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H
51
10 - OPERATION OF THE OBSTACLE DETECTION SENSORS
The control unit PD13 is equipped of a sophisticated system that allows to find if the movement of the barrier is being prevented by an
obstacle. This system is based on the acknowledgment of the stalling condition (through encoder) and on the measure of the current
draw. The measure of the current is disabled by default.
Through the appropriate
SEnS
menu it is possible to enable and regulate the threshold of participation of the obstacles sensors.
The monitoring/recognition is carried out either during the normal ride or when slowing down.
Detection of an obstacle during normal movement of the gate results in brief inversion of motion in order to free the obstacle.
If an obstacle is detected during closure, any subsequent automatic closure will be disabled.
Note: disabling current (amperometric) measurement does not cancel stall condition recognition.
6.
The recommended value may be modified by pressing the
h
and
i
keys, and pressing the
OK
key confirms the displayed value and the
display shows
SEnS
7.
Press and hold the
i
key until the display shows
FinE
, then press the
OK
key, select the option
Si
and then press the
OK
key to exit
programming mode, storing the value for the sensors.
m
PLEASE NOTE: If the control unit is left to time out from programming mode (1 minute), the obstacle sensor return to
the value that was set prior to performing self-training (according to the default values, the sensor is disabled).
On the other hand, the limit switch positions are always stored.
Summary of Contents for ALFARISS
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