tau D747M Notice D'installation page 18

SLOW-DOWN
To prevent the gate from shuddering at the end of its travel, you can set (through the RALL trimmer)
the slow down function for the opening and closing manoeuvres at a distance of 10 to 100 cm from
the end of travel (by rotating the trimmer clockwise the slow-down distance is increased; vice-versa,
by rotating it counter-clockwise the slow-down distance is diminished). When setting the slow-down
distance, you should take into account the weight of the gate as well as mechanical frictions.
The A/C button on the board has the same function as the OPEN/CLOSE button.
9. REALIGNMENT PROCEDURE
Should the Gate need to be operated manually, use the release system. After the manual operation:
• after a Mains Power Failure, such as a black-out (controller remains disconnected for a certain time), the gate will
be moving slowly to allow the Controller to establish its Limits;
• after a Manual Operation without Mains Power Failure (controller remains connected) it will take 4 to 5 complete
cycles to complete the realignment procedure. During these cycles, Limits and Soft-Stops will not be working.
10. MALFUNCTIONS: POSSIBLE CAUSES AND SOLUTION
The automation does not start
a- Check there is 230V AC power supply with the multimeter;
b- Check that the NC contacts of the card are actually normally closed (3 green LEDs on);
c- Set dip 6 (phototest) to OFF;
d- Increase the FRIZ trimmer to the limit;
e- Check that the fuses are intact with the multimeter.
The radio control has very little range
a- Connect the radio aerial to the terminals of the receiver card and not to terminals 13-14 of the
control card;
b- Check that the ground and the aerial signal connections have not been inverted;
c- Do not make joints to increase the length of the aerial wire;
d- Do not install the aerial in a low position or behind walls or pillars;
e- Check the state of the radio control batteries.
The gate opens the wrong way
Invert the motor connections on the terminal block (terminals 27 and 28 for M1; terminals 22 and 23 for M2).
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