User manual ALFA 1-IRS and ALFANET 1-IRS
Contents
1. May be provided in the controller with a jumper For signal conditioning Place Pullup down resistors Shield only at x Shield onlyat Only at one point in the Z S a a One side of 2onesideof Network May be providedin gleje the cable 5 the cable the controller with jumpers D 4 J to Earth to Earth Or use ALFA 1 TERMINATOR A Ne ee a KDO PEL gt La KLCI LCL OOTO bf KDKDCPIAT AIK pE Optional brown gt De EO Iv ab le Ds oO Sct a ao A S Lore IRS Sensor D Coov re Pove cop oe X Seve 2 gt o Er N r L TL DOD ab os av HPmatan S f WV v Te ga w SLD oo Onomw v e E G TD O m m a ov Network connections Pair 1 Connect A HI to A HI Connect B LO to B LO Pair 2 Connect GND 0V to GND 0V Shield Connect Shield to clean Earth Endpoint Network cable Connection Network cable Endpoint only on one side of cable Network 2twised pair shielded point 2 twised pair shielded Network min 0 5mm Network min 0 5mm Pair 1 A B Pair 2 Gnd Max Cable lenath 1KM Pair 1 A B Pair 2 Gnd Note 1 AVOID LONG STUB CABLES No longer than 0 5M otherwise use a Repeater Adress VDH Products BV Tel Produktieweg 1 Fax 9301 ZS Roden Email Netherlands Internet 31 0 50 30 28 900 31 0 50 30 28 980 info vdhproducts nl www vdhproducts nl2. User manual Pre ALFA 1 IRS and ee cde ALFANET 1 IRS if nm ot Nes z spray delay recite Min Rail mounting airflow detector VDH doc 071727 Version v1 1 Date 11 12 2007 Software 060721 ALFA 1 IRS File Do071727 wpd Range 0 99 min Installation On the topside of the ALFA NET 1 IRS is shown how the input power supply and relay have to be connected Function After connecting the ALFA NET 1 IRS to the power supply the led recirc will light up recirculation position unless the airflow detector detects an airflow As soon as an airflow is detected the relay will be energized PO2 0 and the led spray in the display spray position will light up With parameter P02 it is possible to reverse the relay function If the airflow stops the delay timer will start the led delay lights up and the remaining delay time is shown on the display After the delay time has passed the relay will be de energized and the led recirc lights up The controller is ready for the next spray cycle Manual mode The ALFA NET 1 IRS has also a manual mode By pushing the UP and DOWN keys simultaneous UP key first and than the DOWN key the spray detector comes into the manual mode The display shows hnd and the relay is energized By pushing UP DOWN again the manual mode will switch off Controlling The ALFA NET 1 IRS airflow detector can be controlled by three push buttons on the front The
3. ar Production week Serial number x1000 Serial number units Error messages In the display of the ALFA 1 IRS the following error messages can appear EE Settings are lost Solution Reprogram the settings Techniscal deatils ALFA 1 IRS Airflow detector Mounting Dimensions Panel hole Common Supply Relay Control Front Range delay time sensor Communication Option DIN Rail mounting 90 x 53 x 58mm hwd 46 x 53mm wb 230 Vac 1 2VA 50 60Hz Or else see product sticker SPDT 250V 16A C NO 8A C NC cos phi 1 through push buttons on the front Polycarbonate 0 99 minuts or seconds IRS sensor approach switch RS485 Network A B Gnd 2x twisted pair shielded min 0 5mm2 Provided with memory protection during power failure Connection with screw terminals on top and bottom side Special version on request available Dimensions see sticker NCV L OV Go ame J if wet spray delay Connections Relay Spraying SPDT OOOO recire Min 90 62 OO komm 00 oy TT PTL PELL oy x 2 twisted pairs shielded NA Shield only at one point to Earth RS485 Network RS 485 NETWORK CONNECTIONS 2 twisted pair shielded cable One of the Controllers can be the PC Interface Repeater is also a contr Place Terminator resistor of 250 Ohm only at both ss ends of the RS485 cable between line A and line B
4. se buttons are SET view change the set point UP raise the value DOWN lower the value Viewing the adjusted delay time By pushing the SET key the adjusted delay time is shown Also the led delay starts flashing A few seconds after releasing the SET key the delay time disappears and the position from the controller is visible again Changing the delay time Push the SET key and the delay time appears in the display Release the SET key Now push the SET key again and together with the UP or DOWN keys the delay time can be changed A few seconds after releasing the keys position from the controller is visible again Setting internal parameters By pushing the DOWN key more than 10 seconds you enter the internal programming menu In the left display the upper and lower segment are blinking Over the UP and DOWN keys the required parameter can be selected see table for the parameters If the required parameter is selected the value can be read out by pushing the SET key Pushing the UP or DOWN keys together with the SET key allows you to change the value of this parameter If after 20 seconds no key is pushed the ALFA NET 1 IRS changes to it s normal operation mode Parameter tabel Para Description parameter Range Standard meter value Selection unit of time Min Sec 0 Minuts 1 Seconds Working air flow detector 0 Normal 1 Reverse Network number only at ALFANET Software version Production ye
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