Emtron’s SL4 is a wire in ECU with extreme flexibility. This ECU will support up to 4 Channels of fully sequential Fuel and Ignition. Every unit is housed in a durable billet Aluminium enclosure and includes 32MB permanent memory for on-board logging, 4-channel oscilloscope function, DBW control, Knock control using digital filter technology, high speed Ethernet communications and 3-axis G-force sensing to name a few. 1.0 General Power Supply Operating Voltage: 6.0 to 22.0 Volts DC (ECU shutdowns at 24.0V) Operating Current: 290mA at 14.0V (excluding sensor and load currents) Reverse Battery Protection via External Fuse “Smart” battery transient protection Operating Temperature Max operating range: -30 to 110°C (-22 to 230°F) Recommended operating range: -30 to 85°C (-22 to 185°F) Physical Aluminium 6061 grade CNC billet enclosure Enclosure size 120 mm x 130 mm x 27 mm Weight: 470g Connector system: 68-way Super Seal waterproof connectors with gold plated contacts Pin diameter: 1 mm Current rating: maximum 15A per pin (wire gauge dependant) Connector A: 34 pin Key 2 Super Seal Connector B: 34 pin Key 1 Super Seal Internal Dual 100MHz processors 500Mb DDR RAM (0.5Gb) 32MB ECU logging memory. Over 1200 channels available, 1Hz to 500Hz logging rate Oscilloscope 4-channel function with 32MB storage – Sampling at 100k samples/second – Includes Crank Index and Sync sensor inputs – Includes Digital Inputs 1-4 On-Board barometric pressure sensor. Range 40 – 115.0 kPa 3-Axis accelerometer. 16-Bit resolution, 2g/ 4g/ 8g dynamically selectable full-scale 2.0 Outputs 4x Port Injector Outputs—high ohm 70V clamping Outputs can be used for ground switching, 6A Continuous, 10A Limit All outputs are short circuit and over current protected No Flywheel diodes (external diode(s) required for VVT control) 4x Ignition Outputs Adjustable TTL Ignition drive current (35mA or 70mA) Outputs can be used for ground switching, 1A Continuous, 3A Limit All outputs are short circuit and over current protected No Flywheel diodes (external diode(s) required for VVT control) 10x Auxiliary Outputs Variable Valve Timing (VVT) and Variable Valve Timing Electric (VTiE), Drive by Wire (DBW), dual boost control, gearshift solenoids, stepper motor and many more. All outputs have PWM control, maximum frequency = 15 kHz Flywheel diodes integrated into all outputs All outputs are short circuit and over current protected. Low Side Driver Auxiliary 1-4: 4A continuous, 6A peak modulated, 8A limit Low Side Driver Auxiliary 5-8: 2.5A continuous, 4A peak modulated, 5A limit High Side Driver Auxiliary 1-8: High Side 4A continuous, 9A limit Half Bridge Driver Auxiliary 9-10: 5A continuous and 8A limit. Can be used as Low Side, High Side or together in H-bridge configuration for DC motor control (DBW) 1x EFI Relay Output Low Side Driver for relay control. Current limited to 200mA 1x Shield Output Connection for Trigger and Knock shielded cables. Short to battery protection 3.0 Inputs 10x Analog Voltage/Temperature Inputs Fully configurable including custom calibrations Switchable 1k ohm pull-up resistors on ANV 7-10 for temperature inputs (available on 4 channels) Accepts a 0.0 – 5.0V analog input. Resolution is 1.22mV (12-Bit) 6x Digital/Speed Inputs/Switched Inputs Frequency range from 0.0Hz up the 30.0kHz on all 6 channels Magnetic and Hall effect sensor compatible on DI 1-4 with programable trigger edge(s) Hall effect sensor only on DI 5-6 with programable trigger edge(s) Independent programable frequency-based arming threshold control, range 0.0 – 12.0V on DI 1-4 Fixed frequency-based arming thresholds on DI 5-6. Rising = 1.2V, Falling = 1.0V. Wheel speed, output shaft speed and other frequency-based signals VVT position(s) up to 4 channels available on DI 1- 4. ON/OFF switched inputs: AC request, Launch enable, cruise switch, table control switching etc with arming threshold control, range 0.0 -20.0V Accepts a 0.0 – 20.0V analog input. Resolution is 4.88mV (10-Bit) Switchable 4k7 ohm pull-up resistors on all 6 channels to 10V 2x Knock Inputs with configurable Frequency and Gain. Using Bosch digital knock integrated circuit technology Selectable center frequency from 500Hz – 25kHz Selectable bandwidth from 100Hz – 5kHz Selectable digital filter window; Hamming or Blackman 1x Dedicated Ignition Switch Input 0 – 20.0V input used for EFI Relay Control. (With input > 4V the EFI Relay output (D9) will switch ON) 2x Crank Index and Sync Engine Decoding Inputs Magnetic and Hall effect sensor compatible with programable trigger edge(s) “True” zero crossing detection on magnetic signals for precise engine position decoding. Programmable independent arming threshold control from 0.1V to 12.0V Switchable 4k7 ohm pull-up resistor to 5V OEM patterns supported 4.0 Voltage and Ground Supplies 1x ECU Supply Input 15.0A Max (pin limited) 6V – 22.0V Range Supplies ECU power Supplies power to Auxiliary 1-8 High Side Drivers 1x Auxiliary 9-10 Supply Input 15.0A Max (pin limited) Power supply for Auxiliary channels 9 -10. 1x 5.0V Sensor Supply 5.0V Vref1 output current 250mA 1x 8.0V Sensor Supply Output current 400mA 2x ECU Main Grounds 15.0A per pin, total 30A 1x Sensor 0V Reference Analog Sensor 0V Reference with short to battery protection 5.0 Communications 1x high speed Ethernet 100Mbps 1x CAN 2.0B 1Mbps/ 6 Channels per node, total 64 messages 6.0 Software Emtron’s comprehensive Emtune tuning software is used to connect to the ECU. – Microsoft Windows 7 -10 compatible – Free licence – Memory requirements: 0.5GB RAM – ECU connection using Ethernet, IPV4 protocol – Tuning and data analysis – PC and ECU data logging – Live pause and data playback – Advanced tuning functions – Diagnostics – Oscilloscope display
