Dimension Engineering DoubleSwitch Radio Controlled Relay

Help & Support Robot Parts
1

I’m new to this so bear with me.
I’m attempting to build a RC unit to power 3 large amp 12v motors.

Forward - off - Reverse for each motor are the 3 functions I would like to control with my transmitter (Spektrum DX5e) and receiver (Spektrum AR6110). I plan to use the Elevator, Rudder, and Aileron signals to trigger automotive starter solenoids that would then turn the motor in the proper direction.
(Controls are return to center which I hope would be off).

All that just to ask, is the Dimension Engineering DoubleSwitch Radio Controlled Relay Dimension Engineering DoubleSwitch Radio Controlled Relaythe right device for the job? and I assume I would need one for each motor?
If not could someone please point me in the proper direction.
Thanks

2

The motors draw 70 A which is why I have them connected to a starter solenoid. Is there a state that both relays would be open? If there is could that not be my stop/neutral position?
I was thinking
S1 open / S2 Closed - Forward
S1 open / S2 open - Neutral
S1 closed / S2 open - Reverse

Or am I reading the diagram wrong?

Thanks again

3

Ok thanks for the help

4

Hi Greenie, the dual relay is a DPDT relay which would provide forward/reverse on the motors but no “stop” functionality. Also, not knowing the amperage draw for the motors it is difficult to determine if they would work (max 8A @ 12VDC).

You may have to go with an actual motor controller rated for the peak amperage draw of the motors to get the functionality your are seeking, or use a microcontroller and relays to build a custom setup.

5

Looking at the diagram, this product seems to be designed for 2 possible states.

You can always try it out and experiment, or use two of them and Y splitter from one receiver channel. Not sure if this would work honestly. Perhaps you will have to use 2 seperate channels to allow more state possibilities. I would however suggest an alternate route but don’t have any product suggestions at this time.

6

Hi Greenie,

You might want to simplify your situation considerably by using a dual DC motor controller with R/C input. Granted 70A is high, but these products do exist. You would simply connect the motor controller to your receiver and it’s ready to use (some products require slight configuration). Consider the RoboteQ Dual Motor Controller which can provide 120A continuous and includes many built-in safety features.