Spektrum SPMAR12200 User Manual

Page 19

QuickConnect™ With Brownout Detection

(Brownout Detection not available with DSMX)

The Cockpit features QuickConnect with Brownout Detection (Brownout Detection

not available with DSMX). Should a power interruption occur (brownout), the

system reconnects immediately when power is restored and the LEDs on each

receiver 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 voltage to the Cockpit drops

below 3.2 volts, interrupting control as the servos and this unit require a minimum

of 3.2 volts to operate.
How QuickConnect Works

When the voltage drops below 3.2 volts, the system drops out (ceases to operate).
When power is restored, the Cockpit immediately attempts to reconnect. If the

transmitter was left powered on, the system reconnects, typically in about 4ms. The

receivers then blink, indicating a brownout has occurred (DSM2 Only). If at any time

the receiver is powered off then back on and the transmitter is not powered off, the

receivers will blink as a power interruption was induced by powering off the Cockpit

(DSM2 Only).

CAUTON: If a brownout occurs in-flight, it is vital that you determine the

cause of the brownout and correct it. QuickConnect and Brownout Detection 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.

Tips for Getting the Most from your Cockpit System

Flight Log

The Flight Log can be used to test the battery system using the built-in voltmeter

and applying a load to the servos/control surfaces. The voltage should never drop

below the rated voltage (5.9 volts) even under a heavy load.
When the system is first installed, an advanced range check should be performed.

If any receiver is performing less than optimal (higher than normal fades), that

receiver should be repositioned and the advanced range test repeated until low

fades are recorded.
During first flights with sophisticated airplanes (significant conductive materials

onboard, many high-current draw servos, carbon construction, etc.), it’s good

practice to keep your first flight in close, then confirm the RF link performance using

the Flight Log to determine the performance of each attached receiver. Extend the

distance on subsequent flights and record the Flight Log data, confirming that all

systems are performing properly.
Storing Your System

If the system will be stored for more than two weeks, it’s important that the battery

be disconnected from the Spektrum Cockpit.

CAUTION: When a battery is connected to the Spektrum Cockpit, a low current

drain of less than 1mA occurs even when powered off using the SensorSwitch.

If the system is going to be stored for any length of time, always disconnect the

battery from the Spektrum Cockpit to prevent over discharge and damage to the

LiPo battery.