2QD series controllers Instruction Manual
■Introduction
●4QD's 2QD range are motor speed controllers for battery operation covering the range of currents up to 120 amps. Two voltage options are commonly available, the 24v version, for 12v to 24v operation and the 36v version for voltages from 12v to 36v. A 48v version can also be supplied. They are high frequency chopper drivers giving control of motor speed both in drive mode and in braking mode. They use MOSFETs in state-of-the-art, high frequency circuitry to give best possible performance, reliability and battery economy.
●The simplest possible configuration is shown in section 7. However our drives are used for many
different purposes and we therefore give a lot of extra information in this manual - which may make it seem to be more complicated than it is. Please don't be put off but read the manual quickly through before you start. This should introduce you to what you can do with our controllers and clarify what we are trying to say. If you have any queries, please contact us at 4QD since it is only by listening to your comments that we can improve our product and the instructions we give.
●Our drives are protected: provided you don't actually connect them wrongly or short them out, they will survive almost any type of motor - we regularly use a 12v starter motor as a test load, stalling it with a monkey wrench to measure the current limit. The drives survive this, just getting hot, though they will fail eventually from excessive heating. The mark 7 controller also includes protection so that, if a battery connection fails, the controller cannot destroy itself by regenerating power into a non existent battery. Also included is current limit on the regenerative braking.
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2QD series 、 2QD 、 2QD-35A-24v 、 2QD-70A-24v 、 2QD-70A-36v 、 2QD-35A-36v 、 2QD range |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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27th January 2015 |
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127 KB |
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