Salicru ILUEST NE Série Manuel D'installation Et D'opération page 13

Multitap autotransformer per phase.
Booster transformer per phase.
Electronic control with microprocessor per phase.
Automatic bypass of solid state per phase.
Soft start through remote control.
RS-485 communication port .
Timer for controlling the saving level (Optional).
Manual bypass (Optional).
The static switches are semiconductors controlled by an electronic system, so that, at every moment it is triggered the
corresponding one to the tap that gives the wanted voltage.
In the figure 2, the secondary of the booster transformer is fed by the voltage obtained in the secondary of the tap autotrans-
former, which is supplied directly from the mains through a circuit breaker. This tap is connected to the booster transformer
through the static switches which are controlled by an electronic PCB, so that there is always one semiconductor in operation
only, the one which is giving the right output voltage in that moment. This voltage is add in phase or counterphase to the mains,
through the secondary of the mentioned booster, and correcting any fluctuation in the mains.
3.3.3.- Operating principle.
The dimmer-stabilizer is installed in the head of the light feeder pillar, either in the same control board or in a separate case, it is
not needed any additional control wiring till the lamps (see fig.11 «Typical installation wiring diagram»).
In the moment that the equipment receives voltage, the daily start up cycle starts (see fig.3), doing a "soft start " of the
installation, starting at 210 V and staying at this level for 2' 30'', after them there is an ascent ramp till reaching the 230 V nominal
which takes an additional 5 minutes. During all the start up process , the voltage is stabilized to the corresponding values.
Once the start up process is ended, the equipment is feeding the installation with stabilized voltage at its nominal value, till the
dimming flow order is received. This order comes from an external device (timer, astronomical clock, remote control, manual
operation, ...), which will be connected to the terminales described as «Remote control». Then a descent ramp starts, which
takes 10 minutes, till reaching the saving value.
This process will be repeated as many times as it has been programmed, as well as if there is a black out in the mains.
- 13 -