Foreword: The purpose of this document is to describe how to install and configure Neets 4 relay box COPYRIGHT All information contained in this manual is the intellectual property of and copyrighted material of Neets. All rights are reserved. You may not allow any third party access to content, information or data in this manual without Neets express written consent. CHANGES Neets reserve the right to change the specification and functions of this product without any notice. Questions, AFTER reading this manual, can be addressed to your local dealer or: Neets Torvet 4 8700 Horsens Denmark by E Mail: Support@Neets.dk or you may use our contact form at www.neets.dk Revision list: Author: Date Description Pages SDV 29 09 09 New design All Page 1 306 0008 002 001 Rev300 Neets 4 relay
Index Foreword:... 1 Revision list:... 1 Index... 2 Description... 3 Technical specification... 5 How to connect it?... 6 Connecting the Relay box to the control system.... 6 Controlling a electrical screen or lift... 7 Cable in/out of the box... 8 How to connect more than 2 relay boxes to one RS 232 Line... 9 Change the ID number of the relay box.... 10 RS 232 protocol... 11 Commands... 11 Controlling the relays... 12 Linking two relays together... 14 Example... 15 Adding additional security... 17 Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 2
Description The Neets 4 Relay box gives you up to 4 dry contact relays that each can be controlled by a control input 1 (Supported by all Neets Control systems) or by RS 232. The relay box can be used in ether low voltage or high voltage (230VAC) mode, and never at the same time. On each of the four relays you have access to both the NO (Normal open contacts) and the NC (Normal close contacts). This gives you the opportunity to use it according to your needs. NO NC When using the Neets 4 relay box you have the benefit of selecting what type of voltage you want to use at installation time. Com The flexibility of the relay box offers you the possibility to control high voltage or low voltage (Please note that high and low voltage cannot be used simultaneously). Safe way to control a screen or lift The relay box, offers you the possibility to link two relays together and thereby adding extra security when controlling e.g. screen or projector lift. When two relays are linked together only one of the relays can be Set at a time. Furthermore, you can define the time from one of the linked relays is Released to it is possible to Set a relay again, this time adds additional protection of the connected screen/lift motor. When using this security feature, it is active whether you control the relay box by the 4 control inputs or by RS 232. Note that the relay box s relay 1 and 2 from factory is configured to control a 230 VAC screen or lift. Using the Screen connector and there for you must not use the Relay 1 and Relay 2 connectors. If you do not want to use the Screen connector, please remove fuses F1 and F2 Screen 5A. Read the section Controlling an electrical screen or lift on page 7 for further details. When 4 relays are not enough The Neets relay box gives you the possibility to connect up to 4 boxes together on the same RS 232. When doing this you get up to 16 relays that are all controllable individually by only one RS 232 port. 1 Control inputs is the name used in this manual for the 4 inputs that allows the Neets control system to control it directly. Page 3 306 0008 002 001 Rev300 Neets 4 relay
All Neets control systems support up to 2 relay boxes on one RS 232 port as it is. If you want more than 2 relay boxes on a RS 232 port, you have to use an active splitter and connect it as shown on page 9. Screen control connect 230VAC power in Relay Fuse to enable screen mode on Relay 1 and 2 Test buttons for manual activation of a relay LED for indication of the relay state Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Control Page 4
Technical specification Technical details: Power supply (For control systems) Relay load max AC1: Relay load max AC15 (230VAC): Relay Single phase motor rating (230 VAC): Relay max voltage: 12 V Dc/400mA 1150 Watt 500 Watt 370 Watt 230 VAC Control inputs: PWR OUT: Active when connected to ground. 12 V Dc/300 ma RS 232 communication: 9600 baud rate, 8 bit, 1 stop, none parity Page 5 306 0008 002 001 Rev300 Neets 4 relay
