Velleman-Kit K8000 User manual

Total solder points: 839
Difficulty level: beginner 1 234 5 ⌧advanced
Computer interface board
ILLUSTRATED ASSEMBLY MANUAL H8000IP-2
K8000
K8000
TheK8000kitistheidealintroductionifyouwant
learnhowtodrivedeviceswithaprogramwritten
onaPCinTurboPascal,C++,…
OpticallyisolatedfromthePC.

2
Features & specifications
Features :
 Optically isolated from computer.
 16 optically isolated digital connections.
 9 analogue outputs, of which one is high precision and 4 analogue inputs.
 A simple way of controlling using Turbo Pascal, Turbo C, Qbasic, Visual
Basic.
 Printer bypass connector on board.
 Simple connection with printer port
Specifications
Digital outputs:
• Optocoupler, open collector output: 50mA - max. 30VDC.
Digital inputs:
• Optocoupler input: 5V/5mA, max. 20V/40mA.
Analogue outputs :
• 8 outputs DAC1 to DAC8, resolution: 64 steps.
• Minimum output voltage: 0.1V at 2mA.
• Maximum output voltage: 11.5V adjustable at 2mA.
• Resolution per step from 0.1 to 11.5V: 160mV +/- 90mV.
• 1 precision output DA1, resolution: 256 steps.
• Minimum output voltage: 0V.
• Maximum output voltage: 4.5V adjustable at 0.5mA.
• Resolution per step from 0 to 4.5V: 17.5mV.
Analogue inputs :
• 4 analogue inputs AD1 to AD4, resolution: 256 steps.
• minimum input voltage: 0V.
• maximum input voltage: 5V.
• input impedance: 50Mohm.
• resolution: 19,5mV.
• Communication protocol: I²Cbus.
• LED indication for each I/O.
• 25 pin D series connector for computer.
• 25 pin D series connector for printer.
• Supply voltage: 230Vac.
• PCB dimensions: 237 x 133mm (9.3" x 5.2").

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
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. When solder
rolls off the tip, it needs cleaning.
• Thin raisin-core solder. Do not use any flux or grease.
• A diagonal cutter to trim excess wires. To avoid injury when cutting
excess leads, hold the lead so they cannot fly towards the eyes.
• Needle nose pliers, for bending leads, or to hold compo-
nents in place.
• Small blade and Phillips screwdrivers. A basic range
is fine.
For some projects, a basic multi-meter is required, or might
be handy
1.2 Assembly Hints :
⇒ Make sure the skill level matches your experience, to avoid disappointments.
⇒ Follow the instructions carefully. Read and understand the entire step before
you perform each operation.
⇒ Perform the assembly in the correct order as stated in this manual
⇒ Position all parts on the PCB (Printed Circuit Board) as shown on the draw-
ings.
⇒ Values on the circuit diagram are subject to changes.
⇒ Values in this assembly guide are correct*
0.000

4
⇒ Use the check-boxes to mark your progress.
⇒ Please read the included information on safety and customer service
* Typographical inaccuracies excluded. Always look for possible last minute
manual updates, indicated as ‘NOTE’ on a separate leaflet.
1.3 Soldering Hints :
1- Mount the component against the PCB sur-
face 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 !
Assembly hints
AXIAL COMPONENTS ARE TAPED IN
THE CORRECT MOUNTING SEQUENCE !

5
Construction
Mount the components in the order indicated in the separate part list. The parts
marked with (!) require special attention in the assembly instructions.
IMPORTANT : Read the disk file READ.ME before commencing assembly. This
file will report any updated changes.
ATTENTION :If the card is to built as an expansion card (Slave) to one already
connected tot the computer (Master), the components marked with Sshould not
be mounted.
1. Diodes (check the polarity)
 R1 : 100 (1-0-1-B)
 R2 : 100 (1-0-1-B)
 R3 : 100 (1-0-1-B)
 R4 : 100 (1-0-1-B)
 R5 : 100 (1-0-1-B)
 R6 : 100 (1-0-1-B)
4. 1/4W Resistors.
R...
 J
1. Jump wires.
 D1 : 1N4148
 D2 : 1N4148
 D3 : 1N4148
 D4 : 1N4148
 D5 : 1N4148
 D6 : 1N4148
 D7 : 1N4148
 D8 : 1N4148
 D9 : 1N4148
 D10 : 1N4148
 D11 : 1N4148
 D12 : 1N4148
 D13 : 1N4148
 D14 : 1N4148
 D15 : 1N4148
 D16 : 1N4148
2. Diodes (check the polarity)
CATHODE
D...
 D17 : 1N4007 (S)
 D18 : 1N4007 (S)
 D19 : 1N4007 (S)
 D20 : 1N4007 (S)
 D21 : 1N4007
 D22 : 1N4007
 D23 : 1N4007
 D24 : 1N4007
 ZD1 : 4,7V (4V7) (S)
3. Zener diode (check the polarity)
CATHODE
ZD...

