FrSky CPPM User manual
1Instru
c
tionManualofFrSky CPPM/SBUSDecoder
FrSky Electronic Co., Ltd
Frsky CPPM/SBUS Decoder
Instruction Manual
NOTICE: All instructions, warranties and other collateral documents are subject to change at the sole
discretion of FrSky Electronic Co., Ltd. For further information please visit https://www.FrSky-rc.com.
Thank you for purchase FrSky CPPM/SBUS Decoder. This product can be used as CPPM/SBUS
decoder to convert CPPM/SBUS signal for conventional servo (other than use CPPM/SBUS compatible
servo directly) with CPPM/SBUS system. In order to fully enjoy benefits of this system, please, carefully
read the instruction and set up the devices as described below.
Specifications
NOTE: DO NOT plug in the power HIGHER than the connected decoder/servo operating voltage.
Otherwise injury or damage may occur.
ChannelSetting
Before installing the CPPM/SBUS decoder to the fuselage, set each channel at each servo connector.
Use FrSky SCC (Servo Channel Changer), FrSky CPPM/SBUS receiver (TFR8SB etc.), Futaba SBC-1,
Futaba SBUS receiver (R6208SB etc.) to set.
It is strongly recommended to use FrSky SCC to do channel setting.
LBefore channel setting, make sure NO servo is connected. There is the danger of erroneous
operation or damage.
Channel setting by FrSky Servo Channel Changer (Strongly recommended)
a. Connect the Signal portof the decoderto the servo connection port of the FrSky SCC.
b. Connect the battery to the battery connection port of the FrSky SCC.
c. Quickly press the decoder’s setting buttonand select the servo connection port at which
channel is to be set.
Each time the button is pressed, the channel No. of selected servo connection port will be
displayed by FrSky SCC via Current Servo Channel No. (See SCC’s instruction).
d. Use SCC rotate switchset the “Set-To” to the channel you want and push rotate to confirm
(See SCC’s instruction).
e. Switch to “SET” and push the rotate switch to confirm channel setting (See SCC’s instruction).
f. To set the channel of other servo connection ports, quickly press and release the decoder’s
setting button to choose and repeat step d. and e.
Channel setting by Futaba SBC-1
a. Connect the Signal portof the decoder to the servo connection port of the Futaba SBC-1.
b. Connect the battery to the battery connection port of the Futaba SBC-1.
c. Quickly press the decoder’s setting button and select the servo connection port at which
channel is to be set.
d. Set the Futaba SBC-1channel selector switch to the channel you want to set.
e. Hold down the setting switch (about 1 second).
f. To set the channel of other servo connection ports, quickly press and release the setting
button and repeat steps d. and e.
LConnect the servo and battery connector in
the correct polarity. Connecting the power +
and – polarities in reverse by mistake may
cause smoke, fire, and damage.
LDo not connect any other device (gyro,
battery, etc.) other than servo to the servo
connection port of decoder. There is the
danger of erroneous operation or damage.
LDo not disassemble or modify the
product. FrSky will not be responsible
for disassembly or modification other
than those specified by us.
FrSky Electronic Co., Ltd will not be
responsible for damage caused by
combination with other than FrSky
Genuine parts.
Operating Voltage: DC 4-10V
Operating temperature range: -10 to 5
!WARNING
The input voltage should match the servo’s proper operating condition. There is the danger of
erroneous operation or damage.
2Instru
c
tionManualofFrSky CPPM/SBUSDecoder
Channel setting by Futaba SBUS compatible receiver
•Channel setting by FrSky TFR8SB
a. Turn on Frsky CPPM/SBUS decoder, quickly press the decoder’s setting button and select
the servo connection port at which channel is to be set.
b. Turn off the decoder.
c. Connect the receiver’sSBUS port’s signal pin and RSSI port’s signal pin via provided
cable.
d. Connect the Signal portof the decoder to the conventional system output connector (1to 8)
corresponding to the channel you want to set.
Channel setting
Output connector Mode A Mode B
1 1 9
2 2 10
3 3 11
4 4 12
5 5 13
6 6 14
7 7 15
8 8 16
e. Turn on the receiver
! At once when turning on the receiver, the channel setting is completed in mode A.
(To switch to mode B, press the F/S button until the red and green LED starts to blink
simultaneously. The channel setting is completed in mode B)
! The LED corresponding to the setting mode blinks.
Mode A: Red blinks 3times
Mode B: Green blinks 3times.
f. Turn off the receiver.
•Channel setting by Futaba SBUS receiver (R6208SB etc.)
Please refer to the product specifications.
Installation
Connection
a. Connect the Signal portof the decoder to the receiver CPPM/SBUS connection port or
SBUS hub.
b. Connect a conventional servo or a digital servo to the servo connection port of the decoder.
¾When an SBUS servo was connected, that servo will operate as a conventional servo.
However, it operates on the channel set at the servo connection port of the decoder
instead of the channel set at the servo itself.
Decoder’s LED status
CPPM SBUS
Power on Last selected servo port Last selected servo port
Normal working Flashing when channel has signal All flashing
Flashing when channel has normal failsafe
Lost signal OFF with “No Pulse” failsafe All flashing
Cautions
LWhen use decoder with V8 series CPPM receiver. DO NOTuse more than6channels of
CPPM signal. Otherwisedamage may occur.
LThe factory default firmware ofD series (Two-Way) CPPM receiveris21ms for CPPM. If want to
use more than 6 channels, please download and flash with 27ms firmwarefrom www.FrSky-
RC.com. The V8 seriesreceiver CANNOT be upgrade with this firmware.
LBefore channel setting, BE SURE there is NO servo connected. There is the danger of
erroneous operation or damage.
LThe decoder’s output PWM frequency is automatically match with the input CPPM/SBUS
signal frequency, make sure the proper servo is connected. Do NOT use conventional servo
with SBUS High Speed mode and/or CPPM mode when frame length is shorter than
14ms.There is the danger of erroneous operation or damage.
LWith Digital servo, CPPM frame length MUST NOT larger than 30ms; in case of conventional
servo, CPPM frame length MUST NOT larger than 22ms. Otherwise erroneous operation or
damage may occur.
LBefore take-off, BE SURE there is no redundantservo connects to decoder. There is the danger
of erroneous operation or damage.
LDO NOT switch receiver High Speed/Normal Speed mode when decoder is connected.
LDo not fly until inspection is complete.
ºFutaba is trade name and/or trademark of their respective company and is not products of FrSky
Electronic Co., Ltd. FrSky Electronic Co., Ltd
Tel: (86) 0510-85187718 Fax: (86) 0510-85187728
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