Data Sheet

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PSU features:
· EN50131-6 compliance, 1÷3 grades and II environmental
class
· mains supply of ~230 V
· uninterrupted voltage of 27,6 V DC
· fitting battery: 2x17 Ah/12 V
· high efficiency 83%
· PSU current efficiency:
· 1,4 A – for grades 1 , 2 *
· 0,56 A – for grades 3 **
· 5 A – for general use ***
(see: chapter 3.1)
· low level of voltage ripple
· microprocessor-based automation system
· intelligent management of PSU’s output power level
· ‘SERIAL’ communication port with implemented MODBUS
RTU protocol
· remote monitoring (option: Ethernet, RS485)
· free program - ‘PowerSecurity’ for monitoring the PSU
operation parameters
· load current control
· output voltage control
· output fuse status control
· dynamic battery test
· battery circuit continuity control
· battery voltages control
· battery fuse status control
· battery charge and maintenance control
· deep discharge battery protection (UVP)
· battery overcharge protection
· battery output protection against short circuit and reverse
polarity connection
· jumper selectable battery charging current
0,6 A/1,5 A/2,2 A/3 A
· remote battery test (additional module required)
· START button for battery activation
· STOP button for disconnecting during battery-assisted
operation
· optical indication– LCD panel
· electrical parameters reading, e.g.: voltage,
current
· failure indication
· PSU settings adjusted from the panel’s level
· 3 levels of access, password-protected
· PSU’s operation history
· failure history
· real-time clock, battery-backed
· optical indication of PSU overload OVL
· acoustic indication of failure
· adjustable times indicating AC power failure
· technical inputs/outputs with galvanic isolation
· EXT IN input of collective failure
· EPS technical output indicating AC power loss
· PSU technical output indicating PSU failure
· APS technical output indicating battery failure
· internal memory of PSU operating status
· protections:
· SCP short circuit protection
· OLP overload protection
· OHP overheat protection
· OVP over voltage protection
· surge protection
· against tampering: unwanted opening of the
enclosure or detachment from the mounting surface
· convectional cooling
· warranty – 5 year from the production date
The buffer power supply is designed in accordance with the requirements of the EN 50131-6 standard, grade 1÷3 and
II environmental class. It is intended for an uninterrupted supply of alarm system devices requiring stabilized voltage of 24 V DC
(+/-15%).
Depending on a required protection level of the alarm system in the installation place, the PSU efficiency and the
battery charging current should be set as follows:
* Grade 1, 2 - standby time 12h
Output voltage 1,4 A + 3 A battery charge
** Grade 3 - standby time 30h if the faults of the main power source are reported to the Alarm Receiving Centre - ARC
(in accordance with 9.2 – EN 50131-1 standard).
Output voltage 0,56 A + 3 A battery charge
- standby time 60h if the faults of the main power source are reported to the Alarm Receiving Centre - ARC (in
accordance with 9.2 – EN 50131-1 standard).
Output voltage 0,28 A + 3 A battery charge
*** General use – if the PSU is not mounted in an installation complaint with the EN-50131 standard, the acceptable
current efficiency amounts to:
1. Output voltage 5 A + 0,6 A battery charge
2. Output voltage 4,1 A + 1,5 A battery charge
3. Output voltage 3,4 A + 2,2 A battery charge
4. Output voltage 2,6 A + 3 A battery charge
Total current of the receivers + battery: 5,6 A max.
In case of power decay, a battery back-up is activated immediately. The PSU is housed in a metal enclosure (color:
RAL 9005 - black) with battery space for a 2x17 Ah/12 V battery. It is fitted with micro switches indicating unwanted door
opening (front panel) and detachment from the mounting surface.
DESCRIPTION
PSBEN/LCD series power supply unit
Buffer, switch mode power supply unit 27,6 V DC Grade 3
Pulsar
®