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Instruction Manual RAK8-S 8-Channel Switching RAK 2024 Version 1.0.0
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For programming information: Wireless RAK Programming guide or Wired system Programming Guide For general system information: Wireless RAK Application Sheet or Wired RAK Application Sheet Contents 1WhatistheRAK8-S? 2Loadings 3RAK8-SCircuit Board 4Installation 5Programming Appendix 1: Diagnostics Appendix 2: RAK8-S wiring example 1WhatistheRAK8-S? TheRAK8-Sisan8-Channelswitching board designed to control non-dimmable loads such as lights, pumps and contactors. TheRAK8-S combinedwithaLinkdevice(Rx-LINK or RAK-LINK) can either be used as a single 8-Channel unit or formed into a "stack” of up to 32 circuits or 4 RAK boards. NB TheRx-LINK has a limit of 16 Channels per unit, if more Channels are required then additional Rx-LINK units must be used. 2Loadings Load Type Symbol Examples MaximumLoad All LED fittings: GU10, integrated, LED 300W Mains LED tape, driver etc LED Incandescent Mains halogens, tungsten fittings etc 600W Wire wound transformer, 12V MR16 Gu5.3 300W Transformer Halogen etc (cos φ => 0.6) Fan, Pump and all other forms of motor 1A(⅓HPFan) Motor RAK8-S Manual Version 1.0.0
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3RAK8-SCircuit Board 1. RJ45 Port 1 - Power Carrier For connection to the RAK-LINK/Rx-LINK, as well as looping between RAK’s. 2. RJ45 Port 2 - Non-Power Carrier For connection between RAK8’s only, this port cannot be connected directly to the RAK-LINK/Rx-LINK. 3. Display Theseven-segment display is used for diagnostic feedback for the RAK8-S, see the appendix for more information see Appendix 1: Diagnostics for more information. 4. Test Buttons Usedfor manually switching the outputs on and off, this can be used to test outputs before the RAK8-S has been programmed. 5. Address DIP Switches Dip switches are used to assign unique box numbers to each RAK8, for more information, see the Wired System Programming Guide. 6. Mains Input The230VACmainssupplyiswiredintothethree terminals on the Mains Input. 7. Output Fuses Theswitched outputs have individual 5A fuses, if there is no output Voltage on the output, it is advised to test the 5A fuse first. 8. Switched 230V Outputs Theswitched live outputs are connected into terminals 1 to 8, the Neutral and Earth conductors are connected at the back section of the case via the bus bars, see 4 Installation for further information. RAK8-S Manual Version 1.0.0
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4Installation Installation should only be carried out by a competent electrician. Secure the metal box housing Step 1 to the wall or a secure mounting position. TheRAKsystemrelies on being vertically mounted to allow the ventilation system to work properly. Using the top and left entry Step 2 points, bring a separate 10A protected supply to each RAK case. Connect the Neutral and Earth to the busbars as shown. Bring the live to the front of the metalwork ready for connection to the circuit board. Bring a single Neutral and Earth Step 3 from the busbars to the front of the metalwork. Prepare screws on either side of metal work ready to hold the circuit board. They should be present and screwed loosely into the case. RAK8-S Manual Version 1.0.0
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Place the circuit board on the Step 4 two screws on either side of the metalwork. Donotscrewdownatthis stage as the busbars need to beaccessible for Neutral/Earth connections of lighting circuits. Connect Live, and link the Neutral/Earth terminals to the bus bar. Step 5 Connect Neutral and Earth conductors for the loads to the appropriate BUS bars in the back of the casing. Connect the switched live conductors to the ‘Output’ terminals of the RAK8-S. RAK8-S Manual Version 1.0.0
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Insert the RJ45 cable from the Step 6 RAK-LINK/Rx-LINK into port 1 of the RAK8-S, and use port 2 to loop to another RJ45 cable to each RAK in the “stack”. NB Donotuseport2toconnectto the RAK-LINK, only use port 1. Screw down the circuit board to Step 7 secure it to the case and fit the lid to complete the installation. 5Programming Before the RAK8-S can operate via controls, it will need to be configured using Rasoft Pro software. If an Rx-LINK is being used with the RAK8-S, follow the Wireless RAK Programming Guide. If a RAK-LINK is being used with the RAK8-S, follow the Wired System Programming Guide. RAK8-S Manual Version 1.0.0
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Appendix 1: Diagnostics Thedisplay on the RAK8-S has useful diagnostic information which can help with fault finding. Bootloader WhentheRAK8-Sisupdatingfirmware, the device will be put into bootloader. Bootloader Sleep Onceafirmwareupdatehascommenced, bootloader will go into bootloader Sleep andwait for the upgrade to complete. Local Channel Whenreceiving data from the RAK-LINK, the RAK8-S will flash ‘L.’ when receiving a command. Error Whenthetestbuttonis pressed and there is an error communicating with the Channel, ‘E’ will appear on the display. Receiving Channel Data When‘t’ shows on the display, it means that the RAK8-S is receiving Channel Data relevant to the RAK8-S. For example: If a circuit for ‘Kitchen’ has beenmappedtotheRAK8-S,anda ‘Kitchen’ command is received, ‘t’ will show onthedisplay momentarily. Passive data receive WhentheRAK8-SreceivesChanneldata which is not relevant to its mappings, it will momentarily flash ‘-’. This is a useful diagnostic indicator to check if a RAK8-S is receiving data from the RAK-LINK or Rx-LINK. RAK8-S Manual Version 1.0.0
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Appendix 2: RAK8-S wiring example: TheRAK8-Shasa230Vmainssupplyinput,theEarthandNeutralmustbeconnectedto the BUS bar behind the circuit board, as do the Earth and Neutral for any of the loads. Theexampleshownhasasingleloadconnectedfordemonstration, additional loads can be connected to a single Channel (such as multiple downlights) by looping in and out of the light fittings, providing that the loading is permitted on the RAK8-S (see 2 Loadings). RAK8-S Manual Version 1.0.0
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