Hardware Installation Guide

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The OpenMotics Modules

General

Welcome to the Hardware Installation guide which will explain how to install and interconnect the OpenMotics modules This document describes the steps to install the OpenMotics hardware. All OpenMotics Modules are DIN rail mountable to ensure easy installation and wiring.

If you have some questions regarding which type of dimmer, heating valve/actuator or switch to use, please see the Additional Material page.

If you want to know if your heating system is compatible with OpenMotics, see the Heating Compatibility page.

The following space requirements apply for the fuse box dimensions (1 module width is approx 17.5mm):

  • Input, Dim Control, Temperature, CAN Control and power supply modules: 3 module widths
  • Gateway, Output and Energy modules: 6 module widths

Always reserve some additional space in the fuse box for future extensions.

Important remark: Your OpenMotics installation needs a 12VDC power supply. Please always use a separate dedicated power supply for your OpenMotics system with at least the following specifications:

  • 12VDC
  • 2 Amp (can be higher depending on the Number of modules being used)
  • CE approved

We advise to use the OpenMotics power supply to ensure CE compliance

Instructional videos

There are some instructional videos available on the OpenMotics YouTube page at youtube.com/OpenMotics

Wiring the bus

Wiring the bus and connecting the 12-24VDC power supply is simple and straight forward. The below example shows how a Starter Pack is connected. Please note that a different 12VDC power supply may be delivered but the principle remains the same.

Bus2.jpg

Connecting the Bus ...

In the example on the right only a Gateway and Input Module are used. This setup can be expanded with many more modules in any configuration.

Principles and cabling

  • The Gateway has 2 BUS connections:
    • BUS1: Connects all the OpenMotics Modules except the Energy modules (green wires on schematic 'Home Automation Data')
    • BUS2: Connects only the OpenMotics Energy modules (blue wires on schematic 'Power Measurement Data')
  • The A and B wire of each bus must be twisted and twisted pair must be used, especially when longer distances between the modules are required
  • The first and last module on both BUS1 and BUS2 must have a termination jumper set on the respective 'TR' pins; the other modules must have the termination jumper removed

Wiring

  1. Ask a certified electrician to make the mains connection (110-230VAC) to the 12VDC power supply. Make sure it is installed on a separate circuit breaker so maintenance can be easily performed.
  2. Make sure the power supply is switched off and all local safety precautions for working in the fuse box are met!
  3. Connect the '+12V' and the '-12V' of the power supply to the '+12V IN' and '-12V IN' connection on the Gateway module
  4. Connect the '-12V OUT' of the Gateway module to the '-12V IN' connections on all other modules (black wire on schematic)
    • When using multiple power supplies (e.g. multiple fuse boxes) always link the '-' connections (but not the '+' connections) of all power supplies in the installation!
    • Please use a wire with sufficient diameter (depending on the number of modules) that can support the peak currents (when switching relays for example)
  5. Connect the '+12V OUT' of the Gateway module to the '+12V IN' connections on all other modules (red wire on schematic)
  6. All modules except the Energy modules (if applicable):
    1. Connect the 'A' and 'B' wires of BUS1 on the Gateway module to the respective 'A' and 'B' BUS connections of all the modules on the bus (excluding the Energy modules): from the 1st to the 2nd module, 2nd to the 3rd, etc. Use only twisted pair!
    2. The first and last module on BUS1 need to be terminated. Place the jumper supplied with your Gateway module on the 'TR' jumper pins of the last module on BUS1. Typically the Gateway module is the first module on BUS1; if this is not the case: remove the 'TR1' jumper (factory set) from the Gateway module and move it to the 'TR' connection of the first module on BUS1. Ensure that no 'TR' jumpers are placed on any modules in between.
  7. Only the Energy modules (if applicable):
    1. Connect the 'A' and 'B' wires of BUS2 on the Gateway module to the respective 'A' and 'B' BUS connections of all the Energy modules on the bus: from the 1st to the 2nd module, 2nd to the 3rd, etc. Use only twisted pair!
    2. The first and last Energy module on BUS2 need to be terminated. Place the jumper supplied with your Gateway module on the 'TR' jumper pins of the last module on BUS2. Typically the Gateway module is the first module on BUS2; if this is not the case: remove the 'TR2' jumper (factory set) from the Gateway module and move it to the 'TR' connection of the first Energy module on BUS2. Ensure that no 'TR' jumpers are placed on any modules in between.
  8. Connect a standard Ethernet cable with RJ45 plugs (not supplied) to the Ethernet connector on the Gateway module and to your home network (note that DHCP must be enabled).
  9. Power on the 12VDC power supply and check the status of all installed modules to check if all front panel Power LEDs light up. If this is not the case: immediately switch off the power supply and look for possible causes.
    • Ensure that both the ‘Cloud’ and ‘VPN’ LEDs on the Gateway module front panel light up after a couple of minutes. This indicates a working internet connection to the OpenMotics Cloud.
  10. Power off the 12VDC power supply and connect all the inputs, outputs, sensors, etc. to your OpenMotics modules (see following chapters).
  11. After everything is installed, the system is powered on and the Gateway module is connected to the Internet the system can be set up using the OpenMotics Cloud (see following chapters)
    • Note that other configuration options (including offline installation) are also available.

