====== Relay outputs ====== #;; Unipi 1.1 #;; /* Úvodní popis RO na Unipi 1.1 / Lite */ The relay outputs are located on the terminals marked with the schematic mark of the switch, they are used to switch two-state devices and can switch AC or DC voltage. The **COM** terminal is typically common, the voltage is then at the **NO** or **NC** terminal, depending on the relay state. * **NO** - in the default state (no voltage), contacts are **open** * **NC** - in the default state (no voltage), contacts are **closed** The state (On/Off) of each relay is indicated by a LED with a corresponding label. Overload and overvoltage protection should be provided externally by a circuit breaker (ideally one for each output). Nominal current and circuit breaker type should be selected according to the load and its characteristics concerning the maximum current on the output. {{ :files:img_warning-line_b.png?nolink |}} {{ :en:hw:09_safety-instructions_pseudo-ISO-7010-attention.png?nolink |(!)}} **Attention:** \\ If an inductive load is connected (e.g., electric motors, relay coils, contactors, or 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 (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. /* Unipi 1.1 */ ===== Unipi 1.1 ===== /* zapojení RO */ {{page>:en:hw:connection-of-ro-11-hidden}} /* Parametry RO */ {{page>:en:hw:technical-parameters-ro-11-hidden}} /* Unipi 1.1 Lite */ ===== Unipi 1.1 Lite ===== /* zapojení RO */ {{page>:en:hw:connection-of-ro-lite-hidden}} /* Parametry RO */ {{page>:en:hw:technical-parameters-ro-lite-hidden}}