The PowerBox Royal SR2 - professional airborne electronics for the ambitious pilot!

Features : 

26 channels

High-performance battery backer with high continuous load capacity

Four P²-BUS outputs with full telemetry support for servos

2.4" TFT screen, legible in sunlight

Bi-lingual menu system

Consistent duplication of all power electronics

Redundant electronic switch

Servo matching for all 26 outputs

Auto matching function

Two independent door sequencers with Setup Assistant

The latest integrated iGyro technology, using the iGyro SAT as gyro sensor

Twelve independent gyro outputs for: 4x aileron, 4x elevator, 4x rudder

Individual gain control for all twelve gyro outputs

Special regulatory algorithm for fixed-wing models

System detects all transmitter mixers

Four selectable output voltages: 6.0 V, 7.4 V, 7.8 V or unregulated

Two different voltage levels, separately adjustable for left and right side Graphic menu diagrams ensure ultra-simple programming

Fast basic setup procedure using the sophisticated Assistant

Optional GPS III for speed-dependent gyro compensation

Telemetry data for PowerBox P²BUS, Futaba S.BUS2, Jeti Ex-BUS, Spektrum SRXL2, Multiplex M-Link, JR DMSS and Graupner HoTT

Transmission of battery, receiver and GPS data

Virtually all features can be controlled from PowerBox and Jeti transmitters

Selectable servo frame rate: 10ms, 12ms, 14ms, 16ms, 18ms

Servo feedback current suppression

Latest 32-bit micro-processor for precise, high-speed signal processing

High-performance machined heat-sink for optimised heat diffusion

Machined, anodised aluminium switch and screen case

Compact dimension

Technical Data : 

Operating voltage 4.0V - 9.0V

Power supply 2S LiPo, 2S LiIon, 2S LiFePo, 5S NiCd/NiMH

Current drain Power-on state 300mA (with TFT)

Current drain Standby 60µA

Maximum load current Peak 4 x 20A

Drop-out voltage 0.3V

Output voltage 6.0V, 7.4V, 7.8V, unregulated

Signal input serial

Supported RC systems PowerBox, Futaba, MPX, Jeti, Spektrum, JR, Graupne

Receiver redundancy SRS

Channels 26

Servo sockets 26

Programmable servo outputs 26

Servo signal resolution 0.5µs

Signal frame rate 10ms, 12ms, 14ms, 16ms, 18ms

Gyro regulation Heading- and Normalmode

Gyro sensor type extern iGyro SAT

Number of sensor axes 12

Screen TFT 320x240 Pixel

Integral door sequencer 2x

Supported telemetry systems P²BUS, S.BUS2, EX-Tele, SRXL2, M-Link, Hott, X.BUS

Dimensions 136 x 82 x 18 mm

Weight 162g

Weight Sensor Switch 15g

Weight of LCD screen 34g

Temperature range -30°C to +105°C

Set contents : 

PowerBox Royal SR2

TFT-Display

SensorSwitch

2 patch-leads 180 mm

4 retaining screws

4 rubber grommets / brass spacer sleeves

4 brackets/covers

Operating instructions in German and English

Product description : 

The PowerBox Royal SR2 once again sets new technical standards, offering a convincing array of features which until now have been the exclusive preserve of professional aviation. P² servo bus, 26 channels, 12-axis gyro, two pairs of regulators and a full-color screen - these are just a few of the technical refinements which the PowerBox Royal SR2 offers the ambitious pilot.

The PowerBox Royal SR2 is housed in a high-quality, extremely compact case with integral aluminum heat-sink. The large cooling area dissipates the heat generated by the four regulators, which are wired in pairs to provide energy for all 26 servos. Both regulator pairs can be set to any of four different voltages. This makes it possible to combine standard 6V servos with high-performance HV types, without additional regulator modules.

For the first time all the data relating to all the model’s servos can be monitored, and their parameters adjusted¹ from the transmitter. This development has been made possible by the introduction of our P²-BUS protocol, whose aim was to maintain complete control of all the components in the model. The PowerBox Royal SR2 has four fully independent P²-BUS interfaces, which can be set to two different voltage levels.

These interfaces can be used to connect servos with an integral P²-BUS, or conventional servos with the new P²-ServoBridge. The P²-ServoBridge is an adapter which converts the P²-BUS into a PWM signal for normal servos; it also has an integral infinitely variable electronic fuse.

This has allowed us to implement a bus system in the model which is significantly superior to standard PWM wiring in respect of security and performance.

All data relating to the receivers and power supply system are displayed on the full-color screen, and all settings are available in a carefully structured, bi-lingual menu which is easily understood.

The TFT screen is also housed in a high-quality aluminum case, and is clearly legible even in full sunshine.

Connecting the optional iGyro SAT converts the PowerBox Royal SR2 into a 12-axis gyro which has few equals in terms of functionality. The gyro can be set up to suit even the most complicated of models in just a few minutes. After this, the correct gyro gain is set from the transmitter in a test-flight using a rotary control. A whole series of supplementary Expert settings is available to allow the pilot to fine-tune the gyro effect to suit his unique individual preferences.

Naturally a GPS III sensor can also be connected to the PowerBox Royal SR2. This unit provides automatic gyro gain adjustment in relation to airspeed.

The PowerBox Royal SR2’s 26 outputs are provided with an ample power supply, and they can also be assigned individually to various functions. All outputs can be allocated direct and gyro channels as well as door sequencer functions.

The PowerBox Royal SR2 has an automatic servo-matching function which is a new development. This system makes it possible to match a maximum of three servos to each other automatically in just a few seconds using five points. All you have to do is select the servos which are inter-connected mechanically, and start the automatic procedure.

Of course, each output can also be adjusted manually using the servo-matching function and the graphic-based menu.

The final aspect of the system is its pair of integrated door sequencers. In addition to a retractable undercarriage, it is possible - for example - to implement a latched opening canopy control system without additional devices. The first door sequencer can be set up in just a few minutes with the help of a Setup Assistant, and three modes are available.

Additional special settings are equally easy to set up thanks to the on-screen diagrams in which the entire timed sequence can be seen at a glance.

The PowerBox Royal SR2 can be set up and controlled virtually completely² from PowerBox and Jeti transmitters! Telemetry for every aspect of battery and receiver data is available for all supported systems. If a GPS III is connected to the unit, GPS data are also available - in so far as your radio control system supports this.

  ¹ The P² servo bus system works with all radio control systems - as was the case with the previous PowerBox Royal SRS. It is even possible to connect the P²-ServoBridge directly to the data port of the PowerBox Royal SR2 for adjustment. This eliminates the need for an additional USB or Bluetooth adapter in order to adjust the channel assignment or the cut-off current.

P²-BUS servos and the P²-ServoBridge can be adjusted from the transmitter, but only in conjunction with PowerBox transmitters. The telemetry data from the individual servos can also only be transferred if you are using the high-performance telemetry system offered by the Core and Atom radio systems.

² With the exception of the sequencer and the Setup Assistant

Download the Manual here