SBUS2 telemetry adapter for JetCat ECU ©Copyright Ilkka Jauho 2013, 2014 Connections & Use Connect Servo cable to SBUS2 connection of Futaba's telemetry receiver. Set transmitter's sensor settings ( & change slots if needed due to conflicting sensors). Connect "phone cable" to ECU's GSU connector. Pump Voltage Status OFF vo remaining fuel 11000ml Technical specifications Compatible with JetCat Ecu "V6.0" or higher 9600baud ECU comm. (default, Do not change ECU settings) ECU default slave addr 1 (single turbine use only. don't change) Tested with Futaba SBUS2 receiver: R7008SB & R7003SB Tested with Futaba 18MZ & 14SG (Automatic registration of Robbe Telemetry box may not work) Compatible with Futaba & Robbe sensors Voltage range: 3.5V - 10V (2S LiPo OK) ECU Telemetry info provided: Turbine RPM, EGT (°C), Pump Voltage (V), Running state & off condition (numerical), Fuel flow (cl/min), remaining fuel (ml), Ecu battery Voltage (V) ECU signal opto-isolated for maximum safety Weight: 12g. including 30cm SBUS2 cable & 10cm ECU cable Fuel flow 1600ml/min WARNING! Failure to comply may cause permanent damage: USE ONLY JetCat original "phone" cables or the cable provided with the adapter! Cable must have all connections 1-to-1, absolutely no crossed connections. If other sensors connected to SBUS2 make sure sensor slot numbers are not conflicting with the adapter slots! Select free slots before connecting other sensors! Do not try to connect adapter to transmitter's SBUS2 connector: Automatic sensor registration is not supported; only manual slot setting is supported. Keep Channel1 programmed around middle in normal use while powering receiver on: this prevents unintentional slot page setting mode entry and accelerates power on. Channel1 can be used normally fex as Aileron. Turbine status as shown "Voltage(Ext battery): Turbine active states code Description OFF --> last off 0 condition shown 1 WAIT for RPM 2 Ignite 3 Accelerate 4 Stabilize 6 Learn Lo 8 Slow Down 10 AutoOff 11 Run 12 Acceleration delay 13 SpeedReg 14 2-shaft regulate 15 PreHeat1 16 PreHeat2 17 MainFStr 19 Keros.FullOn code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Off conditions Description Shut down via RC Over temperature Ignition timeout Acceleration timeout Acceleration too slow Over RPM Low RPM Off Low battery Auto Off Low Temp Off High Temp Off Glow plug defective Watchdog timer Fail Safe off Manual off (via GSU) Battery fail Temp sensor fail Fuel fail Prop fail Slot Page 1 (default) 2 3 4 Transmitter settings - See Transmitter's manual For Default Slot page (1) select the following sensors By renaming sensors it's more intuitive to use: Sensors slots 1: SBS-01RM (RPM), 2: CUR-F1678, 5: SBS-01T(Temp) 6:SBS-01V (Volt.) 8: RPM, 9: CUR-F1678, 12: Temperature, 13: Voltage 16: RPM, 17: CUR-F1678, 20: Temperature, 21: Voltage 24: RPM, 25: CUR-F1678, 28: Temperature, 29: Voltage Slot page setting method (Only needed if sensor slots 1-7 already in use. Do before connecting other sensors) 1. Set maximum travels for Channel 1 (Ch1) - Connect only the adapter to receiver's SBUS2 connection 2. Hold Ch1 either min or max (usually aileron stick to either side) while switching receiver power on. 3. LED starts blinking, move Ch1 immediately to the opposite end 4. LED is solid, move stick immediately back to the same end as (2.) 5. LED starts blinking fast. CENTER Channel1 now! then wait... 6. LED starts blinking sequentially 1x, 2x, 3x, 4x, 1x,2x, and so on. This indicates slot page number. One slot page is blinking 5 times before next sequence begin: ... * * * * ** ** ** ** ** *** *** *** *** *** **** **** **** **** **** * ... 7. While desired slot page is blinking move Channel1 to either end. 8. The adapter confirms the selection: LED is solid for a while and then LED starts to blink continuously to indicate the selected SLOT page: fex. 2x blinking means slot page 2 was selected. Verify that the right page got selected and switch received power off. If failure try again, new setting got saved to EEPROM. Disclaimer Manufacturer or seller of the adapter assumes no responsibility for possible damages or malfunctions caused directly or indirectly by the use of the adapter. Seller has no opportunity to ensure correct use of the adapter and sufficient testing before use. Also compatibility of other devices possibly used simultaneously in the same system cannot be verified by the seller or manufacturer. Sbus2 is trademark of Robbe/Futaba. JetCat is trademark of JetCat Germany.
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