Total solder points: 202 Difficulty level: beginner 1 2 3 4 5 advanced POWER SAVER / TIMER K8075 me, it preset ti a r e ft a t n safety equipme nd it increases r u o y ff Turns o save money a u helps yo ILLUSTRATED ASSEMBLY MANUAL H8075IP-1
Assembly hints The power saver turns off your equipment after a preset time. It helps you save money and it increases safety.
Assembly hints 1. Assembly (Skipping this can lead to troubles ! ) Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully. 1.1 Make sure you have the right tools: • A good quality soldering iron (25-40W) with a small tip. • Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and will protect the tip, and enables you to make good connections.
Assembly hints 1.3 Soldering Hints : 1- Mount the component against the PCB surface and carefully solder the leads 2- Make sure the solder joints are cone-shaped and shiny 3- Trim excess leads as close as possible to the solder joint REMOVE THEM FROM THE TAPE ONE AT A TIME ! AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE ! You will find the color code for the resistances on our website: http://www.velleman.be/common/service.
Construction 1. Diodes. Watch the polarity ! D1 : 1N4148 2. Zenerdiodes. Watch the polarity ! R... 6 1N4007 1N4007 1N4007 1N4007 CATHODE D... R4 R5 R6 R7 R8 R9 R10 R11 R12 : : : : : : : : : 47K 1K 1K 10K 10K 10K 2K2 6K8 3K9 7. Capacitors. C1 : 100nF (104) C2 : 100nF (104) ZD... 3. Diodes. Watch the polarity ! : : : : : 330K (3 - 3 - 4 - B - 9) : 330K (3 - 3 - 4 - B - 9) : 220 (2 - 2 - 1 - B - 9) 5. Resistors ZD1 : 5V1/0.5W ZD2 : 24V/1.3W D2 D3 D4 D5 R1 R2 R3 6. IC socket.
Construction 8. Transistors 11. Shunt 13. VDR T1 : BC547B T2 : BC547B 9. Board to wire connector Choose timer : SK6 : 4p Mounted : 2h / 8h Not mounted : 1h / 4h VDR1 : VDR300 14. Electrolytic capacitors Watch the polarity! 12. PCB terminals 10. Pin header JP1 : 2p C...
Construction 15. Capacitor 17. IC. Watch the position of the notch! IC1 : VK8075 (programmed PIC10F200-I/PG) Choose operation voltage : 230V : C5 : 0,47µF / 630V 115V : C5 : 0,68µF / 400V 16. Relays CHECK THOROUGHLY ALL THE COMPONENTS FOR MISS MOUNTING, INCLUDING SOLDERING ERRORS. PUT AN EXTRA THICK LAYER OF SOLDER ON THESE PCB TRACKS TO IMPROVE THEIR CURRENT HANDLING CAPACITIES. RY1 : VR10V241C (24DC - 10A - 1contact) 8 Fig. 1.
Wiring the push button 18. Wiring the push button Cut off a piece of shrinkable tube with a lenght equal to 2,5cm. Fig. 2.0 Slide the shrinkable tube over the wires of the female 'board to wire'-connector (fig. 2.0) Solder the 4-pole female 'board to wire' connector to the push button using the figure below to check the accuracy of the connections (see figure 3.
Wiring the push button In case you want to use a different push button, make sure it is rated for the AC-voltage. If you do not use the included push button, you can mount a 3mm LED on the PCB. COLOR= 2...5 LD...
Final connection & use 19. Final connection & use CAUTION: All PARTS OF THE CIRCUIT CARRY DANGEROUS VOLTAGES (MAINS) ! OBSERVE ALL SAFETY REQUIREMENTS THAT MIGHT APPLY ! Push button AC POWER MOUNT THIS KIT PREFERABLY IN AN ISOLATED ENCLOSURE Connect your application (ex. lamp) to the unit (Lout & N) Connect the power supply to the power connections of the PCB (L &N), see fig. 4.0.
Use Never modify the JP1 mode setting while the unit is still live! Jumper selection: First, choose the desired timer function, i.e. a long-term or a short-term timer. (1) Long-term timer. Mount the jumper (JP1) At power-on, the pushbutton LED (or LD1) will flash slowly twice, hereby indicating that long-term timers have been selected (2h or 8h turn-off timer). (2) Short-term timer.
Use : Push button briefly: turn-on relay and toggle between a short or a long turn-off delay. Short turn-off delay (1h or 4h, depending on setting of jumper JP1) Pushbutton LED (or LD1) blinks fast. Long turn-off delay (2h or 8h, depending on setting of jumper JP2) Pushbutton LED (or LD1) blinks slowly. Hold button for 2-3s: turn-on relay and activate 24h turn-off timer.
Diagram 20.
PCB 21.
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