One is for stand-alone locks with no alarm box...other takes an alarm into consideration.
1. Stand-Alone: No relays required.
Only a DPDT (double pole, double throw) high- current momentary swtch is needed.
(but hard to find...try DigiKey, Jameco or any other mailorder electronics catalog)
The two leads (+/-) from each lock motor are wired in parallel.
Need two SPDT Bosch style automotive relays. One SPDT momentary switch.
Once again the (+/-) lock motor leads are wired in parallel.
If two switches are desired, just run the wires in parallel to each switch.
I have two methods to wire up power locks for anyone that needs the info:
They are connected the following way to the switch contacts:
LOCK
________
| |
motor + | __ __ | motor -
| |
+12V | __ __ | GND
| |
motor - | __ __ | motor +
| |
|________|
2. For alarm equipped cars...
(this method's applicable even if you don't have an alarm)
(MOTOR+) (MOTOR-)
| |
30 30
GND--87a _____ 87----- +12V -----87 _____ 87a--GND
| |
_|_ _|_
| | | |
GND---85-|___|-86-------o o--86-|___|-85---GND
| |
RELAY1 | | RELAY2
| |
alarm output----------o.| |
lock \ o----------alarm output
+12V---\ | unlock
\_.___|
SPDT MOMENTARY SWITCH
Capacitors can (should) also be wired in series in each (+) lead to each motor to prevent them from burnout in case the switch is push for too long.
