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K8000
COMPUTER INTERFACE BOARD
- SIXTEEN INPUT / OUTPUTS WITH OPTO COUPLER
- EIGHT - 6bit (64 steps) ANALOG OUTPUTS
- ONE - 8bit (256 steps) ANALOG OUTPUT
- FOUR - 8bit (256 steps) ANALOG INPUTS
- SIMPLE CONNECTION WITH PRINTER PORT
- PRINTER BY-PASS CONNECTOR ON BOARD
- FULL OPTO-ISOLATION WITH COMPUTER
modifications reserved
H8000IP-ED2
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Summary of Contents for Velleman K8000
- Page 1 K8000 COMPUTER INTERFACE BOARD - SIXTEEN INPUT / OUTPUTS WITH OPTO COUPLER - EIGHT - 6bit (64 steps) ANALOG OUTPUTS - ONE - 8bit (256 steps) ANALOG OUTPUT - FOUR - 8bit (256 steps) ANALOG INPUTS - SIMPLE CONNECTION WITH PRINTER PORT...
- Page 2 VELLEMAN Components NV Legen Heirweg 33 9890 Gavere Belgium http://www.velleman.be...
- Page 3 Color code table...
- Page 4 Construction 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 S should not be mounted.
- Page 5 Construction 6. IC sockets 9. Resistor Trimmer q RV1, RV2 : 10K q IC1 ... IC16 : 6P q IC17 ... IC20 : 16P Rv1 = Vmax, max DAC output volt- q IC21 : 14P (S) age : 0 ...10V q IC22 ...
- Page 6 Construction NOTE K8000 12. Terminal blocks 15. 25P sub D connector MALE q J1 … J16 : 16 x 2P ! q J17 … J29 : 13 x 2P ! q J30 : 1 x 2P q J31 : 1 X 3P...
- Page 7 Construction 18. Voltage regulator. 19. Transformers The back side corresponds to the thick line. VR... q TRANSFO 1 : 1 X 15V (2X7,5V) q TRANSFO 2 : 1 X 6V (S) q VR1 : UA7812! 20. IC’s (watch the position of the notch) q VR2 : UA7805! q IC1 …...
- Page 8 Information 21. Information If desired, a voltage divider or filter can be fitted tn each analogue input. The voltage divider can be useful if a higher input voltage than normal is to be monitored. Nor- mally only a maximum of 5V can be accepted by the input. The filter can be useful for eliminating (mains) hum from the signal for example.
- Page 9 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 impedance is 20kÙ. With the values in brackets the input impedance is 200kÙ. With higher input voltages it is advisable to choose high values for the resis- tors, otherwise resistors of a high power rating must be used for RA.
- Page 10 Connection numbering 22. Connection numbering Output numbering is important, especially if a number of cards are to be used to- gether as these numbers will be used by the control programmes. Cut out the desired numbers from the sticky labels provided. Input/Outputs (I/O): I/O1 to I/O16, or if used as slave I/O17 to I/O32...
- Page 11 Test and connection 23. Test and Connection TEST Prior to testing the card by computer a number of "passive" tests can be done. Connect the connectors, MAINS N and L to the supply voltage. Normally no LEDs should light up. Measure the voltage on testpin +5V to see if the 5V supply voltage is present.
- Page 12 Diagram 24. Diagram...
- Page 13 PCB Layout 25. PCB Layout...
- Page 16 VELLEMAN COMPONENTS NV Legen Heirweg 33 9890 Gavere Belgium Europe Info ?: http://www.velleman.be Modifications and typographical errors reserved © Velleman Components H8000IP - 2001 - ED2...
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