SENECA Z-4RTD2-SI Analog Input or Output Module Instruction Manual
- June 4, 2024
- SENECA
Table of Contents
INSTALLATION MANUAL
Z-4RTD2-SI
PRELIMINARY WARNINGS
The word WARNING preceded by the symbol indicates conditions or actions that put the user’s safety at risk. The word ATTENTION preceded by the symbol indicates conditions or actions that might damage the instrument or the connected equipment. The warranty shall become null and void in the event of improper use or tampering with the module or devices supplied by the manufacturer as necessary for its correct operation, and if the instructions contained in this manual are not followed.
| WARNING: The full content of this manual must be read before any operation.
The module must only be used by qualified electricians. Specific documentation
is available via QR-CODE shown on page 1.
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| 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.
| Electrical and electronic waste disposal (applicable in the European Union
and other countries with recycling). The symbol on the product or its
packaging shows the product must be surrendered to a collection center
authorized to recycle electrical and electronic waste.
https://www.seneca.it/products/z-4rtd2-si
DOCUMENTATION Z-4RTD2-SI
SENECA s.r.l.; Via Austria, 26 – 35127 – PADOVA – ITALY; Tel. +39.049.8705359 – Fax +39.049.8706287
CONTACT INFORMATION
Technical support| support@seneca.it| Product
information| sales@seneca.it
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This document is the property of SENECA srl. Copies and reproduction are
prohibited unless authorized.
The content of this document corresponds to the described products and
technologies.
Stated data may be modified or supplemented for technical and/or sales
purposes.
MODULE LAYOUT
Dimensions: 17.5 x 102.5 x 111 mm
Weight: 100 g
Container: PA6, black
SIGNALS VIA LED ON FRONT PANEL
| LED | STATUS | LED meaning |
|---|---|---|
| PWR | ON | The device is powered correctly |
| FAIL | ON | Instrument in error state |
| RX | Flashing | Data receipt on port #1 RS485 |
| TX | Flashing | Data transmission on port #1 RS485 |
TECHNICAL SPECIFICATIONS
CERTIFICATIONS|
https://www.seneca.it/products/z-4rtd2-si/doc/CE_declaration
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POWER SUPPLY| 10 ÷ 40Vdc; 19 ÷ 28Vac; 50-60Hz; Max 0.8W
ENVIRONMENTAL CONDITIONS| Operating temperature: -25°C ÷ +70°C
Humidity: 30% ÷ 90% non condensing
Storage temperature: -30°C ÷ +85°C
Altitude: Up to 2000 m above sea level
Protection rating: IP20
ASSEMBLY| 35mm DIN rail IEC EN60715
CONNECTIONS| Removable 3.5 mm pitch terminal block, 1.5 mm2 max cable section
COMMUNICATION PORTS| 4-way removable screw terminal block; max. section
1.5mmTION 2 ; step: 3.5 mm IDC10 rear connector for IEC EN 60715 DIN bar,
Modbus-RTU, 200÷115200 Baud Micro USB on the front, Modbus protocol, 2400
Baud
INSULATION|
ADC| Resolution: 24 bit
Calibration precision 0.04% of full scale
Class / Prec. Base: 0.05
Temperature drift: < 50 ppm/K
Linearity: 0,025% of full scale
N.B.: A delayed fuse with a maximum rating of 2.5 A must be installed in series with the power supply connection, near the module.
SETTING THE DIP-SWITCHES
The position of the DIP-switches defines the Modbus communication parameters
of the module: Address and Baud Rate
The following table shows the values of the Baud Rate and the Address
according to the setting of the DIP switches:
DIP-Switch status
SW1 POSITION| BAUD| SW1 POSITION| ADDRESS| POSITION| TERMINATOR
1 2 3 4 5 6 7 8| 3 4 5 6 7 8| 10
– – – – – – – –| 9600| | #1| | Disabled
– – – – – – – –| 19200| | #2| | Enabled
– – – – – – – –| 38400| • • • • • • • • •| #…| |
– – – – – – – –| 57600| | #63|
| From EEPROM| | From EEPROM| |
Note: When DIP – switches 1 to 8 are OFF, the communication settings are
taken from programming (EEPROM).
