Connection, Set up, Led display – Futaba MC950CR User Manual

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CONNECTION

MOT.A to motor A(1)

MOT.B to motor B(2)

MOT.C to motor C(3)

Positive (+B) battery

Receiver connector
Connects to the receiver
throttle channel (CH2).

Sensor conector
Connect the sensor cable to
the MC950CR and the motor.
(drivable sensor motor)

Power switch

Push button switch

LED

Terminal cover

Fan conector
Connect the fan cable.
(fan is optional part)

Negative (-B) battery

Negative terminal mark

POWER CAPACITOR

Always install Power Capacitor to suppress battery noise.
Also, Power Capacitor stores battery energy and supplies
this to the motor additionally when extra power is
required.

[INSTALLATION]

See the pictures for the example of installation.

1

Remove the terminal cover from the MC950CR.

2

Use the included heat shrink tube to isolate the pins of the

Power Capacitor. This will also make it easier to indicate the
polarity of the Power Capacitor. Place the red heat shrink tube
on the positive terminal and the black heat shrink tube on the
negative terminal.

3

The Power Capacitor needs to be soldered to the speed control

between + (positive = M.B.+ ) and - (negative = BAT.-).

4

Attach the terminal cover to the MC950CR.

[Wiring Precautions]

• Always set the MC950CR power switch to the OFF position

before performing any wiring.

• When stripping the covering of the silicon cord to the length

needed for soldering, be sure not to cut the center conductor with
the cutter or nippers.

• Refer to the diagram above and check the polarity before

performing wiring.

• When soldering to the terminals of the MC950CR, remove the

terminal cover. (After soldering, re-install the terminal cover.)

Heat shrink tube
(positive = red / negative = black)

Never reverse the capacitor and wires polarity.

The capacitor may break or the capacitor electrolyte may leak.
Reverse connection will immediately destroy the amp.

Never use solder containing acid flux.

Use solder containing rosin flux only. Do not inhale the solder
vapours. This might damage health.

Vibrationproof the capacitor by mounting it with thick
double sided tape.

If the pin of the capacitor is broken, it may short-circuit with the pin
between + and - terminal of the speed control.

Be careful when soldering to the tags on the speed control;
don’t overheat the tags with your soldering iron and take
great care to avoid short-circuits between two of the three
tags on the speed control.

Such a short-circuit would destroy the speed control.

Terminal

cover

(-;negative)

(+;positive)

(-;negative)

(+;positive)

N

N

N

In set-up mode MC950CR stores every step when you press the Set-up button. All the settings are stored in the unit even when the
speed control is subsequently disconnected from the battery. Set up the following basic functions on your transmitter (if present):

• High ATV, EPA (throttle travel) - maximum Low ATV, EPA, ATL (brake travel) - maximum
• EXP, EXPO (exponential) - start with 0
• SUB trim (neutral trim) - center TH trim - center
• Throttle reverse (servo reverse) - any setting; must not be changed after completion of set-up procedure.
• Non-proportional stick travel is possible (2/3 throttle - 1/3 brake)

If your transmitter does not feature these set-up functions, it is already in “basic set-up” mode.

Remove the motor pinion, or ensure in some other way that the wheels of the model are free to rotate.

• The SET LED flashes green, to indicate that the unit is in set-up mode.

• This completes the set-up procedure.

Hold the SET button pressed in for at least 3 seconds using the small screwdriver supplied.

MC950CR

SET button operation

LED

Neutral

point

setting

High

point

setting

Brake MAX

point

setting

• Neutral state

SET UP

• Full brake

state

• Full high

state

• Press SET button

once.

• Press SET button

once.

• Press SET button

once.

LED goes out

and the

motor beeps.

flashes blue two times
and the motor beeps.

LED goes out

flashes blue three times
and the motor beeps.

LED goes out

* Since the data is read at the end of setting

of all points, the points cannot be set
independently.

* If the amp power was turned off during

setting, the setting points cannot be
memorized. (The previous settings are
retained.)

* The confirmation beep sounds only when

the motor was connected.

* If you make a mistake during the set-up

procedure, and setting is not completed.:
switch MC950CR off and start again from
the first step.

* Check the operation by the following "LED

DISPLAY." When throttle operation and
the CHECKER LED DISPLAY are not
correct, set up again from the first step.

Transmitter throttle

operation

3

4

5

• Switch the transmitter on.
• Set the transmitter throttle to neutral, and then switch the speed control on.

* Depending on the neutral position of the throttle, the red and green LED will blink simultaneously (orange) and a beeping sound will be repeated.

(Alarm: Waiting for neutral data)

Turn on the power in following order.

1

2

©FUTABA CORPORATION

2009,1

Protection Circuits

Heat protection: After the FET overheating is detected, a protection circuit operation alarm is activated, and the output to the motor
is gradually lowered, and then, output to the motor is cut. The protection circuit is automatically reset by a drop in the FET
temperature.
Low battery protection: When the power supply voltage drops, the output current to the motor is limited and supply voltage to the
receiver is ensured. When the power supply voltage drops to the set voltage (initial setting 2.7V), a protection circuit operation alarm
is activated and output to the motor is cut. The protection circuit is automatically reset by recovery of the power supply voltage.

Reverse Cancelling function (Brake operation only)

While pressing the push button switch, set the power switch to ON. flashes purple and the motor beeps. (5 times)

*When desired, you can enable the cancelled reverse function by repeating the operation shown above. (The reverse function is switched alternately.)

LED DISPLAY

• The MC950CR operating state can be checked with the LED as shown below.

• After operating the throttle trigger (stick) of a transmitter to the brake (reverse) side, if it is again operated to the brake side

once it returns to a neutral position, MC950CR will carry out reverse operation.

On (green)

High

point

Brake MAX

point

Brake

On (red)

*Becomes brighter nearer the

MAX point.

On (blue)

Mode: Brake operation only

On (purple)

Mode: Reverse operation

On (red)

Mode: Robot

(Forward neutral reverse)

Reverse

On (yellow)

*Becomes brighter nearer the

MAX point.

Brake or Reverse

Foward

On (green)

*Becomes brighter nearer the high

point.

Neutral

point

LED

Operation

flashes red and the motor beeps.

*Not used with PCM receivers.
*When the transmitter if OFF, this function is not performed in environments such

that the servo operates erroneously

LED

* The confirmation beep sounds only when the motor connected.

flashes blue and the motor beeps.

flashes yellow

flashes red and the motor beeps.

(Amp power left on alarm)

When the transmitter power

was turned off first.

*When the switch of speed control is turned ON ahead of a

transmitter.

*When the neutral position of a transmitter differs from the last setup.

(Alarm when waiting for the data of a neutral point)

Cause

(Protection circuit operation)

When a protection circuit operates.

(Data error alarm)

Displayed when an abnormal signal was input.

FUTABA CORPORATION Makuhari Techno Garden Bldg., B6F 1-3 Nakase, Mihama-ku, Chiba 261-8555, Japan Phone: (043) 296-5119 Facsimile: (043) 296-5124

On (white)

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