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Relay Diagram for Switching Polarity


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freewheelerrg 
Member - Posts: 2
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Joined: June 09, 2009
Location: Minnesota, United States
Posted: June 09, 2009 at 10:04 PM / IP Logged  
I need help configuring and setting up a relay(s) that will do the following.
My 12 volt motor is normally off. When I push a 2 button remote control I want the first button to make the motor run clockwise. When I push the second button of the remote I want the motor to run counter-clockwise. How would I wire this and what type and how many relays would I need to accomplish this polarity switching?
Thanks in advance.
i am an idiot 
Platinum - Posts: 13,663
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: June 09, 2009 at 10:46 PM / IP Logged  
Scroll down to the diagram for Actuators/Reverse The 2 wires that are labeled to Actuators should now read to Motor. All other connections are labeled properly for your application.
hotwaterwizard 
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Location: California, United States
Posted: June 11, 2009 at 10:13 PM / IP Logged  

Relay Diagram for Switching Polarity -- posted image.

John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
i am an idiot 
Platinum - Posts: 13,663
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
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Posted: June 14, 2009 at 5:19 PM / IP Logged  

Most alarm outputs are negative.  The above diagram is designed to work with a positive out.   Following is the diagram I referenced earlier.  It uses a negative output to trigger it.  

Relay Diagram for Switching Polarity -- posted image.
hotwaterwizard 
Silver - Posts: 1,350
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Joined: December 11, 2003
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Posted: June 14, 2009 at 7:01 PM / IP Logged  

Whoopdie Do just switch around a couple of wires.

Relay Diagram for Switching Polarity -- posted image.

John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
i am an idiot 
Platinum - Posts: 13,663
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: June 14, 2009 at 7:05 PM / IP Logged  
I am pretty sure that if he noticed that there was a problem with the setup, he probably would not have been here asking for help. 
freewheelerrg 
Member - Posts: 2
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Joined: June 09, 2009
Location: Minnesota, United States
Posted: June 15, 2009 at 10:40 AM / IP Logged  

Thanks for the info guys, it was very helpful. 

Just as an FYI on what I'm trying to do, this setup is for my boat lift.  I have a 12 Volt motor that I attached to the lift wheel and to move the lift up and down the motor just has the polarity reversed.  I want to be able to install a low volated remote control switch that I can operate from inside my boat while the 12 volt motor draws around 25 to 30 amps, thus the need for a relay.

i am an idiot 
Platinum - Posts: 13,663
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: June 15, 2009 at 1:55 PM / IP Logged  

Depending on whether your remote device puts out a negative or a positive voltage, you have a diagram for each.  Good Luck and let us know how it works out.

hotwaterwizard 
Silver - Posts: 1,350
Silver spacespace
Joined: December 11, 2003
Location: California, United States
Posted: June 15, 2009 at 10:35 PM / IP Logged  

If you examine the circuits all 3 are basicly the same circuit with different hot and grounds. If you want the switch version here it is.

Relay Diagram for Switching Polarity -- posted image.

Relay Diagram for Switching Polarity -- posted image.

John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

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