[Tahoe Tim]

I am going to use two EV200 contactors to accomplish forward/reverse. Ordering them with aux contacts doubles the price. Is there a difference between using aux contacts on the EV200 vs an ice cube relay with a closed contact to one EV200 coil and an open contact to the other EV200 coil?

I would use a dash switch (armed only at zero motor RPM) to fire the ice cube relay coil.

It seems like there might be an issue but I throw it out there for discussion.

 

[Tahoe Tim]

Thanks. I knew that the risk of not using the true position signal wasn't much better than having no interlock. I wanted to make sure I wasn't being too anal.

I need to get over the cost of the aux option and move forward. It's not worth the safety risk.

 

[Tahoe Tim]

I was going to bus two EV200's together on one pole and cross interlock the aux contacts together; i.e. when I apply 12 volts to one, it opens the coil circuit to the other via the aux contact. (Small ice cube between to provide the logic.)

Bad idea?