32Service Manual – SC401, SCRUBTEC 34404 - Control System - BatteryWiring DiagramMAIN MACHINECONTROLLER (EB1)USER INTERFACECONTROLLER (EB2)RH OPERATOR’SPRESENCE SENSOR (S1)LH OPERATOR’SPRESENCE SENSOR (S2)MAIN MACHINECONTROLLERRELAY (ES1)MAIN MACHINECONTROLLERRELAY (ES1)IGNITION KEY (KEY)RIGHT.2 5VRIGHT.1 0VLEFT.2 5VLEFT.1 0VRIGHT.3 ENABLELEFT.3Left op. pres. sensor supply +Left op. pres. sensor supply -Left op. pres. sensor inputRight op. pres. sensor supply +Right op. pres. sensor supply -Right op. pres. sensor inputENABLEKEY INPUTBTN.1J201.8J201.7J201.6J201.5J201.4J201.3J201.2J201.1Power button outputPower button inputPower supply +Power supply -SPI CS3SPI MISOSPI MOSISPI clockKEY.2KEY.1Key inputKey outputB/R.2B/R.3Power relay +Power relay -24V0VPTCFUSEB/R.1 24V (LOGIC) Power supply + (permanent)B+ 24V (POWER)B-0VBTN.2 IGNITIONEXT.1 Power supply +Power button inputPower button outputPower supply -SPI CS3SPI MISOSPI MOSISPI clock5VEXT.2 0VEXT.11 SPI CS3EXT.3 SPI MISOEXT.4 SPI MOSIEXT.6 SPI CLOCKuPuPMAIN MACHINECONTROLLER (EB1)KEY.2BASE MACHINE (WITHOUT BATTERY CHARGER AND KEY)KEY.1P1P2P3LD7LD8LD9LD10LD11LD6LD5LD4LD3LD2LD1D.2Drive system enable outputDRIVE ENABLE (5V)Figure 3: