1.3 Important Safety Notice

To avoid unexpected motor starts please read the operating instructions very carefully. Improper wiring of the motor, battery or control wires, or set point or command line failures may result in unexpected startup or runaway conditions.
The user must always assume that such startups can happen and the user must ensure that his system is safe in all conditions. Please do all wiring and configuration work very carefully.  Follow all safety procedures in the manual and work exactly as described. Never program or run tests with a flight battery connected. Use a current-limited power supply to check the basic system behavior!
The Herkules III Powerboard is delivered pre-mounted and pre-soldered with battery power wires. Never try to de-solder the power-wires from the PCBs. The high thermal conductance of the power board makes special soldering equipment necessary. Standard soldering equipment will likely destroy the electronics. Soldering is only allowed on the motor connection pads and the battery end of the flight pack power wires. 
Please consider also to the absolute max ratings described in the Electrical Characteristics on page 11.

 
1) DO NOT CONNECT BATTERIES to THE BOARDs before having checked them for correct operation on a current-limited power supply!  Never connect a battery without being sure that the installation has no short circuit. Always test the electronics for the first time, or after any programming or setup changes, on a current limited power supply (Vmax = 24V, Imax = 3A)

2) NEVER perform the first tests WITH PROPELLERS INSTALLED ON THE MOTORS! REMOVE the propellers for safety.

3) NEVER REMOVE ALL SCREWS at the SAME TIME !!! If you want to replace them, remove carefully ONE of the screws and immediately replace it with the new one!
=> There is a precision fit cooling interface plate between the PCB and cooling plate and if it is not arranged perfectly, you may create a short circuit in the electronics!
Removing of cooling plate will result in Loss of Warranty!

4) Don’t use metal screws to mount the HERKULES III Cooling plate on your frame. If using the holes on the cooling plate, use plastic screws. I case of hard landing (or crash) the frame is not damaging the HERKULES III ESC because the screws are breaking first. Only in case of mounting the inner screws (Mikrokopter dimensions) use metal screws, but be very careful not to misalign the boards!

5) NEVER Try to re-solder or remove the thick battery cables from the middle of the PCBs. You will not manage it because the thermal impedance of the total system is very high and you need special equipment to be able to heat up the boards without destroying the electronics.

6) Only solder on the END of the wires, NEVER solder on the PCBs directly. The only permitted exception are the MOTOR wires. If they are not soldered by the factory, you can solder them but be very careful and check with magnifying glasses to make sure there are no a solder balls or wire fragments on the PCB after soldering.

7) Don’t use any protective paint or lacquer for protecting the electronics! The electronics may be destroyed by these materials. The warranty shall be voided by the use of such coatings.

Please be aware that you are operating a 250A power system which demands complete respect and care during handling, setup and operation.