How to connect it? This section will explain how to connect the Neets Control EU with the Relay box 306 0003. It will also give some examples on how to connect an external device to the relay box. Please note that there are several other ways to use the relay box than described in this guide. ALWAYS be sure that 230 VAC is disconnected when installing/changing ANYTHING. When you receive the relay box, relay 1 and 2 are already configured to run screen mode. If you do not want to use the screen mode or control low voltage unites always remember to remove fuses F1 and F2 (Screen 5A) Connecting the Relay box to the control system. Pin name GND RELAY 4 RELAY 3 RELAY 2 RELAY 1 PWR OUT GND RS 232 in GND Description Ground Control input for Relay 4. Relay is activated when pin is connected to GND. Control input for Relay 3. Relay is activated when pin is connected to GND. Control input for Relay 2. Relay is activated when pin is connected to GND. Control input for Relay 1. Relay is activated when pin is connected to GND. 12 V Dc positive supply for the control system Ground RS 232 Receive data from control system (or PC when testing or setting up the relay box) Ground If you control the relay box with both its input controls and by RS 232, you have to be aware that if the relay is activated by RS 232, you cannot release it with the input controls and vice versa. When controlling the relay box from the Neets Control EU system you can connect it like this: Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 6
Controlling a electrical screen or lift The relay box offers you easy connection of an electrical screen or lift. By using the screen terminals you get an easy connection of your screen and even more the high security mode prevent you from accidentally making short circuit. The Relay 1(RELAY 1) is now controlling the screen in one direction, and there is ONLY power to the screens other direction (RELAY 2) when Relay 1(RELAY 1) is Released. Be sure to set up the software to fit this hardware configuration. To enable the screen mode insert the fuses F1 and F2 (Screen 5A) Page 7 306 0008 002 001 Rev300 Neets 4 relay
When using the screen connector, you must not use the Relay 1 and Relay 2 connector also. Dry contacts free to be used Cable in/out of the box The relay box comes with rubber globs, that allow you to use any cable size you want, and the taps inside the box gives you a good and flexible way of safely fixating the cable. Use the include binders to tie the cables like below or what fits your installation. Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 8
Use included binders to secure the cables. How to connect more than 2 relay boxes to one RS 232 Line A standard RS 232 line only allows you to have two RS 232 devices attached. If you need more than two, you have to use the Neets Serial splitter 1 4 as well. Below you can see how it can be connected. Page 9 306 0008 002 001 Rev300 Neets 4 relay
Change the ID number of the relay box. The relay box can be assigned an ID that allows up to 4 individual relay boxes to be connected to the same RS 232 port. When power is connected to the relay box the four led on the relay box will indicate the ID number of the relay box for 3 seconds (See table below for details). To change the ID number of the relay box you must connect power to the relay box and within 3 second press and hold down the test button for four seconds. The test button you press must correspond to the ID you want to assign. Relay box ID LED status when power on Test button to press when changing to this ID None/0 Relay 1 + 2 + 3 + 4 2 1 Relay 1 2 Relay 2 3 Relay 3 4 Relay 4 2 This is the default settings. Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 10
RS 232 protocol It is possible to control the relay box from a control system or a computer that is equipped with an RS 232 port. Communication condition The serial port on the device that controls the relay box must match the following: Description Settings Baud rate 9600 Data length 8 bit Parity bit None Stop bit 1 bit Flow control None Commands When entering all the commands in the Neets Control Utility software, select Chr as input format. To easier understand the commands below please keep this in mind. Symbol Description <X> When constructing the command, this part must be replaced with a sting or number. [ ] The braces indicate that what is inside only have to be included in the command the function is required. In the command, the braces are not included. \CR Every command line must end with a carriage return. Carriage return is commonly referred to as CR or if you need to enter it in hex the value is 0D and in decimal it is 13. Please be aware that all the RS 232 commands are case sensitive. If the relay box detects an error in the command line, the entire command will be ignored. Sending multiple commands is possible without time delay between commands. Just remember that each command must end with \CR. To do this in the Neets Configurations Utility please look below: We want to send two commands: Relay=1,Action=Set\CR and Relay=2,Action=Release\CR Page 11 306 0008 002 001 Rev300 Neets 4 relay
