Haltech E6S - Manual (Page 117)

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A variation on this type of pickup uses a magnet moving past the pole piece, instead of ferrous
metal, but generating the same wave form. An example of this type is the MSD flying magnet
crank trigger. This pickup can be used to trigger the E6S ECU.
Since there are a large number of diverse reluctor distributors it may be necessary to
connect an external custom reluctor adapter unit if the on board circuitry cannot be
configured satisfactorily. Please contact your nearest Haltech dealer if you are
experiencing reluctor configuration problems.
E.2.1 Motronic Trigger
The Motronic magnetic sensor has two wires, one positive (+), and the other negative (-), The
wires are sometimes marked as such, but more often they are not. It is very important that the
positive wire connects to PIN B (TRIGGER) on the Trigger Input plug.
The negative wire connects to PIN D (INPUT B) on the Trigger Input plug.
If you can not determine which wire is positive or negative from marking or wire colour, then
it would be necessary to check the signal going into the E6S using an oscilloscope.
As in the preceding section the E6S internal DIP switches have to be configured for a
Motronic trigger:
SWITCH POSITION FUNCTION
A DOWN Enable Main Trigger out from reluctor adaptor
B DOWN Enable Main Trigger into reluctor adaptor
C UP Enable Home out from reluctor adaptor
D UP Enable Home into reluctor adaptor
E DOWN Motronic trigger Enabled
A Motronic wheel more than often has 60 teeth (some are more or less), among them there are
two missing teeth which will often give a larger signal. The input to the E6S trigger circuit
must first go positive(+); when the signal rises approximately 50 mV a falling edge is
generated, and when the signal crosses zero volts a rising edge is generated. Missing teeth in
the Motronic wheel provide a larger pulse in the output waveform which is recognised by the
Haltech ECU as the home position.
NOTE: In the IGNITION SETUP page Trigger Edge should be set to FALLING.
THE HOME EDGE OR HOME RELUCTOR ADAPTOR ARE NOT USED.