Pulsar AWZ 502 User Manual
AWZ 502
v.1.2
AWZ 13,8V/5A/17Ah/LM
Linear, Buffer Power Supply Unit
EN
Edition: III (14th Feb 2012)
Supercedes the II (3rd Nov 2011) edition
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Features:
• 13,8VDC/5A uninterruptible supply
• fitting battery: 17Ah/12V
• mains supply 230VAC
• linear voltage regulator
• battery charge and maintenance control
• battery over-discharge protection (UVP)
• battery output full protection against short-circuit
and reverse polarity connection
• jumper selectable battery charging current
0,6A/1,2A/1,8A/2,4A
• START facility for manual battery connection
• status control of the AUX1, AUX2 output fuses
• LED indication
• acoustic indication (buzzer)
• control panel - LED
• BS technical output – indicating 230V power
failure
• AW technical output of the PSU failure, tripped by:
• output short-circuit (SCP)
• output overload (OLP)
• battery disconnection <10V (UVP)
• PSU failure
• output over voltage >16,5V (OVP)
• protections:
• short-circuit SCP
• overload OLP
• overheat OHP
• over voltage OVP
• against sabotage
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 Control panel operation
3.2 Acoustic indication
3.3 Technical outputs
4. Operation and use.
4.1 Overload or short circuit of the PSU output
4.2 DC output over voltage protection (OVP)
4.3 Battery-assisted operation
4.4 Battery-assisted operation – standby time
4.5 Dynamic battery test
4.6 Maintenance
1. Technical description.
A buffer PSU is intended for an uninterrupted supply to alarm system devices requiring stabilized voltage of
12V/DC (+/-15%). The PSU provides voltage of 13,8V DC with current capacity:
1. Output current 5A + 0,6A battery charge
2. Output current 4,4A + 1,2A battery charge
3. Output current 3,8A + 1,8A battery charge
4. Output current 3,2A + 2,4A battery charge
Total current of the receivers + battery: 5,6A max.
In case of power decay, a battery back-up is activated immediately. The PSU is housed in a metal
enclosure (colour: RAL 9003) which can accommodate a 17Ah/12V battery. It features a micro switch that indicates
door opening (front cover) and detaching from the mounting surface.
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OPTIONAL CONFIGURATIONS OF THE PSU:
(visualisation available at www.pulsar.pl)
1. Buffer Power Supply AWZ 13,8V/5x1A/17Ah
- AWZ502 + LB8 5x1A (AWZ579 or AWZ580) + 17Ah
2. Buffer Power Supply AWZ 13,8V/10x0,5A/17Ah
- AWZ502 + 2xLB8 10x0,5A (AWZ578 or AWZ580) + 17Ah
3. Buffer Power Supply AWZ 13,8V/16x0,3A/17Ah
- AWZ502 + 2xLB8 16x0,3A (AWZ577 or AWZ580) + 17Ah
4. Buffer Power Supply AWZ 13,8V/2x5÷7,4V/2x2A/17Ah
- AWZ502 + 2xDCDC20 (2x5÷7,4V/2x2A) + 17Ah
1.2 Block diagram.
Fig. 1. Block diagram of the PSU.
1.3 Description of PSU components and connectors.
Table 1. Elements of the PSU pcb (see Fig. 2).
Element nr Opis
[1]
ZB; pin acoustic indication:
• ZB = acoustic indication on
• ZB = acoustic indication off
• AKU; pins Z3;Z4 - adjustment of battery protection function UVP
• Z3= , Z4= protection on, battery disconnection time lag: 20s
• Z3= , Z4= protection on, battery disconnection time lag: 15 min
• Z3= , Z4= protection on, battery disconnection time lag: 60 min
• Z3= , Z4= protection off
AC; pins Z1, Z2 - adjustable time lag of AC power failure indication
• Z1=
, Z2= time lag T= 0s
• Z1= , Z2= time lag T= 5 min
• Z1= , Z2= time lag T= 1 h
• Z1= , Z2= time lag T= 6 h
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Caption: jumper on, jumper off
[2] START button (launching the PSU from a battery)
[3] STOP button (disconnection of the PSU, starting/finishing the battery test)
[4] F1 fuse in the battery circuit
[5]
Connectors:
BS - AC absence technical output – OC type (open collector)
hi-Z level = status: failure
L level = status: correct operation
AW- technical output of the PSU operation status – OC type (open collector)
hi-Z level = status: correct operation
L level = status: failure
[6]
LED indicating over voltage protection (UVP) - on
[7]
Connector of the temperature detector
[8]
J1,J2 pins- battery charging current selection
• J1= J2= Ibat =0,6 A
• J1= J2= Ibat =1,2 A
• J1= J2= Ibat =1,8 A
• J1= J2= Ibat =2,4 A
Caption: jumper on, jumper off
[9] P1 output voltage adjustment
[10]
Acoustic indicator
Fig. 2. The view of the PSU pcb.
Table 2. Elements of the PSU (see Fig. 3.)
Element no. Description
[1]
Isolation transformer
[2]
Pcb of the PSU (Tab. 1, Fig. 2)
[3] TAMPER x2 micro switches (contacts) of the sabotaże protection (NC)
[4] F
MAIN
fuse in the battery circuit (230V/AC)
[5]
L-N 230V/AC power supply connector, PE protection connector
[6]
Battery connectors +BAT = red, -BAT = black
Fig. 3. The view of the PSU.
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