Diode Selection and Wiring for DC 6V/2A Motor Reverse Polarity Protection

1. I have DC 6V/2A motor
2. When I connect +/- 6V the motor moves
3. There is undesired possible of connection -/+ 6V to the motor
4. What kind/parameters/how many/connection of diodes I have to use please?
Thanks
Yosef

I am not sure that I understand your question. Can you upload a schematic and give us more background to your question?

Yosef,

I think you are asking for a means of reverse supply connection protection for a 6V motor running at 2A. I assume you just don't want the motor to run backward if the supply is hooked up backward.

Which of the following are you trying to accomplish:

1) Have the motor run in the same forward direction regardless of how the supply is hooked up?

2) Have the motor run only if the supply is hooked up correctly, and not at all if the supply is hooked up backward?

There is more than one way accomplish either goal depending on whether you are looking for a "good" or just a "cheap and easy" solution.