6
 R49 : 10 (1-0-0-B-9) (S)
Construction
 C1 : 100n (104, 0.1, u1)
 C2 : 100n (104, 0.1, u1)
 C3 : 100n (104, 0.1, u1)
 C4 : 100n (104, 0.1, u1)
 C5 : 100n (104, 0.1, u1)
 C6 : 100n (104, 0.1, u1)
 C7 : 100n (104, 0.1, u1)
 C8 : 100n (104, 0.1, u1)
 C9 : 100n (104, 0.1, u1)
7. Capacitors
c...
5. 1/2W Resistors.
R...
 R7 : 100 (1-0-1-B)
 R8 : 100 (1-0-1-B)
 R9 : 100 (1-0-1-B)
 R10 : 100 (1-0-1-B)
 R11 : 100 (1-0-1-B)
 R12 : 100 (1-0-1-B)
 R13 : 100 (1-0-1-B)
 R14 : 100 (1-0-1-B)
 R15 : 100 (1-0-1-B)
 R16 : 100 (1-0-1-B)
 R17 : 100 (1-0-1-B) (S)
 R18 : 100 (1-0-1-B) (S)
 R19 : 47 (4-7-0-B) (S)
 R20 : 150 (1-5-1-B)
 R21 : 220 (2-2-1-B)
 R22 : 220 (2-2-1-B)
 R23 : 220 (2-2-1-B)
 R24 : 220 (2-2-1-B)
 R25 : 220 (2-2-1-B)
 R26 : 220 (2-2-1-B)
 R27 : 220 (2-2-1-B)
 R28 : 220 (2-2-1-B)
 R29 : 220 (2-2-1-B)
 R30 : 220 (2-2-1-B)
 R31 : 220 (2-2-1-B)
 R32 : 220 (2-2-1-B)
 R33 : 220 (2-2-1-B)
 R34 : 220 (2-2-1-B)
 R35 : 220 (2-2-1-B)
 R36 : 220 (2-2-1-B)
 R37 : 1K (1-0-2-B)
 R38 : 1K (1-0-2-B)
 R39 : 4K7 (4-7-2-B) (S)
 R40 : 4K7 (4-7-2-B) (S)
 R41 : 4K7 (4-7-2-B) (S)
 R42 : 4K7 (4-7-2-B) (S)
 R43 : 4K7 (4-7-2-B) (S)
 R44 : 4K7 (4-7-2-B) (S)
 R45 : 4K7 (4-7-2-B) (S)
 R46 : 4K7 (4-7-2-B)

R47 : 4K7 (4-7-2-B)
 R48 : 1k8 (1-8-2-B)
 R66 : 220 (2-2-1-B)
 IC1 ... IC16 : 6P
 IC17 ... IC20 : 16P
 IC21 : 14P (S)
 IC22 ... IC24 : 8P (S)
 Attention : Look carefully on the
direction of the notch of IC24
6. IC sockets

7
Construction
 SW1 : 2P DIP
8. Dip Switch
 RV1, RV2 : 10K
Rv1 = Vmax.
Max DAC output voltage : 0 ...10V
RV2 = Vref.
Max IN/OUT voltage : 0 ...5V
9. Resistor Trimmer
R...
10. LEDs. Check the polarity!
LD1
CATHODE
 LD1 : 5mm
 LD2 : 5mm
 LD3 : 5mm
 LD4 : 5mm
 LD5 : 5mm
 LD6 : 5mm
 LD7 : 5mm
 LD8 : 5mm
 LD9 : 5mm
 LD10 : 5mm
 LD11 : 5mm
 LD12 : 5mm
 LD13 : 5mm
 LD14 : 5mm
 LD15 : 5mm
 LD16 : 5mm
 LD17 : 5mm (S)
 LD18 : 5mm (S)
 LD19 : 5mm (S)
 I/O1 … 16; GND; +5V
11. PCB tab
12. Terminal blocks
 J1 : 2P
 J2 : 2P
 J3 : 2P
 J4 : 2P
 J5 : 2P
 J6 : 2P
 J7 : 2P
 J8 : 2P
 J9 : 2P
 J10 : 2P
 J11 : 2P
 J12 : 2P
 J13 : 2P
 J14 : 2P
 J15 : 2P
 J16 : 2P
 J17 : 2P
 J18 : 2P
 J19 : 2P
 J20 : 2P
 J21 : 2P
 J22 : 2P
 J23 : 2P
 J24 : 2P
 J25 : 2P
 J26 : 2P
 J27 : 2P
 J28 : 2P
 J29 : 2P
 J30 : 2P
 J31 : 3P !
 J31’: 2P
 F1 : 250mA
13. Fuse
F...

