Seneca Z-8TC-SI User manual

MI00597-0-EN INSTALLATION MANUAL 1/4
INSTALLATION MANUAL
SENECA s.r.l.; Via Austria, 26 – 35127 – PADOVA – ITALY; Tel. [phone] - Fax [phone]
WARNING: The full content of this manual must be read before any operation. The module must only be used by
qualied electricians. Specic documentation is available via QR-CODE shown on page 1.
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 centre
authorized to recycle electrical and electronic waste.
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.
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.
CONTACT INFORMATION
Technical support [email protected] Product information [email protected]
This document is the property of SENECA srl. Copies and reproduction are prohibited unless authorised.
The content of this document corresponds to the described products and technologies.
Stated data may be modied or supplemented for technical and/or sales purposes.
Z-8TC-SI
Z-8TC-SI-LAB
DOCUMENTATION
Z-8TC-SI
DOCUMENTATION
Z-8TC-SI-LAB

MI00597-0-EN INSTALLATION MANUAL 2/4
CERTIFICATIONS
https://www.seneca.it/products/z8tc-si/doc/CE_declaration
https://www.seneca.it/products/z8tc-si-lab/doc/CE_declaration
POWER SUPPLY Voltage: 10 ÷ 40Vdc; 19 ÷ 28Vac; 50-60 Hz; absorption: 0.6W max
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 4-way removable terminal block, 3.5mm pitch, 1.5 mm2 cable section max
COMMUNICATION
PORTS
IDC10 rear connector for IEC EN 60715 DIN bar, ModBUS-RTU, 1200÷115200 Baud
Micro USB on the front, ModBUS protocol, 2400 Baud
INSULATION
COMMUNICATION
PORTS RS485 on IDC10 connector
PROTOCOL ModBUS- RTU
TC INPUTS
No. of channels: 8; Type of thermocouples: J, K, E, N, S, R, B, T, L (individually activated and congurable in pairs)
MODULE LAYOUT
SIGNALS VIA LED ON FRONT PANEL
17.5 mm
Dimensions: 17.5 x 102.5 x 111 mm
Weight: 100 g
Container: PA6, black
111 mm
102.5 mm
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
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.
Power
Supply
TC4
TC5 TC6 TC7 TC8
TC3
TC2
TC1
Comm.
1500 Vac
40 Vac
RS485
Z-8TC-SI Z-8TC-SI-LAB

MI00597-0-EN INSTALLATION MANUAL 3/4
SETTING THE DIP-SWITCHES
The position of the DIP-switches denes the Modbus communication parameters of the module: Address and Baud Rate The fol-
lowing table shows the values of the Baud Rate and the Address according to the setting of the
DIP-switches:
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.
DIP-Switch status
SW1 POSITION BAUD
RATE
SW1 POSITION
ADDRESS
POSITION FUNCTION
1 2 3 4 5 6 7 8 3 4 5 6 7 8 9 BOOTLOADER
9600 #1 Enabled
19200 #2 Disabled
38400 #... 10 TERMINATOR
57600 #63 Enabled
From
EEPROM
From
EEPROM
Disabled
The position of the dip-switches denes the communication parameters of the module.
The default conguration is as follows: Address 1, 38400, no parity, 1 stop bit.
FACTORY SETTINGS
12345678
KEY
ON
OFF
SPAN mV ±150mV.
IMPEDANCE
> 4 MΩ.
ADC 24 bit.
TEMPERATURE DRIFT < 100ppm/K.
COLD JUNCTION ERROR
<1°C.
TEST CURRENT <100nA.
CMRR 70dB @ 100ms
DMRR 60 dB.
SUPPORTED INPUT SPECIFICATIONS
SENSOR ACCURACY (AT 23°C) SOLUTION MEASURING RANGE STANDARD
J± (0.03% + 0.2°C) (**) 0.5µV (~0.01°C @ 0°C) -210 ÷ +1200°C EN 60584-1:1997
K± (0.03% + 0.2°C) (**) 0.5µV (~0.02°C @ 0°C) -200 ÷ +1372°C EN 60584-1:1997
R± (0.03% + 0.3°C) (**) 0.5µV (~0.1°C @ 0°C) -50 ÷ +1768°C EN 60584-1:1997
S± (0.03% + 0.3°C) (**) 0.5µV (~0.1°C @ 0°C) -50 ÷ +1768°C EN 60584-1:1997
T± (0.03% + 0.1°C) (**) 0.5µV (~0.01°C @ 0°C) -200 ÷ +400°C EN 60584-1:1997
B± (0.03% + 0.3°C) (**) 0.5µV (~0.2°C @ 0°C) +250 ÷ +1820°C (*) EN 60584-1:1997
E± (0.03% + 0.2°C) (**) 0.5µV (~0.01°C @ 0°C) -200 ÷ +1000°C EN 60584-1:1997
N± (0.03% + 0.2°C) (**) 0.5µV (~0.02°C @ 0°C) -200 ÷ +1300°C EN 60584-1:1997
L± (0.03% + 0.15°C) (**) 0.5µV (~0.01°C @ 0°C) -200 ÷ +800°C Gost 8.585-2001
mV 0.03% + 15µV 0.5µV ± 150 mV
(*) Up to 250°C a zero temperature value is assumed.
(**) Acquisition speed 100ms, no cold junction compensation.
CAUTION
Even at constant room temperature, the declared accuracies are achieved after at least 30 minutes from switching on the device.

MI00597-0-EN INSTALLATION MANUAL 4/4
ELECTRICAL CONNECTIONS
Z-8TC-SI Z-8TC-SI-LAB
Power supply and Modbus interface are available using the Seneca DIN rail bus, via the IDC10 rear connector, or the Z-PC-DI-
NAL-17.5 accessory.
RS485GND
RS485A
RS485B
Power Supply AC / +
Power Supply AC / -
IDC 10
1
Back connector (IDC 10)
The illustration shows the meanings of the various IDC10 connector
pins if signals are to be sent via them directly.
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.).
INSTALLATION REGULATIONS
MODBUS CONNECTION RULES
The module has been designed for vertical installation on a DIN 46277 rail. For optimal operation and long life, adequate ventila-
tion 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.
These are open type devices intended for installation in a nal casing/panel that offers mechanical protection and protection
against the spread of re.
1) Install the modules in the DIN rail (120 max)
2) Connect the remote modules using cables of an appropriate length. The following table shows cable length data:
-Bus length: maximum length of the Modbus network according to the Baud Rate. This is the length of the cables that connect
the two farthest modules (see Diagram 1).
-Derivation length: maximum length of a derivation 2 m (see Diagram 1).
Lunghezza
bus
Lunghezza
derivazione
1200 m 2 m
Schema 1
Modulo 2Modulo 1
Modulo 3
Modulo 4
Modulo 5
Lunghezza del Bus
Ld= Lunghezza derivazione
Ld
For maximum performance, it is recommended to use special shielded cables manufactured specically for RS485 communication.
Bus length Derivation
length Module 1 Module 2 Module 5
Module 4
Module 3
Diagram 1
Bus length
Ld= Derivation length
CAUTION
CAUTION