User Instructions

2
1.3 Specifications:
- electrical specifications (tab.2)
- mechanical specifications (tab.3)
Table 2.
Supply voltage
27,6V DC
Current consumption
50mA max.
Voltage of low battery indication
U<23V +/- 3%
Technical outputs:
- EPS; output indicating AC power
failure
- PSU; output indicating DC
absence/PSU failure
- LoB output indicating low battery
voltage
- relay type: 1A@ 30VDC/50VAC, time lag: approx. 10s.
CAUTION! In Fig.2. the contact set in the potential-free status
corresponds to a state with no AC power (AC power failure).
- OC type, 50mA max., normal status: L (0V) level, failure: hi-Z level, time
lag: 10s.
- relay type: 1A@ 30VDC/50VAC
CAUTION! In the Fig.2. the set of contacts indicates potential-free status
of the relay which corresponds to the DC power absence (PSU failure).
- OC type, 50mA max., normal status: L (0V) level, failure: hi-Z level
- relay type: 1A@ 30VDC/50VAC
CAUTION! In the Fig.2. the set of contacts indicates potential-free status
of the relay which corresponds to a low battery level
(U
BAT
<23V).
- OC type, 50mA max., normal status: (U
BAT
>23V): L (0V),
failure: (U
BAT
<23V): hi-Z level
Module does not feature a battery detection function. In the case of no
battery or non battery connected, the output is in the normal mode.
LED indication :
- presence of AC power
- presence of DC voltage at the PSU
output
- battery voltage level
- red LED (fig.1, element 1). Under normal status (AC supply) the diode is
permanently illuminated. The absence of AC supply is indicated by the AC
diode going out.
Caution: the LED indicates absence of AC power if the loss lasts minimum
10s.
- green LED (fig.1, element 2) indicates DC power at the PSU output.
Under normal status the diode is permanently illuminated. In case of a
short circuit or an overload, the diode is off.
- green LED (fig.1, element 3) indicates battery voltage level. Under
normal status (U
BAT
> 23V) the diode is permanently illuminated. In case
of decrease of battery voltage (U
BAT
< 23V) the diode is off.
Operating conditions
temperature: -10
o
C÷40
o
C, relative humidity : 20%...90%, without
condensation
Storage temperature
-20ºC...+60ºC
Table 3.
Dimensions
L=116, W=56, H=27, H1=31 [+/- 2mm]
Fixing
M3 screws, mounting plate adjusted for PSB27,6V series power supplies
Connectors
Ф0,41÷1,63 (AWG 26-14)
Net/gross weight
0,11/0,15 kg