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NEXUS R5 WIRING
Analogue Voltage Inputs (AVI)
Analogue Voltage Inputs are inputs to the ECU
that accept variable voltage signals from 0V to
+5V such as signals from pressure, temperature
and fuel level sensors.
AVI inputs can tolerate a maximum input
voltage of 30V.
These inputs can also accept switched inputs
that change between two different voltage
levels.
The On Voltage and Off Voltage define what the
thresholds are between the on and off states.
The voltage can be viewed as a channel in NSP
to determine the thresholds for a switched
input.
Common examples of switched inputs include
A/C Request switch and intercooler spray
switch.
AVIs have a software selectable 1K pull-up
resistor to 5V, which can be enabled or disabled
within the setup page.
Pull-up resistors are generally enabled for
temperature related sensors and switched to
ground inputs.
AVI
AVI
SIGNAL GROUND
SIGNAL GROUND
Pull-up resistors are generally enabled for
temperature related sensors and switched
to ground inputs. The following configuration
requires the pull-up resistor be enabled.
AVI
AVI
SIGNAL GROUND
SIGNAL GROUND
SENSOR +5V
SENSOR +5V
Sensors with a +5V supply do not require the pull-up
resistor be enabled, for example, rotary trim modules.
Any Sensor +5V pin can be used with any Signal Ground
pin for sensors.
Specs:
• 0 to 5V
• 1000 samples per second
• Selectable 1k pull-up to 5V
• -10 to 30V indefinite withstand
• 1.5kHz signal frequency max
• All capable of DBW/narrowband use
20
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
ROTARY TRIM MODULE
HT-010504
ROTARY TRIM MODULE
HT-010504
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