy counter Imax V R 50 mA Vmax 28V For more informations see the display settings manual For detailed information on RS485 serial interface consult the documentation provided by the website www seneca it in the section Prodotti Serie Z PC MODBUS TUTORIAL SERIAL INTERFACE Digital output 29 30 I R V ANALOG OUTPUT The module provides a programmable analog output in voltage 0 10 Vdc or activ...

Page 8: ...ill help prevent potential negative consequences to the environment and human health which could otherwise be caused by inappropriate disposal of this product The recycling of materials will help to conserve natural resources For more detailed information about the recycling of the product please contact your local city office waste disposal service of the retail store where you purchased this pro...

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