INA02

Analog Input Module (2 inputs)

Input module with 2 analog inputs
Supports all types of sensors with 0-10V or 4-20mA output signals

Technical info

With this input module featuring 2 analog inputs, you can connect various types of sensors with a 0-10V or 4-20mA output signal to the Qbus system.

Frequently Asked Questions

How do you read an existing configuration?
This is a completely different procedure depending on the type of controller.
For the CTD controllers this goes as follows:
In the SMIII via "File" or "Utilities / Setup / SD card", click on "Recover QDB from SD".
After confirmation you choose the name and location where the file should be saved. The zipped QDB file is then read from the SD card of the CTD and saved. With a positive answer to the question "Unzip and open restored QDB?", All data will then be immediately available. If the data you were still working on was not sent or saved, you will first receive a notification to do so.

For a CTL controller follow the following procedure:
Because this controller does not yet have a large memory, only limited data can be recovered. Ao the names are abbreviated to 12 characters and serial numbers are not stored anywhere.
The first step is therefore to type in ALL serial numbers via SMII via "File / Modules". These 6-digit serial numbers can be found on every module (DIN rail, switch, detector, etc.). For the SWC0x switches, an extra option was provided to have them send their serial number via “Search for modules”.
When you then click on the "down arrow", you can read all this limited information.
Always use the latest software for configuration.

It is always recommended to use the most recent version. This version supports the newest modules and resolves all known bugs.
If, for example, you enter a serial number and the correct module information does not appear, you are likely not working with the most recent software.
A newer version will always be able to open the older files (.QDB) without data loss.
The latest version of the System Manager software, along with the user manual and version history, can be found in the knowledge center.

Technical info for installers

Function Description

With this input module, which features 2 analog inputs, you can connect all kinds of sensors with a 0-10V or 4-20mA output signal to the Qbus system. In HVAC applications, for example, there are valves that measure humidity, CO2, and the like, delivering a 0-10V or 4-20mA signal. The feedback from valves or heating systems can also be read in this way. In horticulture, green wall systems, garden irrigation, liquid level measurement, and others, this input module is also applicable. The measured values can be translated into a 0-100% value (dimmer mode), thermostat mode (temperature sensors), or when fine-grained data is needed, the universal mode can be applied.
No sensors are included with this input module in the package. Please check the properties of the sensor you wish to connect beforehand.
The INA02 is an interface that connects the Qbus bus to various sensors and has a unique serial number that is entered during configuration in the configuration software SystemManager III. All programmed data is stored internally in permanent memory.
Technical specifications
General Specifications INA02
Input Voltage: Max. 20Vdc
Isolation voltage: tested at 2.5kV
Galvanic isolation between Qbus bus and inputs
Consumption: 0.28VA / 13.8V
Bus load: 25mA (peak) at nominal 13.8 V
Ambient Temperature:
Operating Temperature: 10°C to 50°C
Storage Temperature: -10°C to 60°C
Maximum Humidity: 93%, no condensation
Max. installation altitude: 2,000 meters above sea level
Inputs INA02:
2x input for 0-10V or 4-20mA
Impedance 1.2MOhm per input
Physical Specifications INA02:
Housing: Black self-extinguishing plastic according to UL94-V0
Protection class: IP20, EN 60529
Installation: mounting via 2 screws
Dimensions: +/- 57 x 45 x 19 (W × H × D, mm)
Dimensions: (h x w x l) +/- 19mm x 45mm x 57mm
Weight +/- 25g
Electrical Protection INA02:
Bus: 13.8Vdc – 18Vdc Extra Low Voltage (ELV / SELV)
Non-toxic, in compliance with WEEE/RoHS
In compliance with EMC and low voltage regulations. The module complies with HBES – EN50090-2-2 and EN60950-1:2006 +A11:2009 +A:2010 +A12:2011 +A2:2013
The product complies with the provisions of the EU directives (CE)
Sizing
Explanation of Symbols

Equipment where protection against the risk of electric contact is not only based on basic insulation but also on additional protection such as double insulation or reinforced insulation. There is no possibility for grounding.

Before connecting the device, it is mandatory to read the manual of the respective product. ISO7000-0434

Power supply connection (230V) to the power supply connector. IEC 60417-5036

CE conformity. All declarations of conformity are available upon request.
Warranty Provision

Standard Warranty Period: 2 years from delivery date.
The warranty is no longer valid if the module has been opened!
Defective modules should be sent without seal along with a description of the defect to our service department:
QBUS N.V.
Joseph Cardijnstraat 19
9420 Erpe-Mere
Belgium
T +32 53 60 72 10
F +32 53 60 72 19
Email: support@qbus.be

General

Safety Regulations
Read the entire manual before installing and activating the module.
CAUTION
The module must be installed, initialized, and maintained by a certified electrical installer in accordance with the applicable legal regulations of the country.
Do not connect a voltage higher than 20Vdc to the inputs of the INA02 to avoid damage!