This character has been entered by changing to input format Hex and type in the value 0D and then change bach to input format Chr. Controlling the relays The RS 232 commands gives you fully control over all the relays. You can do simple things like Set, Release or Toggle the state of a relay. More advance functions like Delay and Time is also supported. Command:Relay=<Y>,Action=<X>[,Delay=<W>][,Time=<Q>][,Unit=<Z>]\CR Relay=<Y> Description 1 4 Set the number of the relay that you want to control. Action=<X> Set Release Toggle Description Set the relay Release the relay Toggle the relay. (if the relay is Set it will be Released and vice versa) Delay=<W> Description 0 6553.5 Set the time (in seconds) from the command is send to the action is executed. The minimum step is 100 ms. Time=<Q> Description 0 6553.5 Set the time (in seconds) from the action is executed to the relay returns to its original state. The minimum step is 100 ms. Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 12
Unit=<Z> Description 0 4 Set the ID number of the relay box this command is intended to. If Unit number is 0 or not used the message will be send to all relay boxes. Below you find some examples on how to control the relays. 1. Activate relay 2 on all relay boxes connected. Relay=2,Action=Set\CR When entering this command in the Neets Configurations Utility it looks like this: 2. Activate relay 3 for 20 seconds on relay box with ID unit 2. Relay=3,Action=Set,Time=20,Unit=2\CR 3. Toggle relay 4, 12 seconds after the command is send and then hold it for 5,8 seconds. Relay=4,Action=Toggle,Delay=12,Time=5.8,Unit=2\CR Page 13 306 0008 002 001 Rev300 Neets 4 relay
Linking two relays together As mentioned earlier, it is possible to link two relays together. Two linked relays are not able to be Set at the same time and further more it is possible to define the time from one relay is released to the next can be Set. Command:Group=<G>,Action=<X>[,Delay=<W>][,Unit=<Z>]\CR Group=<G> Description 1 Relay 1 and 2 2 Relay 3 and 4 Action=<X> Lock Unlock Description Lock the selected group. Unlock the selected group. The relay in the group is no longer linked. Delay=<W> Description 0 25.5 Set the time (in seconds) from one relay is released to the next in the group can be Set. The minimum step is 100 ms. Unit=<W> Description 0 4 Set the ID number of the relay box this command is intended to. If Unit number is 0 or not used the message will be send to all relay boxes. Below you find some examples on how to link and unlink relays together: 1. Link relay 1 and 2 together on all relay boxes connected. Group=1,Action=Lock\CR 2. Link relay 3 and 4 together and set the safety delay to 3,6 seconds on all units connected. Group=2,Action=Lock,Delay=3.6\CR 3. Unlink relay 1 and 2 on the relay box with ID number 3. Group=1,Action=Unlock,Unit=3\CR Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 14
Example In this section, you can read how an installation with projector, electrical screen, and electrical lift can be done. On the hardware side, we need: 1 projector 1 Neets Control EU Professional or Neets Control DK 1 Neets 4 relay box Below you find the wiring diagram that shows the communication lines. The relays now have the following functions. Page 15 306 0008 002 001 Rev300 Neets 4 relay
Relay Relay 1 Relay 2 Relay 3 Relay 4 Function Screen up (It takes 26 sec to move the screen up) Screen down (It takes 20 sec to move the screen down) Lift up (It takes 22 sec to move lift up) Lift down (It takes 22 sec to move lift down) Then application must be able to control the system: When the projector is turned on the lift and screen must move to the down position. When the projector is turned off the lift and screen must move to the up position. There must be a manual control for the screen. Command to be used when turning on the projector: Relay=1,Action=Release\CR Relay=2,Action=Set,Time=20\CR Relay=3,Action=Release\CR Relay=4,Action=Set,Time=22\CR Command to be used when turning off the projector: Relay=2,Action=Release\CR Relay=1,Action=Set,Time=26\CR Relay=4,Action=Release\CR Relay=3,Action=Set,Time=22\CR Command to be used when manually moving the screen down: Relay=1,Action=Release\CR Relay=2,Action=Set,Time=20\CR Doc no#: 306 0008 002 001 Rev300 Neets 4 relay Page 16
Command to be used when manually moving the screen up: Relay=2,Action=Release\CR Relay=3,Action=Set,Time=26\CR Adding additional security The system we have designed now is working and with the screen and lift wired up in high security mode, there are no chances for shortening the motors. Many motors specifies that a certain time is required from power is disconnected from one direction to power is connected in the other direction. By grouping the relays that controls the screen and lift, it is possible to define the time that must elapse from one relay is Released to the next is Set. Device Screen Lift Minimum time for changing from one direction to another 1,0 seconds 2,5 seconds The commands the must be used to achieve this function is: Group=1,Action=Lock\CR Group=2,Action=Lock,Delay=2.5\CR It is only necessary to send the two commands one time, the settings will be stored in the relay box, also after power has been removed. Page 17 306 0008 002 001 Rev300 Neets 4 relay