10
Variable Speed Drive Unit
•
The variable speed drive unit will, ramp up the speed of the operator, run at a predetermined fast speed and
then ramp down prior to closing. For approximately the last 500mm the gate will drive slowly into the stops.
•
The acceleration and deceleration times have been set in the factory for the normal installation but can be
changed if necessary. Similarly, the speed that the gate operates at has also been set but can be changed.
Variable Speed Drive Unit – Key Pad Operation
•
The following diagram (Figure 1) shows the keys on the key pad which are used to select the various
functions, please refer to these when reading further instructions.
Figure 1.
•
The symbols shown in the diagram below (Figure 2) correspond to what is shown on the keypad of the SEW
variable speed drive; the diagram also gives an explanation of the function each symbol relates to.
Figure 2.
