Pulsar PSBSH 1012A User Manual
PSBSH 1012A
v.1.0
PSBSH 13,8V/1A/1,2Ah/HERMETIC
Buffer switch mode power supply unit
EN*
Edition: 1’st from 16 th of November 2011
Supercedes the
-------------
edition.
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Features:
• DC 13,8V/1A uninterruptible power supply
• fitting battery: 1,2Ah/12V
• high efficiency 70%
• battery charging and maintenance control
• excessive discharging (UVP) protection
• battery output full protection against short-circuit
and reverse polarity connection
• battery charge current 0,2A
• START facility for manual battery connection
• LED indication
• FAC indication of the 230V power collapse
• adjustable times indicating 230V power failure
• protections:
•
SCP short-circuit protection
•
OLP overload protection
•
OHP overheat protection
•
overvoltage protection
•
against sabotage
•
IP65 ABS, hermetic enclosure
CONTENTS:
1. Technical description.
1.1 General description
1.2 Block diagram
1.3 Description of PSU components and connectors.
1.4 Specifications
2. Installation.
2.1 Requirements
2.2 Installation procedure
3. Operating status indication.
3.1 LED indication of operating status
3.2 Technical output
4. Operation and use.
4.1 Overload or short circuit of the PSU output
4.2 Battery-assisted operation
4.3 Maintenance
1. Technical description.
1.1 General description.
A buffer PSU is intended for an uninterrupted supply to alarm systems devices requiring stabilized voltage
of 12V/DC (+/-15%). The PSU provides voltage of 13,8 V DC. Current efficiency:
1. Output current 1,0A (without battery)
2. Output current 0,8A + 0,2A battery charge
Total device current + battery: 1A max.
In case of power decay, a battery back-up is activated immediately. Battery charge current is preset to
0,2A. The PSU is located in an ABS enclosure which can accommodate a 1,2Ah/12V battery and features a
microswitch indicating door opening (front cover).
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1.3 Description of PSU components and connectors.
Table 1. Elements of the PSU pcb (refer to chart 2).
Element no. Description
[1]
P
BAT
; pins - configuration of UVP battery protection function
• P
BAT
= protection (disconnection) of the battery off
• P
BAT
= protection (disconnection) of the battery on
TAC; pins J1, J2 - configuration of time lag of AC failure indication
• J1= , J2= time lag T= 5s
• J1= , J2= time lag T= 140s
• J1= , J2= time lag T= 1040s (17m 20s)
• J1= , J2= time lag T= 2h 20m 30s
Legend: jumper installed jumper removed
[2] START button (launching from battery)
[3] V
ADJ
potentiometer, voltage adjustment DC
[4] F
BAT
fuse in the battery circuit
[5]
Connectors:
+BAT- DC supply output of the battery
(+BAT= red, -BAT=black)
+AUX- DC supply output
(+AUX= +U, -AUX=GND)
FAC - AC absence technical output – relay assisted
Caution! In Fig.2. the set of contacts indicates potential-free status which corresponds
to AC power failure.
[6]
LED indication:
AC - LED for AC voltage
LB - LED for battery charge
AUX - LED for DC voltage
[7]
Connector to the external LED indicators: AC and AUX.
Fig.1. Block diagram of the PSU.
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