© 27.04.2005 ELKA-Torantriebe GmbH u. Co. Betriebs KG Page 10
EST 4004K
Photo-cell testing before gate movement
DIP B6 OFF
Photo-cell test is not activated.
DIP B6 ON A photo-cell test occurs before each moving.
Attention:
The photo-cell test has to be learnt when programming the controller. Before the
moving of the gate, the photo-cells may be tested.
Max. 6 photo-cells can be connected to the controller MO44-2 and be tested. For the testing
of more than one photo-cell the relay connections of the receivers have to be connected in
series. Parallel to the relay connections a resistor of 1kOhm (+/- 5%) each has to be
connected.
The photo-cell test consists of two parts: The transmitter is taken off the power supply and
then the receiver has to report an obstacle (within max. 2.5 seconds).
The transmitter is connected to the power supply again and then the receiver has to report
that no obstacle is present. If during part one the receiver does not report an obstacle, the
photo-cell is faulty. If during part two the obstacle is still being reported (the controller
assumes a real obstacle being present), the gate will not move. No error code is shown.
