4QD Motor Speed Controller
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| Instruction manuals | Specifications and features | Questions answered |
| Service and fault finding | Wiring diagrams | Application notes |
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4QD Motor Speed Controller
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Most controllers are situated close to the user, e.g. in a ride-on golf buggy, so are controlled by a speed control pot wired directly to the controller.
However some markets, such as Robots and some model locos and boats require remote operation via a radio control system.
4QD controllers are initially aimed at local operator control rather than at the radio control market, so do not have a radio control interface built in.
4QD have a series of small accessory boards, which accept the signal from a standard radio control receiver and process it to drive the controller. This turns the controller into what the radio control market know as an ESC - or 'Electronic Speed Controller'.
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