User`s Manual - Aruna Advanced Automation, LLC
Contents
1. Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 112. The following material has been extracted from Digi Application Note XST ANO10a June 2012 Read the entire application note go at http ftp1 digi com support images XST ANO10a MaximizingRange pdf Visual vs RF Line of Sight Attaining RF Line of Sight LOS between the sending and receiving antennas is essential in achieving long range in wireless communication systems There are two types of LOS that are generally used to describe an environment e Visual LOS is the ability to see from one site to the other It requires only a straight linear path between two points e RF LOS requires not only visual LOS but also a football shaped path free of obstacles for data to optimally travel from one point to another Fresnel Zone The Fresnel Zone can be thought of as a football shaped tunnel between two sites that provides a path for RF signals In order to achieve the greatest range the football shaped path in which radio waves travel must be free of obstructions Buildings trees or any other obstacles in the path will decrease the communication range If the antennas are mounted just barely off the ground over half of the Fresnel Zone ends up being obstructed by the earth resulting in significant reduction in range To avoid this problem the antennas should be mounted high enough off of the ground so that the earth does not interfere with the central diameter of the Fresnel zone It is also important to understand that the environment may change over
3. User s Manual WSN 100 INDUSTRIAL WIRELESS RELAY SET Aruna Advanced Automation LLC WWW ARUNAAUTOMATION COM 925 683 6258 WSN 100 Wireless Relay Set User s Manual Contents Introductio sta u usa an te ian usa y usa y hua y hua a 2 Site Considerations 3 Visual vs RF Line of Sight 3 Fresnel Zone u au tas has haasi hayu once Scie 3 Mounting Considerations 3 Standard Installation 4 WSN 100T Transmitter 4 WSN 100R REGCCIVOR oneni soora eiae EREE aS Sua tees ese EEEE Eaa 5 Typical Wiring Schematic 6 Using Normally Closed Contacts 7 WSN 100 Specifications 8 Radio Specifications 9 Warranty Terms and Conditions 10 Regul
4. atory Approvals 11 Technical Support 11 Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 1 WSN 100 Wireless Relay Set User s Manual Introduction The WSN 100 Wireless Relay Set is a ruggedly built wireless solution for connecting two dry contact sensor inputs to two remote relay outputs in an industrial environment By eliminating the need for wire and conduit between the floats or operator switch and the process controller the WSN 100 can save labor and material costs when compared to traditional wired installations The system consists of two units a sensor input transmitter and a relay output receiver The transmitter has two optically isolated inputs for OV dry contacts The receiver has three relays one relay output for each sensor input and one relay output for a transmitter fault and four visible LED indicators for power transmitter fault and the two outputs Typically the WSN 100 is delivered as a uniquely keyed transmitter and receiver pair There can be an unlimited number of keyed pairs in the same area one pair will not interfere with operation of another Alternatively the WSN 100 can be special ordered for a single transmitter unit keyed to multiple receiver units The transmitter can be powered
5. by three standard D type batteries or by an external power supply The optically isolated inputs are activated by any dry contact such as a float switch that require no power external power A red LED on the receiver shows that the power is on Two yellow LEDs display the state of the output relays If the receiver loses contact with the transmitter a red FAULT LED turns on and the fault relay s contacts close The fault relay also closes if the receiver loses power The system requires no configuration and can be installed in minutes Units can be mounted indoors or outdoors with screws or ordered with a powerful magnet for easy slap on installation to a steel tank or frame This manual describes the installation and operation of the WSN 100 Wireless Relay Set Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 2 WSN 100 Wireless Relay Set User s Manual Site Considerations Before permanently installing the WSN 100 the equipment should be tested for operation in the desired environment The WSN 100 may not be the appropriate solution for all installations Landscape and terrain obstructions may affect the radio s performance The WSN 100 range is primarily dependent on the radio wave propagation characteristics of the site but may be improved with alternative antenna selection For help in determining that your site is appropriate call 925 683 6258 for Technical Support
