User Instructions

3
Table 3.
The input voltage range
8V÷28V DC
depending on the range set by the jumper
The output voltage range
4,5V÷6V, 6V÷9V, 9V÷13V, 13V÷19V
Jumper adjustable.
Factory setting: 12V.
The minimum difference between the input and
output voltage
3V
P module power
12W max. (see fig.3)
Energy efficiency
80%÷ 90% for full range of power and loads
Ripple voltage
20mV p-p...50mV p-p
Output current
1,0A max. (See fig.3)
Current consumption by module systems
10 mA max.
Short-circuit protection SCP and overload
protection OLP
180% - 200% of module power - output power limit,
automatic return after elimination of short circuit
Technical outputs
- PSU output indicating failure
- OC type, 50mA max. Failure status: hi-Z state (high
impedance), normal status: L level (0V)
Optical indication
- IN LED indicating DC power status
- AUX LED indicating DC supply status at the output
- PSU LED indicating failure
- red, normal status: is lit continuously
- green, normal status: is lit continuously
- red, normal status: does not lit, failure: is lit continuously
Operating conditions
II environmental class, -10°C ÷40°C, ensure air flow around
the unit for convection cooling
Declaration, Warranty
CE, 2 year from the production date
Table 4.
Dimensions
L=80, W=43, H=27 [+/- 2mm]
Mounting
tape or mounting screw x 2
Terminals
Ф0,41÷1,63 (AWG 26-14)
Net/gross weight
0,04/0,07 kg
2. Installation.
2.1. Requirements.
The DC/DC converter is to be mounted by a qualified installer, holding relevant permits and licenses (applicable and required
for a given country) for step down installations. The module should be mounted in confined spaces with normal relative humidity
(RH=90% maximum, no condensation) and temperature range from -10°C up to +40°C. The module should operate in vertical position
in order to provide free and convectional air flow.
Proper operation of the module requires adequate current capacity of the power source; the power supply capacity should be
calculated using the formula below:
PIN = 1,15 x PAUX
(PIN = 1,15 x IAUX x UAUX)
Example:
The converter will supply the receivers with a capacity of P
AUX
= 12W drawing a total current of I
AUX
= 1A at the voltage
U
AUX
= 12V. The minimum power supply capacity must therefore amount to: P
IN
= 1,15 x 1A x 12V = 13,8W.
The device should be mounted in a metal enclosure (cabinet). The rules for power supply, enclosures and shielding - according to
application - must be observed in order to meet the requirements of LVD and EMC directives.
The module's load balance should be
done prior to installation. During normal
operation, the total current of the receivers should
not exceed I=1A while the power drawn from the
module should not exceed Pmax=12W, as shown
in the Fig. 3.
Fig.3. The maximum output current
depending on the output voltage.