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LTBRZ3-C series
| INSTRUCTIONS MANUAL
10.5 Dimming
Dimming (brightness adjustment) of the light is provided in two ways:
➢
Dimming PIN on the connector (PIN #5).
Signal
Adjustment range
Maximum range
Analogue dimming
1V to 10V
0V to 24V
Table 10: Analogue dimming signal operating range.
➢
External potentiometer with 270° turning range. To adjust the potentiometer, use a flat
blade screwdriver 0.4x2.5 [mm].
The table below shows the LED brightness as a function of Analogue dimming voltage in three
different gain conditions (Gain 0, minimum and maximum). Please note what follows:
➢
With analogue dimming pin floating (unconnected), the potentiometer does not affect
brightness adjustment, which is fixed to minimum level (30%);
➢
With analogue dimming voltage between 0V and 1V, the potentiometer does not affect
brightness adjustment, which is fixed to minimum level (30%);
➢
With analogue dimming voltage between 1V and 10V, the potentiometer affects brightness
adjustment according to the table below
➢
With analogue dimming voltage between 11V and 24V, the potentiometer affects brightness
adjustment and allows a modulation between minimum level (30%) and maximum level
(100%);
Gain min.
min.min.min
.
Gain Max.
P
otentiometer
Gain
0