6. damage the unit 1 3 6 11 5VDC Install three standard D type alkaline batteries into the battery holder Close the Velcro retaining straps Do not allow the batteries to hang loose by the battery leads Batteries should be replaced every six months Use quality batteries we recommend Energizer or Duracel batteries If battery voltage drops too low the transmitter will not work and will activate a fault on the receiver Do not leave dead batteries in an unused device as they may leak and damage the equipment Do not store with batteries installed Reconnect the battery leads WARNING When re connecting battery be sure to connect the red wire to and the black wire to Incorrect power connection will cause a failure and may damage the unit If you are using an external power supply be sure the voltage is between 4VDC 9VDC with a supply current of at least 300 mA Be sure to connect the positive and negative wires to the correct terminals to avoid damage to the unit Replace the front cover Do not force the cover in place If the battery back is correctly aligned perpendicular to the antenna the lid will press snugly against the enclosure Do not over tighten the front cover s retention screws Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 4 WSN 100 Wireless Relay Set User s Manual WSN 100R Receiver CAUTION The connection terminals for the WSN 100R a
7. eceiver Receiver is available in NEMA 4X without visible LED indicators Enclosure Size 5 12 x 5 12 x 2 95 In 925 683 6258 Page 8 Aruna Advanced Automation LLC www ArunaAutomation com Rev 6 0 Radio Specifications WSN 100 Wireless Relay Set User s Manual Standard Radio Radio Type WPAN 802 15 4 Operating Frequency ISM 2 4 GHz Range up to 300 feet urban industrial up to 1000 feet residential up to 1 mile RF unobstructed line of site with 2 1 dBi Dipole Antenna Interference Immunity DSSS Direct Sequence Spread Spectrum Transmit Power 60 mW 18 dBm Receiver Sensitivity 100 dBm Antenna Type 2 4 GHz 3 dBi Rubber Duck Antenna RP SMA jack for direct mount or remote antenna options Network Security 128 bit AES Encryption Transmit Current 215 mA Receive Current 55mA Sleep Mode lt 10uA Regulatory Approvals FCC 15 247 USA OUR XBEEPRO IC RSS 210 Canada 4214A XBEEPRO 925 683 6258 Page 9 Aruna Advanced Automation LLC www ArunaAutomation com Rev 6 0 WSN 100 Wireless Relay Set User s Manual Warranty Terms and Conditions LIMITED WARRANTY Aruna Advanced Automation LLC hereafter Aruna warrants that from the date of shipment by Aruna to Customer and continuing for a period of one 1 year the Equipment will be free from defects in manufacturing and workmans
8. ergized when the system is functioning properly no fault and de energizes when there is no communication from the transmitter FAULT LED ON or when the receiver has a power loss When using the FAULT relay to signal a fault it is recommended you connect to the com terminal between the F terminals and connect to the F NC terminal Make the desired connections to the output terminals Be sure your connections are snug the wire is tight but do not over tighten Power has a separate terminal strip The power supply should have a voltage between 5VDC 24VDC with a supply current of at least 300 mA Be sure to connect the positive and negative wires to the correct terminals to avoid damage to the unit WARNING ncorrect power connection will cause a failure and may damage the equipment Replace the front cover Align the cover so that the LEDs are visible through the display window Do not over tighten the front cover s retention screws Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 5 WSN 100 Wireless Relay Set User s Manual Typical Wiring Schematic Figure 1 shows a typical two float TANCE BUMP arrangement The low float is acting as a ic FILL PUMP low water alarm FLOAT SWITCH The WSN 100 will support any control configuration Floats should be connected as they would be for a standard wired control LOW WATER WARNING LIGHT Figure 2 sh
9. hip under normal use This limited warranty extends only to the original user of the Equipment Customer s sole and exclusive remedy and the entire liability of Aruna and its suppliers under this limited warranty will be at Aruna s or its service center s option shipment of a replacement or on site repair under the applicable service contract offering chosen by Customer or a refund of the purchase price Aruna replacement parts used in Equipment repair may be new or equivalent to new Aruna s obligations hereunder are conditioned upon the returned of affected Products if applicable in accordance with Aruna s then current Return Equipment Authorization RMA procedures RESTRICTIONS This warranty does not apply if the Equipment a has been altered except by Aruna b has not been installed operated repaired or maintained in accordance with instructions supplied by Aruna or c has been subjected to abnormal physical or electrical stress misuse negligence or accident DISCLAIMERS Aruna intends for the Equipment to be reliable The Documentation may however contain technical inaccuracies typographical errors or other mistakes Aruna may make corrections or other changes to the Documentation at any time Aruna and its suppliers reserve the right to make corrections modifications enhancements improvements and other changes to its products programs and services at any time or to discontinue any products programs or services wit
