Differences

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--- astra_conv:conversion:immobilizer:immobilizer [2014/05/03 18:39]
richard
+++ astra_conv:conversion:immobilizer:immobilizer [2014/05/20 17:07] (current)
richard
@@ Line 18: / Line 18: @@
 The three conditions above are represented by three alarm signals that are applied to the input of the latch. The output of the latch controls the immobilizer relay. Both input and output of the latch are "active low".
-In the first second after turning on ignition, a timer will drive the solid state relay output into low impedance state, so that the input state is "written" into the latch of the second 555 timer circuit. When the relay has gone high impedance again, the "immobilize" state can only be cleared (via an additional diode in parallel to the relay "contact") but not set any more.
+In the first second after turning on ignition, a timer will drive the solid state relay output into low impedance state, so that the input state is "written" into the latch of the second 555 timer circuit. When the relay has gone high impedance again, the "immobilize" state can only be cleared (via an additional diode in parallel to the relay "contact", not yet there on below photo) but not set any more.
 Below, circuit diagram and a picture of the immobilizer latch.
-{{:astra_conv:conversion:wiring:isol_check_dcd_13_immo.jpg?1000|}}
+{{:astra_conv:conversion:wiring:isol_check_dcd_14_immo.jpg?1000|}}
 {{:astra_conv:conversion:wiring:p1110476.jpg?700|}}