Great Planes BL-8 Brushless ESC - GPMM2070 - Manual (Page 3)

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Battery type Series of tones
NiCd: (cuts at 50% of initial battery voltage)
2-cell Li-Po: (cuts at 5.6V)
3-cell Li-Po: (cuts at 8.4V, factory default)
F. REVERSE ROTATION: The ESC will sound a series of tones
as shown below to indicate the direction of motor rotation can
be reversed. If you do NOT wish to change the direction of
rotation wait 5 seconds after these tones sound and skip to the
soft-start feature below. To CHANGE the direction of motor
rotation, move the throttle stick to minimum when you hear
these tones. The ESC will sound “
” to indicate the new
setting was accepted, and the ESC is now armed and ready
for operation. Skip to Step 8 if you do not wish to make any
other programming changes. To CHANGE ANOTHER
programmable feature disconnect the battery from the ESC
and return to Step B above.
Note: It may be necessary to
reverse a motor’s rotation when using a gear drive.
Reverse Rotation:
G. SOFT-START: The ESC will sound two different series of
tones to indicate the two soft-start settings as shown below. If
you do NOT wish to change the soft-start setting wait 5
seconds after the “
” tones sound and skip to the low
voltage indication feature below. To CHANGE the soft-start
setting, move the throttle stick to minimum when you hear the
tones which match the setting you wish to have. The ESC will
sound “
” to indicate the new setting was accepted, and the
ESC is now armed and ready for operation. Skip to Step 8 if
you do not wish to make any other programming changes. To
CHANGE ANOTHER programmable feature disconnect the
battery from the ESC and return to Step B above.
Note: It’s
often recommended to enable the soft-start feature when
using the motor with a gear drive, to help prevent breakage of
the gears as the motor begins rotation (especially when a
large diameter prop is being used). Enabling the soft-start
feature is optional when not using a gear drive, but can be
used as a safety precaution.
Enable: (factory default)
Disable:
H. LOW VOLTAGE INDICATION: The ESC will sound three
different series of tones to indicate the three low voltage
indication settings as shown below. If you do NOT wish to
change the low voltage indicator setting wait 5 seconds after
the “
” tones sound and skip to the timing feature below.
To CHANGE the low voltage indicator setting, move the
throttle stick to minimum when you hear the tones that match
the setting you wish to have. The ESC will sound “
” to
indicate the new setting was accepted, and the ESC is now
armed and ready for operation. Skip to Step 8 if you do not
wish to make any other programming changes. To CHANGE
ANOTHER programmable feature disconnect the battery from
the ESC and return to Step B above.
This feature warns you that the battery’s voltage has dropped
to a dangerously low level. The ESC can be set to give a
warning by either reducing or totally cutting throttle. When the
throttle change is observed the airplane should be landed
quickly. This feature can also be set to “ignore” so that no
indication is given. When the low voltage indication is given the
ESC will still deliver power to the receiver and servos to
control the airplane, and regular throttle control can be
regained by cycling the throttle stick to full minimum and back
upward, but the airplane should be landed quickly before
all control is lost. The voltages at which the low voltage
indications will activate are as shown in the
“BATTERY TYPE”
section above.
Ignore (no indication):
Reduce throttle power (factory default):
Cut motor power:
I. TIMING (rotor advancement timing): The ESC will sound
three different series of tones to indicate the three timing
advancement options as shown below. If you do NOT wish to
change the timing setting wait 5 seconds after the tones “
”
sound and skip to the switching frequency setting below. To
CHANGE the timing setting, move the throttle stick to
minimum when you hear the tones that match the setting you
wish to have. The ESC will sound “
” to indicate the new
setting was accepted, and the ESC is now armed and ready
for operation. Skip to Step 8 if you do not wish to make any
other programming changes. To CHANGE ANOTHER
programmable feature disconnect the battery from the ESC
and return to Step B above.
Selecting the proper timing will help to optimize the overall
efficiency of your power system. The “automatic” setting is
acceptable for all types of brushless motors. The “soft” setting
is for “multi-pole” or “inner-rotating” motors. The “hard” setting
is for outrunner type motors.
Automatic (7-30 degree advance,factory default):
Soft (7 degrees):
Hard (30 degrees):
:
J. SWITCHING FREQUENCY: The ESC will sound two different
series of tones to indicate the two switching frequency options as
shown below. If you do NOT wish to change the switching
frequency wait 5 seconds after the tones “
” sound and skip
ahead to the restore factory default setting below. To CHANGE
the switching frequency, move the throttle stick to minimum when
you hear the tones that match the setting you wish to have. The
ESC will sound “
” to indicate the new setting was accepted,
and the ESC is now armed and ready for operation. Skip to Step
8 if you do not wish to make any other programming changes. To
CHANGE ANOTHER programmable feature disconnect the
battery from the ESC and return to Step B above.
Note: The
8kHz frequency is good for all types of 2-pole and outrunner type
motors, and the 16kHz setting is good for “multi-pole” or “inner-
rotating” motors.
8kHz (factory default):
16kHz:
K. RESTORE FACTORY DEFAULT SETTINGS: The ESC will
sound a series of tones to indicate the function for restoring all
ESC settings back to the factory defaults. If you do NOT wish
to restore all settings back to factory defaults wait 5 seconds
after these tones stop and skip ahead to the active RPM
control setting below. To CHANGE all settings back to the
factory defaults, move the throttle stick to minimum when you
hear these tones. The ESC will sound a single tone “
” to
indicate the new setting was accepted, and the ESC is now