19
ENGLISH
downs of the line and false contacts;
- do not re-use old pre-existing cables;
- In case of long sections of cables (> 20 m) for N.O./N.C. controls (e.g. OPEN / CLOSE, STOP,
PEDESTRIAN, etc.), in order to avoid gate malfunctions, it will be necessary to uncouple the
various controls using RELAYS or using our 750T-RELE device.
2. INTRODUCTION
The D749MA board has two working modes, selectable through the J6 jumper (see wiring diagram).
J6 Jumped:
standard mode, i.e. the control unit is powered all the time;
J6 Not jumped:
low-energy mode, i.e. the control unit is switched off after each operation and on
after each command (mode where power is supplied by other energy sources,
ex. batteries charged by a photovoltaic panel).
Once the connection is achieved, in low-energy mode, press the PROG button briefly:
• All the green LEDs must be on (each of them corresponds to a Normally Closed input). The go off
only when the controls to which they are associated are operated.
•
All the red LEDs must be off (each of them corresponds to a Normally Open input). The light up
only when the controls to which they are associated are operated.
3. TECHNICAL CHARACTERISTICS
Board power supply
230 V AC - 50 Hz
Max. absorption DC motor
7 A - 18V DC
Fast acting fuse for protection of input power supply 13,5 V AC (F4 - 5x20)
F 16A
Fast acting fuse for battery charger protection (F5 - 5x20)
F 10A
Fast acting fuse for protection of auxiliary circuits 18 V DC (F3 - 5x20)
3,15A
Motor power supply circuits voltage
18V DC
Auxiliary device circuits supply voltage
18V DC
Logic circuits supply voltages
5V DC
Operating temperature
-20 °C ÷ +55 °C
4. CONNECTIONS TO TERMINAL BOARD
Terminals Function
Description
FS1 - FS2
POWER SUPPLY
230 V AC control unit power supply input – Fed by the transformer and
protected by the fuses on the 6,3 A - 230V AC power supply.
1 - 2
PHOTOVOLTAIC
SYSTEM INPUT
external power input (ex. Photovoltaic system 12V DC).
NB: In the latest versions of the control boards, the voltage change
through jumper J7 is no longer necessary (make sure whether it is
present on the control board or not).
ATTENTION: POWERING THE CONTROL UNIT WITH AN EXTERNAL
SOURCE, ALL THE OTHER 18V DC OUTPUTS BECOME THE SAME AS THE
OUTSIDE VOLTAGE.
3 - 6
PEDESTRIAN
N.O. PEDESTRIAN button contact input – commands total opening and
closing of motor 1 – governed by dip-switches 2 and 3. (3= PED - 6= COM)
4 - 6
OPEN/CLOSE
OPEN/CLOSE button N.O. input – Controls the opening and closing of the
automation and is regulated based on the function of dip-switches 2 and
4. (4= O/C - 6= COM)
5 - 6
STOP
STOP button N.C. input – Stops the automation in any position, temporarily
preventing the automatic closure, if programmed.
(5= STOP - 6= COM )
Содержание D749MA
Страница 76: ...76 ...