Atmel BLHeli SiLabs Operation manual Rev5.x
Operation manual for BLHeli SiLabs Rev5.x
Normal operation:
Power up:
Once
Throttle needs to be minimum before arming starts
Throttle up detected (arming sequence start):
Once
The maximum throttle in this interval sets the”arm” target for the governor.
Zero throttle detected (arming sequence end):
After this, the motor will run.
Once
Document rev 5.x
Entering programming mode:
Power up:
Throttle up detected (arming sequence start):
Full throttle detected (start of entering programming mode):
Zero throttle detected (continue entering programming mode):
Once
Once
Infinite
Infinite
Full throttle detected (programming mode entered):
Once
The above description is for main.
For the tail, follow the same sequence, but use right rudder as full throttle and left rudder as
zero throttle.
Document rev 5.x
Programming mode:
Function 1, parameter value 1
Function 1, parameter value 2
…etc…
Function 2, parameter value 1
Once
Once
Once
…etc…
If the throttle stick is moved to zero during one of the above sequences, the parameter value
of that function is selected and stored. And you will hear this sound:
Parameter value stored
Once
The ESC then resets itself.
If the throttle stick is moved below max (but not to zero), the current parameter will be
skipped, and programming will proceed to the next parameter. This way it is possible to
access the later parameters without going through all the beeps.
It is generally a good idea to go to full throttle again before selecting a parameter, to make
sure you have selected the right parameter.
Throttle is read in the 1 second pause between the function/parameter beeps.
If the throttle stick is never moved to zero, the ESC will reset itself after the last parameter
value of the last function. Then no changes are done to the programmed values.
If power is disconnected during the programming sequence, then no changes are done to the
programmed values.
Document rev 5.x
Programming functions and parameter values:
Programming parameter value table main:
Function 1 2 3 4 5 6 7 8 9 10 11 12 13
1 - Governor P gain 0.13 0.17 0.25 0.38 0.50 0.75 1.00 1.5 2.0 3.0 4.0 6.0 8.0
2 - Governor I gain 0.13 0.17 0.25 0.38 0.50 0.75 1.00 1.5 2.0 3.0 4.0 6.0 8.0
3 - Governor mode Tx Arm Setup Off - - - - - - - - 4 - Low voltage limit 3.0V/cell 3.1V/cell 3.2V/cell 3.3V/cell 3.4V/cell - - - - - - - 5 - Startup power 0.50 0.75 1.00 1.25 1.50 - - - - - - - 6 - Startup rpm 0.67 0.80 1.00 1.25 1.50 - - - - - - - 7 - Startup acceleration 0.4 0.7 1.0 1.5 2.3 - - - - - - - 8 - Commutation timing Low MediumLow Medium MediumHigh
9 - Damping force VeryLow Low MediumLow MediumHigh
10 - Pwm frequency High Low DampedLight
11 - Voltage compensation Off On - - - - - - - - - - 12 - Rotation direction Normal Reversed - - - - - - - - - - 13 - Input pwm polarity Positive Negative - - - - - - - - - - -
- - - - - - - - - -
Programming parameter value table tail:
Function 1 2 3 4 5
1 - Tail gain 0.75 0.88 1.00 1.12 1.25
2 - Tail idle speed Low MediumLow Medium MediumHigh
3 - Startup power 0.50 0.75 1.00 1.25 1.50
4 - Startup rpm 0.67 0.80 1.00 1.25 1.50
5 - Startup acceleration 0.4 0.7 1.0 1.5 2.3
6 - Commutation timing Low MediumLow Medium MediumHigh
7 - Damping force VeryLow Low MediumLow MediumHigh
8 - Pwm frequency High Low DampedLight Damped* 9 - Voltage compensation Off On - - 10 - Rotation direction Normal Reversed - - 11 - Input pwm polarity Positive Negative - - -
*: Only enabled for some ESCs. Default for the ESCs where it is enabled.
Default values are marked in bold
green.
High - - - - - - - High - - - - - - - -
High
High
High
Document rev 5.x
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