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PSV 2435-12 manual 1629en
Power Supplies
24 VDC/3.5 A
Battery 12 Ah/Security grade 3
Instruction manual
PSV 2435-12
DESCRIPTION
PSV 2435-12 is an up-to date power supply unit with battery
backup compliant with EN standards. Unit provides all features
required by EN 50131-6:2008, security grade 3.
Distinctive and unique feature of PSV 2435-12 is invented by
Alarmtech ViP mode – Voltage-in-Parallel. Power supply units
with ViP feature can be connected in parallel both (+) and (-) on
one common power bus without a need of additional synchroni-
zation. Connected units will share load on a bus. ViP feature can
be used to build distributed and redundant power systems. It can
be also used to compensate voltage drops on a bus by placing
power supply units in distant bus sections.
Power conversion is based on high frequency SMPS regulator
providing high conversion efficiency. Low losses inside unit pre-
serve batteries from overheating shortening battery life time.
Computerized battery recharging circuit works in constant poten-
tial – limited current mode – the best mode to provide the longest
possible battery life time.
Power unit is equipped with built-in diagnostic system detecting
and signalling mains failure, different battery failures including
end-of-life warning, output faults like low voltage or broken fuse.
APPLICATIONS
Power supply system for 24 V installations
Distributed power supply systems with built-in redundancy
Power supply systems for access control, fire and intruder
alarm installations
MAIN FEATURES
Security grade 3 (EN 50131-6:2008)
Type A – mains supply with rechargeable battery
Total rated output in grade 3:
0.25 A (30 h in battery mode with 12 Ah batteries)
Total rated output in grade 2:
0.74 A (12 h in battery mode with 12 Ah batteries)
Total rated maximal output to installation: 3.0 A
Battery recharging current – 0.5 A, providing recharging time
below 24 h
Total current capacity of power unit – 27.6V, 3.5 A
ViP (Voltage-in-Parallel) feature increasing reliability and ca-
pacity of power supply systems – power supplies with ViP fea-
ture can be connected in parallel to same bus without need
for additional synchronization
Capable to work with pack of two 12 V/12 Ah sealed lead acid
batteries
Short circuit and overload protection
Detection of no mains supply (EPS fault)
Detection of different battery faults (APS fault) – not con-
nected, low voltage, high internal resistance
Detection of low output voltage (OUT fault)
Detection and LED identification of broken fuses
Detection of power unit failure
Deep discharge protection of battery (DDP)
Remote and local battery testing
Tamper security provided – case opening and pry-off
BLOCK DIAGRAM
EPS – External Power Supply (mains)
APS – Alternative Power Source (battery)
OUT - Output voltage
SAB – Sabotage
SDT – Storage Device (battery) Test
24 VDC Output
230 VAC
Power Supply 24 VDC
+
_
12 V battery
12 Ah
Signalling outputs
EPS, APS, OUT, SAB
230 VAC
input
N
L
PE
Power unit
PSV 2435
ViP
output
OUT +
OUT -
BAT +
BAT -
12 V battery
12 Ah
Battery pack
2x 12 V/12
Ah
SDT
input
Fault signalling
outputs
Remote battery
test
Front panel
