SECM70

ECM-5634M-70

Hardware Features

70-Pin platform

Microprocessor: ST SPC563M64, 80 MHz

Memory: 1.5 M flash, 94 K RAM, 16 K serial EEPROM

Operating Voltage: 8–32 Vdc, 36 V (jump start), 5.5 V (crank)

Operating Temperature: –40 to +105 °C

Inputs

VR or digital crank position sensor

Digital cam position sensor

Up to 14 ananlogs

Up to 5 digital (4 switch, 1 speed)

up to 2 switch-type oxygen sensors

Optional wide-range oxygen sensor

Up to 2 knock sensors

Outputs

6 high-impedance injector drivers (up to 4 low impedance injector drivers)

Up to 8 electronic spark-triggers for smart injection coils

9 low-side drivers

3 lamp drivers

1 main power relay driver

up to 2 H-bridge drivers

Optional 3-phase brushless DC motor driver

1 sensor supply (5V)

Communications

2 CAN 2.0b channels

Product Summary

The SECM70 control platform fits a variety of applications, including gasoline and natural gas engines for power generation, forklifts, lift trucks, and on-highway vehicles. The SECM70 control is programmed to meet the specific needs of the prime mover and its driven load.

At the heart of the SECM70 control is a powerful 32-bit ST SPC563M64 microprocessor that runs Woodward’s ControlCore operating system. Application programming is accomplished via Woodward’s MotoHawk application software tool. MotoHawk is a rapid controls system development tool that allows controls engineers to quickly create controls software directly within Simulink diagrams, which run on any MotoHawk-enabled electronic control modules. Application developers work directly in the Simulink environment and with a one-step build are able to go from an application model to a file that can be programmed directly into Woodward production hardware. MotoHawk provides a high-level programming environment for users who have control systems expertise but don’t necessarily have specific embedded programming skills. Once the application program has been generated and loaded into the SECM70 control via the CAN port, the user can view variables and tune the control using an appropriate service interface tool such as Woodward's Toolkit or MotoTune. Connection to other devices, such as a diagnostic tool, is accomplished by means of other CAN ports available on the control. The desired information flow is programmed into the control via MotoTune or ToolKit.

The SECM70 control consists of a single rigid printed circuit board attached to an aluminum housing using thermal adhesive, which is then closed and sealed with an aluminum cover. Connections to the control are made via a single 70-pin automotive-style sealed connector. The control can be mounted directly to the engine or frame using vibration isolators which are available pre-installed on the control or separately.

Datasheets

ECM-5634M-070 Family Engine Control Modules Product Manual (26776)

Part Numbers

Part Num	HW Version	Features
1751-6680	1452 (PROD)	Mobile Industrial
1751-6649	1402 (DEV)	Mobile Industrial, on-the-fly calibratible
1751-6681	1453 (PROD)	Power Generation
1751-6650	1403 (DEV)	Power Generation, on-the-fly calibratible
1751-6682	1459 (PROD)	Marine
1751-6653	1409 (DEV)	Marine, on-the-fly calibratible
1751-6683	1461 (PROD)	On-Highway (future release)
1751-6675	1411 (DEV)	On-Highway, on-the-fly calibratible (future release)

Related Part Numbers

Part Number	Description
8923-1761	Connector Kit
8996-2162/2163/2164	Crimp Tools
8996-2167	Removal Tools
5404-1141	Pig Tail
5404-1341	Desktop Simulator Harness

Compiler

Green Hills version 4.2.4
GCC for PowerPC EABI-SPE version 4.6.0

Frequently Asked Questions/Topics

Can I diagnose PWM EST outputs?

Due to the nature of the hardware, EST diagnostics are only available when driven as a sequence and not as a PWM.

The ESTs have a caveat that certain groups must not turn off at the same time as there is shared diagnostic HW.

The groupings where you should avoid turning off at the same time are:
EST 1,2
EST 3,4
EST 5,6,7,8