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Email to: esupport@4QD.co.uk Instruction Manual Uni series controllers Issue 07 Introduction 4QD’s Uni range of 1 quadrant and 2 quadrant speed Models controllers are well suited to general purpose speed Motors control applications. They are used extensively by Safety hobbyists and industry.
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12v, 24v and 36v. A 48v version is also could cause the motor to run at an uncontrollable top available to special order. 4QD can also supply dual speed. The Uni range controllers are protected so that voltage versions which can be changed by shorting such failure is very unlikely but the constructor out a resistor.
Internal Features Reverse polarity protection relay Trickle resistor Relay resistor Input connector batty Battery + wiper Gain adjust Motor + Acceleration (below) Deceleration (top) (on daughter board) Motor - Battery - Heatsink/mounting block Speed pot input is via a 4 pin connector, supplied. Power &...
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Mounting The controller must be mounted suitable housed to protect it from the weather and from inadvertent contact with foreign bodies, so the use of the correct cover is advocated. The controller mounts via the heatsink as shown in the diagram, right. Mounting will normally be onto a metal plate which will act as heatsinking.
Power Connections Wire size. Motor wiring Use heavy duty wire for the battery, and make them This is not so critical as battery wiring: too long as short as possible. This also applies to the battery and/or too thin wire will cause a loss of maximum linking wire on 24v systems.
Battery Condition Indicator A Battery Condition Meter can easily be fitted between pin A of the connector and pin d (green wire to pot) as shown left, below. If you want the ignition switch also to disconnect the pot, then the pot’s max connection can be connected from the battery positive, via the ignition switch as shown far right.
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4QD also manufacture reversing controllers such as However for fixed use, from a mains power supply, the VTX range. These are designed to decelerate and...
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100 they can (only!) handle 45 power and a larger drive will waste less. When using amps continuous. The current limiting used in 4QD’s an external heatsink remember that steel does not controllers senses the MOSFET temperature and conduct heat well: aluminium is far better.
This manual is also suitable for:
Uni-4-12Uni-4-24Uni-4-36Uni-4-48Uni-8-12Uni-8-24...
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