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Plane settings
The ESC has a fixed throttle curve setting, so that with all
usual transmitters the stop and full power points are
linearly connected. With all programmable transmitters,
the throttle range should be set to default (±100%), the
center point set to zero and throttle trim enabled.
Nevertheless, with some transmitter types the range
needs to be adjusted. For that the throttle endpoints
have to be set so that one notch before lowest stick
position the motor is stopped and that one notch
before full power the motor is actually at full power.
Full power is indicated by the LED that is completely
turned off.
If during spin up rpm variations (wowing or erratic
sound) are experienced, the timing must be increased. If
no improvement can be obtained at 30°, then the motor
is overloaded. Here a smaller propeller, a one cell
smaller battery or a stronger motor will help. If after motor
stop you hear 2 beeps repeating, it means that the
battery voltage dropped down below the setting value.
Eventually try a cutoff voltage of 2.9 or 3.0V per cell. If
there is still no improvement, then the battery is
discharged or too weak, the wires are too long or to
small or a connector is out of order.
With an active brake you can hear these warning tones
only in windmill position. This is the small range on the
throttle stick between brake and motor start. You can
reach this position with 2 notches or with a high trim and
a short gas start.
If no automatic timing is wished, it can be adjusted
according to the following guideline.
Inrunner 0 to 12°*
Outrunner 18 to 30°*
*But re timing, be aware that your motor KV will also come
into play. Of course, if your motor manufacturer makes a
timing recommendation, it is likely preferable to use it.
Basic rule: the higher the timing the higher the full power
rpm but torque drops and motor temperature rises.
The easiest way to make these changes is via the
ProgCard II. There is also the possibility to perform the
setup with the RC-Setup. Please notice that the
complete features set can only be reached through the
ProgCard II. In case you get inadvertently in the
programming mode during a normal start-up (throttle
stick at full power), simply disconnect the battery, lower
the stick to stop, and connect the battery again. Thus you
won’t modify the adjustments.
Lipo protection / under-voltage protection:
By default the Power will be reduced, when then battery
reaches undervoltage detection threshold.
Active free-wheel:
The unlimited partial load capability refers to the
maximum full power current of the ESC.
Temperature / overload warning:
If the speed controller’s temperature exceeds its limit,
because of overloading or lack of cooling, after landing
and/
or motor stop, a warning signal is issued (3 Beeps in
the interval). But the motor is not switched off in flight
unless the temperature becomes extremely critical, then the
motor switched off.
The partial load operation between half and nearly full power
is the most difficult area for an ESC. In addition the running
time becomes longer and longer with the Lipo technology. If
it should come to repeated temperature warnings, better
cooling should be provided or current should be reduced.
These warnings are to be regarded as overload warnings
and not as normal operating condition. Because at high
temperature the components are strongly stressed, this
leads to a decreased life time.
You achieve a better cooling not only through sufficiently
dimensioned air intake, but even more efficiently through a
larger air outtake, in order to avoid a heat accumulation.
You achieve smaller currents by using a smaller propeller
or a one cell smaller battery.
BEC:
Additionally to the use of the BEC a 4 cell NiCd/NiMH
receiver buffer battery can be connected through a switch
cable into a free plug of the receiver or a through Y-cable.
The buffer battery avoids tension drops on hard servo
maneuvers, protecting the receiver’s functionality.
Make sure that no discharged receiver battery is used,
because this would load the BEC additionally by charging
the battery. A half or fully loaded Battery will not be charged
and is only discharged in extreme conditions. The plus (red)
wire of the receiver cable does not need to be disconnected.
Several ESC’s can be connected to a single receiver
without any special precautions (Parallel use of all the
BECs). The total maximum available load is the sum of the
individual BECs.
A configuration without BEC and with galvanic separation
is also possible. For that please use our opto coupler
module.
Caution:
Fundamentally it is important to make sure that no objects
are within the propeller circle when batteries are connected.
The use of this speed controller is therefore allowed only in
situations where damage and personal injuries are
impossible. A damaged governor (e.g. broken, damaged by
polarity inversion or humidity) must not be reused under
any circumstances. Otherwise it can later malfunction or fail
The ESC may only be powered from batteries; use of a
power supply is not allowed. (Why?)