Related Manuals for O.S. engine EC-11
Summary of Contents for O.S. engine EC-11
- Page 1 Engine Control Unit for UAV Engines EC-11 With EC11-LINK INSTRUCTION MANUAL version 2.4E 【 For GF40U-FI 】 2020.02.01 O.S. ENGINES MFG. CO., LTD.
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Page 2: About The Product
ABOUT THE PRODUCT ・The EC-11 is an engine control unit (ECU), which contains a 32-bit CPU. It collects the data of throttle opening, rpm, induction manifold pressure, atomospheric pressure, induced air temperature, cylinder head temperature and run the engine in the most suitable condition. -
Page 3: Names Of The Parts
NAMES OF THE PARTS 1. Engine control unit (ECU) 2. Status display LED 3. ECU connector [CN1] 4. ECU connector [CN2] Power LED [On：Power ON／Off：Power OFF] LED 1 LED 2 LED 3 Operation status LED [Blinking：Ready／On：Working／Off：Stopped] ・the followings are display LED message's meaning. LED 1 LED2 LED3 Power LED Operation status LED... - Page 4 Configuration TO FUEL PUMP UNIT & FUEL SENSOR UNIT Connect to engine Connect to engine [A] Wiring harness A (Sensor and Communication section) {CN1} ・ Throttle signal input (PWM VIH=2.6V，VIL=0.4V，MAX5.5V) ・ Fuel trim signal input (PWM VIH=2.6V，VIL=0.4V，MAX5.5V) ・ Serial communication (UART，TTL logic level is 3.3V) ・...
- Page 5 Configuration ・ To be connected to a receiver or throttle signal cable from flight controller. Specification PWM signal Set the travel width so that the PWM signal width is 1100 μs or less on the throttle closed side and the PWM signal width is 1900 μs or more on the throttle opening side.
- Page 6 Configuration ・To be connected to Crankshaft rotation sensor. Specification Hall-effect switch. [BR：Signal ／ R：DC+5V ／ BR-W：GND] Crankshaft rotation sensor ・the connector for CAN communication Specification SMP-04C-BC [R：DC+5V ／ W：Signal(High) ／ G：Signal(Low) ／B：GND] CAN communication ・Supply power. Specification DC10V～17V (MAX 1.5A) [R：Power supply ／...
- Page 7 Configuration ・To be connected to the rotation signal input cable of Igniter. Specification [BR：Signal ／ Y：GND] Ignition signal ・To be connected to Fuel pump. Specification Extension cord [R：DC+12V ／ B：GND] Fuel pump ・To be connected to Fuel pressure sensor. Specification Extension cord [R-W：DC+5V ／...
- Page 8 Configuration 【SERIAL SIGNAL CONVERTER】 ・It converts UART serial signal from ECU to RS232C serial signal. Use the cable when you connect the ECU to a computer.
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Page 9: Equipment You Need
PREPARATION (EC11-LINK) ・Using EC11-LINK, you can monitor the parameter data in real time and change the parameters. After overhauling the engine, after disconnecting the throttle linkage, reset the throttle position using the EC11-LINK. 【EQUIPMENT YOU NEED】 ・An Windows®(7/8.1/10) personal computer with a RS232C serial port, or a converter from RS232C toUSB and a USB port. - Page 10 OPERATION (EC11-LINK) CAUTION： ・Do not turn on the ECU when the fuel tank is empty.Operating the pump without fuel may damage the pump. ・In case you need to turn on the ECU without fuel supply, for example, to rewright the settings by EC11-LINK, disconnect the connector of the pump not to let the pump activate.Thirty seconds after disconnecting the connector, the buzzer rings alarming abnormality of fuel pressure, but you can stop it by clicking "BUZZ OFF"...
- Page 11 OPERATION (EC11-LINK) 【5】 confirmation of COM port assignment ・Check which COM port the serial connection to the ECU is assigned using Windows® device manager. Refer to the operation manual of the Windows®. ・In case the serial connection is assigned to other than COM1～ COM20, assign it manually to one of them.
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Page 12: Error Message
③ Check the connection between the ECU and the PC. RES TO ① Response signals from EC-11 are not received ② Check if the ECU is turned on and electric power is properly supplied. ③ Check the connection between the ECU and the PC. - Page 13 OPERATION (EC11-LINK) 《setting of the each value》 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ Input parameters in the edit boxes shown above (①～⑩), and click each button corresponding to each number (B1 – B10) to transfer the data to the ECU memory. For example, input value in edit box ① and click B1 button to transfer the input value to the ECU memory.
- Page 14 OPERATION (EC11-LINK) ②Throttle idle position [us] ・Setting of the idling position by pulse width of PWM signal. The position of the throttle valve is usually +50μs(+40μs～+50μs) from the fully close position. ・This position, slightly open from the full close position is the reference position.