Note 2: The RS485 line must be terminated only at the ends of the
communication line.
FACTORY SETTINGS
1| 2| 3| 4| 5| 6| 7| 8
| | | | | | |
LEGEND
| ON
| OFF
The position of the dip-switches defines the communication parameters of the
module.
The default configuration is as follows: Address 1, 38400, no parity, 1 stop
bit.
| CH1| CH2| CH3| CH4
---|---|---|---|---
Sensor Type| PT100| PT100| PT100| PT100
Type of data returned, measured in:| °C| °C| °C| °C
Connection| 2/4 WIRES| 2/4 WIRES| 2/4 WIRES| 2/4 WIRES
Acquisition rate| 100ms| 100ms| 100ms| 100ms
LED signal of channel failure| YES| YES| YES| YES
The value loaded in case of fault| 850 °C| 850 °C| 850 °C| 850 °C
FIRMWARE UPDATE
Firmware update procedure:
- Disconnect the device from the power supply;
- Holding down the firmware update button (positioned as shown in the figure on the side), reconnect the device to the power supply;
- Now the instrument is in update mode, connect the USB cable to the PC;
- The device will be displayed as an “RP1-RP2” external unit;
- Copy the new firmware into the “RP1-RP2” unit;
- Once the firmware file has been copied, the device will automatically reboot.
INSTALLATION REGULATIONS
The module has been designed for vertical installation on a DIN 46277 rail.
For optimal operation and long life, adequate ventilation must be provided.
Avoid positioning ducting or other objects that obstruct the ventilation
slots. Avoid mounting modules over heat-generating equipment. Installation in
the bottom part of the electrical panel is recommended.
ATTENTION These are open-type devices and intended for installation in an
end enclosure/panel offering mechanical protection and protection against
spread of fire.
ELECTRICAL CONNECTIONS
CAUTION
To meet the electromagnetic immunity requirements:
– use shielded signal cables;
– connect the shield to a preferential instrumentation earth system;
– separate shielded cables from other cables used for power installations
(transformers, inverters, motors, etc…).
ATTENTION
Use only copper or copper-clad aluminum or AL-CU or CU-AL conductors
Power supply and Modbus interface are available using the Seneca DIN rail bus,
via the IDC10 rear connector, or the Z-PC-DINAL2-17.5 accessory.
Rear Connector (IDC 10)
The illustration shows the meanings of the various IDC10 connector pins if
signals are to be sent via them directly.
INPUTS:
the module accepts temperature probes with 2, 3, and 4 wire connections.
For the electrical connections: screened cables are recommended.
2 WIRES| This connection can be used for short distances (< 10 m) between
module and probe.
This connection introduces a measurement error equal to the resistance of the
connection cables.
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3 WIRES| A connection to be used for medium distances (> 10 m) between module
and probe.
The instrument performs the compensation on the average value of the
resistance of the connection cables.
To ensure correct compensation, the cables must have the same resistance.
4 WIRES| A connection to be used for long distances (> 10 m) between module
and probe. It offers maximum precision, in view of the fact that the
instrument reads the resistance of the sensor independently of the resistance
of the cables.
INPUT PT100EN 607511A2 (ITS-90)| INPUT PT500 EN 607511A2 (ITS-90)
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MEASURING RANGE| I -200 = +650°C| MEASURING RANGE| I -200 + +750°C
INPUT PT1000 EN 60751/A2 (ITS-90)| INPUT NI100 DIN 43760
MEASURING RANGE| -200 + +210°C| MEASURING RANGE| -60 + +250°C
INPUT CU50 GOST 6651-2009| INPUT CU100 GOST 6651-2009
MEASURING RANGE| I -180 + +200°C| MEASURING RANGE| I -180 + +200°C
INPUT Ni120 DIN 43760| INPUT NI1000 DIN 43760
MEASURING RANGE| I -60 + +250°C| MEASURING RANGE| I -60 + +250°C
MI00581-0-EN
INSTALLATION MANUAL
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