Hardware Installation Guide

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Welcome to the Hardware Installation guide which will explain how to install and interconnect the OpenMotics modules
The OpenMotics Modules

General

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:

  • Input Module: 3T
  • Output Module: 6T
  • Dim control Module: 3T
  • Temperature (sensor) module: 3T
  • CAN module: 3T
  • Gateway: 6T
  • Power supply 12VDC: 3T (current model), 4T (old model)
  • Power Module 8 ports 1phase: 4T
  • Power Module 12 ports 3phase: 6T

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 Power Supply for your OpenMotics system with minimal following requirements:

  • 12VDC
  • Minimum 2A (but can be higher depending on the Number of modules being used)
  • CE approved Power supply

We advise to use the OpenMotics Power supply since we're sure this configuration is fully CE compliant.

Leds on the modules

To understand the functionality of the different leds on the Openmotics modules, please see the below links:

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 12V Power supply is simple and straight forward. The below example shows how a starterkit is connected. Please note that a different 12V power supply can be delivered but the principle remains the same. For the rest, set the jumper on the first and last module of the BUS. If more modules needs to be connected, you just extend the bus and add more modules but always make sure that the termination jumper is always set on the first and last module.

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.

The Gateway has 2 RS485 bus connections:

  • Bus 1: This is an RS485 bus to connect all the OpenMotics Modules except the Power & Energy Modules
  • Bus 2: This is an RS485 bus to connect only the OpenMotics Power & Energy Modules (for measuring all power related metrics)

Please note that 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 in each RS485 bus must have a terminator which is set by a jumper, the other modules must have the termination jumper removed.

These are the steps to connect the Bus:

  1. Ask a certified electrician to make the mains connection (110-230VAC) to the 12V power supply. Make sure it is installed on a separate circuit breaker so Maintenance can be easily performed.
  2. Make sure the 12VDC (Min 4A) power supply is switched off.
  3. Connect the +12V and the GND of the power supply to the 12V IN connection of the Gateway
  4. Connect the '-' output of the 12V OUT connection of the Gateway to all '-' connectors on the Modules, see black wire. please use cable with sufficient diameter (depending on the number of modules) that can support the peak currents (when switching relays for example)
  5. Connect the '+' output of the 12V OUT connection of the Gateway to all '+' connectors on the Modules, see red wire.
  6. Link the 'AH' BUS1 connection of the Gateway to the 'AH' connectors of all the Modules: from the 1st to the 2nd Module, 2nd to the 3rd … See the blue wire. The A (AH) and B (BL) line must run over twisted pair, any cat5 or better cable can be used.
  7. Link the 'BL' BUS1 connection of the Gateway to the 'BL' connectors of all the Modules: from the 1st to the 2nd Module, 2nd to the 3rd … See the green wire. The A (AH) and B (BL) line must run over twisted pair, any cat5 or better cable can be used.
  8. The OpenMotics bus (AH and BL) needs termination on both ends. This means that the first and last Module on the bus must have the termination jumper set; all the other Modules must have the termination jumper removed. The termination jumper can be found on every Module next to the AH/BL connection and is marked as 'TERM'. The Gateway has 2 termination jumpers (TR1 and TR2) for each bus, if the gateway is first or last for a certain bus, please put the appropriate jumper. In this example since the Gateway terminates RS485 BUS1, jumper TR1 must be set. In this same example, if Power modules are connected, jumper TR2 must be set as well since the Gateway is the starting point of the bus.
  9. Connect the ethernet connection on a network that is internet connected. This network can be protected by firewall and other security measurements. The only requirement is that DHCP is enabled on the network.
  10. Power on the 12VDC power supply and check the status of the Modules on the bus (power LEDs on all Modules should light up). When the power LEDs do not light up, immediately switch off the power supply and look for possible causes.
  11. Power off the 12VDC power supply and connect all the inputs and outputs of your installed Modules.
  12. Execute the initialization process. For more information, please refer to the CLI Basic System Setup or use the OpenMotics Cloud for a graphical setup.
  13. Optional steps:
If thermostats are installed, execute the thermostat process as noted in the CLI Thermostat Setup or use the OpenMotics Cloud for a graphical setup.
For advanced features please refer to the CLI Advanced Setup guide or use the OpenMotics cloud.

