Recalibrating and adjusting the msc-mxpro bl esc, Technical specifications – Losi LOSB0128 User Manual

Page 7

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Losi TEN-sCTE RTR • iNsTRuCTioN maNuaL

EN

Recalibrating and adjusting the
msC-mXPRo BL EsC

Preparing the Transmitter
1. Make sure the transmitter batteries are fully charged.
2. Power the transmitter on.
3. Set the Travel Adjust to the maximum value in the forward and reverse

directions. If your transmitter has an adjustable throttle trigger, please select
70/30.

4. Make sure the throttle channel reversing is set to NORMAL.
5. Center the throttle trim and make sure any sub-trims are set to 0.

Connecting the Battery to the ESC
1. Make sure the ESC power switch is in the OFF position.
2. Connect the blue EC3

battery connector to the ESC.

3. Power the transmitter on.
4. Power the ESC on.

Using Reverse
1. Apply brake.
2. Return the throttle to neutral when the vehicle comes to a stop.
3. Apply brake again. Reverse is now active.
NoTiCE: There is no delay when changing from Reverse to Forward. Not allowing
the vehicle to stop before changing from Reverse to Forward may cause damage
to the vehicle gearing, motor or both.

ESC/Radio Calibration
Individual transmitter’s signals for neutral, full and full brake vary. You must
calibrate the ESC so that it will operate most effectively with your transmitter.
Anytime the ESC is powered up with a new transmitter or with different throttle
channel settings, it will need to be calibrated to “know” what the transmitter’s
throttle settings are.
If you are using a Futaba or Futaba OEM brand transmitter, you will need to set
the transmitter’s throttle channel direction to the REVERSE (Rev) position. This is
either an external micro switch on the transmitter or an option available within
the computer programming of the transmitter’s throttle channel.
Do not plug in the battery yet. Make sure that the battery polarity and input
polarity on the ESC are correct. Check the on/off switch of the Losi ESC to make
sure that it is in the OFF position (ON is marked in small letters on one side). We
recommend removing your pinion gear before calibration.

One-Touch Calibration
The motor does not receive power when the ESC is in programming or calibration
mode.
1. Start with the transmitter ON and the ESC switched OFF and not connected to

the battery.

2. Plug a battery into your Losi ESC.
3. Hold full throttle on the transmitter and turn the ESC switch ON. Keep holding

full throttle on the transmitter. If all your connections are correct, you will hear
one multi-toned initialization “ring” from the motor (all tones are played by the
ESC vibrating the motor).

4. After a second or two, the green LED on the ESC will blink rapidly and the

motor will “ring” 4 times rapidly (accepting the full throttle endpoint). After the
green LED flashes and tones, the red LED on the ESC will blink. At this point,

the full throttle endpoint has been set within the ESC and is now looking for
the full brake endpoint (red LED blinking).

5. Move the throttle trigger to the full brake position and hold full brake. After

a few seconds, the red LED on the ESC will flash and ring 4 times rapidly
(accepting full brake endpoint).

6. After accepting the full brake endpoint, the yellow LED on the ESC will blink.

Relax the trigger to the neutral position. The ESC will now ring 4 times and
flash the yellow LED rapidly to accept the neutral position.

After accepting the neutral position, the ESC will ring twice and all the LEDs will
flash. This is the arming tone and LED indication that the ESC is now ARMED and
the car will respond to throttle inputs from your transmitter.
From this point on, when you connect the batteries and turn the switch on, the
ESC will give the initialization tone and flash. Then the arming tone will ring a
second or two later. If the ESC is programmed for the Auto-LiPo setting, it will
beep the number of cells in your LiPo pack between the initialization tones and
the arming tones. After the arming tone plays, the ESC is ACTIVE and will respond
to throttle application.
If you have problems calibrating your transmitter with the Losi ESC, please
contact the appropriate Horizon Hobby Service Center. Once you are calibrated
and armed, do one last check before going out and experiencing the Losi
brushless difference. Slowly advance the throttle and check the rotation direction
of the motor and the color of the LEDs on the ESC. If the motor is spinning in the
right direction and the GREEN LED is blinking, then you are ready for a test run
before going into the settings of the ESC. If the ESC displays the green LED with
throttle but the wheels spin in the wrong direction, you’ll need to switch any two
of the motor wires (example: switch from red to red and black to black to red to
black and black to red).

Manual Programming
Follow these steps to change settings on the ESC without a computer. Remove
your pinion gear before calibration and manual programming as a safety
precaution.
1. Start with the transmitter ON and the ESC switched OFF and not connected to

the battery.

2. Plug a battery into the ESC. Hold full throttle on the transmitter and turn the

ESC switch ON. After a few seconds you will hear four rings, signaling full
throttle calibration. Continue holding full throttle. After a few more seconds,
you will hear another four rings. After the second group of four rings, relax the
throttle to neutral. If you have successfully entered programming mode, the
ESC will beep twice, pause, and repeat the two beeps.

3. The programming sequence is always presented in sequential order and

always starts with the first setting (Reverse Lockout) within the first section
(Reverse Type). The first beep(s) signifies which section of the programming
you are in and the second beep(s) signifies which setting is waiting for a “yes”
or “no” answer.

As you cycle through the options, you will need to answer “yes” by holding full
throttle or answer “no” by holding full brake until the ESC accepts your answer
by beeping rapidly. Once an answer has been accepted, relax the throttle back
to neutral for the next question. After a “no” answer is accepted, the ESC will
present you with the next option in that section. After a “yes” answer is accepted,
the ESC skips to the first option in the next section.

Technical specifications

sensorless Brushless EsC

On Resistance

0.0003 Ohm

Continuous Current

70A

MAX RPM

80,000

Battery compatilbility

5- to 18-cell NiMH/NiCd, or 2- to 6-cell LiPo

BEC

5.5V to 7V (programmable), 3.5A

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