tau MEC 1000 Guia Para Su Instalacion página 20

17-18 STOP PUSH BUTTON. Activation of this push button causes the gate to stop whatever manoeuvre it
was doing. It will only start again by pressing the OPEN/CLOSE push button.
Normally closed contact.
Terminal 18, 17=Common.
17-19 SAFETY INPUT for PHOTO-DEVICES, MOBILE EDGES etc. For operating modes please see
the COMMAND CARD instructions. Normally closed contact.
Terminal 19, 17=Common.
17-20 FIXED EDGE INPUT. During the opening phase, activation causes it to close again for approximately 2
seconds.
Normally closed contact.
Terminal 20, 17=Common.
If DIP-1 is in the OFF position (1 motor), it works as a fixed edge;
If DIP-1 is in the ON position (2 motors) it works as a photocell: a change of direction can be made only
if activated during the closing phase.
21-22-23 MOTOR M1 ENCODER INPUT.
Terminal n° 21,+ / brown.
Terminal n° 22, - / bleu.
Terminal n° 23 pulse input / white.
21-22-24
MOTOR M2 ENCODER INPUT. (only for MEC2000 vers.).
Terminal n° 21,+ / brown.
Terminal n° 22 - / bleu.
Terminal n° 24 pulse input / white.
25-26 SECOND RECEIVER CHANNEL CONTACT OUTPUT.
Using a two-channel receiver it is possible to control, for instance: lighting systems, another
unit, etc. See receiver instructions for technical contact specifications.
27-28 RECEIVER AERIAL INPUT.
Connect SHIELD to terminal n° 28, WIRE to terminal n° 27.
available we suggest you do not connect the aerial shield (terminal n° 28).
CONTACTS TO USE WHEN THE RECTIFIER CARD IS NOT USED
29 12Vdc input from toroidal transformer (fig.2-3).
30-31 220V input to toroidal transformer (fig.2-3).
32-33 220/230 Vac mains power input (fig.2-3).
INSTALLATION
1- Position the card vertically.
2- It is essential to observe polarities.
3- Different wires should be used for the various circuits.
4- Wire cross section of the equipment's line and of the motors' supply lines should be calculated on the basis of
their length and on the current absorbed.
choose alimentation 220V cable cross sections of at least 1.5 mm²
choose motor 12V alimentation cable cross sections of at least 2.5 mm²
5- Decoupling is advisable whenever control circuits have extremely long lines (longer than 50 m) with elays
installed on the control panel.
6- Ducts leading to and from the equipment must be connected leaving, as far as possible, their initial rotection
level untouched (IP43).
7- If a fuse blows it has to be replaced with another one that has the same identical characteristics.
8- Short circuit any Normally Closed contacts that are not going to be used.
NB : it is compulsory to earth the system and to observe the safety regulations that are in force in each
country
pag.17
If an adequate earthing system is not