Installation and cabling

Installation

Mount the device in a dry location. When used in humid environments or outdoors, it must be installed in a waterproof junction box. In any case, the module must be protected against condensation and water.
Power Supply

WARNING: DISCONNECT THE POWER SUPPLY TO THE MODULE BEFORE WORKING ON IT!
A double-pole circuit breaker with a maximum of 16A must be connected to the 230Vac module power supply. Conductor cross-section: minimum 1.5mm². Strip approximately 7mm of insulation from the conductor and screw the conductor into the L-N connector.
External sensor 0-10V or 4-20mA

Most 0-10V / 4-20mA sensors work perfectly with a very low safety voltage of 24Vdc. Almost all sensors are designed to operate with voltages ranging between approximately 9Vdc and 36Vdc. Choose a power supply based on the required power for the sensor to be used. This information can be found on the technical data sheet of the respective sensor. Typically, the LEDPWS/24.015 is sufficient for such sensors in combination with an INA02.
For sensors where you have the option to use either 4-20mA or 0-10V, it is best to opt for 4-20mA. All analog signals are susceptible to electrical interference, and a system with a 0-10V signal is certainly no exception. Devices such as motors, relays, and power supplies can induce voltages on signal lines and thus affect the 0-10V sensor signal. Additionally, a 0-10V signal is sensitive to voltage drop caused by wire resistance.
A signal of 4-20mA or 0-20mA, on the other hand, offers increased immunity against both electrical interference and signal loss over long cables. An extra advantage with a 4-20mA signal is the inherent fault condition detection. Since the 4-20mA signal, even at its lowest value, is still active when a sensor sends a minimum or "zero" position, the sensor still provides a signal of 4mA. If the value ever drops to 0mA, it may indicate that something is wrong. In the case of a 0-10V sensor, zero volts can mean a zero position, or it can mean that the sensor is no longer functioning.
0-10V system

The wiring between the INA02 and the connected sensors depends on the specifications described in the sensor's technical datasheet. It is strongly recommended to use grounded shielded cable in this case. If the distance between the sensors and the INA02 exceeds what is allowed, it is best to use a 4-20mA sensor. The INA02 is factory set to a 0-10V input signal. Connecting a 4-20mA sensor will not cause any damage or malfunction. When using 0-10V as a signal, no alarms can be generated at 0V when 0V can be a normal value. In this case, the INA02 cannot differentiate between a faulty sensor or a sensor giving 0V.
BUS-aansluiting

It is recommended to use the Qbus cable or any other cable with a minimum of 2 conductors of 1mm² as the bus cable. The green shielded EIB cable can also be used if the conductors are paired to achieve a minimum cross-section of 2 x 1mm².

Connection diagram

4-20mA

Most sensors can be powered with a standard 24Vdc power supply.
The voltage from the external dc power supply is connected to the +terminal of the sensor. The 0V is connected to input terminal C of the INA02. The 4-20mA output of the sensor is connected to the input of the INA02. In this way, the sensor and the INA02 are effectively connected in series to the external power supply. The maximum input voltage for the 4-20mA must be lower than 20Vdc!

Combination 4-20mA & 0-10V
0-10V

Connect an external power supply to the 0-10V sensor. Most sensors can be powered with a standard 24VDC power supply.
The voltage from the external DC power supply is connected to the +terminal of the sensor. The 0V is connected both to the -terminal of the sensor and to input terminal C of the INA02. The 0-10V output of the sensor is connected to the input of the INA02. The maximum input voltage on the 0-10V input must be lower than 20VDC to avoid damage!

Combination 4-20mA & 0-10V

Each modules has an unique serial number. By this number the System Manager recognizes the modules.

This is completely explained in our knowledge center.

The INA02 is a module that can measure a voltage between 0 and 10V or a current between 0 and 20mA in a range of 12 bits via 2 inputs.

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An input can be of 3 types: Dimmer (0-100%), Thermostat I/O (with a range of 63.5°C) or a universal I/O (number of 24-bit with adjustable resolution)
The latter can therefore display large values as well as decimals. However, the measurement of the module is limited to 12-bit and will therefore be able to display the complete measurement in +/- maximum 4000 steps.
After selecting (or adding) the universal I/O, it is important to set the parameters correctly. Choose the correct type to get a correct display. The default parameters will then be suggested. You can then adjust this to your own liking.
Then choose the mode of the sensor:

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Then click on “Default” to set the default conversion.
You can configure the settings of the first four types as follows:
Especially with a universal I/O, it may be necessary to adjust these default values. Enter the correct value at minimum (at 0V, 0mA or 4mA) and also the desired value that the sensor should give at maximum (at 5V, 10V or 20mA)
e.g. You want to visualize a temperature between 40°C and 100°C and according to the technical documentation the sensor gives 0°C at 4mA and 100°C at 15mA. Then you will need to use the following settings:

The value 133.3°C is obtained by the following formula: 100 °C / 15 mA * 20 mA

The result of the measurement is sent to the selected I/O in the controller when the “hysteresis” is reached and the “dead time” has elapsed. In this example there will only be a status update if the temperature difference compared to a previous measurement is greater than or equal to 1°C and this at the earliest 5 seconds after a previous update.

If a pressure sensor from Qbus (SENPACK/LEVEL) is connected, you can easily measure the contents of a tank.
For example, the I/O settings look like this:

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At “Properties” you can set all parameters of your tank. The choice of tank type, maximum volume, height and type of liquid will provide a correct representation of the measured contents of the tank when the sensor is just above the bottom. The pressure sensor (SENPACK/LEVEL) can handle a maximum pressure of 0.3bar (20mA at 3m maximum depth in a tank filled with water)
For other liquids with a specific weight of less than 1000kg/m³, the volume of slightly deeper vessels can therefore be measured.
The liquids offered are water, diesel (fuel oil) and petrol.

If you want to measure another kind of tank/liquid or if the height of the vertical tank is e.g. 4 m and the sensor is 1m from the bottom, you can choose “Other (linear)” and set the value from 0 bar and from 0.3bar

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The bistable error address will be turned on if, for example, there is a sensor break. At 0-5V the I/O will be switched on if a voltage is measured of more than 5.25V, at 0-10V more than 10.5V, at 0-20mA or 4-20mA more than 21mA and at 4-20mA also if less than 3.5mA
If you wish to test other threshold values, you can use analog logic or, better yet, set a trigger on the module itself.
E.g.:

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Double click on the threshold value changes the test from >= to <= and to 'do not test'.
When a threshold value is set on both inputs, the result will be calculated as an “AND” condition.