Lens Control – Also provided on this product are two PWM differential motor drivers to allow variable speed drive applicable for most Zoom and Focus lens. Lens should have “4-wire” motor connections where there is not a common lead between them. The drivers allow the user to control these functions using our protocol provisions. The circuit also provides a regulated +5VDC power source for the lenses feedback pots, and two inputs for the lens pot wipers. When enabled, this allows zoom and focus positions to become part of a “preset”, meaning that each of the 32 preset positions will store a value of Pan, Tilt, Zoom and Focus.

Auxiliary switching provides two auxiliary control outputs, which may be used to activate wipers, lens washers, lights, etc. Each of the two channels has a +12VDC source and floating input. When the aux feature is activated the input is pulled to ground, allowing current to flow.   As the product was conceived for security applications, it was designed to operate from 24VAC. In this configuration, the 24VAC is full wave rectified and filtered, yielding approximately 31VDC, which is then available to the pan and tilt motor drivers. Further regulation is provided for the camera power source and lens drivers. This is the most popular version. In 24VDC variants, QuickSet solders jumpers across the bridge rectifier, to eliminate PN junction drops allowing the full 24VDC to be available for the motor drivers. This is why the 24VAC models run slightly faster that the 24VDC models. The same modification is performed on the 12VDC models, but additionally a 12VDC regulator is removed from the circuit, as it would have no headroom to operate in. Do not connect a QuickEye configured for 12VDC to a higher voltage.

Continuous rotation capability requires a different position sensor in the pan than non-continuous models. Continuous rotation models use a 2048-cycle incremental encoder on the pan axis to provide position feedback. Although more expensive due to the required electrical slip ring, continuous rotation models offer faster response time as the farthest azimuth change would never exceed 180 degrees of rotation. Keep in mind that the slip ring must be capable of carrying all signals and current for the product, and all customer mounted devices.

Continuous rotation capability requires a different position sensor in the pan than non-continuous models. Continuous rotation models use a 2048-cycle incremental encoder on the pan axis to provide position feedback. Although more expensive due to the required electrical slip ring, continuous rotation models offer faster response time as the farthest azimuth change would never exceed 180 degrees of rotation. Keep in mind that the slip ring must be capable of carrying all signals and current for the product, and all customer mounted devices.