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Firmware Stable

Typical Wiring

warning

Incorrect wiring – risk of malfunction/damage to equipment

This section provides a typical wiring diagram. The integrator can modify the configuration of the diagram according to their needs and requirements. Creating the wiring diagram for the end application is the responsibility of the integrator.

Below is the typical scheme for the standard variant of the SX controller (24kxa1040-C00_00XTG-000BM), together with the description of the main components.

SX MV typical wiring schemeImage generated by Eeschema-SVG22k / 500mWPoweringGNDKEY17POWER25POWER_GND9ContactorGNDCONT+8CONT-7ON buttonthrottlesingle wayVCCOUT1GND~OFF button3 hallsensorsVCCHALLUHALLVHALLWGNDphase_AAphase_BBphase_CCMotor sensorGND+5V_MSENS4MSENS1(HALLU)27MSENS2(HALLV)28MSENS3(HALLW)20MSENS4(DIN1)12MSENS5(DIN2)19MSENS_GND3TEMP11TEMP_GND2UART EXTGND+5V_EXT10EXTRXD26EXTTXD18EXT_GND1UART COMGNDIOCOMRXD32COMTXD33batteryPLUSMINUSCANGNDIOCANH16CANL24COMM_GNDIO34132on / off switchGPIOsGNDIOIO+10V_OUT14IO+5V_OUT15IO+5V_OUT23GPIO029GPIO121GPIO230GPIO322GPIO431GPIO_GNDIO113GPIO_GNDIO25GPIO_GNDIO36GNDPowerstageheatsinkhphase_AAphase_BBphase_CCbatt++batt--vehicleCAN networknote: resistor preventsshortcut for simultaneouspush of both buttonsnote: order of hall u/v/w is notimportant. It will be detectedautomatically with identrunnote: CAN terminator notconnected by default.It may be enabled by jumperunder the USB cover.controller powering: flip-flopnote: two buttons can be replaced bySPDT switch or siliXcon VDS1 displayfuse 3A slowcontroller HWID: esc5-sx1f_24exa1560-400_00XTG_000BNBattery contains BatteryManagement System withshortcut protection(e.g. fuse or semiconductordisconnect switch)Zener 2x 39 VparallelSX controllerCONT+8CONT-7KEY17POWER25POWER_GND9COMRXD32COMTXD33+5V_EXT10EXTRXD26EXTTXD18EXT_GND1+5V_MSENS4MSENS1(HALLU)27MSENS2(HALLV)28MSENS3(HALLW)20MSENS4(DIN1)12MSENS5(DIN2)19MSENS_GND3TEMP11TEMP_GND2IO+10V_OUT14IO+5V_OUT15IO+5V_OUT23GPIO029GPIO121GPIO230GPIO322GPIO431GPIO_GNDIO113GPIO_GNDIO25GPIO_GNDIO36heatsinkhphase_AAphase_BBphase_CCbatt++batt--CANH16CANL24COMM_GNDIO34

Powering the signal section from a middle-voltage battery​

The controller power stage is rated up to 135 V, while the KEY and POWER supply inputs for the signal section are only rated up to 84 V. Zener diodes are placed in series to provide a fixed voltage drop, chosen so that at maximum power stage voltage, the voltage at the signal inputs does not exceed their rating.

  • Zener diodes are connected in parallel solely to increase their combined power rating.
  • A 3 A slow-blow fuse should be placed in series with the zeners.
  • Power dissipation across the zener diodes can be significant (several watts depending on operating conditions). Monitor their temperature and account for real-world operation.

Main DC fuse​

Installing a fuse on the main battery lead is recommended to ensure protection in case of a short circuit on the power circuit. The fuse is typically connected between the battery + terminal and the + lead on the controller side.

The selection of a suitable fuse is the integrator's responsibility. It is recommended that the short-circuit fuse ideally blows within approximately 2 - 3 seconds when the DC current passing through it reaches twice the DC current value for peak power at the specified voltage of the end application.

Main switch​

The controller's logic circuit is powered through the KEY pin. In this case, the KEY pin is connected to the battery + through the internal fuse.

The controller is turned ON by rising edge (positive pulse) on the POWER pin and it is turned OFF by falling edge (negative pulse) on the POWER pin. Controller retains its last state due to the flip-flop functionality (it keeps itself ON or OFF even when the POWER pin is disconnected / left floating). Rising and falling edge is generated by momentary connection of the POWER pin to the KEY or GND pins. There are several ways, how to achieve that:

  • use two momentary buttons
  • use one SPDT switch
  • use siliXcon VDS1 display
info

The total length of the wires to the main switch should be shorter than 10m.

Motor​

info

A motor with permanent magnets induces voltage (back-EMF) while spinning. This voltage is directly proportional to the motor's revolutions per minute (rpm). When the motor operates beyond its nominal rpm, it is crucial to ensure that the amplitude of the back EMF remains below the non-operational overvoltage limit.

warning

High voltage – risk of personnel injury and/or damage to equipment

In this particular case, the motor is equipped with 3 hall sensors together with the motor winding temperature sensor. The used controller is in the motor sensor variant - 'a'. More technical details can be found in Motor position sensor and Motor temperature sensor chapters.

Throttle​

The controller can process a wide range of analog throttles which provide output signal in the range of 0 - 5 V. It can be a potentiometer, hall type or just an analog signal provided by a voltage source.

The controller has also a dedicated +5 V power supply for the throttle. Detailed technical specifications can be found in this chapter.

Servo PWM / PPM input​

Servo PWM signals from an RC receiver (or similar source) are captured on dedicated timer-capable pins. The available pins, default channel and constraints depend on the hardware variant — see the PWM/PPM capture input pins channel mapping chapter for your controller.

Application support is required (e.g. the FALCON application exposes the channel selection through the in_ppm_ch parameter).

CAN interface​

The controller can be a part of the CAN system. CAN interface can be used for commanding the controller or for data exchange between the nodes.

Detailed technical specifications of the CAN interface can be found in this chapter.