National Instruments NI 9758 User Manual Download Page 1 | Manualshive

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National Instruments NI 9758 User Manual Download Page 1

USER MANUAL

NI 9758

NI Powertrain Controls

Port Fuel Injector Driver Module

Contents

Introduction .............................................................................................................................. 2
Pinout........................................................................................................................................ 2
Hardware .................................................................................................................................. 3
Powering the Module................................................................................................................ 3
Platform Compatibility ............................................................................................................. 4
Port Fuel Injector Drivers ......................................................................................................... 4
Low-Side Drivers ..................................................................................................................... 7
Compliance and Certifications ................................................................................................. 9
Physical Specifications and Characteristics ............................................................................. 11

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Summary of Contents for NI 9758

Page 1: ...t Fuel Injector Driver Module Contents Introduction 2 Pinout 2 Hardware 3 Powering the Module 3 Platform Compatibility 4 Port Fuel Injector Drivers 4 Low Side Drivers 7 Compliance and Certifications 9 Physical Specifications and Characteristics 11 ...

Page 2: ...solenoid driver is PWM controlled capable of 0 to 100 duty cycle operation Features 4 channel low or high impedance PFI driver Two phase current control Turnable current level and duration for each phase Optional recirculation at end of pulse Open and short circuit detection and reporting with short circuit disable 4 channel general purpose low side solenoid driver 1 5 A continuous duty PWM contro...

Page 3: ...ny other device The external screw terminal connector with the terminals labeled BATT 0 and GND 9 provide a second power source Typical power sources will be from automotive 12 V or 24 V battery systems The NI 9758 can accept power from 7 V to 32 V The NI 9758 requires a maximum of 100 mA from an external power supply When actuators and injectors are connected to and powered from the same power su...

Page 4: ...erating temperature of 0 C to 45 C Note Typical specifications of National Instruments modules might not apply when used in a system with NI Powertrain Control modules Note National Instruments guarantees warranted specifications for all National Instruments modules except thermocouple modules when used in a system with NI Powertrain Control modules Note National Instruments recommends the NI 9214...

Page 5: ...ircuit to battery At the beginning of each injection event the current rise rate is monitored in order to detect a short circuit If the current rises faster than expected for a typical port fuel injector solenoid then a short circuit error flag will be reported for that channel and the channel will be disabled until software clears the error flag Short circuit detection is also performed continuou...

Page 6: ...cause the hold current level of 1 A may never be reached thus reporting a false open circuit Short circuit detection operates identically to that of low impedance injector control and the channel will be disabled if a short is detected until the error flag is cleared in software Even though the short circuit detection and disable feature is present it is strongly recommended that the wiring harnes...

Page 7: ...alves turbo wastegate valves fuel pressure regulators or any single solenoid actuator which draws less than 1 2 A at the highest expected battery voltage Caution Do not attempt to drive low impedance injectors or solenoids with the general purpose low side drivers The low side drivers are only rated for 1 2 A continuous Higher current levels could damage the low side drivers Each channel is indepe...

Page 8: ...The short circuit error flag for each channel will not be cleared while the switch is being commanded closed It is strongly recommended that the user not continually clear the short circuit error flags as this may lead to driver circuit damage in the event of an actual short circuit Even though the short circuit detection and disable feature is present it is strongly recommended that the wiring ha...

Page 9: ...rds for electrical equipment for measurement control and laboratory use EN 61326 1 IEC 61326 1 Class A emissions Industrial immunity EN 55011 CISPR 11 Group 1 Class A emissions AS NZS CISPR 11 Group 1 Class A emissions FCC 47 CFR Part 15B Class A emissions ICES 001 Class A emissions Caution When operating this product use shielded cables and accessories CE Compliance This product meets the essenti...

Page 10: ...tive This device contains a long life coin cell battery If you need to replace it use the Return Material Authorization RMA process or contact an authorized National Instruments service representative For more information about compliance with the EU Battery Directive 2006 66 EC about Batteries and Accumulators and Waste Batteries and Accumulators visit ni com environment batterydirective Ferrite ...

Page 11: ...o 90 RH noncondensing Pollution Degree 2 Ingress Protection IP30 For indoor use only If you need to clean the module wipe it with a dry towel Safety Guidelines Caution Do not operate the NI 9758 PFI Driver in a manner not specified in these operating instructions Product misuse can result in a hazard You can compromise the safety protection built into the product if the product is damaged in any w...

Page 12: ...truments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patents Notice at ni com patents You can find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compliance ...

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