National Instruments NI DIDS-2103, User Manual

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Detail: Operating mode applied to the associated DI Driver module.
Each DI Driver module can be independently assigned a mode of operation which will apply to all channels
of the associated DI Driver module. The DIX_Mode refers to the mode of sending injection commands to the
channels of the associated module. It is still necessary to configure the current and voltage drive profile via
this DIX_Driver Setup window.
Direct Mode: The DI Driver module channels are commanded directly by external digital inputs of the NI
9411 modules. The digital input which commands each channel can be configured via the Digital Input
Setup window. The digital input level which commands the DI Driver channel ON is configured via the Invert
buttons of the Digital Input Setup window. The duration of the injection command is determined by the direct
duration of the digital input. The maximum duration allowed is 5 msec. If longer durations are required,
consult with your National Instruments sales engineer or support team.
Calibration Mode: Calibration mode is for the purpose doing injector flow calibrations. Calibration mode
is configured via the Calibration Mode Setup window for a specified number of injection events, command
duration and command period. Only one channel of each module may be enabled for Calibration mode . If
more than one channel is enabled, then commands will not be delivered.
Triggered Multi-Pulse (TMP) Mode: The DI Driver module channels are commanded by a specified
sequence of pulses and triggered by an external digital rising or falling edge to the assigned digital input
channel. The pulse sequence is configured via the DI-TMP tab of the Pulse Generation Setup window. The
external trigger channel is assigned via the Digital Input Setup window.
Engine Position Tracking (EPT) Mode:
The DI Driver module channels are commanded by a specified
sequence of pulses and triggered by crankshaft angle events for each pulse, with respect to an assigned
Top Dead Center (TDC) reference value. The pulse sequence is configured via the DI-EPT tab of the Pulse
Generation Setup window. The TDC reference value is configured via the TDC Channel Mapping tab of the
Engine Position Tracking Setup window. Engine position tracking parameters are configured via the EPT tab
of the Engine Position Tracking Setup window for a variety of crank and cam signal patterns.
DIX_PowerSupplyEnable
Tip Strip: Enables internal boost power supply DI Driver Setup window
Detail: When ON , the module internal boost power supply is enabled and will maintain the working voltage
specified by DIX_HVTarget . When
OFF
, the module internal boost power supply is disabled. The actual boost
voltage is displayed in the Internal High Voltage indicator within this window. For more information on the
module internal boost power supply, please see Powering the System .
DIX_InjectionEnable
Tip Strip: Enables all channels of module
Detail: When
ON
, the module injection control circuitry is enabled. When
OFF
, the module injection control
circuitry is disabled. This parameter does not generate any injection pulses, but only enables the driver
circuitry to operate when fuel commands are generated.