Futaba S.Bus Servos User Manual

CIU-2

PC-Link
adapter

Battery

S.BUS

servo

program

PC

(USB Port)

PC-Link

S.BUS SERVO USAGE PRECAUTIONS

S.BUS Servo Usage Precautions

CAUTION

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Do not touch the ser vo case immediately after servo opera­tion. You may be burned because the motor and circuits inside the servo

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become hot.

Do not turn the ser vo horn with unreasonable force. If the
servo horn is turned with unreasonable force, the servo may be damaged.

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Do not expose the servo to dust and water. The servo does not
have a waterproof construction. If it gets wet, the servo may not operate

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or the power supply may short circuit.

Do not disassemble or modify the ser vo. The servo has a preci­sion construction. Futaba Corp. will not be responsible for any disassem-

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bly or modication other than those specied by us.

Never connect the battery in reverse. Reverse connection may

cause smoke, re, and damage.

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Do not leave the servo in the locked state. Leaving the servo in
the locked state (state in which enough force is applied that the servo can-

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not move), may cause the generation of smoke, sparks or damage.

Use the servo as an actuator in hobby applications.
will not be responsible if the servo is used in applications other than the above.

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Futaba will not be responsible for damage, etc. caused by the use of
parts other than Genuine Futaba parts.

•Currentconsumption The S.BUS servo is designed to be used with models which
require especially high torque and high speed, the same as conventional digital ser-

vos. For this reason, a large current ows during servo operation. Therefore, decide

the safe number of uses by paying careful attention to the remaining battery capacity.

•Powersupply Use a battery with an ample margin as the power supply. The speci-

ed performance cannot be displayed with a dry cell battery.

•Operating angle Install the servo so that the pushrod does not bind or become
slack even when the servo is operated up to its limit, or set the maximum travel using
the functions (ATV, EPA, etc.) of the digital proportion set or of the servo itself. Refer
to the instruction manual of each product and its setting program for a description of
the digital proportional set and servo setting method.

•Applicablemodels The S.BUS cannot be used with transmitters (servo neutral sig-
nal: 1310µs) manufactured before 1982.

Futaba

•Systemuse The simple wiring S.BUS system can be used by connecting the S.BUS
servo to an S.BUS compatible receiver. In addition, the various operating character­istics as a programmable servo can be changed by connecting the S.BUS servo to a
PC by using a CIU-2 USB serial interface.

Programmable functions of the S.BUS servo

Programmable functions

The operating characteristics can be changed by
installed on a PC by using the

servo to the PC. The set operating characteristics are effective for

S.BUS

USB serial interface to connect the

CIU-2

both conventional radio control systems and the

PC-Link

S.BUS

functions are compatible with only one system)

[Connection using PC-Link]

* A Y-harness or S.BUS hub can also be used instead of the PC-Link adapter.

How to obtain the PC-Link program

programmable devices setting program for various models can be

PC-Link

downloaded for free from our website. Refer to the instruction manual for
each program for the operating instructions for each program.

Settable functions

The following operating characteristics can be set by

[S.BUS servo setting parameter example]

Channel assignment / Servo reverse / Servo type / Soft start / Stop mode
/ Smother / Neutral offset / Speed control / Dead band / Travel adjust /
Boost / Damper / Stretcher, etc.

* The setting parameters differ depending on the model of the S.BUS servo.
*

Refer to the PC-Link instruction manual for other functions and detailed setting contents.

PC-Link

program

system. (Some

program.

S.BUS decoder

S.BUS

Conventional

servo

Conventional

servo

Conventional

servo

S.BUS hub S.BUS hub

S.BUS output

S.BUS

Ch output/
Battery terminal

S.BUS

compatible

receiver

Battery

S.BUS servo

Conventional

servo

2ch 4ch

3ch 5ch

6ch

Ch output/
Battery terminal

Conventional

Receiver

Battery

Conventional

Servo

S.BUS servo

S.BUS servo

About the S.BUS system

What is S.BUS?

Different from conventional radio control systems the
data communication to transmit control signals from a receiver to a servo,
gyro, or other

compatible device.

S.BUS

This data includes commands such as “move the channel 3 servo to 15
degrees, move the channel 5 servo to 30 degrees” to multiple devices. The

devices execute only those commands for their own set channel.

S.BUS

For this reason, it can be used by connecting multiple servos to the same
signal line.

[Connection by S.BUS system]

* Can also be used together with conventional servos.
* Itemsrequired S.BUS receiver, S.BUS servo, S.BUS hub, SBC-1 channel

changer or CIU-2 USB serial interface

[Procedure for use with the S.BUS system]

1. Set the channel at the S.BUS servos.

Set the channel at the S.BUS servos by using an S.BUS compatible
receiver, an SBC-1 channel changer or CIU-2 USB serial interface.

* Refer to the S.BUS compatible receiver, the channel changer or setting pro-

gram instruction manual for the S.BUS servo channel setting method.

2. Connect the servos to an S.BUS compatible receiver.

Connect the servos from the S.BUS port of the S.BUS comp atible
receiver via S.BUS hubs.

S.BUS

system uses

[Connection to conventional receiver]

* Operation is the same as that of a conventional servo.
* Itemsrequired Receiver, S.BUS servo, CIU-2 (if changing the servo settings)

[Operation by conventional radio control]

An

servo connected to a conventional receiver operates as a

S.BUS

conventional servo. The channel becomes the receiver connection point.

*The contents set by programmable function are effective.

[Method of connecting conventional servo to S.BUS]

* Itemsrequired S.BUS receiver, S.BUS decoder, servo, SBC-1 channel changer

or CIU-2 USB serial interface

[Connecting conventional servos to the S.BUS]

Conventional servos can be connected to the
decoder. The servo channel is set at the

* Refer to the S.BUS decoder instruction manual for the S.BUS decoder channel

setting method.

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Phone: [phone], Facsimile: [phone]

1M23N23304 ©FUTABA CORPORATION 2010, 1 (1)

FUTABA CORPORATION

S.BUS

by using an

S.BUS

decoder.

S.BUS