K8028 ILLUSTRATED ASSEMBLY MANUAL H8028IP-2 Total solder points: 145 Difficulty level: beginner 1 2 3 4 5 advanced NOISE SUPPRESSEDACC
10 After doing the self-test the LED’s flash for 5 seconds according to the function currently selected. The function can be changed during this ti
11 No. ( = off = on ) LD4-LD3-LD2-LD1 Function 1 On/off switch. 2 Pushbutton dimmer with memory. 3 Slow ON dimmer (switch
12 13 Speed control for synchronous motors. 14 “Learning mode”, to learn delay times. 15 Resets the K8028, according to the s
13 The various functions are discussed in detail here. For each function it states how the module is controlled: either by one or more parallel switch
14 Function 3: Slow “ON” dimmer: Enables the lighting point to be slowly dimmed “ON”, from 0 to max. As long as the “INPUT” contact is closed, the l
15 Function 6: Repeat slow “ON” and “OFF” dimmer: Enables the lighting point to repeatedly come on and go off slowly. As long as the “INPUT” contact
16 Function 8: “Soft” on/off switch with dimmer and preferred light intensity memory. With repeated short presses the light will “gently” come on a
17 Function 11: Switch, slow on/off and dimmer combination. This is one of the most complete functions that the module contains. Starting from the
18 Function 13: Speed control for synchronous motors. Only connect synchronous motors when using this function, other loads could damage the mo
19 Function 14: Learning mode The learning mode enables the time periods DELAY1 and DELAY2 to be set. When this function has been selected, LD4 wil
2 Specifications: Microprocessor technology. 13 operating modes including toggle switch, dimmer, staircase timer, slow-on / slow-off dimmer, t
20 Function 15: Restore factory settings. If this function is selected, LD1 & LD4 will flash alternately. Keep SW1 (pushbutton on the PCB) pres
21 Fault code tabel Fault code: (number of LED flashes.) Fault: Possible cause: 5 Fault in the voltage zero-cross circuit - Fault on the lighting n
22 23. PCB layout. PCB H8028IP'2-rev3.pubpage 22Monday, August 27, 2012 10:04
23 24. Diagram Diagram H8028IP'2-rev3.pubpage 23Monday, August 27, 2012 10:04
5 410329 291273Learn how to connect your computer with the outside world, master the USB communication with tutorial examples. Play with LED indicato
3 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 su
DO NOT BLINDLY FOLLOW THE ORDER OF THE COMPONENTS ONTO THE TAPE. ALWAYS CHECK THEIR VALUE ON THE PARTS LIST! REMOVE THEM FROM THE TAPE ONE AT A TIME !
5 R1 : 220K (2-2-4-B-9) R3 : 470K (4-7-4-B-9) R4 : 10K (1-0-3-B) R5 : 47 (4-7-0-B-9) R6 : 10K (1-0-3-B)
6 T1 : BC547B T2 : BC547B T3 : BC547B 6. Transistors. VR1 : UA78L05 7. Voltage Regulator. VR... C1 : 680nF/600V 8. Capacito
7 SK1 : 2 x 2p SK2 : 2 x 2p SK3 : 2p 13. Terminal block connectors. Construction SW1: S500N 14. Pushbutton.
8 Connection diagram Connection diagram ENABLE LD5 MAX LD1 UP. LD2 DOWN LD3 MIN LD4 K8028 F1 SK2 SK1 LOAD AC POWER INPUT SK3 INCANDECENT LIGHTB
9 Note: this kit operates on mains voltage, which is hazardous. Ensure that it is not connected to mains when working on the PCB or when connectin
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