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the receiver regulator going below 4.75 volts is the input voltage to the
receiver regulator has dropped below 5.35 volts. This means the input
voltage on the Deans connectors is probably below 5.8 volts for some
reason.
Optional Failsafe-switch
The PowerExpander Competition 12 supports the addition of a failsafe
switch (optional package). The PowerExpander Competition 12
supports 5-cell NiCd/NiMH or 2-cell A123 battery packs. When using
the failsafe-switch, the switch lead is plugged into the input marked
“Sw” near the top left of the servo connections as shown on the
reference drawing.
Smart-Fly can supply two types of failsafe switches. First is the
standard slide switch that most people are familiar with. This is a small
slide switch with out a charge jack. The second failsafe-switch is the
Pin & Flag switch, where a pin, with a flag on it, is inserted into the
switch to turn the system off. To fly, the pin is pulled out of the switch.
The advantage of the Pin & Flag switch is that the system cannot
accidentally be turned off, as can be the case with a slide switch. The
failsafe switch lead can be extended using a standard Futaba extension.
The PowerExpander Competition 12 also supports charging the
batteries through the two charge connections denoted by the “Chg”
next to the battery input ports, one on the top of each servo output rail
as shown on the reference drawing. The optional failsafe-switch
package includes two charge leads and two Ernst charge jack mounts.
The charge leads have a Futaba male on one end and a JR male on the
other end. You may use these by plugging either end into the
PowerExpander Competition 12 and the other end into the charge jack
holder.
The charge jacks on the PowerExpander Competition 12 can also be
used to connect to a battery meter. One thing to keep in mind when
using a battery meter and the failsafe-switch is that the jacks are not
switched off when the unit is off so the battery meter will continue to
draw power even when the unit is turned off.
Ignition Cutoff
A separate manual is supplied to instruct you on the use of the Igntion
Cutoff. The Cutoff channel is determined by using the six-inch jumper
supplied. The Futaba male end should be plugged into the port marked
“IC”. The other side of the jumper can be inserted in any servo output
channel or it can be connected directly to the receiver, for example, on
channel nine of a nine-channel receiver.
Additional information and technical help can be found at
www.Smart-Fly.com
Quest Engineering & Development, Inc.
6125 South Ash Avenue, Suite B-8
Tempe, AZ 85283
Ph: (480) 460-2652 Fax: (480) 460-2653
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Thank you for purchasing the Smart-Fly
PowerExpander Competition 12!
This manual takes you through the installation and operation of the
Smart-Fly PowerExpander Competition 12. Features of the
PowerExpander Competition 12 are:
•
For use on any size plane
•
Light weight, 1.9oz, 54g
•
Compact design, footprint is 3.0” x 4.5”
•
Uses 5-cell NiCd/NiMH or 2-cell A123 battery packs
•
Inputs protect against cell failure or power shorts
•
Filtered and regulated 5.0V power to the receiver
•
LED power indicators for input and receiver power
•
Fully buffered outputs on all channels
•
Full filtration of all signals in and out of the unit
•
Integrated Ignition Cutoff
•
Can be used with optional failsafe switch