As an example, we've put a gateway, a power measurement module and an input module in a network diagram. Of course, more modules can be connected on both bus 1 and 2, just make sure the jumper for each bus is set on the first and last module. Please also note that the power measurement modules can only be connected on Bus 2, all other modules must be connected on Bus 1.


Bus+power.jpg


Connecting the Input Module

The Input Module is used to connect switches or any other kind of input device (i.e. motion detectors, window/door contacts, pulse outputs for electricity/water/gas etc.). An input module will detect any input as being triggered when the ground ('GND') is applied to it. NO (normally Open) as well as NC (Normally closed) type of switches can be connected.

Typically, every switch in your house/appartment goes from the switch to the input modules by using for example UTP cabling. For connecting all cables, a star topology is used. When bus cabling between all switches are used, please see the CAN modules.

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 GND (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 experts, Open collector outputs can be used as well when properly designed). See PIR Motion Detector for more explanation.
  • The GND connection on the Module is used as the common wire, the second wire must be connected to one of the inputs ('INPUT 1-8'), see drawing.
  • Switches of any brand that are “bounced potential free” can be used.
  • The cables that connect the switches with the input modules can be any low voltage cable (alarm cable, UTP etc.).
  • On the Bottom connector of the input module, you have 12 connections: Con1 - GND, con2 - Inp1, Con3 - Inp2 etc. Connection 10 (-) and connection 12 (-) cannot be used and these connection are NOT connected to the ground. For ground connections, please use connection 1 or 11.
  • Once an input module has been added through the portal (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.
  • AN 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 others) to an Input Module

Different type of motion sensors can be connected to the Openmotics system.

See PIR Motion Detector for more explanation.

Motion Sensor.JPG

Connecting a CAN Control Module

Connecting Micro CANs

The Openmotics system also supports switches that are connected in a bus configuration. For this Bus, CAN is used. The CAN control module will do the conversion between RS485 and CAN.

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

CAN Micro2.jpg


On the CAN Micro, switches and leds but also sensors can be connected.


CAN Micro1.jpg



CAN Micro3.png

For all the details on color codes and connections of the CAN Micro module, see CAN Micro Connections.

Important Remark: When adding or removing sensors, always disconnect the power before doing the wiring. A reset is also needed when the configuration of the sensors have been changed.

Connecting DALI equipment

The wiring of a DALI setup must be done as seen in the below schematic:

DALI.jpg

For normal operations, Connector A and B (female and male DB9 connector) must be interconnected. When initialisation of the DALI modules is needed, Connector A must be connected to an USB-RS232 convertor which is connected to your PC with DALI software installed.

For more information regarding DALI equipment, see the DALI Installation Guide

Connecting the Output (Relay) Module

The Output Module comes equipped with 8 bistable 16A NO relays to control 8 electrical circuits or 4 roller shutters. Bistable 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 bistable relay consumes no power (except when toggled). The relays are used to switch the AC mains (110-230VAC) as well as low voltage DC loads.

Output module for switching AC loads

Relay.jpg

Important Remark: The Open Motics module has 2 output banks:

  • Bank1: Relay 1, 2, 3 and 4
  • Bank2: Relay 5, 6, 7 and 8

Bank1 has a common connection for his 4 relays as well as Bank2 In other words, there is no galvanic separation for the 4 relays within a bank since you've a common connection per bank. However, you've a 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 mains as well because they share the same common wire.

Relay2.jpg

In the above example, we've also put the circuit breakers. The design of the circuit breakers depends on the electrical installation, the load and the local regulations. Many of our customers uses 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.

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

Output module to drive actuators for heating/cooling

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

HeatingCooling.jpg

Output module as Roller/shutter module

In its default mode the Output Module switches 8 electrical circuits, but the Module can also switch to Roller/Shutter mode to control 4 roller shutters:

Store.jpg

  • Each of the 4 AC connectors are coupled and used to control the up and down action of a roller shutter:
    • Roller Shutter couple 1: Output 1 & 2
    • Roller Shutter couple 2: Output 3 & 4
    • Roller Shutter couple 3: Output 5 & 6
    • Roller Shutter couple 4: Output 7 & 8
  • The 2 relays that control the 2 actions of each roller shutter cannot be switched on at the same time to prevent damage to the motor.
  • Enabling Roller Shutter Mode:
    • Before entering the "module discover start" command press the button next to the programming connector for 5 seconds
    • The LEDs of outputs 1, 3, 5, 7 (= 4 sets of roller shutters) will blink several times to indicate that the Module is now in Roller Shutter Mode
    • The Module's ID has now changed to "R"
  • Disabling Roller Shutter Mode:
    • To restore the Module to its (default) state, press the press the button next to the programming connector for 5 seconds before entering the "module discover start" command
    • All 8 output LEDs will blink several times to indicate that the Module is now in its default mode
    • The Module's ID has now changed to "O" (default)

Note: The orange status led will only flicker when communication is happening between the module and the Gateway. In normal circumstances, the status led will not flicker except when a port will change state.

