SECM70

ECM-5634M-70

Hardware Features

70-Pin platform

Microprocessor: Freescale MPC5634, 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 injector drivers (3 peak/hold capable)

6 electronic spark-trigger outputs

9 low-side drivers

3 lamp drivers

1 main power relay driver

up to 2 H-bridge drivers

Communications:

2 CAN 2.0b channels

(INCOMPLETE)

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.

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