User manual ALFA 804-ADS and ALFANET 804-ADS
Contents
1. Thru push buttons on front Front Polycarbonate IP65 Dimensions 35 x 77 x 71 5mm hwd Panel cutout 28 x 70mm hw Provided with memory protection during power failure Connection with screw terminals on the backside Equipped with self test function Special versions are available upon request Dimensions Connections ALFA NET REMARK To terminate RS485 Network Connect a 250 Ohm resistor between 80X series Line A and Line B at both cable ends 60 69 5 pa v gt lt O oj gt P e ee ee E cw gt oj Of o O SW1 vee Start al al o hes Direct aoe SW2 Start noo Z Delay SUPPLY RELAY Optional RS485 EXTERNAL Vac OUTPUT NETWORK START TIMER Vdc SPDT 2 twisted pair Contact inputs shielded Start ADS direct Start ADS delay yADS TIME pa ADS TIME o a En l T1 l TO l T2 l RS 485 NETWORK CONNECTIONS 3 wired shielded One of the Controllers can be the PC Interface A B BNO e ee gt oO o1 F A c P o plo Network connections gt fb a A HI connected to A HI T Flare B LO connected to B LO m 2 GND OV connected to GND OV Shield to Earth only on one side of cable Endpoint Network cable Connection Network cable Endpoint Place Terminator Resistor Network 3 wire shielded point 3 wire shielded Network of 250 Ohm at both ends of min 0 75mm Network min 0 75mm the RS485 cab2. key is pressed for the second time than the delayed drying time is stopped directly the display shows for 5 seconds 000 and the upper left LED deactivates The timer is stopped completely and after the 5 seconds the display shows the set direct drying time T1 again The time is now ready for the next start Starting with UP key With parameter P06 can be set the UP button can be used during normal operation for a direct or delayed start Setting internal parameters By pushing the DOWN key for more then 10 seconds you enter the internal programming menu In the left display the upper and lower segments are blinking With the UP and DOWN keys the required parameter can be selected see parameter table If the required parameter is selected the value can by read out by pushing the SET key By pushing simultaneously the SET key and the UP or DOWN key the parameter value can be changed If no key is pushed for 20 seconds the ALFA NET 804 ADS will return to it s normal operation and the changes are saved Internal parameters Time unit 0 minutes 1 seconds External contact input mode Not active Only start at closed input pulse contact Start and hold at closed input pulse contact Start and stop at closed input pulse contact Relay deactivates during hold T1 or T2 Relay stays activated during hold T1 or T2 Display shows set drying time after drying time Display extinguishes after drying t
3. User manual ALFA 804 ADS and ALFANET 804 ADS Aqua Dry System Timer unit VDH doc 080178 Version v1 1 Date 31 01 2013 Software 060075 V3 01 File Do080178 wpd Range 0 999 Operation The ALFA NET 804 ADS is drying timer unit for water containing coatings the water in these coatings must be evaporated by the ADS unit Aqua Dry System thru a extra drying in between two spraying sessions The ALFA NET 804 ADS can evaporate at two different ways The first method is drying direct with a drying time T1 0 60 minutes and The second method is to wait first a delay time TO 0 30 minutes and than dry with a drying time T2 0 60 minutes Installation On the topside of the ALFA NET 804 ADS can be read how to connect this unit such as power supply relay output contact input and network After power up the ALFA NET 804 ADS and the self test is finished the unit displays the set drying time T1 in it s display Control The ALFA NET 804 ADS timer unit can by controlled by three push bottons on the front These keys are SET lt view change setting UP A starts the timer increase setting DOWN V stops the timer decrease setting Viewing the time settings of the timer First press the SET key and than press the UP and or DOWN keys to show the next timer settings on the display To indicate which timer setting is shown a LED is blinking as follows TO The delay time is shown in the display as the uppe
4. cate that the delay time TO is running meanwhile the display shows the countdown of the delay time After this delay time the drying time after delay T2 is started the LED ON and the relay output are activated during the drying time T2 The drying time starts counting down to zero after ending this time the LED ON and the relay output deactivate and the display shows the set direct drying time T1 again The timer is now ready for the next start Setting drying time on hold P05 0 During drying time it is possible to set the timer on hold by pushing the DOWN key Depending on the parameter setting of PO3 the relay output deactivates PO3 0 or stays activated PO3 1 during hold To indicate the hold situation the LED ON flashes and the remaining drying time is frozen To end this hold situation the UP key must be pressed But if the DOWN key is pressed for the second time than the drying time is stopped directly the display shows for 5 seconds 000 and the ON LED deactivates The timer is stopped completely and after the 5 seconds the display shows the set direct drying time T1 again The time is now ready for the next start Setting delay time on hold PO5 0 During delay time it is also possible to set the timer on hold by pushing the DOWN key To indicate the hold situation the upper left LED flashes and the remaining delay time is frozen To end this hold situation the UP key must be pressed But if the DOWN
5. ime Display stays at zero after drying time n key mode Pressing DOWN key while drying time is running switches to hold Press DOWN key once again stops timer Pressing DOWN key while drying time is running stops the timer direct to zero Direct start with UP key possible Start with UP key not possible Only external start possible Delay start with UP key possible Network number Software version Production year Production week Serial number x 1000 Seriel number units Remark In case that the timer unit is set on minutes P01 0 the display shows the last minute of the current rest time in seconds To indicate this the lower segment of the first digit is lit and the other digits show the time in seconds Error messages In the display of the ALFA NET 804 ADS the following error message can appear EE Settings are lost Solution Reprogram the settings Technical details Type ALFA 804 ADS Aqua Dry System Timer unit or ALFANET 804 ADS Timer unit with network Range T1 Direct drying time 0 60 minutes or seconds TO Delay time 0 30 minutes or seconds T2 Drying time after delay 0 60 minutes or seconds Supply 230 Vac 1 2VA 50 60Hz or else see product sticker Relay SPDT 250V 16A C NO 8A C NC cos phi 1 Contact inputs Two start keys in a serial resistor circuit on contact input see connections Communication RS 485 network only at Alfanet 2xTwisted pair shielded cable A B Gnd Control
6. le between Max Cable length 1KM line A and line B Note 1 NETWORK CABLE MAY NOT HAVE ANY SIDE BRANCHES for this use Repeaters Adress VDH Products BV Tel 31 0 50 30 28 900 Produktieweg 1 Fax 31 0 50 30 28 980 9301 ZR Roden Email info vdhproducts nl The Netherlands Internet www vdhproducts nl
7. r left LED is blinking T1 The direct drying time is shown in the display as the LED set is blinking T2 The drying time after delay is shown in the display as both LED s are blinking A few seconds after releasing the keys the timer unit returns to it s normal operation Changing the time settings of the timer First press the SET key and choose one of the time settings as above with the UP and or DOWN keys To change the chosen time setting while displayed first press the SET key again and hold it while pressing the UP and or DOWN keys to change it s setting A few seconds after releasing the keys the timer unit returns to it s normal operation with the new setting Starting stopping and waiting of the timer Normally the ALFA NET 804 ADS is started by the external start keys which are connected in a resistor circuit to the contact input of the timer see the connection diagram Working in direct start mode lf the timer is started by pushing the external direct start key the LED ON and the relay output are activated during the direct drying time T1 The direct drying time starts counting down to zero after ending this time the LED ON and the relay output deactivate and the display shows the set direct drying time T1 again The timer is now ready for the next start Working in delay start mode If the timer is started by pushing the external delay start key first the upper left LED is activated to indi
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