velleman VM110 USB Experiment Interface Board User Manual

velleman VM110 USB Experiment Interface Board

Specifications

• Product Name : USB Experiment Interface Board
• Model : VM110
• Manufacturer: Velleman

Features

• 5 digital inputs
• Analog inputs : 0 … +5VDC MAX!
• Adjustable internal voltage for input A1 and A2
• Address selection : open = 1, closed = 0
• Analog outputs

Warnings

WARNING: The ground of the board is not isolated from the computer ground. Take necessary precautions.

Product Usage Instructions

Demo Software Installation
If the CD does not start up automatically, follow these steps

1. Run setup.exe from the directory ‘K8055_VM110 USB board/Demo PC soft install’

If the CD starts up automatically, follow these steps

1. Choose “Browse this CD for other Velleman software”
2. Run setup.exe from the directory ‘K8055_VM110 USB board/Demo PC soft install’

If the necessary software is not included or if you want to check for updates, you can always download it for free from the Velleman Website.

Control & Indicators
The USB Experiment Interface Board has the following controls and indicators

1. 5 digital inputs (e.g. push button, switch, relay contact, …)
2. Analog inputs : 0 … +5VDC MAX!
3. Internal voltage adjustment for input A1
4. Internal voltage adjustment for input A2
5. Address selection: open = 1, closed = 0
6. Analog outputs

Connection Diagram
The connection diagram for the USB Experiment Interface Board is as follows

1. Analog voltage: 0 … 5V
2. RVx : For experimental use, mount SK2 & SK3 when using RV1,2
3. From PC USB1.X
4. To external electronics analog outpu t: 0 … 5V
5. 220V AC Relay
6. LED
7. USB
8. External DC voltage : 5 … 30V DC Adapter (ex. PS1208)

FAQ

• Q: Is the USB Experiment Interface Board compatible with all operating systems?
  • A: The USB Experiment Interface Board is compatible with most operating systems, including Windows, macOS, and Linux. However, it is recommended to check the product documentation or the Velleman website for specific compatibility information.
• Q: Can I use the USB Experiment Interface Board with external power sources?
  • A: Yes, you can use an external DC voltage source between 5V and 30V DC with the USB Experiment Interface Board. Ensure that you use a compatible adapter, such as the PS1208.
• Q: How do I adjust the internal voltage for the analog inputs?
  • A: To adjust the internal voltage for input A1 and A2, use the corresponding adjustment controls labeled RV1 and RV2.

Thank you for purchasing this module. Please read the instructions carefully to ensure correct and safe use.

This device complies with Part 15 of the FCC Rules provided the enclosed instructions are followed to the letter. Use of the device is subject to the following conditions

1. This device must not cause harmful interference and
2. The operation of this device should not be influenced by unwanted interference.

More information about FCC can be look at http://www.fcc.gov

WARRANTY

This product is guaranteed against defects in components and construction from the moment it is purchased and for a period of ONE YEAR starting from the date of sale. This guarantee is only valid if the unit is submitted together with the original purchase invoice. VELLEMAN Ltd limits its responsibility to the reparation of defects or, as VELLEMAN Ltd deems necessary, to the replacement or reparation of defective components. Costs and risks connected to the transport, removal or placement of the product, or any other costs directly or indirectly connected to the repair, will not be reimbursed by VELLEMAN Ltd. VELLEMAN Ltd will not be held responsible for any damages caused by the malfunctioning of a unit.

Specifications and features

**SPECIFICATIONS***

• 5 Digital inputs (0= ground, 1= open). On board test buttons provided.
• 2 Analog inputs (0 …+5V) with attenuation and amplification option. Internal test +5V provided. ? 8 Digital open collector output switches (max 50V/100mA). On board LED indication.
• 2 Analog outputs
• 0 to 5V, output resistance 1K5.
• PWM 0 to 100% open collector outputs
• max 100mA / 40V. On board LED indication.
• General conversion time: 20mS per command
• Power supply through USB approx. 70mA.
• Diagnostic software and communication DLL included
• *Modifications and typographical errors reserved.

DIAGNOSTIC / TEST SOFTWARE

Features

• Separate output / input test
• Clear all / set all function
• Counter function on inputs 1 and 2 with adjustable denounce (max 2KHz depending on the total I/O load).
• Analogue output with sliders
• Analogue input with bar graph indication

Demo software

Insert the included CD in your CD-ROM player.

