User guide

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The RevLimit will pass control back to the throttle channel (controlled by the

throttle curves) if any of the following occurs:

1. The throttle stick (output) is below 25%.

2. The Gear channel output is less than 5% (travel adjust or limiter setting).

3. The rpm sensor fails.

QuickConnect™ with Brownout Detection

The remote receivers now included with the AR7110/AR7110R feature QuickCo-

nnect with Brownout Detection (Brownout Detection not available with DSMX).

Should a power interruption occur (brownout), the system will reconnect imme-

diately when power is restored and the LEDs on each connected receiver will ﬂash

indicating a brownout (power interruption) has occurred (DSM2 only). Brownouts

can be caused by an inadequate power supply (weak battery or regulator), a loose

connector, a bad switch, an inadequate BEC when using an electronic speed

controller, etc. Brownouts occur when the receiver voltage drops below 3.2 volts

thus interrupting control as the servos and receiver require a minimum of 3.2 volts

to operate.

How Brownout Detection Works

When the receiver voltage drops below 3.2 volts the system drops out (ceases to

operate). When power is restored, the receivers will immediately attempt to reco-

nnect to the last two frequencies they were connected to. If the two frequencies are

present (the transmitter was left on) the system reconnects, typically in about 4ms.

The receivers will then blink indicating a brownout has occurred (DSM2 only). If

at any time the receiver is turned off then back on and the transmitter is not turned

off, the receivers will blink as a power interruption was induced by turning off the

power to the receiver (DSM2 only). In fact this simple test (turning the receiver

off then on) will allow you to determine if your system’s brownout detection is

functioning (DSM2 only).

NOTICE: If a brownout occurs in-ﬂight it is vital that the cause of the brownout be

determined and corrected. QuickConnect and Brownout Detection are designed to

allow you to safely ﬂy through most short duration power interruptions. However,

the root cause of these interruptions must be corrected before the next ﬂight to

prevent catastrophic safety issues.