17
Digital Pulsed Outputs (DPO)
Digital Pulsed Outputs are capable of producing
pulsed waveforms with varying duty and
frequency.
When a Digital Pulsed Output is activated by the
ECU the output will switch to ground.
The pull-up voltage specifies the waveforms
maximum voltage output eg 0 to 12V or 0 to 5V.
DPOs can be used to control various low-current
devices such as shift lights, bypass air control
valves, boost control solenoids, tachometers etc.
Specs:
• Individual software-selectable 12V or 5V
4k7 pull-up
• Flyback protected
• Capable of switching 3A to ground
• 10kHz switching speed
• Automatic overcurrent protection
• 0 to 27V voltage feedback
Half Bridge Outputs (HBO)
Half Bridge Outputs are push-pull pulse width
modulated (PWM) outputs. If not being used as
push-pull drivers, Half Bridge Outputs can be
used as generic high/low PWM outputs capable
of sinking 8A to ground and driving 8A to 12V at
2.2kHz.
HBOs can be used to control any push-pull type
device such as DBW throttle motors (max of 2
wired separately) and stepper motors.
When used as generic high/low switched or
PWM outputs, Half Bridge Outputs can be used
as generic low-side DPOs or to control devices
such as high-side driven solenoids (e.g. VTEC
Solenoids), high side switched automatic
transmission solenoids etc.
Specs:
• Capable of sinking 8A to ground and
driving 8A to 12V
• Automatic Overcurrent and
Overtemperature Protection
• 0 to 27V voltage feedback
• High side current feedback
• 18kHz switching speed in DBW mode
• Capable of 0-100% duty cycle
NEXUS R5 WIRING
DPO
HCO
BOOST
CONTROL
SOLENOID
TO OTHER
DEVICES
HBO 1
HBO 4
HBO 2
HBO 3
DBW THROTTLE 2
DBW THROTTLE 1
Example wiring connection
Example wiring connection
Ensure the High Current Output (8A or 25A)
used to power solenoids and other devices is
capable of supplying the required current.
Injection Outputs
All Injectors are to be wired directly to the ECU’s
corresponding cylinder output pins.
When an injection event occurs the ECU will
ground the output pin, opening the injector.
All injectors must be wired to a 12V
supply from one of the High Current Outputs on
the NEXUS R5.
When not used for injection, pins can be used as
generic Digital Pulsed Outputs (DPO) capable of
switching 2A to ground.
Specs:
• Current controlled output
• 8A Peak, 2A Hold
• 0 to 55V voltage feedback
INJ #1
INJ #4
INJ #2
INJ #3
INJ #5
INJ #8
INJ #6
INJ #7
HCO
WIRING SHOWN
SEQUENTIAL INJECTION
Example wiring connection
(Sequential Injection wiring shown)
Ensure the High Current Output (8A or 25A) used to
power the injectors is capable of supplying the required
current.
16
Содержание NEXUS R5
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