Use the following procedure if the CD does not start up automatically

1. Run setup.exe from the directory ‘K8055_VM110 USB board/Demo PC soft install’ If the CD starts up automatically
2. Choose “Browse this CD for other velleman software’
3. Run setup.exe from the directory ‘K8055_VM110 USB board/Demo PC soft install’

• An installation wizard will guide you trough the installation procedure.
• By default the software is installed in the folder
  • ‘C :\Program Files\Velleman\K8055′.

• I f the necessary software is not included or if you want to check for updates, you can always download it for free from our Velleman Website www.velleman.be

Control & indications

1. 5 digital inputs (e.g. push button, switch, relay contact, …). Input is generally “high” (1), connection to GND makes the input “low” (0).
2. Analogue inputs (e.g. temperature sensor, potentiometer, …) 0 … +5VDC MAX!
3. If the jumper is mounted, then you can use the internal voltage and adjust it using RV2/RV1.
4. If the jumper is not mounted you must use the external voltage A2/A1.
5. Adjusting of the internal voltage for input A1.
6. Adjusting of the internal voltage for input A2.
7. Address selection, open = 1, closed = 0
8. Analogue outputs
   • 2 analogue outputs with an output voltage between 0 and +5V (impedance 1K5).
   • 2 PWM outputs with a pulse width modulation between 0 and 100%.
9. Digital outputs
   • 8 open collector contacts, to be connected with suitable inputs.
10. USB connection to computer using USB cable. correct address in the test program

REMARK: the analogue outputs and PWM outputs are always activated /deactivated together.

Connection diagram

WARNING
PLEASE NOTE THAT THE GROUND OF THE BOARD IS NOT ISOLATED FROM THE COMPUTER G ROUND!

Test procedure

• The included demo software makes it easy to experiment.
• Start by selecting the address : tick off SK5 and/or SK6 (see address selection).

ATTENTION : Execute these settings before connecting the kit with the computer or before booting the computer.

• Connect the USB cable.
• LED LD3 ‘Power’ lights up if the connection has been executed properly.
• After start-up LD8 (output 8) will flash momentarily to indicate that the circuit works as it should.
• Start the program ‘K8055_Demo.exe’.
• Next press the ‘connect’ button to connect the K8055 with the computer.

The message “Card x connected” * is displayed if the connection is successful, see fig.

• • X is the number of the card.

• You can now simulate the inputs via push buttons Inp1 through Inp5. The matching check box remains ticked off as long as you keep one of the push buttons pressed down.
• Always tick off the check box for the matching output if you wish to test a digital output.
• You can also conduct this procedure automatically : press the ‘output test’ button or activate all outputs with the ‘Set all digital’ button. Press the ‘output test’ button to test all digital outputs automatically.
• Test the analogue outputs with the ‘set all analog’ button and modify the output voltage with DA1 & DA2 Counter 1 & 2 are hardware integrated 16-bit counters, they are triggered by INP1 & INP2.
• You can test the counter with push buttons Inp1 and Inp2 : the counter adds 1every time one of these two buttons is pressed. The debouncing control allows you to determine the reaction time of the counter (0ms – 2ms – 10ms – 1000ms).
• You can use the internal analogue voltage to simulate the analogue input via potentiometers ATT1 (RV1) & ATT2 (RV2).
• The scroll bars AD1 & AD2 change on the screen whenever you adjust the position of the potentiometers. The “digital” value (0 to 255) of this internal analogue voltage can be read directly under the scroll bars.
• When the input voltage is too low you can amplify it x4 / x15.
• The analogue inputs A1 and A2 have a standard range of 0 ~ +5Vdc. To use them externally, remove the jumper caps on SK2 and SK3. The internal 5V voltage source can only be used for testing purposes.
• A gain of x4 requires a resistance of 3K3 for R8 (input signal 1) and for R9 (input signal 2). A x15 gain requires a resistance of 820ohm.
• When the gain is set to e.g. x4, the max. input voltage falls inversely proportional to 1,25V.

If you want a different gain factor you can calculate it quite easily using the following formula

• Gain A1 = 1 + (R10/R8)
• Gain A2 = 1 + (R11/R9)

PLEASE BROWSE THE CD FOR MORE INFO AND SAMPLE SOFTWARE. VISIT OUR WEBSITE REGULARY!

USB EXPERIMENT INTERFACE BOARD

Modifications and typographical errors reserved – © Velleman nv. HVM110G – 2004 – ED1 (Rev 3.0)

References

• Velleman – Wholesaler and developer of electronics

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