Power Supply - opto engineering LTBRZ3-C Series Instruction Manual

LTBRZ3-C series | INSTRUCTIONS MANUAL
Line number
Line1
Line2
Line3
Line4
Table 4: typical power consumptions and voltage drop across cables with 4 daisy-chain connected modules.
Important note:
LTBRZ3 series is equipped with a control circuit that monitors the power supply. This circuit turns
the illuminator OFF if the Voltage detected at the input port reaches a threshold value of 17-18V,
too low for a correct operation of the embedded led driver. In order to let the illuminator restart,
the voltage must reach 19-20V. The diagram below shows the behavior.
Input voltage
a
Illuminator status
a

10.3 Power supply

The power supply voltage must be 24V. A dedicated and well-regulated power supply is required.
The external power supply must be capable off supplying the current required by the products and
is dependent by how many modules are connected in daisy chain mode.
Parameter
Power supply voltage
Power consumption
Current consumption
When multiple illuminators are connected in daisy-chain configuration, please consider these
values.
Parameter
Power consumption
Current consumption
V 1.00 - eng
Length Power handled
5.0 m 18 W x 4 = 72 W
0.5 m 18 W x 3 = 54 W
0.5 m 18 W x 2 = 36 W
0.5 m 18 W
19-20 V
17-18 V
ON
ON
OFF
a
a
a
+24 Vdc (+/- 5%)
18 W max.
750 mA typ.
Table 5: supply requirements for a single unit.
2 units
36 W max.
1.5 A typ.
Table 6: supply requirements for multiple uns.
Voltage drop
over the line
3.17 V
0.24 V
0.16 V
0.08 V
Value
Power supply current consumption
3 units
54 W max.
2.25 A typ.
Voltage at
input port
20.83 V
20.59 V
20.43 V
20.35 V
4 units
72 W max.
3.00 A typ.
10