In the example below a Gateway module, a Power module (since replaced by the Energy module) and an Input module are used. Of course, more modules can be connected on both BUS1 and BUS2, just make sure the jumper for each bus is set on the first and last module.


Bus+power.jpg


Module connections

Gateway module

The Gateway module is the heart of every OpenMotics system. The installation instructions are described in the wiring the bus chapter. Please read this chapter thoroughly and completely prior to starting installation.

Front panel LED behavior is described here

Input module

The Input module is used to connect switches, push buttons or any other kind of input device (e.g. motion detectors, window/door contacts, pulse outputs for electricity/water/gas etc.) in a STAR topology. An Input module will detect any input as being triggered when the ground (labeled as '-' or 'GND') is applied to it. NO (Normally Open) as well as NC (Normally Closed) types of switches can be connected.

Typically, every switch in your building goes from the switch to the Input modules by using for example SVV, UTP or any other solid copper core cabling. The Input module uses STAR topology cabling. If BUS topology is preferred the CAN Control and micro CAN modules can be used instead.

Install the Input module(s) in your fuse box as described in the wiring the bus chapter and connect inputs following the schematic below:

Front panel LED behavior is described here

Input.jpg

Notes:

  • Please not that every input has a pull up resistor to +5VDC. It’s important not to apply any voltages to the Input module except the '-' or 'GND' connection (when switched). In case of doubt (when using a motion detector for example), measure the output to make sure no voltages are applied so only devices with dry outputs should be used (for advanced users, open collector outputs can be used as well when properly designed). See PIR Motion Detector for more explanation.
  • The '-' or 'GND' connection on the Input module is used as the common wire (and is connected to ground), the second wire must be connected to one of the inputs ('INPUT 1-8'), see schematic.
  • Only connect 1 conductor per input connector! If multiple conductors need to be connected to the same input connector: use a wire connector
  • Switches of any brand that are “bounced potential free” can be used. The used push buttons should not contain any electronics (except perhaps LEDs)
  • The cables that connect the switches with the Input module can be any low voltage cable (alarm cable, UTP etc.) but solid copper is highly encouraged.
  • The connectors labeled 'NC' should not be used
  • Once an Input module has been added through the Cloud (or via maintenance mode), the orange status LED will flicker every few seconds to indicate that communication is working. This is normal behavior.
  • If you've some questions regarding which type of dimmer, heating valve/actuator or switch to use, please see the Additional Material page.
  • THE INPUT MODULE DOES NOT SUPPORT 230VAC! CONNECTING 230VAC TO THE INPUT MODULE MAY DESTROY YOUR INPUT MODULE AND IN SOME OCCASIONS YOUR COMPLETE INSTALLATION. ONLY APPLY THE OPENMOTICS GND (FROM THE 12VDC POWER SUPPLY) TO THE INPUT CONNECTIONS OF THE OPENMOTICS INPUT MODULE.


Connecting a motion sensor (or similar)

Different types of motion sensors can be connected to the OpenMotics system.

See PIR Motion Detector for more explanation.

Motion Sensor.JPG


CAN Control & micro CAN module

The OpenMotics system also supports switches that are connected in a BUS topology (as opposed to the Input module which uses STAR topology). For this, our CAN Control (fuse box) and micro CAN modules (throughout the building) are used. The CAN Control module will do the conversion between RS485 and CAN. On the micro CAN module, switches and their feedback LEDs but also temperature and humidity sensors can be connected.

The CAN bus between the CAN Control and micro CAN module(s) must be terminated on the first and last module on the CAN bus. Place the jumper supplied with your CAN Control module on the 'TR' jumper pins of the last module on the CAN bus. Typically the CAN Control module is the first module on the CAN bus; if this is not the case: remove the 'TR2' jumper (factory set) from the CAN Control module and move it to the 'TR' connection of the first micro CAN module on the CAN bus. Ensure that no 'TR' jumpers are placed on any modules in between.

