The present invention is a fairlead for guiding and securing an anchor chain between an offshore structure and an anchor. The method of one embodiment first compares a reference voltage to a supply voltage to determine whether the voltage supply voltage is greater than the reference voltage. A series chaos accumulator is increased responsive to series arcing. The quantizer quantizes the filtered signal into one of two values, thereby generating a quantized signal. Since the internal position sensors work on small changes in position, the leveling effect is not noticeable leading to less tilt of the bed and a smoother motion during height adjustment of he bed. The actuator has a higher surface tension when engaged with the second region of the channel than when engaged with the first region.