9
VEMS is available configured for Hall sensors, these are more noise tolerant and require a +5V
(or som12V for some sensors) supply.
•
EC36-pin27 Hall signal
•
EC36-pin26 Ground
•
EC36-pin28 +5V
Configuring the crank trigger
Crank Trigger configuration can be accessed from the Base Setup menu in the Primary Trigger Settings
option. Trigger Edge should normally be rising for VR, falling for Hall. A hall sensor may be configured for
rising if the trigger edge needs to be moved the width of a tooth, but this is generally not needed. Select
the trigger type. Missing tooth is most common and includes 36-1, 60-2, and other common wheels with
missing teeth. If the wheel doesn't have any missing teeth, that is coil-type. Missing tooth type should be
n-1 if there is one missing tooth on the wheel, and n-2 if there are two missing teeth on the wheel.
Number of teeth on the wheel is the number of remaining teeth. 58 for a 60-2 wheel for example. There
are very useful defaults at the bottom of the window to set up your trigger wheel. TDC after the trigger
needs to be measured and set with a timing light. Use the Tools → Ignition Lock menu item to set your
timing at 0.25 degrees and crank the engine and verify cylinder 1 fires at TDC. Adjust the TDC after the
trigger until correct. You may need to change the First Trigger Tooth if the TDC after the trigger value gets
below 40 degrees or above 100 degres. 60 degrees is a good value to aim for. Pressing F1 on the Primary
Trigger Settings window, or any window in VemsTune, will give you some detailed help with more
specific information.
Connecting the Secondary Trigger (Cam)
VR type
