Specialized Turbo Creo SL Comp E5, Service & Repair Workbook

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CREO SL: BASIC THEORY OF OPERATION
THREE COMPONENTS ARE PART OF THE CAN BIKE SYSTEM COMMUNICATION (COMPONENTS 'TALK' TO EACH OTHER)
1. TCU (MASTER WITHIN BIKE; CAPABLE OF INTERNAL AND EXTERNAL COMMUNICATION)
2. MOTOR
3. BATTERIES (INTERNAL AND/OR RANGE EXTENDER)
(SPEED SENSOR ACTS AS SWITCH, NOT PART OF THE CAN BIKE COMMUNICATION)
THIS HAPPENS WHEN TCU IS SWITCHED ON
• SWITCH IN TCU CLOSES WAKE LINE
• WAKE LINE ACTIVATES BATTERY (WAKE LINE GOES FROM TCU TO BATTERY)
•
BATTERY SENDS 48V TO MOTOR AND 12V TO TCU (12V COME DIRECTLY FROM BATTERY)
•
TCU STARTS, LEDS LIGHT UP (EVEN IF MOTOR IS NOT CONNECTED)
• SL SYSTEM IS ACTIVE
DIFFERENCE VERSUS LEVO2
ON A CREO, THE TCU ALSO STARTS WITHOUT A CONNECTED MOTOR (‘MOTOR NOT FOUND’ ON TCU), WHEREAS THE TCU OF A LEVO2 WOULD NOT
POWER ON WITH A DISCONNECTED MOTOR.