8
 C10 : 100µF
 C11 : 100µF
 C12 : 100µF
 C13 : 100µF
 C14 : 100µF
 C15 : 100µF
 C16 : 100µF
 C17 : 100µF
 C18 : 100µF
 C19 : 100µF
 C20 : 470µF (S)
 C21 : 470µF (S)
 C22 : 2200µF
17. Electrolytic capacitors. Check
the polarity !
C...
Construction
 RY1 : OUC-5 (S)
14. Relay
MALE
FEMALE
 J32 : 25P SUB D (!)
 J32 : 25P SUB D (!)
15. 25P sub D connectors
J33
J32
 R50 : 470 (4-7-1-B)
 R51 : 470 (4-7-1-B)
 R52 : 470 (4-7-1-B)
 R53 : 470 (4-7-1-B)
 R54 : 470 (4-7-1-B)
 R55 : 470 (4-7-1-B)
 R56 : 470 (4-7-1-B)
 R57 : 470 (4-7-1-B)
 R58 : 470 (4-7-1-B)
 R59 : 470 (4-7-1-B)
 R60 : 470 (4-7-1-B)
 R61 : 470 (4-7-1-B)
 R62 : 470 (4-7-1-B)
 R63 : 470 (4-7-1-B)
 R64 : 470 (4-7-1-B)
 R65 : 470 (4-7-1-B)
16. 1W Resistors
R...
 VR1 : UA7812!
 VR2 : UA7805!
18. Voltage regulator. The back
side corresponds to the thick line.
VR...
M3 NUT
M3 BOLT
M3 NUT
M3 BOLT
WASHER

9
R...
5mm
 IC17: PCF8574A !
 IC18: PCF8574A !
 IC19: TDA8444 !
 IC20 : PCF8591 !
 IC21 : 74LS125 (S)
 IC22 : 6N136 (S)
 IC23 : 6N136 (S)
 IC24 : 6N136 (S)
20. IC’s. check the position !
Construction
 TRANSFO 1 : 1 X 15V (2X7,5V)
 TRANSFO 2 : 1 X 6V (S)
19. Transformers
TRANSFORMER
220V 12V
 IC1 : 4N33 !
 IC2 : 4N33 !
 IC3 : 4N33 !
 IC4 : 4N33 !
 IC5 : 4N33 !
 IC6 : 4N33 !
 IC7 : 4N33 !
 IC8 : 4N33 !
 IC9 : 4N33 !
 IC10 : 4N33 !
 IC11 : 4N33 !
 IC12 : 4N33 !
 IC13: 4N33 !
 IC14: 4N33 !
 IC15: 4N33 !
 IC16: 4N33 !

10
Information
If desired, a voltage divider or filter can be fitted on each analogue input. The voltage
divider can be useful if a higher input voltage than normal is to be monitored. Normally
only a maximum of 5V can be accepted by the input. The filter can be useful for eliminat-
ing (mains) hum from the signal for example. Points A to D give examples.
No attenuation and no filtering (input impedance= 100K). In place of RA a
jump wire needs to be fitted. RA is a resistor. Nothing should be fitted in
place of CA. Ri = 100K
RA : J
RB : 100K (1-04-B)
CA : /
50Hz mains filter (low-pass filter). By use of the formula, different values for RA
and CA can be calculated as a function of the desired frequency. If a high value
for CA is arrived at, then an electrolytic capacitor can be used, but check the
polarity.
Freq. = 50Hz / -3dB
CA = 1
RA : 10K 6,28 x f x RA
RB:/
CA : 330nF
An input attenuator of 10. This means that up to 50V may be connected to the
input, which is then reduced by a factor of 10. With the first values the input imped-
ance is 20k. With the values in brackets the input impedance is 200k. With higher
input voltages it is advisable to choose high values for the resistors, otherwise re-
sistors of a high power rating must be used for RA.
Att = 10
att = RB .
RA : 18K (180K) RA + RB
RB : 2K (20K)
CA : /
21. Information
CA
RB
RA
IN
AD1 ... AD4