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how it works
the sd series gate operator consists of an electro-mechanical drive unit with
built in electronic controls.
gear
wheel
from operator
drives rack on
gate
when the operator is activated by remote control or other device, it drives the
gate open or closed by way of a toothed rack fitted to the gate that engages
with a gear wheel on the operator. magnets are fitted to the rack to set the
open and close limit of the gate, which is detected by a sensor in the operator.
a built in encoder sensors the distance the gate is travelled accurately control-
ling the ramp up and ramp down of the motor speed and the open and close
limits.