MXL
User manual
Release 1.13
www.aim-sportline.com
10
4 4
2.4.4 – Sampling the RPM from the coil: low voltage RPM input
To sample the RPM signal from the coil on a low voltage input (from 150 to 400 V),
connect:
•
cable labelled “RPM” (
MXL Strada/Pista
) to the ECU RPM output that
manages the coil;
•
cable labelled “RPM 150-450V” (
MXL Pro05
) to the ECU RPM output that
manages the coil.
In case the vehicle is not equipped with an ECU take the signal directly from
the low tension coil control of the coil.
MXL
may not sample correctly the coil signal because this looks unstable. The
images below show on the left a non filtered unstable coil signal and on the right a
filtered one.
Bobina
12 V
250 - 400 V
0 V
0 V
V
12
To filter the signal use an “RPM coil-ECU” adaptor (optional shown here below). It is
a double purpose filter that allows to sample the RPM from the coil and squares the
signal wave form.
•
connect the blue adaptor cable labelled “RPM form” to the cable labelled “RPM”
of
MXL Strada/Pista wiring
.
•
connect the blue adapter cable, labelled “RPM form” to the blue cable labelled
“RPM 8-50V” of
MXL Pro05
wiring – pin 12 of 37 pins Deutsch type connector.
•
connect the red interface cable labelled “V battery” to the positive pole of the
vehicle battery. It is suggested to connect the red cable downstream the vehicle
master switch.
•
connect the black interface cable - labelled GND - to the chassis earth of the
vehicle wiring (refer to GND paragraph of this user manual for further
information).
•
connect the adapter cable labelled “RPM-Coil 150-400 V” to the coil control.
Summary of Contents for MXL Pista
Page 1: ...MXL USER MANUAL...
