Rx61-2 Instructions (v6.0.3)


PRODUCT: Rx61


Outputs

Channels

Channels

Tx21

1. DEFAULT SETUP

Item

Setting Details
Purpose:

Rx61-2 Train with Tx21 transmitter

Red wire positive (+)
Black wire negative (-)

Battery 3-16v
Observe polarities
H1 output
Brown wires

Motor
Speed knob (Ch1)

Integrated forward/reverse ESC for brushed motors
Center off
P1 output

Servo
Bind button (Ch5)

Slow-motion servo for coupling
Press bind button to open coupling
Release bind button to close coupling

P2 output

Front Light
(auto)

Led needs current limiting resistor

P3 output

Rear Light
(auto)

Led needs current limiting resistor

P4 output
On/Off
Direction switch (Ch3)

Item being switched needs current limiting resistor
Switch right for ON (left OFF)

P5 output
On/Off
Direction switch (Ch3)

Item being switched needs current limiting resistor
Switch left for ON (right OFF)

P6 output
On/Off
Bind button (Ch5)

Item being switched needs current limiting resistor
ON while button pressed, OFF when released (momentary)

P7 output
On/Off
Bind button (Ch5)

Item being switched needs current limiting resistor
Toggle ON/OFF each time button is pressed (latching)

P8 output
IR4

Battery voltage telemetry
Infrared led needs current limiting resistor

L input

Auto-detect

Monitors single cell lipo when used with a voltage booster

Arming:

Enabled Motor control knob to center position (off)

LVC Enabled LVC=Low Voltage Cutoff
Led 5-flash if triggered
Stop and charge battery

Inactivity Sleep Enabled Invoked after 1hour
Switch off and on to restart


2. EXAMPLE CONNECTIONS:


Motor (H1 output)

Servo (P1)

Led (P8)

Fet

Lipo booster (L pad)

'P' outputs are 3v when on and 0v when off. Led's need resistors to limit current to 20mA but high brightness led's allow a lower current (eg: 2-5mA). Google will reveal how to select resistor values but 220-470ohms will be safe starting values.

Servos can be powered direct from 1S lipo but 2S is normally too high. A 4 or 5v regulator is usually needed.

The 'Fet' example is how to drive higher currents with a P output. The fet needs to be 'logic-level N-channel' and have low Rds on resistance (eg: <100 milli-ohms) with a 3v Gate drive voltage. The Vds voltage must exceed whatever positive supply you are using (20v and higher is common). The current rating must exceed what ever current you are driving (the higher the 'Amps' rating the better).

The 'L' pad is intended to monitor a single cell lipo when used with a voltage booster. This allows the receiver and motor to be powered with a boosted voltage and benefit from the convenience of a single lipo. The receiver will auto-detect when a lipo is connected. It will cut power to the motor when the voltage falls to 3v (LVC). The L pad is not intended for use when powering a receiver direct from a single lipo.



3. BINDING

Bind once (not necessary if Rx was supplied pre-bound):
1. Switch Rx on and wait ~20s until led flickers fast.
2. Switch Tx on in bind mode.
3. Rx led should flash slowly; wait for it to go solid.
Change distance between Tx/Rx if binding does not work.




4. LED:
Led On = perfect reception (real-time indicator).
1 flash = Scanning (~2sec between flashes; no signal or not bound if never stops).
5 flash = LVC/Brownout (voltage went too low; check battery/motor load).

5. FAILSAFE:
The motor output is not active on startup and while scanning for a signal.
The motor output 'holds' last known settings on short signal losses (<1sec) and then slows to a stop over 3 seconds.

6. OTHER:
This receiver has other features that are not described.
These are changed using a technique called 'programming':

Version v6.0.3

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