Cable to use between CAN Control and the micro CANs: EIB (2x twisted pair, full copper, shielded, 0.8mm)

Install the CAN Control module(s) in your fuse box as described in the wiring the bus chapter. Then install the micro CAN modules following the schematic below.

For more info on wiring color codes and sensor connections, see the micro CAN Connections page.


CAN Micro2.jpg

Important Remark

When adding or removing sensors, always disconnect the power before doing the wiring. A power reset is also needed when the hardware configuration of the sensors has changed. Please also note that a sensor of a micro CAN will only be added in the CAN Control when a button on the corresponding micro CAN is pressed. After this action, do an initialization of the CAN Control module to check if no new virtual modules have been added.

Front panel LED behavior is described here (CAN Control) and here (micro CAN)

Connecting DALI equipment

Install the DALI modules as described in the DALI Installation Guide.


Output module

The Output module comes equipped with 8 bi-stable 16A NO (Normally Open) relays to control 8 electrical circuits or 4 roller shutters (4x up+down). Bi-stable relays are used to drastically lower the power consumption of the module. A standard relay consumes between 1W and 2W when it's activated while a bi-stable relay consumes no power (except during the milliseconds it is switching states). The relays are used to switch the AC mains (110-230VAC) as well as low voltage DC loads.

Important Remarks:

  • Use circuit breakers of max. 16A
  • Relay banks
    • The Output module features 2 'banks' of 4 relays, each with its own common connection
      • Bank 1: Relays labeled 'OUTPUT 1' + '2' + '3' + '4' with common connection labeled 'COMMON 1-2-3-4'
      • Bank 2: Relays labeled 'OUTPUT 5' + '6' + '7' + '8' with common connection labeled 'COMMON 5-6-7-8'
    • Bank 1 and 2 each have their own common connection for their 4 relays. In other words, there is no galvanic separation for the 4 relays within a bank but there is full galvanic separation between the 2 banks.
    • For example, when relay 1 is used to switch 230VAC, relay 2, 3 and 4 can only be used to switch the same mains as well because they share the same common wire.
  • Operating modes
    • The Output module can operate in 'normal' (default) or 'shutter' mode.
      • In normal mode the 8 relays can be used to control 8 electrical circuits (module ID 'O')
      • In shutter mode the 8 relays can be used to control 4 shutters: 4x up+down (module ID 'R')
      • To switch mode: press the button labeled 'BTN' (not the front panel button) for 5 consecutive seconds until all 8 (normal mode) or only 1, 3, 5, 7 (shutter mode) front panel LEDs start blinking. Set the correct mode prior to connecting any loads and prior to Initializing the module.
  • The orange status LED will only blink when communication is happening between the module and the Gateway module. In normal circumstances, the status LED will not flicker except when a relay changes state.

In case of any doubts, please ask the help of a certified electrician to assist you in the design and the connectivity!

Install the Output module in your fuse box as described in the wiring the bus chapter and connect outputs following the schematics below.

Front panel LED behavior is described here

Switching AC loads

Set the Output module in normal mode prior to connecting loads! (normal mode is the default setting)

The design of the circuit breakers depends on the electrical installation, the load and the local regulations. Many of our customers use the below design where the 32A circuit breaker can also be a 40 of 64A circuit breaker which is used for all 16A circuit breakers. You can also use 1 circuit breaker per Output module when the total load of the 8 outputs is less than 16A. Also note that the 32A circuit breaker in the below design is used for multiple Output modules as long as the 32A can bear the full load of all connected output modules and their load.

Relay2.jpg

Controlling roller/shutters

Set the Output module in shutter mode prior to connecting shutters! (normal mode is the default setting)

Store.jpg

In shutter mode, each of the 4 relay connectors will act as if they are coupled and are used to control the up and down action of a roller shutter. The 2 relays that control the 2 actions of each shutter cannot be switched on at the same time to prevent damage to the motor.

  • Shutter couple 1: Output 1 & 2
  • Shutter couple 2: Output 3 & 4
  • Shutter couple 3: Output 5 & 6
  • Shutter couple 4: Output 7 & 8

Import Remark

Before switching on the AC power to the Output modules running in shutter mode, please make sure that all relays are turned off. Output modules leaving the factory can have relays switched on resulting in damage of your equipment. If needed, test the state of the relay with a multi-meter prior to applying voltage!

Connecting open/close valves

Set the Output module in normal mode prior to connecting loads! (normal mode is the default setting)

The OpenMotics system allows you to connect 2 types of heating/cooling valves:

  • 0-10V regulated heating valves connected to the Dim Control module
  • Open/Close valves (24V, 230V etc) connected to the Output module

Below is an example design of a heating/cooling system with 13 actuators (valves) that work on 24VDC, a pump contact (when heating/cooling is required) and a dry contact that switches between cooling and heating.

