National Instruments Direct Injector Driver System Manual
© 2013 National Instruments. All rights reserved.
DIX_FIXOpenCircuit
Tip Strip: Injector open-circuit fault
Detail: Indicates that the associated DI Driver channel cannot drive current above 1.5A at any point within
the injection command. This is a non-critical fault and cannot be cleared. This fault does not interfere with
injector channel operation. The fault will be automatically cleared upon the next injection command during
which 1.5A is reached.
DIX_HighVoltageLimitFault
Tip Strip: Internal boost power supply over-voltage fault
Detail: Indicates that the high-voltage supply has exceeded 195V. This can occur if the high-voltage supply is
not used at all during injection events, while energy is recovered from the injector to the internal boost supply
during
. This can also occur if an external high-voltage supply is used and is configured for
outputting more than 195V. Such a condition is strongly discouraged because the components of the DI
Driver module are only rated for 200V. This is a critical fault and will shut down the internal boost power
supply and all injector channels.
DIX_LowVoltageDriverFault
Tip Strip: Low voltage driver circuit fault
Detail: Indicates that the low-voltage, high-side FET is overloaded. This fault is often caused by a short
circuit condition during low-voltage drive phases. This is a critical fault and will shut down the internal boost
power supply and all injector channels.
DIX_ClearFaults
Tip Strip: Clears any critical faults with DI Driver
Detail: When this one-shot is pressed, all critical faults of the DI Driver module will be cleared.
DIX_OpenCircuitOverride
Tip Strip: Determines whether open-circuit faults are indicated
Detail: When
ON
, the Open Circuit fault indicators will not be updated, regardless of open-circuit fault
conditions.