OMEM710 Hardware Manual 2v11
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The coil dwell time is set by option Coil Dwell Factor. This is a unitless value typically 20 - 25 for a
DIS coil pack. Charge times can be varied with respect to battery voltage and engine speed using
the Dwell vs Battery table and Dwell vs Speed table. Setting these table values to 100% gives a
constant dwell time.
The options Dwell max and Dwell min are the limits of dwell time regardless of calculated values
from the tables and coil factor option. These limits are measured in internal units. Contact Omex if
you want to change these values.
When running the engine, the current dwell time can be monitored using parameter Dwell Time.
Calibrating Dwell Time
A startup calibration from Omex will have typical values for charge time alterations against battery
voltage and engine speed so you will normally only need to adjust the Coil Factor. You should use
the lowest value that still makes the greatest torque output from the engine.
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