User Manual

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KISS - Keep it super simple. Manual v1.2 for the 24A Race Edition

Scope of Delivery:

1x KISS ESC 24A RE assembled board

Special Features:

• 32-bit ARM Cortex MCU @48Mhz

• Telemetry capability (voltage, current, temp, rpm)

• Overcurrent protection (measures the current and reduces it to max 30A)

• Over temperature protection (reduces the max power if hotter then 120°C)

• expanded adaptive auto timing (3,25-30° advance will be calculated on each

commutation)

• For Race Multicopters (24A continuous also with bad cooling *)

• High max. RPM (450.000ERpm, 64.000Rpm with a 14Pol Motor)

• Small size (19 x 27 mm)

• Accurate RPM control (~ 950 steps)

• No additional capacitor needed**

• Very fast throttle response

• Linear throttle response

• Active freewheeling (low diode losses)

• Regenerative braking

• Fast FET switching because of the use of gate drivers

• 2-5S LiPo **

• Oneshot42, Oneshot125 and normal (25 – 500Hz) PWM autodetected.

(**) For very long LiPo power lines (more than 20cm) or for smoothing the power supply, attache a 100 - 400μF

Low ESR 25V (or more) electrolytic capacitor to the power pads.

Caution! When used with 5S lipo, the use of a electrolytic capacitor is recommended.

(*) e.g. When mounted between two CF plates

Safety Warnings:

• Due to the regenerative braking, the KISS ESC should only be powered by LiPo

batteries. A power supply might get damage when braking. The ESC takes care of

itself.

Summary of content (6 pages)

PAGE 1
KISS - Keep it super simple. Manual v1.
PAGE 2
• • • • • • Never start a brushless motor in your hands! While starting up with propellers mounted, always care for distance yourself and objects Never power up your ESC/speed controllers without a valid signal transmitter (receiver or FC) is connected. The KISS ESC can be locally heated up to 80 ° C during operation! While soldering do not connect a voltage source at the ESC / speed controller. Some components on the KISS ESC can be destroyed by static charge.
PAGE 3
Commissioning of the ESC / speed controller for a brushless electric motor: • • • Soldering each of the three motor cables a motor to each one of the three solder pads (1) LiPo power cable with plug solder (2 + 3). IMPORTANT !!! Note polarity, otherwise the ESC / controller is immediately destroyed when connecting the power supply. The LiPo can also be damaged.
PAGE 4
B) On delivery status JP1 (6) is open. If a change of direction of motor rotation is desired, the jumper can be closed. Close the jumper by adding solder to the pads → building a solder bridge Functionality: After powering up the KISS ESC (attaching a Lipo battery) the LED (8) lights up for about half a second and the motor beeps (high-low-high). This signaled the ESC receives a valid PWM / servo signal, the LED (8) lights up again and stays on. About the engine, another longer beep is heard.
PAGE 5
The Copter jerks at full speed 1. if you use 5S you might use a external capacitor, or if you already have one it might be to weak. 2. the ESC might go to its overcurrent protection. In this case it reduces its max current to 30A. This reduction can confuse the FC. Please lower the load in this case. DIY Instructions: Flashing the KISS ESC 24A 1. Connect the USB-UART to one ESC (RX-TX TX-RX and GND-GND) 2. Unmount all propellers! 3. Connect the USB- UART to your computer and then power the ESC. 4.
PAGE 6
7. If you have all serial numbers, go to http://ultraesc.de/hexGen/index.php, enter your serial numbers and press “get hexfile” 8. You will get a hex file that will work on the ESC's with the entered serial numbers. 9. Download and install http://www.st.com/web/en/catalog/tools/PF257525 10. Connect one ESC to the USB UART and close its boot jumper (BT on the bottom side) before you power it.