
3 Installation
page
14
ELC N6_N10-V3.1-09/11-GB subject to technical alterations
3.4
Explanations of the control functions for ELC
3.4.1 Release
relay
The release relay indicates the trouble-free operation of the unit.
This means that the relay closes when the ELC (see 4.2) is switched on and remains closed
during operation providing there is no defect.
A typical defect would be that the lamp does not fire.
3.4.2 Control input START
High: lamp is on
Low: lamp is off
By applying the High signal the lamp is fired and warms up at maximum current until the
desired power is achieved (see below).
We recommend warm-up at maximum power. After a short time (approx. 2 mins) the full
output has been reached and the lamp power can be varied as desired.
3.4.3 Setting lamp power
Stepless (infinitely variable)
The lamp can be dimmed steplessly from between approx. 20 % to 100 % of the nominal
power. The lamp power is set by applying an analog voltage of between 0 V and 10 V to
control input SET VALUE.
•
0 V corresponds to min. power P
min
(20 % of nominal value)
•
10 V corresponds to max. power P
max
(100 % of nominal value)
SET VALUE can be controlled manually by means of an external potentiometre.
20 %
Lampenleistung
Lamp power
Set value
100%
0 V
10 V
Fig. 7
:
Control characteristic