Haltech E6M User Manual

Page 45

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39

Output Type

This field defines the type of ignition signal with which the ECU will drive the igniter.
The options are:
Constant Duty This signal is used to drive intelligent igniter with internal dwell
control.
Constant Charge This signal is used to drive dumb igniters without internal dwell
control. This output type will not accurately control intelligent igniters.

WARNING:

THE CONSTANT DUTY OUTPUT TYPE SHOULD NOT BE USED TO

DRIVE DUMB IGNITERS SINCE SUCH IGNITERS DO NOT HAVE

DWELL CONTROL. DOING SO WILL RESULT IN TOTAL

FAILURE OF THE IGNITER.


Coil Charge Time (ms)

This field is only applicable when constant charge is selected. The value of this field
is a measure of time in milliseconds and can range from 0.1ms - 8.2ms Typical values
are about 4-5ms.

Output Edge

This field defines which edge of the signal defines the ignition event: falling or rising.
The EB023 smart igniter uses a falling edge.


Duty Cycle (and will fall after xx% of its period)

This field defines the duty cycle high time when using the constant duty output type
with a smart igniter. For the EB023 smart igniter the duty cycle high time is 30% with
a corresponding 70% low time.


The Ignition Map is adjusted in a similar way to the Fuel Map. The keystrokes are the same,
except that one increment is one whole degree advance or retard. The best way to initially set
up the Ignition Map is to use the Library Maps, and then return to the Ignition Map later if the
ignition curve needs modification. Ignition Library Maps are explained in Chapter 5 [5.4],
Starting the Engine.
An example of an ignition range for a turbocharged engine could look like this :

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This manual is related to the following products:

E6H