Import Note for Roller/Shutter Mode: Before switching ON the AC power on the Roller/shutter modules, please make sure that the modules are in Roller/Shutter mode AND are initialized.

Connecting Daikin heating/cooling

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

Daikin.jpg

Connecting the Dim Control Module

The Dim Control Module has 8 analog 0-10V DC outputs that can be used to connect 0-10V dimmers of various brands as well as 0-10V DC heating valves.

Use of 110-230VAC dimmer

Dimmer.jpg

To connect dimmers to the Dim Control Module:

  1. Switch off the 12VDC power supply.
  2. Each 0-10V dimmer has a GND (or 0V) connection and an analog in (0-10V). Connect the GND connection of each dimmer to the GND of the Dim Control Module.
  3. Connect one of the 1-8 connectors of the Dim Module to the 0-10V input of the dimmer.
  4. Connect the Circuit breaker switched VAC mains to the external dimmer modules followed by the lighting fixtures (please use a qualified electrician to make those connections). Always switch off your Circuit breakers before making any modifications or making any connections to the dimmers or OpenMotics system.
  5. Power on the 12VDC power supply and check the status of the Modules on the bus (power LEDs on all Modules should light up). When the power LEDs do not light up, immediately switch off the power supply and look for possible causes.
  6. To test Dim Control outputs: the CLI instruction “output on 5” will switch ON output 5, “output on 5 63” will switch ON output 5 at full light capacity, “output on 5 31” will switch ON output 5 at half capacity, “output off 5” will switch OFF output 5.


WARNING

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

Connecting Led strips

Your can connect normal ledstrips (single color or RGB) and have the possibility to dim your strips and chose your color (when using RGB strips) by using the Openmotics Dim Control.

Important remarks:

  • You CANNOT directly connect Ledstrips to the 0-10V output of the Openmotics Dim Control. The Dim Control cannot drive leds directly and needs a Led dimmer like the DimL3-5-360 or any other led dimmer with an 1-10V input.
  • When buying RGB leds strips, make sure you buy common anode strips if you want to apply the DimL3-5-360
  • When installing ledstrips, it's advised to use protected strips (with IP6x) which are less sensible to break. For bathrooms or outside, it's an absolute must to use ledstrips with at least IP64 protection level.

The below examples uses 3 outputs of 1 Dim Control, of course, you can use all 8 outputs for more ledstrips or any other type of dimmers.

RGB Led strip

Ledstrips.jpg

Single Color Led strips

Ledstrips2.jpg

Connecting 0-10V Heating Valves

Your OpenMotics system can control up to 24 programmable thermostats. These thermostats will drive heating valves or actuators for PID driven proportional heating control.

The OpenMotics system allows you to connect 0-10V regulated heating Valves as well as any other (24V, 230V etc) Open/Close valves. When the Open/Close valves are used, these are directly connected to an Output (Relay) Module.

When regulated 0-10 Valves are used (Brand Belparts for example), these valves are connected to the Dim Control Module as described below. 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 output of the 24V AC power supply to the GND of the OpenMotics system. This can be done by connecting the GND of the 12V DC output to the GND (or 0V) output of the 24V AC output.
  5. Connect the GND of each Belparts valve (blue cable) to the GND of the system. 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 an output (1-8) of a Dim Control Module.
  8. Power on the 12VDC and 24 VAC power supply and check the status of the Modules on the bus (power LEDs on all Modules should light up). When the power LEDs do not light up, immediately switch off the power supply and look for possible causes.

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 flicker when communication is happening between the module and the Gateway. In normal circumstances, the status led will not flicker except when a port will change state or when the dimmer output value is changed.
  • If you've some questions regarding which type of dimmer, heating valve/actuator or switch to use, please see the Additional Material page.


