The process of connecting the radio and MULTI-Module to a receiver or model is called 'binding'. The binding process varies between protocols, but there are generally two types:
- Auto Binding Protocols are protocols which bind every time the receiver and radio are powered on. These protocols are typically used on smaller 'toy' models.
- Manual Binding Protocols are protocols which require binding once, typically with a button pressed or jumper installed on the receiver to put it in bind mode. The bind is then stored in the radio and the receiver. These protocols are typically used on hobby-grade receivers and models.
Auto binding protocols will normally bind as soon as the radio and receiver (or model) are turned on or, if the radio is already on, when a model using an auto-binding protocol is selected.
For safety, Bind on Channel is strongly recommend for auto-bind protocols.
By default models configured with auto-binding protocols will attempt to bind either at radio power-on (assuming the last-selected model used an auto-bind protocol), or as soon as the model is selected.
For the radio to initiate binding at power-on or model selection, Bind on Channel must be disabled in Model Setup.
Bind on Channel Disabled
To bind the radio and model:
Step 1: Connect the model's battery
Step 2: Switch on the radio or select the model
Subsequent binds, for example after changing the model's battery, can be initiated by switching the radio off then on, or using the Bind action in the Model Setup menu.
The easiest and safest way to use an auto-binding protocol is to use the Bind on Channel feature of the MULTI-Module.
With Bind on Channel enabled the radio will not automatically bind at power on or model selection, and binding must be manually initiated.
Using Bind on Channel, the MULTI-Module will initiate a bind if channel 16 goes from -100% to +100%.
The recommended way to do this is to configure a logical switch. This is to ensure that binding is only initiated if the throttle is at -100%.
The default bind channel is CH16, but this can be changed to any channel between 5 and 16 by compiling your own MULTI-Module firmware.
Step 1: In the RF setup of the Model Setup page, enable Bind on channel by checking the box.
Enable 'Bind on channel' in Model Setup
Step 2: Configure a logical switch which requires the throttle to be -100% while the momentary switch (SH in this example) is activated, optionally with a brief delay so that the momentary switch has to be held on for the bind to occur.
Bind on Channel Logical Switch with 0.5s Delay
Step 3: Assign the logical switch to CH16 in the mixer.
Logical Switch assigned to CH16
You can now bind your model by activating the momentary switch for at least 0.5s while the throttle is at -100%.
The process will vary from receiver to receiver, but will typically be similar to this:
- 1.Power on the radio
- 2.Hold down the receiver's bind button, or place the bind jumper on the receiver
- 3.Connect power to the receiver
- 4.Initiate binding on the radio
- Serial Mode - Use the Bind action in the Model Setup menu on the radio
- PPM Mode - press the bind button on the module
Once bound, the receiver and radio will re-establish a connection as soon as both are powered on (and the model is selected).
If the receiver does not bind, and the RF Freq. fine tune option is available for the protocol, change the RF Freq. fine tune value to either -40 or 40 and try to bind again. If binding is still unsuccessful, continue to try higher and lower values in steps of plus or minus 40 until the bind succeeds.
RF Freq. fine tune set to 40
Refer to the Frequency Tuning documentation for more information about fine tuning, and to complete the Fine Tuning procedure.