Просмотр кода страницы Модуль релейных выходов 3A (WBIO-DO-R3A-8)/en

<languages/>
[[Файл:WBIO-DO-R3A-8.png|300px|thumb|WBIO-DO-R3A-8]]

== Purpose == 
Control of contactors, warning lights, etc. 

==Technical specifications==

Contains 8 relays. Two of them are rocker (NO/COM/NC) switching corresponding 8 outputs. The outputs are output to screw clamps designed for a maximum current of 20 A.

Permissible current: up to 3A per channel.

 Our detailed article in russian on habr.com about the choice of relay parameters for the switched load: https://habr.com/ru/company/wirenboard/blog/422197/

{| class="wikitable"
!Parameter
! colspan="2" |Value
|-
|Number of outputs
| colspan="2" |8
|-
|Output type
| colspan="2" |mechanical relay
|-
| rowspan="2" |contact Configuration
|K2-K7
|SPST, normally open
states:

* off
* C is closed and NO
|-
|K1, K8
|SPDT (contacts K, NO, NC)
conditions:

* C and NS closed
* C and NO closed
|-
|Maximum switching voltage, alternating current
| colspan="2" |250 V
|-
|Maximum switching voltage, direct current
| colspan="2" |30 V
|-
|Maximum switching current, per channel (*)
| colspan="2" |3 A
|-
|The channel resistance in the open state
| colspan="2" |< 100 megohms
|-
|Voltage isolation between the controller and the output
| colspan="2" |1500 V (RMS.)
|-
|Lifetime: number of switches
for 10 A 230 V AC load, cos φ = 1
| colspan="2" |100 000
|-
|Module type
| colspan="2" |"O" (non-inverted address scheme)
|-
|Maximum power consumption
| colspan="2" |1W
|-
|Width, DIN units
| colspan="2" |3
|-
|Size
| colspan="2" |53,3x90,2x57,5 mm
|}
<nowiki>*</nowiki>) Maximum switching current is specified for 230 VAC resistive load.

[[File:DIN 3U.png |300px|thumb|right|Dimensions]]

== Connection to the controller ==
See [[Модули ввода-вывода/en#Activating the modules in the controller web interface|Activating the modules in the web interface of the controller]]. In the Module type field, select '''WBIO-DO-RxA-8: 8 Channel Relay I/O module'''. In the web interface the relay will be presented by the controls of EXT'''x'''_R3A1 — EXT'''x'''_R3A8 of the Discrete I/O devices. The corresponding MQTT-topics: /devices/wb-gpio/controls/EXT'''x'''_R3A'''y'''.
[[File:Wbio-do-rxa-8_controls.png|300px|thumb|right|Controls of the module in the web interface]]

== Load connection==

Relays are connected in a phase break.

[[Файл:Relay outputs.png|400px|thumb|none|Connection scheme]]