WARNING

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

Connecting the Temperature Module

The Temperature Module adds environmental parameters to your OpenMotics system to control your heating and/or perform additional special functions (control stores when 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 providing up to 32 sensors.

Multiple types of sensors exist:

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


Temperature.jpg

To connect sensors to your Temperature Module:

  1. Switch off the 12VDC power supply.
  2. Connect the GND connector of the Module to the GND connector of each sensor as shown on Figure 10 below.
  3. Connect the 5V out connector to the +5V connector of each sensor.
  4. Connect the CLOCK connector to the CLK input of each sensor. Please note that the CLOCK wires of multiple Temperature Modules can NOT be mixed. Every Temperature Module must have its dedicated clock line for his connected sensors.
  5. Connect each sensor SDA connector with 1 individual Module input (’1-8').
  6. Power on the 12VDC power supply and check the status of the Modules on the bus (power LEDs on all Modules should light up). When the power LEDs do not light up, immediately switch off the power supply and look for possible causes.

Notes:

  • 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 !!!
  • When a sensor is connected, the led on the temperature module of that sensor will light up (when the system is not in power safe mode). It will however take a few minutes before the Master will see the correct environmental values, in the mean time, the Master will show the sensor as "Not Connected".
  • Once a Temperature module has been added through the portal (or via maintenance mode), the orange status led will flicker every few seconds to indicate that communication is working. This is normal behavior.


To built-in a sensor, different methods can be used. What often is applied by our customers is using the casing of a buzzer (example Btcino 0038/005045). Those buzzers are low cost and we just remove the buzzer and insert the sensor instead. The pictures below shows an implementation which is easy and straight forward. As a side note: Please use some silicon to cover the holes at the backside of the buzzer module to prevent wind and cold in your wall that can influence the temperature sensor measurement.

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

Some other examples:

Switch10.jpeg Switch11.jpeg Switch12.jpeg

Connecting the Power Module

Bus+power.jpg

The Power modules must be connected to RS485 BUS2 of the Gateway and NOT on BUS1 !!

  1. Make sure the 12VDC power supply is switched off.
  2. Connect the '-' output of the 12V OUT connection of the Gateway to all '-' connectors on the Power Modules.
  3. Connect the '+' output of the 12V OUT connection of the Gateway to all '+' connectors on the Power Modules.
  4. Link the 'AH' BUS2 connection of the Gateway to the 'AH' connectors of all the Power Modules: from the 1st to the 2nd Module, 2nd to the 3rd …
  5. Link the 'BL' BUS2 connection of the Gateway to the 'BL' connectors of all the Power Modules: from the 1st to the 2nd Module, 2nd to the 3rd …
  6. The OpenMotics bus2 (AH and BL) needs termination on both ends. This means that the first and last Module on the bus must have the termination jumper set; all the other Modules must have the termination jumper removed. The termination jumper can be found on every Power Module next to the AH/BL connection and is marked as 'TERM'. The Gateway has 2 termination jumpers (TR1 and TR2) for each bus, if the gateway is first or last for a certain bus, please put the appropriate jumper. In this case if the Gateway is the first/last modules on BUS2, jumper TR2 must be set.
  7. Power on the 12VDC power supply and check the status of the Power Modules on the bus (power LEDs on all Modules should light up). When the power LEDs do not light up, immediately switch off the power supply and look for possible causes.
  8. Power off the 12VDC power supply and all 230V circuits.
  9. Connect the 230V L and N on the power module. When more then 1 power module is used, make sure the CT's are installed on the same phase of the 230 L and N connection of that module.
  10. Connect all the current transformers (CT's). Make sure that the CT is around 1 (Line or Neutral) of the 2 cables of load to be measured. When you put the CT around the 2 cables (Line and Neutral), the current measured will always be 0. Make sure the Voltage connection (230V L N connection on the power modules) and the load connection is on the same phase.
  11. Execute the initialization process. For more information, please refer to the OpenMotics Cloud for a graphical setup.


CT1.jpeg CT2.jpeg CT3.jpeg

The above picture shows a closed CT, an open CT and a CT installed around a load cable. As you can see, the CT is installed around 1 of the 2 cables. Please note that the direction of the CT is not important, the firmware will correct the direction when needed. Please also note that the CT cable (white and black cable on above picture) must be cut at the right length, the shorter the cable, the better.

Remote controls and wall screens

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 know good quality 2-way remotes and wall screens, please let us know on support@openmotics.com.

RTI.jpg