10. hout notice You acknowledge and agree that the application notes reference designs user guides and errata included herein are provided as an example only and that you will exercise your own independent analysis and judgment Aruna assumes no liability for your product designs or any applications assistance provided by Aruna LIMITATION OF LIABILITY In no event shall Aruna or its suppliers be liable for any indirect special incidental or consequential damages or any damages whatsoever including but not limited to damages resulting from loss of use data profits whether in an action of contract negligence or other tortious action resulting from or arising out of the use or performance of the Equipment regardless of whether Aruna or an authorized Aruna representative has been advised of the possibility of such damages Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 10 WSN 100 Wireless Relay Set User s Manual Regulatory Approvals FCC 15 247 USA OUR XBEEPRO IC RSS 210 Canada 4214 A XBEEPRO This equipment complies with Part 15 of the FCC Rules Operation is subject to the following two conditions i this device may not cause harmful interference and ii this device must accept any interference received including interference that may cause undesired operation WARNING To satisfy FCC RF exposure requirements for mobile transmitting devices a separate distance of 20cm or more shou
11. ld be maintained between the antenna of this device and persons during device operation To ensure compliance operations at closer than this distance is not recommended The antenna used for this transmitter must not be co located in conjunction with any other antenna or transmitter This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Re orient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect equipment and receiver to outlets on different circuits or consult the dealer or an experienced radio TV technician for help Technical Support For technical support contact Aruna Advanced Automation LLC 2360 Scout Road Oakland CA 94611 Aruna ArunaAutomation com 925 683 6258
12. n the electronic circuit board Incorrect connections will cause the unit to fail and may damage the unit If you are not familiar with basic hand tools and making electrical terminal connections you should have a qualified professional perform the installation Loosen the front cover s four retention screws The front cover is also the battery holder Do not allow the cover battery holder to hang by the battery wires and be careful not to pull too hard or you may pull the battery leads out of the power terminal It may help mounting to disconnect the battery leads so you can fully remove the front cover WARNING When re connecting battery be sure to connect the red wire to and the black wire to lt Incorrect power connection will cause a failure and may damage the unit Under the retention screws there are fastening holes Use four 8 screws or bolts to fasten the unit to your mounting location 8 x when mounting to wood It is recommended that the transmitter be mounted at least 5 above the ground with the antenna pointing straight up On the circuit board there are terminals labeled A A and B B for inputs A and B respectively Connect your float switches or other types of dry contacts to these terminals Be sure your connections are snug the wire is tight but do not over tighten WARNING The WSN 100T is designed for use with 0 volt dry contact inputs Applying a voltage signal to the inputs could
13. ows typical float connections FLOAT SWITCH to the WSN 100 T for a possible pump up control scenario In this example Figure 1 Typical Tank Fill Configuration both floats are wired as normally closed closed down The internal battery pack is being used to power the unit Alternatively an external power supply could be used 4VDC 9VDC 300mA WSN TRANSMITTER When the high float drops the switch closes to send a run signal to the fill pump run relay When the float is up the switch is open the run relay is off AAA ACC KK Malalele When the low float drops the switch closes to send a low water alarm to an alarm indicator and or the pressure system controller Figure 3 shows a possible arrangement for controller connections to the WSN 100 R The example demonstrates one D BATTERY PACK way to interface with the receiver s outputs NORMALLY CLOSED FILL FLOAT When the fill float drops the receiver s output A is energized closing the A NO normally open contact and energizing the pump NORMALLY CLOSED LOW FLOAT Figure 2 Typical Float Connections control When the fill float flips back up the A NO contact opens turning off the pump If the low float drops the receiver s output B is energized closing the B NO contact activating the low alarm If the transmitter fails or the receiver loses power the fault relay will de energize closing the F NC normally closed contac
