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en:hw:03-unipi11:description-of-io:03-description-of-ro [2022/07/11 13:52]
avsetula [Relay outputs]
en:hw:03-unipi11:description-of-io:03-description-of-ro [2022/07/13 08:17] (current)
lpolcerova [Relay outputs]
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 Relay outputs are terminated on terminals labelled by a switch schematic sign and serve for switching two-state devices with alternating or current voltage. The **COM** terminal is common, serving as input for switching voltage. **NO** and **NC** terminals are used as the switching voltage output.  ​ Relay outputs are terminated on terminals labelled by a switch schematic sign and serve for switching two-state devices with alternating or current voltage. The **COM** terminal is common, serving as input for switching voltage. **NO** and **NC** terminals are used as the switching voltage output.  ​
-  * **NO** - in the default state (no voltage), contacts are **disengaged** +  * **NO** - in the default state (no voltage), contacts are **open** 
-  * **NC** - in the default state (no voltage), contacts are **engaged**+  * **NC** - in the default state (no voltage), contacts are **closed**
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 **Warning:​** \\ **Warning:​** \\
-If an inductive load is connected (eg. electric motors, relay coils, contactors or even the cables in extensive electric installations), ​we recommend protecting ​the relay outputs ​by a corresponding external element (eg. varistor, RC circuit or a suitable diode). ​+If an inductive load is connected (e.g., electric motors, relay coils, contactorsor even the cables in extensive electric installations), ​it is necessary to protect ​the relay outputs ​with a corresponding external element (e.g., varistor, RC circuit or a suitable diode). ​
  
-If a capacitive load is connected (eg. power sources of LED lights), ​we recommend protecting ​relay contacts against inrush current by connecting a corresponding thermistor to the relay'​s output. ​+If a capacitive load is connected (e.g., power sources of LED lights), ​it is necessary to protect the relay contacts against inrush current by connecting a corresponding thermistor to the relay'​s output. ​
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