Sorry, the Scoota is now no longer available. We ceased production at the end of 2005. This page is here for reference only.
The Scoota is, in essence, a non-reversing version of our popular Pro controller. It is the same size as the Pro and has all the same features as the Pro series without the ability to reverse - which, naturally, results in a more economical controller. The connections are all arranged at one end of the board for ease of access once the controller is boxed. The Scoota is a full feature Two Quadrant (acceleration and regenerative braking) motor speed controller principally for 12v and 24v battery operation, but 36v and 48v versions are available. Although it is similar in size to other industry standard 110 amp controllers, the power performance is considerably enhanced with no loss of reliability.
Some possible applications are:- powered Scooters, bicycles and tricycles and golf buggies and miniature railways that do not require reversing.
The Scoota is technically advanced and packed with useful features without the 'high tech overkill' which is often used as a sales gimmick. The controllers have been extensively 'value engineered' to give the best possible ratio of performance to cost. Of special interest is the automatic ramp down and power off so the controller always stops smoothly and safely even if the ignition is turned off at full speed. Also of interest are the independent, linear, adjustable acceleration and deceleration ramps, the thermally sensitive overcurrent limiting, the regen current limit, pot fault detection, ramp down at power off, high pedal lockout and ignition switch lockout.
| Supply voltage. | 12v or 24v or 36v | depends on model. 48v on request. | |
| Tolerance | -20 +50% | Subject to overvoltage limit | |
| Overvoltage limit | 47v | 12v, 24 and 36v models | |
| 72v | 48v model | ||
| Supply current. | 30mA | At zero speed | |
| Output voltage (forward). | 0 to 100% full speed | adjustable. | |
| Output current max (typical). | 155 amps | 120 amps regen | |
| 1 minute rating. | 115 amps | without additional heatsink! | |
| 2 minute rating | 60 amps | without additional heatsink! | |
| continuous | 30 amps or more | heatsink dependant | |
| voltage drop at 20a | 90mV | ||
| Overheat current. | 25 amps - typical | ||
| Overheat temperature. | 95°C - on heatsink | ||
| Switching frequency | 20kHz | approximately | |
| Acceleration time | 330mSec to 7 Sec | adjustable | |
| Deceleration time | 30mSec to 7 Sec | adjustable | |
| Input | 1k to 25k pot or 0-3v | adjustable | |
| Pot fault detect. | greater than 30K | ||
| Size. | 160mm x 102mm x 40mm | ||
| Weight. | 325g | ||
This is a high current version of the Scoota, using the best available MOSFETs. Be warned that this type current rating pushes this type of design technology as hard as is realistically practical as the Sco-180 will give a short term current of around 210 amps. So take great care that sustained overloading doesn't cause (literally) meltdown!
The Scoota 180 48 has no power relay, so reverse battery protection is absent, as is High Pedal Lockout. However - the absence of the relay means the basic version (Sco-180-48) will work over a wide range, 12v to 48v.
However - trying to operate a motor at this sort of current at 12v is impractical!
Bare board version (issue 03) shown above.
Cased version available, details as for Pro 120 controller.
Input is suitable for a standard 10K potentiometer. There is an on-board adjustment to alter sensitivity to suit different operating mechanisms. A connector is supplied. Various speed controls can be supplied as extras, including a spring-return-to-zero speed pot arrangement suitable for hand operation.
You can buy with confidence as the controllers come with a detailed instruction manual and 4QD give full technical service and advice, offer a fixed price repair (when not covered by the 12 month guarantee).
You can download the instruction manual, in PDF format via our manuals and catalogues page.