14. re on the electronic circuit board Incorrect connections will cause the unit to fail and may damage the unit If you are not familiar with basic hand tools and making electrical terminal connections you should have a qualified professional perform the installation Loosen the front cover s four retention screws Under the retention screws there are fastening holes Use four 8 screws or bolts to fasten the unit to your mounting location 8 x when mounting to wood It is recommended that the receiver be mounted at least 5 above the ground with the antenna pointing straight up There are two terminal strips on the WSN 100R circuit board one for power and the other for the three relay outputs There are three terminals for each of the three output relays normally closed NC common com and normally open NO The outputs are labeled A B and F Outputs A and B are controlled by the WSN 100T inputs A and B NOTE The terminal labeled com is the common connection for the NC and NO output it is positioned between The output relays can switch up to 2A at 250VAC 220VDC but should not be used to directly power A 5 OR EB Yee BE a motor N za 2 NO NO O NO NC 2 2 G gt amp 9 amp gt SUS For the most common application when input A is closed close output A connect to the com terminal between the A terminals and connect to the A NO terminal Output F is the FAULT relay The FAULT relay is en
15. t to signal a fault alarm The WSN 100 R fault relay is energized during POWER THROUGH THE WSN RECEIVER RELAYS MUST NOT EXCEED 2AMPS AT 250VAC 3 x Figure 3 WSN 100 R Typical Connections normal operation It de energizes if there is a loss of signal from the WSN 100 T or a loss of power to the WSN 100 R circuit board Typical connection for the fault alarm is to the F NC terminal Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 6 WSN 100 Wireless Relay Set User s Manual Using Normally Closed Contacts The A NC and B NC contacts can be used as indicator signals It is usually not advisable to use the NC contacts directly for pump or motor control If there is a loss of power to the WSN 100 R or if radio connection fails all of the relays de energize closing the NC contacts this could cause an undesired run signal It is generally preferable wire the inputs for the desired control logic and to use the NO contact outputs Figure 4 provides a possible configuration for safely using a NC contact for pump or motor control This configuration uses the F NO contact as a Safety interlock When the WSN is operating properly the fault relay is energized and the F NO contact is closed If the system fails the fault relay de energizes and the F NO contact opens Wiring the control signal through the F NO contact as shown will prevent an inadvertent CONTROL run signal being generated by
16. the A NC power THROUGH THE WSN RECEIVER RELAYS MUST NOT EXCEED 2AMPS AT 250VAC contact when there is loss of power or radio Figure 4 Safely Using NC Contact for Pump Control signal Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 7 WSN 100 Wireless Relay Set User s Manual WSN 100 Specifications WSN 100T Transmitter Supply Power 4VDC 9VDC 300 mA Operational Current 215 mA transmitting 45 260 uA sleep mode Battery Type 3 standard D type cells nominally 4 5 VDC Battery Life Recommended change every 6 months up to 12 months possible Inputs 2ea Dry Contacts no applied voltage on inputs optically isolated non polarized Connections Terminal Screws WSN 100R Receiver Supply Power 5VDC 24VDC 300 mA Operational Current 70 260 mA Indicators Power Red LED Fault Red LED Outputs 2 Yellow LEDs Connections Terminal Screws Output Relays 2 Control Relays N O 1 Alarm Relay closes on loss of power or loss of transmitter signal 2A max current 250VAC 220VDC max voltage Contact Resistance 100 mQ max Enclosure Industrial Temperature Rating 40 C to 85 C 40 F to 185 F Humidity 5 to 95 Relative Humidity non condensing Enclosure Material Polycarbonate Enclosure Type NEMA 4X IP66 Transmitter NEMA 12K IP66 R
17. time due to growing vegetation building construction etc If obstacles exist between two points the antennas can be raised on one end or on both ends to clear the Fresnel Zone of obstructions How far above the ground and other obstacles the antennas need to be is determined by the diameter of the Fresnel Zone The diameter of the Fresnel Zone depends upon the frequency and distances between the two radios The WSN 100 uses 2 4 GHz radios At 1000 the Fresnel Zone is 11 feet at 1 mile the zone is 21 feet Mounting Considerations When mounting an antenna care should be taken to make sure it is as far away from metal objects as possible If nearby metal gets too close to an antenna it has the potential to interfere with the way the antenna radiates and may cause some undesirable results In some cases a cable must be used to connect an antenna to a transmitter or receiver All RF cables add some loss to the system For any given cable the longer the cable the more signal will be lost over that cable Because of this the length of the cable should be kept as short as possible 2012 Digi Aruna Advanced Automation LLC www ArunaAutomation com 925 683 6258 Rev 6 0 Page 3 WSN 100 Wireless Relay Set User s Manual Standard Installation Check the transmitter and receiver installation locations for radio connectivity before permanent installation WSN 100T Transmitter CAUTION The connection terminals for the WSN 100T are o
Download Pdf Manuals
Related Search