SENECA Z-SG3 Analog I O Modules
Contents
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 could damage the instrument or 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.
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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 using the QR-CODE shown below. |
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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. |
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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. |
- Z-SG3
DOCUMENTATION
- ZE-SG3
DOCUMENTATION
MODULE LAYOUT
Dimensions LxHxD: 17.5 x 102.5 x 111 mm; Weight: 110 g; Enclosure: PA6, black
SIGNALS VIA LED ON FRONT PANEL |
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| LED | STATUS | LED meaning | |||
| PWR / FAIL | ON | The device is powered correctly | |||
| Flashing | Load cell overload | ||||
| RX (ZE-SG3) |
Flashing | Reception of packet completed on RS485 | |||
| ON | Anomaly / Check connection on RS485 | ||||
| TX (ZE-SG3) |
Flashing | Transmission of packet completed on RS485 | |||
| RX (Z-SG3) |
Flashing | Reception of packet completed on RS485 / USB | |||
| ON | Anomaly / Check connection on RS485 | ||||
| TX (Z-SG3) |
Flashing | Transmission of packet completed on RS485 | |||
| ETH TRF (ONLY ZE-SG3) | Flashing | Packet transmission on Ethernet port | |||
| ETH LNK (ONLY ZE-SG3) | ON | Ethernet connection present | |||
TECHNICAL SPECIFICATIONS |
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| CERTIFICATIONS |  |
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| INSULATION |  |
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WARNING the maximum working voltage between any terminal and ground must be less than 50 Vac / 75Vdc |
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| POWER SUPPLY | Voltage: 10 ÷ 40Vdc; 19 ÷ 28Vac 50 ÷ 60Hz; Absorption: Max: 2 W | ||||
| ENVIRONMENTAL CONDITIONS | Temperature: -25 ÷ +70°C; Humidity: 30% ÷ 90% non-condensing; Storage temperature: -30 ÷ +85°; Degree of protection: IP20. | ||||
| ASSEMBLY | IEC EN60715, 35mm DIN rail in vertical position. | ||||
| CONNECTIONS | Removable 3-way screw terminals, 5 mm pitch; Rear connector IDC10 for DIN 46277 bar | ||||
| COMMUNICATION | Serial communication ports RS485 (on terminal and IDC10), 2400 – 115200 Baud front micro USB (only Z-SG3), Ethernet port 10/100 Mbit/s (only ZE-SG3). | ||||
| ANALOGUE INPUT CHARACTERISTICS | Input impedance: > 1MΩ; Full scale: ± 30mV ÷ ± 460mV Error: 0.01% of the electrical full scale in “factory calibration” mode * Thermal stability: 0.0010%/C° of full scale. Cell supply voltage: 5 Vdc (supplied by the device) Resolution: ADC 24bit Response time with activated filter: 2 ÷ 850ms configurable |
| LOAD CELL CHARACTERISTICS | 4 or 6 wires; Cell minimum impedance: 87 Ω equivalent (possibly deriving from several load cells in parallel) Cell sensitivity: From ±1 mV/V to ±64 mV/V; |
| ANALOGUE OUTPUT | Voltage output: Configurable between 0 ÷ 10Vdc, minimum load resistance 2kΩ Current output: Configurable between 0 ÷ 20mA, maximum load resistance: 500 Ω Retransmission error: 0.1 % of maximum field; Response time (10%…90%): 5 ms |
| DIGITAL IN/OUT | Opto-insulated digital input: Min. voltage: 12 V / Max. voltage: 30 V Opto-insulated digital output: Max. current: 50 mA / Max. voltage: 30 V |
* In the case of “calibration with sample weight” mode, the accuracy is given by the linearity error (0.003% of the electric full scale)
SETTING THE SW1 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:
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DIP-Switch status |
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| SW1 POSITION | BAUD RATE | SW1 POSITION | ADDRESS |
| 1 2 3 4 5 6 7 8 | 1 2 3 4 5 6 7 8 | ||
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9600 |  |
#1 |
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19200 |  |
#2 |
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38400 |  |
#… |
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57600 |  |
#63 |
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From EEPROM |  |
From EEPROM |
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KEY |
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| 1 | ON |  |
| 0 | OFF |  |
Note: When DIP switches 3 to 8 are OFF, the communication settings are taken from programming (EEPROM).
DEFAULT: 384000, 8 N1
SW2 DIP-SWITCH SETTINGS
WARNING
The DIP-switch settings are read only at boot time. At each change, perform a restart.
For use and settings via DIP-SWITCH, see the user manual available on the website on the web page dedicated to the product.
PS BUTTON1
The tare is reset using the PS1 button. To reset the tare it is necessary to hold down the PS1 button for three seconds.
The update of the value will be viewable via the Webserver page and/or Modbus.
IDC10 CONNECTOR
The illustration shows the meanings of the various IDC10 connector pins if signals are to be sent via them directly.
WEB SERVER (ONLY ZE-SG3)
To access the maintenance Web Server, use the following credentials:
Default user: admin; Default password: admin
CAUTION
DO NOT USE DEVICES WITH THE SAME IP ADDRESS IN THE SAME ETHERNET NETWORK.
FACTORY IP ADDRESS (ONLY ZE-SG3)
The default module IP address is static: 192. 168. 90. 101
USB PORT (ONLY Z-SG3)
The module is designed to exchange data according to the modes defined by the MODBUS protocol. It has a micro USB connector and can be configured using applications and/or software programs. The USB serial port uses the following communication parameters: 38400 BAUD, 8BIT, NO PARITY, 1 STOP BIT, ModBUS ADDRESS 1.
The USB communication port responds exactly like the RS485 port with the exception of the communication parameters. While using the USB port, the RS485 port is disabled.
ELECTRICAL CONNECTIONS
CAUTION
The upper power supply limits must not be exceeded, as this could cause serious damage to the module.
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 (inverters, motors, induction ovens, etc…).
- Power Supply
- RS485
- Analogue output (V)
- Analogue output (mA)
- Digital Input 1
- Digital Input 2
- Digital output 1
- Digital output 2
- Load cell
Connection to the load cell via 4 or 6 wires:
The terminals have the following meaning:
13: Load cell positive supply
11: Load cell positive supply reading
9: Cell reading positive
12: Load cell negative supply reading
14: Load cell negative supply
10: Cell reading negative
For the connections, the use of screened cables is required. - 6 wires
- 4 wires
CUSTOMER SUPPORT
CONTACT INFORMATION
SENECA s.r.l.; Via Austria, 26 – 35127 – PADOVA – ITALY; Tel. +39.049.8705359 – Fax +39.049.8706287
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 modified or supplemented for technical and/or sales purposes.
