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Dim 0-10V or 1-10V in differentce    2017-06-01 17:45:41
Introduction: Date:2013-09-22 Click:290 Author:admin

Control voltage range in this kind of lighting applications.

Some products use 0-10V to represent analog values, some other use 1-10V. It is a simple agreement. You can also found 0-20mA or 4-20mA analog inputs or outputs used by some other products.

Some systems are able to detect default conditions where values are not in the normal range. It is easier to detect with 1-10V or 4-20mA because 0V or 0mA are out of range.

For example, if an analog sensor is powered down, a value of 0V or 0mA is easily recognized as a default with 1-10V or 4-20mA agreement. With 0-10V or 0-20mA, a 0 value can be valid... or not...

 

For dimmming fluorescent light there are different control units on the market. Some work with 1-10V and other with 0-10V. Im used to 1-10V and that is also what is told by the lighting manufacturers. Whats different with 0-10V? can i dim lower or turn it off with 0V?

The lowest value is determined by the ballast. 0V will not take it lower than 1V and it will not turn the light off. I dont know the reason why some companys promote 0-10V. It works exactly the same as 1-10V as far as i know.

 

1-10V is used for manual dimming and then you can turn it off by pushing a button. Whereas if you are using 0-10V then you will not be sure if the lights were off or not and it consumes power as well. 0-10V dimming is only useful when its using in control system where automatically shut down of the lights can be done by using microprocessor.











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