Scorpion Commander Series Brushless Speed Controllers represent one of the best values in the speed controller market today. From the beautiful gold anodized heatsinks, to the unique metal containers that the ESC's are shipped in, everything about Scorpion Speed Controllers shows the company's commitment to quality. These ESC's are manufactured from top quality components, in a state of the art manufacturing facility, and are designed to provide years of trouble free operation.
The V2 models of Scorpion Commander Speed Controllers contain new Helicopter programming that includes Soft-Start and Governor modes. The Soft-Start features 3 different user selectable spool-up times of 10, 15 and 20 seconds. The Governor mode allows for settings of 50, 60, 70, 80, or 90 percent throttle. Another update is a revised LVC feature that is no longer cell dependent. With the new LVC system, any value can be selected from 5.0 to 13.8 volts in 0.2 volt increments.
Also included with the V2 model ESC's is the exclusive Scorpion Wireless Programming System. This system includes a postage stamp size Infrared receiver module and a credit card size wireless remote transmitter. With this programming system, you do not need to unplug any wires or need to drag out a computer or cable to change the settings on your speed controller. The Scorpion Wireless Programming System makes changing your ESC parameters as easy as changing the channel on your TV. The adjustable parameters on every Scorpion ESC include: Battery Type, Cell Count, Low Voltage Cut-off Level, Power Cut-off Type, Current Overload Protection, Braking Level, Acceleration Time Delay, Helicopter or Airplane Mode, Soft Start Mode, Soft Start Duration, Governor Mode, PWM Frequency Selection, Timing Advance and Motor Rotation.
Scorpion Speed Controllers also include all of the ESC parameters clearly labeled on the heatsink assembly. Voltage range, current rating, BEC rating, Ni-XX and Li-Po cell count and input polarity are all clearly marked to avoid any confusion. Scorpion Commander Series Speed Controllers are also backed by a 1 year manufacturers warranty against defects in materials and workmanship, so you can buy with confidence. For a total package of Quality, Performance and Value, use Scorpion Brushless Speed Controllers.
Weight (Without Connectors) ................. 50.2 gm (1.77 oz)
Max Continuous Current ..................................... 90 Amps
Operating Voltage Range ............................... 6 to 15 Volts
Max BEC Output ...................................... 4 Amps @ 6.0 V
On Resistance .............................................. 1.17 mOhms
Size ....................... 76 x 30 x 12 mm (2.99 x 1.18 x 0.47 in)
This speed controller uses a Linear type voltage regulator in the BEC circuit that puts out 6.0 volts with no load applied. Some servos or gyros will only run properly on 5.0 volts. For these devices, you will need to use a step-down regulator between your radio receiver and the device.
The current rating on the BEC in this speed controller is based on using a 2-cell Li-Po battery input (7.4 volts). If you run the ESC on 3 Li-Po cells (11.1 volts), the current rating needs to be de-rated by 50%. If the ESC is run on 4 Li-Po cells (14.8 volts), the BEC circuit needs to be disabled and a seperate switching type BEC circuit should be used.
You can disable the output of the internal BEC by pulling the red wire out of the control lead connector and taping it up so that it does not short out against anything. You can also use a short 22ga servo extension that has the red wire cut and plug it onto the control lead so you do not have to modify the ESC. Failure to disable the BEC circuit when running on a 4-cell Li-Po battery will result in over-heating of the BEC circuit and can lead to failure of the BEC circuit and the Speed Controller.
We have several Switching Type BEC Circuits available on our website. These can be viewed by Clicking Here.