I have a new autostart 6600 twi alarm, aftermarket door locks. the alarm puts out a neg lock and unlock. i have the 2 relays i need but i can't figure out how to wire them up. i've tried 3 different diagrams, i need to know how to wire them up so the +,- will switch for lock and unlock.....please help me out. thanks

 

Here ya go, its called reversing polarity.....good luck



Kirk R

 

thanks a lot i'll give it a shot

 

ok i must be retarded cuz that didn't work....... maybe the relays are bad. all it did was smoke as soon as i hooked the power wire up. 87a and 87 are ground when u hook 87a up to a ground. please help.

 

87a and 30 are closed when the relay is at rest, not sure how 87a and 87 can both be at gound. Look closely at the diagram, its correct, make sure your lock/unlock (-) inputs are correct. Hook up the relays w/o the lock/unlock inputs first to see what happens. You should also install a fuse on the (+) feed, cant stress how important that is......

Kirk R

 

Are you sure that the relays you have are SPDT and not SPST, they look exactly the same, except there is no 87a on a SPST relay, both pins are 87.