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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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Table of Contents
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Summary of Contents for National Instruments NI 9758
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Page 1: Table Of Contents
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... -
Page 2: Introduction
(cRIO) module for driving low and high impedance Port Fuel Injectors (PFI) and general purpose automotive solenoid valves and actuators. The NI 9758 includes a LabVIEW FPGA VI for controlling each driver channel. Each PFI channel is individually controlled for timing and duration. -
Page 3: Hardware
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 supply as the NI 9758, a battery or power supply capable of 10 A continuous output will be required under a full load. -
Page 4: Platform Compatibility
• Maintain an ambient system operating temperature of 0 °C to 45 °C. Typical specifications of National Instruments modules might not apply when Note used in a system with NI Powertrain Control modules. National Instruments guarantees warranted specifications for all National... - Page 5 The NI 9758 has two phases of current control. The maximum phase current is 4 A. Control can be set to transition from the first to the second phase after a set time or immediately when the first current level is reached. To drive low impedance injectors, set the first phase peak current to 4 A and the second phase hold current to 1 A.
- Page 6 Do not attempt to drive low impedance injectors with the general purpose Caution low-side switch drivers. The low-side drivers are only rated for 1.2 A continuous. The resulting higher current levels could damage the low-side drivers. 6 | ni.com | NI 9758 User Manual...
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Page 7: Low-Side Drivers
PWM controller utilizes a 20-bit timer operating at 2 MHz. This provides a resolution of 500 ns and a minimum PWM frequency of 2 Hz. Since 0% and 100% duty cycles are possible, relays and actuators may be controlled in continuous on or off states. NI 9758 Manual | © National Instruments | 7... - Page 8 9 V during cranking, causing the CompactRIO controller to reset. This can be prevented by using a small backup battery and a diode pack for the CompactRIO controller. 8 | ni.com | NI 9758 User Manual...
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Page 9: Compliance And Certifications
When operating this product, use shielded cables and accessories. Caution CE Compliance This product meets the essential requirements of applicable European Directives as follows: • 2006/95/EC; Low-Voltage Directive (safety) • 2004/108/EC; Electromagnetic Compatibility Directive (EMC) NI 9758 Manual | © National Instruments | 9... - Page 10 If you need to replace it, use the Return Material Authorization (RMA) Cd/Hg/Pb 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/...
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Page 11: Physical Specifications And Characteristics
If you need to clean the module, wipe it with a dry towel. Safety Guidelines Do not operate the NI 9758 PFI Driver in a manner not specified in these Caution 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 way. - Page 12 NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. © 2013 National Instruments. All rights reserved.
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