HeatingCooling.jpg


Connecting the Dim Control Module

The Dim Control module has 8 analog 0-10V DC outputs that can be used to connect external 0-10V dimmers of various brands as well as 0-10V DC heating valves. Note that 1-10V external dimmers are not supported

If you have questions regarding which type of dimmer, heating valve/actuator or switch to use, please see the Additional Material page.

WARNING

The '-' or 'GND' connection is not the same as the earth or N connection of the mains 110-230VAC! The '-' or 'GND' connection are galvanically isolated from the VAC mains. On this module, only low voltage connections (max 12VDC) should be made. Incorrect wiring may cause severe injury, fire, broken equipment and even death.

Install the Dim Control module in your fuse box as described in the wiring the bus chapter and connect external dimmers or valves following the schematics below.

Front panel LED behavior is described here

Using an external 0-10V dimmer

Dimmer.jpg

To connect external dimmers to the Dim Control Module:

  1. Switch off the 12VDC power supply
  2. Each external 0-10V dimmer has a GND (or 0V) connection and an analog in (0-10V). Connect the GND connection of each external dimmer to the '-' or 'GND' of the Dim Control module
  3. Connect one of the 1-8 connectors of the Dim Control module to the 0-10V input of the external dimmer
  4. Follow the installation and safety instruction to connect the external dimmer to the light fixture

Connecting LED strips

Your can connect normal LED strips (single color or RGB) and have the possibility to dim your strips and choose your color (when using RGB strips) by using the OpenMotics Dim Control module.

Important remarks

  • You CANNOT directly connect LED strips to the 0-10V output of the OpenMotics Dim Control. The Dim Control module cannot drive LEDs directly and needs an external LED dimmer like the DimL3-5-360 or any other led dimmer with an 0-10V input.
  • When buying RGB LED strips, make sure you buy common anode strips if you want to use the aforementioned DimL3-5-360
  • When installing LED strips, it's advised to use protected strips (with IP6x) which are less sensible to break. For bathrooms or outdoor use, it's an absolute must to use LED strips with at least IP64 protection level.
  • 0-10V (current sourcing - compatible with the Dim Control module) and 1-10V (current sinking - NOT compatible with Dim Control module) are standards but not always used in the correct way by the different vendors so extra care needs to be taken before buying a driver. The example of the below LED driver (DimL3-5-360) which is a current sourcing type but still has an indication of 1-10V.

RGB LED strip example

Ledstrips.jpg

Single Color LED strip example

Ledstrips2.jpg

Connecting 0-10V heating valves

Up to 24 programmable thermostats can be controlled by the system. These thermostats will drive heating valves or actuators for PID driven proportional heating control.

The OpenMotics system allows you to connect 2 types of heating/cooling valves:

  • 0-10V regulated heating valves connected to the Dim Control module
  • Open/Close valves (24V, 230V etc) connected to the Output module

In the following example the Belparts Alpha-Actuator 4 is used.

Belparts.jpg

To connect Belparts heating valves to the Dim Control module:

  1. Switch off the 12VDC power supply.
  2. Ask a certified electrician to make the mains connection (110-230VAC) to the 24V power supply
  3. Switch off the 24VAC power supply.
  4. Connect the 0V or ground connection of the 24V AC power supply to the '-' or 'GND' of the Dim Control module.
  5. Connect the GND of each Belparts valve (blue cable) to the '-' or 'GND' of the Dim Control module. Only use cable designed for 250mA (or 2W) should be used (at least 0,5mm2).
  6. Connect the 24VAC of each Belparts valve (Black cable) to the 24VAC of the power supply. Only use cable designed for 250mA (or 2W) should be used (at least 0,5mm2).
  7. Connect the 0-10V of each Belparts valve (Red cable) to a dimmer output (1-8) of the Dim Control module.

Notes:

  • When the valves in the example above are powered on a self-test is performed. During this test (10 minutes) the valve will completely open and close so during that time the valves cannot be used.
  • The orange status LED will only blink when communication is happening between the Dim Control module and the Gateway module. In normal circumstances, the status LED will not flicker except when a dimmer output value is changed.

