FETtec 4in1 ESC 45A User manual

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FETtec 4in1 ESC 45A
Manual

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Introduction..................................................................................................................................3
Features.......................................................................................................................................3
Safety warning .............................................................................................................................3
Connection Diagram ....................................................................................................................4
Layout Top................................................................................................................................4
Layout Bottom ..........................................................................................................................4
Connection to FC.........................................................................................................................5
FETtec FC................................................................................................................................5
KISS FC ...................................................................................................................................6
Traditional ESC Connection..................................................................................................6
Onewire ESC Connection.....................................................................................................7
Betaflight FC.............................................................................................................................8
Connection............................................................................................................................8
Configuration ........................................................................................................................8
FETtec Configurator.....................................................................................................................9
Settings ....................................................................................................................................9
Dimension (in mm).....................................................................................................................11

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Introduction
Thank you for purchasing the FETtec 4in1 ESC 45A.
Features
•Active current limiting @ 45A
•Input voltage: 3S-6S
•High quality 40V MOSFETs
•STM32G071 @ 64MHz
•128 kHz Motor PWM
•Automatic input signal detection
◦Dshot 300-2400
◦PWM
◦OneShot 42/125
◦Onewire
•Soldering holes for up to 5 additional capacitors (required for 5S and 6S application)
•KISS FC Passthrough
•Betaflight Passthrough
Safety warning
•Remove propeller before flashing and configuration!
•The ESC can heat up to 100°C and more
•Please ensure that there is enough space and airflow to prevent any damage because of
overheating
•Please check periodically for firmware updates in the FETtec Configurator
•Do not file the mounting holes as this may cause damage

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Connection Diagram
Layout Top
Layout Bottom
S1-S4 - Motor Signal 1-4
TLM - Telemetry (Serial)
GND - Reference Signal Ground
Bat+ - Battery+

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Connection to FC
4S
For 4S usage please note that on 5”and higher builds the use of the supplied capacitor is
advised. On 4” builds the capacitor is not required.
6S
For 6S usage an additional capacitor with the following specification is required. You can use
either a single capacitor or use multiple ones which can be connected on each corner of the
ESC.
Minimum 470uF
50V
ESR < 1ohm
We recommend to use the provided 470CKE050M capacitor.
Note: A bigger cap with only 35V might not suffice.
FETtec FC
Use the 8pin cable which comes with the FETtec 4in1 ESC 45Ato connect it to the FETtec FC

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KISS FC
Traditional ESC Connection
On KISS FC hardware motor signals are connected to the corresponding motor output and TLM
is connected to one of the TLM pads. For GND you can choose the solid or dotted line.

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Onewire ESC Connection
On KISS FC v2 hardware and a firmware of at least 1.3RC38a the FETtec 4in1 ESC 45Acan
also be connected using Onewire protocol. This requires a different connectivity between FC
and ESC. The ESC TLM pad has to be connected to the FC motor pin.

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Betaflight FC
Connection
Signal 1 - 4 have to be connected to the corresponding FC Motor outputs.
The TLM wire has to be connected to an available serial TX pin.
Configuration
In order to utilize ESC provided current and voltage sensor the following settings need to be
applied to Betaflight. (Feature, motor protocol and meter can be configured through the GUI
itself). In addition, the correct serial port need to be selected and assigned to ESC sensor.
feature ESC_SENSOR
set motor_pwm_protocol = DSHOT600
set current_meter = ESC
set battery_meter = ESC
set esc_sensor_halfduplex = ON

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FETtec Configurator
Please update your ESC periodically with the current Firmware version.
The ESC configuration tool is available at https://github.com/FETtec/ESC-Configurator
Or use the online configurator https://gui.fettec.net/ESC/index.html
The ESC firmware is available for download at https://github.com/FETtec/ESC-Firmware
FC passthrough is available for the following platforms:
•KISS FC –Firmware 1.3-RC36j (or higher)
•Betaflight 4.1 firmware (Minimum requirement for Onewire is STM32F4)
Settings
Mainpage to connect to the ESC. Please select correct connectivity type and serial/COM port.
The Overview page allows to flash individual ESCs

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The Setting page allows to adjust all available ESC parameter
- Reverse rotation direction
- Slow start
- 3D mode
- PWM min & max signal
- ESC Beep enabled
- Current calibration
- Individual ESC ID (for use on onewire protocol)
In Telemetry page you can spin the motors, view and debug the Motor telemetry.

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Dimension (in mm)
Maximum outside dimensions: 38 x 38mm
Mounting hole arrangement: 30 x 30mm with M3 mounting hole (expandable to M4)
You can use a screw driver and force it into M4 by rotating it inside the hole carefully.
Do not file the mounting holes as this may cause damage!