The receiver connector connects to CH2. The polarity
matches Sanwa, KO and Futaba receivers. Check the
polarity for other brands of receivers before plugging in.
Yokomo Speed Controller (ESC) SCR-BR Instruction Manual
7.2V
7.4V
6.6V
AUTO
Initial setting voltage × 70%
Ni-cd / Ni-MH
5.4V
-
-
Li-PO
-
6.5V
-
Li-Fe
-
-
4.8V
Neutral
Forward
Full Throttle
Brake
Full Brake
Reverse
Full Reverse
LED lamp
Yellow
Red blink
Red
Red slow blink
Red
Red slow blink
Red
Battery
Volt
1. Input voltage: 7.2V to 8.4V (Ni-cd / Ni-MH), 7.4V (Li-Po), 6.6V (Li-Fe)
１．Number of Ni-cd / Ni-MH cells 6 to 7 (7.2V / 8.4V)
２．Number of Li-Po cells: 2 (7.4V) ３．Number of Li-Fe cells: 2 (6.6V)
2. Output voltage: Forward continuous maximum current 70A Instantaneous maximum current 500A / 10 seconds, Reverse
continuous maximum current 100A (FET specifi ed)
Steady current (forward): 5 minutes / 70A, 30 seconds / 80A, 1 second / 106A
Steady current (backward): 5 minutes / 35A, 30 seconds / 40A, 1 second / 53A
3. Maximum output current: 504w BEC 5V 1A (maximum 1.5A)
4. Size / Weight: 3.4mm x 34.5mm x 27.5mm / 50g
5. Available turns: 15 turns or more [
7.2V (Ni-MH 6 cells)], 17 turns or more [8.4V (Ni-MH 7 cells)]
6. Pulse frequency: 1KHz
* Do not operate the throttle on the transmitter until the neutral setting is completed.
* Depending on the transmitter manufacturer, forward and reverse may be reversed when the neutral setting is made. In that
case, change the slot reverse switch of the transmitter from normal to reverse setting.
Connect the battery
a n d m o t o r t o t h e
ESC.
Turn on the power
i n t h e o r d e r o f
transmitter to ESC.
E S C s o u n d s a n d
the neutral setting
starts automatically.
When the neutral setting
is complete, the ESC will
make another sound.
When the motor temperature reaches 98 ℃ ( ± 3-5 ℃ )
ESC will intermittently repeats on and off .
※ In this case, stop driving immediately and turn off the
ESC switch.
１．After driving, ESC is hot around heatsink and motor case, so don't touch it.
２．Always use connectors and wires with good current ratings. Replace the original ESC connector, or extend the connecting
wire to make adjustments to avoid poor connector contact, melting due to overheating, and abnormal power cutoff .
３．Connect the battery just before driving and disconnect it after driving. Also, do not solder the battery directly to ESC, use
the appropriate connector in between.
４．Always connect a power source with the correct voltage and polarity to the ESC. Using power sources with different
voltages or polarities can damage the ESC. Also, do not solder the ESC wire directly to the battery, be sure to use a
connector in between.
■ SPEC
■ Battery voltage automatic cutoff setting
■ ESC Overheat protector
■ ESC wiring diagram
■ Caution
■ Throttle Neutral setting
1
2
3
4
※ Please set in the ESC setting.
Initial Settings are installed as
"
※
" marked on Mode Parameter table.