Connecting Daikin heating/cooling

OpenMotics supports the integration of Daikin equipment in combination (or without) other heating/cooling installations. For more details, please see Daikin Setup page


Temperature module

The Temperature module is typically used in STAR topology installations (since the micro CAN module used in BUS topology can be equipped with an onboard sensor so no additional cabling is needed). It adds environmental parameters to your OpenMotics system to control your heating and/or perform additional special functions (control stores/shutters when the sun is shining, switch on lights when movement is detected, switch on fan when humidity is too high etc.).

The system has been designed to handle sensors connected with very long cables (up to 200 meters). Each Temperature module can connect up to 8 different sensors and each OpenMotics system can handle up to 4 Temperature modules, thus enabling up to 32 sensors per installation.

Multiple types of sensors are available:

  • Temperature only
  • Temperature & light measurement (AD converter)
  • Temperature & humidity
  • Temperature, humidity and light (AD converter)

Install the Temperature module in your fuse box as described in the wiring the bus chapter and connect external sensors following the schematic below.

Temperature.jpg

To connect sensors to your Temperature Module:

  1. Switch off the power supply of the system
  2. Connect '-' or 'GND' on the Temperature module to the 'GND' connection of each sensor
  3. Connect '5V out' on the Temperature module to the '+5V' connection of each sensor
  4. Connect 'CLK' on the Temperature module to the 'SCL' connection of each sensor.
    • Note that the CLK (clock) wires of multiple Temperature modules should not be mixed. Every Temperature module must have its dedicated clock line for its connected sensors
  5. Connect each sensor' 'SDA' connection to an available 'SENSOR 1 - 8' connection on the Temperature module
    • Each of the 'SENSOR 1 - 8' connections can only be used to connect 1 sensor
  6. Switch on the power supply of the system
    • When a sensor is connected, the corresponding front panel LED on the Temperature module will light up. It will however take a few minutes before the system will see the correct environmental values, in the mean time, the system will show the sensor as "Not Connected"

Important Remarks

  • The sensors only work on the protected and current limited 5V provided by the Temperature module. The Temperature module can switch the 5V and thus reset the sensors when this would be required (sensor blocked for example). DO NOT connect them to any other source as this can destroy them!
  • Once a Temperature module has been added through the Cloud interface (or via maintenance mode), the orange front panel status LED will flicker every few seconds to indicate that communication is working. This is normal behavior.

Front panel LED behavior is described here

The sensors are typically installed behind light switches or even in empty wall mounting boxes finished by a blank (perforated) cover. Please ensure that there is no airflow in the mounting box (e.g. coming through conduit) and that enough insulation is used to ensure that the measurement reflects the room temperature and not the 'wall' temperature.

A method used by one of our customers is using a buzzer (in this case Btcino 0038/005045) since they are low cost. Simply remove the buzzer and insert the sensor instead.

Switch0.jpeg Switch1.jpeg Switch7.jpeg Switch8.jpeg Switch9.jpeg Switch2.jpeg

Some other examples:

Switch10.jpeg Switch11.jpeg Switch12.jpeg


Connecting the Energy (Power) Module

The Power module has been replaced by the Energy module and is no longer available for purchase. While the old Power module only allowed single phase and up to 8 current sensors to be connected, the new Energy module allows 3 phase and up to 12 current sensors. The front panel display has been removed and the module width increased to 6 (from 5).

Install the Energy module in your fuse box as described in the wiring the bus chapter and connect the current sensors as described.

Bus+power.jpg

The Energy modules must be connected to BUS2 of the Gateway module and not BUS1, see the wiring the bus chapter.

  1. Power off the 12VDC power supply and all 110-230VAC circuits prior to performing any work!
  2. Many voltage net configurations exist (single phase, 3 phase, WYE, delta, etc.). Please confirm which applies to your installation prior to installation
  3. Follow the instructions on the Energy Module Installation page.

Front panel LED behavior is described here

Cloud registration & connection

After all modules and cabling has been installed it is time to configure the system through the OpenMotics Cloud (optional, local connection only is also possible)

How to create an Administrator (full-access) account on your Gateway module:

  1. Take note of the ‘Registration Key’ listed on the label at the bottom or front of the Gateway module
  2. Using any common browser, go to https://cloud.openmotics.com/portal/register/
  3. Fill out the fields and enter the Registration Key as mentioned in step 1
  4. Log in to your account using https://cloud.openmotics.com/portal/login/
  5. Navigate to the Configuration menu and follow the instructions

Do not share your account details with anyone!

Remote controls and in-wall displays

OpenMotics also supports RTI and has created a 2-way driver on request of our customers. For more information, please see the RTI page.

The disadvantage of the RTI system is that it's not opensource and installer centric so if you happen to know a good quality 2-way remote and in-wall displays, please let us know on support@openmotics.com

RTI.jpg