multiple relay connection

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mike31

Copper - Posts: 75

Joined: January 14, 2009

Location: Ontario, Canada

Posted: September 22, 2013 at 11:10 PM / IP Logged

HI

Please read this paragraph from Prostart manual:

If multiple relays or modules are connected to the Ground

Out wire, ensure that they are all diode isolated in order to avoid

feedback and damaging the vehicle. Can somebody please attach a circuit diagram AS COULD BE VERY USEFUL .Thanks in advance. MIKE

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oldspark

Gold - Posts: 4,913

Joined: November 03, 2008

Location: Australia

Posted: September 30, 2013 at 11:35 PM / IP Logged

Wire all load/relay-coil GNDs thru a diode (IN4004 etc) with the diode's line end towards GND.

If doing the same on the +12V side, it's the same but the diodes are usually placed on the +12V side - ie, +12V thru diode with line end towards load/relay-coil.

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multiple relay connection

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