T-27 Tucano 20cc 1.2 2022
34
The electronic controller is supplied with landing gear doors sequencer in version 2, with the same opening
and closing routine necessary for the T-27 Tucano (see pages 36 and
39). It has 2 servo access doors via standard
3-way servo plugs (+ / - / signal) and 3 retracts access ports (main and front) via 2-way JST plugs (+ and -).
The controller requires a battery to power the retracts system. The manufacturer recommends using a good
quality LiPo 2S 7.4V battery. The approximate consumption of the retractable system is 75mAh per
retract/extend cycle. Thus, a 1500mAh battery is capable of retracting and extending the retractable fully 20
times, approximately, under normal operating conditions.
VERY IMPORTANT: Landing gear door servos should be high voltage (7,4V). Check the proper voltage for both
the controller and the servos used.
It is necessary to connect the electronic controller to a designated receiver channel to control the landing
gear position (extended or retracted) via standard 3-way servo plug (+ / - / signal). The channel assigned to the
retracts command must be set to 100% travel (EPA or ATV) in both positions.
Above: JP ER-120 V2 controller showing retracts connections (left). Power wire (red and black) retracts radio
signal wire (yellow, red and brown) (right).
Above: JP ER-150 V2 electronic controller installation diagram.
BE SURE TO PLUG THE BATTERY TO THE CONTROLLER IN CORRECT POLARITY (+ RED WIRE AND
–
BLACK
WIRE). IF POLARITY IS INVERTED THE CONTROLLER WILL BURN AND BE UNUSABLE, AND THE PRODUCT
WARRANTY WILL BE LOST. USE A RELIABLE JST PLUG IN YOUR BATTERY WITH ADEQUATE FITTING WITH NO
POSSIBILITY OF BEING PLUGGED INVERTED. DO NOT PLUG THE RETRACTS DIRECTLY IN THE RECEIVER
WITHOUT CONNECTION TO THE CONTROLLER, OR THE ELECTRIC MOTORS MAY BURN OUT, VOIDING THE
PRODUCT WARRANTY.