- Page 15 OPERATION (EC11-LINK) ⑥End of starting mode[revolutions] Setting of the timing to release “engine starting mode”. The counting starts when engine rpm excess 960rpm. You input the parameter to decide how many revolutions after the first 960rpm “engine starting mode” is released. The parameter is usually 50 revolutions. ⑦Fuel increase rate at startup ・Setting of extra fuel injection at engine start.
- Page 16 OPERATION (EC11-LINK) CAUTION： ・Do not miss to click [Save Settings] button (B12) to write the input data in the ECU memory into the flash memory. Turning off the ECU without doing so causes loss of all the input parameters. ・Setting items ①～④ are the “Teaching processes” of throttle position. ・Do not change the parameters except for ①～⑤...
- Page 17 OPERATION (EC11-LINK) 《MONTOR》 ・Press [MONITOR] button with the ECU connected to the PC, and you can monitor the updated information in the ECU. To exit the MONITOR mode, click [Mon Stop] button ([MONITOR] is switched to [Mon Stop] during the MONITOR mode). 【information shown during the MONITOR mode】...
- Page 18 OPERATION (EC11-LINK) (8) Head temperature（℃） Temperature measured by the temp. sensor in the cylinder head (9) Intake port temperature（℃） Temperature measured by an intake air temp. sensor. (10) Throttle signal input（%） Throttle position ( 0 - 100%) controlled by throttle signals from a receiver or a flight controller. ・throttle positions are affected by the settings of the throttle servo.
- Page 19 communication protocol ・The internal data of the ECU can be collected by other external devices through its serial communication function. The communication protocal would show as followings. 《communication specification》 ・UART ・TTL logic level 3.3V ・Pin assignment (ECU side connector) +5V power supply output white green black...
- Page 20 communication protocol 《communication format》 ・command format item size data range start mark 1 byte 02h（2） command 3 byte ”MOR” 4Dh、4Fh、52h end mark 1 byte 03h（3） BCC（XOR from command to end mark） 1 byte...
- Page 21 communication protocol ・response format item size data range start mark 1 byte 02h(2) status 1 byte ”0” 30h(48) 1 byte 20h(32) ” ” unit: 8000h～7FFFh barometric pressure 4byte ”8000”～”7FFF” ① （-32768～32767） 1 byte ” ” 20h(32） unit: 8000h～7FFFh fuel pressure 4byte ”8000”～”7FFF” ②...
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Page 22: Data Length
communication protocol ・The internal data of the ECU can be collected by other external devices through its CAN communication function. The communication protocal would show as followings. 《communication specification》 ・CAN ・Pin assignment (ECU side connector) +5V power supply output white Signal(High) green Signal(Low) - Page 23 communication protocol 《CAN setting software》 ・CAN setting of the ECU is made by using a serial signal converter and CAN setting software{CAN setting_xxxx.exe}(xxxx:Version number) . 【EQUIPMENT YOU NEED】 ・An Windows®(7/8.1/10) personal computer with a RS232C serial port, or a converter from RS232C toUSB and a USB port.
- Page 24 communication protocol 【3】Starting up the software ・Execute the file {CAN setting_xxxx.exe} and open the following window. ① ④ ② ③ ⑤ ⑧ ⑦ ⑥ 【4】Confirming COM port assignment ・Make sure which COM port is assigned to the ECU serial connection by Windows® device manager. ・In case the assigned COM port is other than COM1～COM10, reassign it to one of the port from COM1 to COM10.
- Page 25 dimension unit: mm...
- Page 26 pin assignment 【CN1】 CAN〔High〕 CAN〔電源+5V〕 CAN〔GND〕 CAN〔Low〕 Serial communication〔TX〕 Serial communication〔Power supply DC+5V〕 Serial communication〔GND〕 Serial communication〔RX〕 Throttle signal input〔SIGNAL〕 Power supply DC+5V (Expansion) Fuel trim signal input〔SIGNAL〕 Throttle signal input〔GND〕 External input〔Digital 0-5V〕 Fuel trim signal input〔GND〕 External output External input〔GND〕...
- Page 27 pin assignment 【CN2】 Ignition signal output〔GND〕 Ignition signal output〔IOL=max7mA〕 Injector〔SIGNAL IOL=max1A〕 Injector 〔Power supply DC+12V〕 Fuel pump〔SIGNAL IOL=max1A〕 Fuel pump〔Power supply DC+12V〕 Throttle servo〔SIGNAL〕 Throttle servo〔Power supply DC+5V〕 Power supply DC+5V (Expansion) Throttle servo〔GND〕 External output〔GND〕 (Expansion) External output〔Digital 0-5V〕 (Expansion) Power supply〔DC10～17V・MAX1.5A〕...
- Page 28 MEMO...
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