Aim MXS STRADA, Руководство пользователя

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CHAPTER 6 RPM
12 13
MXS STRADA
6. RPM
MXS Strada can get the RPM signal in the following ways:
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From ECU
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Through a square wave signal (from 5 to 50 V)
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From the low voltage (from 150 to 400 V) of the coil
6.1 RPM from ECU
RPM is one of the many data flowing from your ECU to MXS Strada.
6.2 RPM via a 5-50 V Square Wave Signal or coil (150-400 V)
In case your engine is not managed by any ECU, MXS Strada can read the signal from the low
voltage of the coil (whose peak can be from 150 to 400 V) or from a possible square
wave (the peak can be from 5 to 50V).
The pin labelled
"RPM" reported in appendix “Pinout” receives the signal:
The image shows an example of wiring for
the ignition system.
The output, labelled “GRAY TACH” gives a
5-50V output that can be directly sampled
by MXS Strada. If the output is not
available from the ignition system, the
system has to be connected to the low
voltage of the coil, as shown in the
following schematics.
Point 1 : Low voltage of the coil
Point 2 : Connected to the spark plug
Point 3 : Connected to the +12V of the
battery
1
2
3
1
2
3