Convert a programmable output into a rele in a pci-6221 card

[educob]

I need to control a frequency variator from labview.

The variator requires 20V in order to be started up.

Card pci-6221 has a maximum output voltage of 5V.

I need a rele to do this.

The ideal would be to configure the programmable output to a rele output.

Can this be done?

If not what alternative do i have?

Thanks.

[Christian Mergl]

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@educob wrote:

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The ideal would be to configure the programmable output to a rele output.

Can this be done?

.... 

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[educob]

I can't see your answer.

Thanks.

[Christian Mergl]

Neither do I.

My answer was that you can use the digital IOs of the card to control a relay but you will have to check if the current the card can supply is enough for the relay.

Christian

[educob]

We tried that but it didn't work. It needed more power than the card could produce.

Thanks.

[Christian Mergl]

According the manual the Digital Output can drive 24mA. Here is for example a Reed Relais which just needs 10mA with 5V to Switch 200V with 10W.

Christian