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www.pulsar.pl                                                               HPSB2548C                                               

GREEN POWER

 

 

 

6

 

RED LED: 

 

on – the PSU is supplied with 230V AC  

 

off – no 230V AC supply  

 

GREEN LED: 

 

on – DC voltage in the AUX output switch mode PSU 27,6V DC 

 

off – no DC voltage in the AUX output output switch mode 
PSU 27,6V DC 

 

 

2. Installation. 

 

2.1 Requirements. 

The buffer PSU shall be mounted by a qualified installer with appropriate  permissions and qualifications for 

230V/AC installations and low-voltage installations (required and necessary for a given country). The device shall 
be  mounted  in  confined  spaces,  according  to  the  environment  class  II,  with  normal  air  humidity  (RH=90%  max. 
without  condensation)  and  the  temperature  from  -

10°C  to  +40°C.  The  PSU  shall  work  in  a  vertical  position  that 

guarantees sufficient convectional air-flow through ventilating holes of the enclosure. 

 

           Before installation, prepare a PSU load balance. During normal operation, the total current drawn by 
the device  may not exceed I = 2,5A

*

.  Maximum battery charge current: 0,5A.  

 
As the PSU is designed for a continuous operation and is not equipped with a power-switch, therefore an 

appropriate  overload  protection  shall  be  guaranteed  in  the  power  supply  circuit.  Moreover,  the  user  shall  be 
informed  about  the  method  of  unplugging  (usually  through  assigning  an  appropriate  fuse  in  the  fuse-box).  The 
electrical system shall follow valid standards and regulations. 
 
 

2.2 Installation procedure. 

 

1. Before installation, cut off the voltage in the 230V power-supply circuit.

 

2. Mount the PSU in a selected location and connect the wires. 
3. Connect the power cables (~230Vac) to L-N clips of the PSU. Connect the ground wire to the clip marked by the 
earth symbol PE. Use a three-core cable (with a yellow and green PE protection wire) to make the connection. 
Lead the cables to the appropriate clips through the insulating bushing of the connection board. 
 
 

 

The shock protection circuit shall be performed with a particular care, i.e. the yellow and 
green wire coat of the power cable shall stick to one side of the terminal - marked with  

 symbol on the PSU enclosure. Operation of the PSU without the properly made and 

fully  operational  shock  protection  circuit  is  UNACCEPTABLE!  It  can  cause  a  device 
failure or an electric shock. 

 
4. Connect the 

receivers’ cables to the terminals AUX+, AUX- of the fuse module.  

5. Connect the power (~230V) 
6. Connect the battery (mind the colours):   
- battery output:  BAT+ cable / red, 
- battery output:  BAT 

– cable / GND / black. 

7. Check the PSU operation indicator: green LED. 
8. Check the PSU output voltage: 
- the PSU voltage without load should amount to U=48V DC.   
9. After installing and checking proper working, the enclosure can be closed. 
 

3. Operating status indication. 

 
3.1 LED indication of operating status. 

The  is equipped with two diodes on the front panel:

 

 
 
 
 
 
 

 
 
 
 
 
 
 

                                                 

*

 

Refer to chart 1 

 

Summary of Contents for HPSB 2548C

Page 1: ...HPSB 2548C v 1 0 HPSB 48V 2 5A 2x17Ah Buffer switch mode power supply unit EN Edition 2 from 24 10 2016 Supersedes edition 1 from 05 01 2016...

Page 2: ...2 Installation procedure 3 Operating status indication 3 1 LED indication of operating status 4 Operation and use 4 1 Overload or short circuit of the PSU output SCP on 4 2 Disconnection of discharged...

Page 3: ...The module of the switch mode PSU 2 L N power supply connector 230V AC PE protection connector 3 LED light indicating correct operation of the switch mode PSU 4 Power supply output AUX 5 DCDC boost co...

Page 4: ...mption 90 mA Battery charge current 0 5A max 2x17Ah 5 Short circuit protection SCP F3 15A melting fuse in case of a failure fuse element replacement required Overload protection OLP 110 150 PSU power...

Page 5: ...950 1 2007 I first Protection grade PN EN 60529 2002 U IP20 Electrical strength of insulation between input input and output circuits of the PSU I P O P between input circuit and PE protection circuit...

Page 6: ...use box The electrical system shall follow valid standards and regulations 2 2 Installation procedure 1 Before installation cut off the voltage in the 230V power supply circuit 2 Mount the PSU in a se...

Page 7: ...y damaged Restoration of voltage at the AUX output requires fuse replacement 4 2 Disconnection of discharged battery The PSU is equipped with the discharged battery disconnection system During the bat...

Page 8: ...quipment should be disposed of separately from normal household waste CAUTION The power supply unit is adapted for cooperation with the sealed lead acid batteries SLA After the operation period they m...

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