Description
RS485 4Relay Shield
This module (shield) is designed for installation on electrical switchboard.
It features 4 electromagnetic relays to control almost any household electric device: lights, roller shutters, electrical sockets.
It also uses 4 analog current sensors to provide independent measurement for every output.
To use this module you need a RS485 MCU Module.
Technical Specification:
4x SPDT electromagnetic relay (G5Q-1-EU 12VDC),
4x ACS712-20A analog current sensor,
4 channel optocoupler for optoinsulation,
5V power regulator to power up the logic,
12-pin interface for RS485 MCU Module,
5-pin interface to connect external LEDs,
12x screw terminal for relays,
4x screw terminal for RS485 connection (12V, GND, A, B),
2x screw terminal for additional power source for full optoinsulation,
2-pole dip switch to choose desired power source for electromagnetic coils (single or separate power source),
Maximum power consumption (including RS485 MCU Module) ~2 W,
Size of Raspberry Pi (85x56 mm).
AC contact rating: 10A/250VAC
DC contact rating: 5A/30VDC
Schematic and Layout
https://drive.google.com/file/d/18Z10ApKFMLuknHzQ3MbyuIsj8IPyi2wr/view?usp=sharing
Jun 06,2020
1,466 views
RS485 4Relay Shield
It features 4 electromagnetic relays to control almost any household electric device
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Published: Jun 06,2020
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