User Instructions

3
1.3. Technical parameters:
- Electrical parameters (Table 3)
- Mechanical parameters (Table 4)
Table 3.
The input voltage range (power supply)
18V÷28V DC
The output voltage range
48V DC +/- 1V
P module power
120W max.
Energy efficiency
94%÷ 96%
Ripple voltage
150mV p-p
Output current
2,5A max.
Current consumption by module systems
25 mA max.
Short-circuit protection and overload OLP
110-150% of the module’s power, manual restart (the failure
requires disconnection of the DC output circuit)
Technical outputs
- PSU output indicating failure – overload or short-
circuit in the AUX output
- 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 - overload or short-
circuit in the AUX output
- 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
Declarations, Warranties
CE, 2 years from the production date
Table 4.
Dimensions
L=140, W=43, H=45 [+/- 2mm]
Mounting
tape or mounting screw x 2
Terminals
Ф0,41÷1,63 (AWG 26-14)
Net/gross weight
0,15/0,20 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 up 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.
The module's load balance should be done prior to installation. During normal operation, the total current of the receivers
should not exceed I=2,5A while the power drawn from the module should not exceed Pmax=120W.
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
= 96W drawing a total current of I
AUX
= 2A at the voltage
U
AUX
= 48V. The minimum power supply capacity must therefore amount to: P
IN
= 1,15 x 2A x 48V = 110,4W.
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.