Pulsar PSDCG2 Series User manual

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USER MANUAL
EN
Edition: 1 from 19.02.2022
Supersedes edition:
Power supplies
PSDCG2 series
Buffer power supply units, multi-output
enclosed Grade 2

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Features:
compliance with norm EN50131-6:2017
in grade 1, 2 and II environmental class
compliance with norm EN60839-11:2013
in grade 1, 2 and II environmental class
supply voltage ~200 - 240 V
DC 13,8 V uninterruptible power supply
available versions with 4x1A, 8x1A current
efficiencies
high efficiency (up to 86%)
battery charging current jumper selectable
deep discharge battery protection (UVP)
optional equipment: set of external LED
indicators: PKAZ168, mounting plates DIN4
LED optical indication
function START allows running PSU from battery power
dynamic battery test
battery circuit continuity control
battery voltage control
EPS technical output indicating power loss
–relay type
APS technical output indicating battery failure
–relay type
FPS technical output of fuse activation indication
battery charging and maintenance control
battery output protection against short circuit and reverse
connection
protections:
oSCP short circuit protection
oOLP overload protection
oOVP overvoltage protection
osurge protection
warranty –2 years from production date
TABLE OF 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. Optical indication.
3.2. Technical outputs.
3.3. Standby time.
3.4. Battery charging time.
3.5. Running PSU on battery backup.
4. Operation and use
4.1. Overload or short circuit of the PSU module output.
4.2. Operation of the PSU OVP system.
5. Maintenance.
1. Technical description.
1.1. General description.
The buffer power supply is designed in accordance with the requirements of the (I&HAS) EN50131-6:2017
and (KD) EN60839-11:2013 standard, grade 1, 2 and II environmental class. The power supplies units are intended
for an uninterrupted supply of I&HAS i KD devices requiring stabilized voltage of 12 or 24 V DC (±15%).
Parameters of power supplies:
PSU’s name
Output
voltage
Charging
current
Output current
Total output current
with charge
PSDCG2-12V4x1A
13,8 V
0,5 / 1 A
4x1 A
5 A
PSDCG2-12V8x1A
13,8 V
1 / 2 A
8x1 A
10 A
In case of power failure, a battery back-up is activated immediately.
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:
The 12h standby output current can be calculated from the formula:
IWY=QAKU/12 - IZ
where:
QAKU –minimum battery capacity [Ah]
Iz –PSU current consumption (including optional modules) [A] (table 3)

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To be able to install PSU module in the Intrusion Detection Systems or Access Control
systems, it must be placed in enclosure with an appropriate design and, in order to obtain
certificate, supplementary tests must be commissioned for compliance with EN50131-6: 2017
or EN60839-11: 2013 standards in notified laboratory.
PSU module should be configured properly, depending on application, to work in burglary and
assault signalling systems or access control. For this purpose, appropriate charging current
should be selected (taking into account battery capacity and required charging time).
1.2. Block diagram.
Fig. 1 Block diagram
1.3 Description of PSU components and connectors.
Table 1. Elements and connector of PSU (see Fig. 3a, 3b).
Element no.
Description
[1]
LED indicating presence of DC voltage at outputs
[2]
Connector for LED indicators
[3]
Selection jumper for charging current:
IBAT = , IBAT = I1
IBAT = , IBAT = I2
[4]
START button (launching from battery)
[5]
PSU output: Outputs AUX1… AUXn
Battery terminals (-BAT+)
[6]
Technical outputs:
APS –technical output of battery failure
EPS –technical output of AC power loss indication
FPS output indicating failure of one of outputs, relay type
[7]
L-N power supply connector 230 V AC, –connector for connection of a protective conductor
[8]
Main fuse FMAINS
[9]
F1..Fn output fuses
[10]
Battery fuse FBAT
[11]
LED (red) indicating failure of one of the outputs (fuse activation) AUX1 ÷ AUXn

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Fig. 2a. View of power supply module PSDCG2-12V4x1A Fig. 2b. View of power supply module PSDCG2-12V8x1A
.
Fig. 3a. View of power supply module outputs PSDCG2-12V4x1A
Fig. 3b. View of power supply module outputs PSDCG2-12V8x1A
1.4. Specifications:
- electrical parameters (tab. 3 )
- operation safety (tab. 4)
- operating parameters (tab. 5)
Fig.4 Dimensions of power supply unit

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Table 3. Electrical parameters.
Model
PSDCG2-12V4x1A
PSDCG2-12V8x1A
PSU type
A (EPS - External Power Source), II environmental class
Power supply
~ 200 - 240 V
Current consumption
0,7A
1,3A
Power frequency
50/60 Hz
Inrush current
40 A
Output power PSU
69W
138W
Output current
4x1 A
8x1 A
Total output current with charging
5 A
10 A
Efficiency
85%
86%
Output voltage
11 - 13,8 V –buffer operation
10 - 13,8 V –battery-assisted operation
Ripple voltage (max.)
100mV p-p
Current consumption by PSU systems during
battery-assisted operation
50mA
Fitting battery
7 –17 Ah
7 –40 Ah
Charging current (jumper selectable)
I1: 0,5 A
I2: 1 A
I1: 1 A
I2: 2 A
Net/gross weight
0,5 / 0,6 kg
0,8 / 0,9 kg
Battery circuit protection SCP and reverse
polarity connection
- FBAT fuse (in case of a failure, fuse-element replacement
required)
Overload protection (OLP)
105-150% PSU power, automatically recovered
Over voltage protection (OVP)
>19 V automatic recovery
Deep discharge battery protection UVP
U<9,5 V (± 5%) – disconnection of battery circuit
Optical indication
- LEDs on PCB of power supply unit:
Green LED1…LED..n LEDs indicate power supply status on
outputs: AUX1...AUX..n
LED FPS on PSU's PCB –fuse damage indication
LED optical indication output (intended for
optional indication set PKAZ168)
LED AC –presence of AC voltage
LED DC –presence of DC voltage in output of PSU
APS FLT –battery failure
Fuses: - FBAT
T6,3A/250V
T10A/250V
- F1….n
F1A/250V (permissible up toF2A/250V)
Enclosure dimensions (LxWxH) [±2mm]
200x120x48
204x141x52
Fixing (L1xW1xL2xW2)
155,5x64x18x51,5
Terminals:
Mains supply:
Outputs AUX1-AUXn:
0,5 –2,5 mm2(AWG 26 –12)
Technical outputs:
0,5 –1 mm2(AWG 26 –18)
Battery outputs:
Battery wires 6,3F –45cm, angle muffs ML062
Optional equipment:
optional equipment: set of external LED indicators: PKAZ168,
mounting plates DIN4
Table 4. Operation safety.
Protection class EN 62368-1
I (first)
Protection grade EN 60529
IP20
Electrical strength of insulation:
- between input and output circuits of the PSU
- between input circuit and protection circuit
- between output circuit and protection circuit
4000 V DC min.
2500 V DC min.
500 V DC min.
Insulation resistance:
- between input circuit and output or protection circuit
100 MΩ, 500 V DC
Table 5. Operating parameters.
Environmental Class
II
Operating temperature
-10ºC...+40ºC
Storage temperature
-20ºC...+60ºC
Relative humidity
20%...90%, without condensation
Vibrations during operation
unacceptable
Impulse waves during operation
unacceptable
Direct insolation
unacceptable
Vibrations and impulse waves during transport
According to PN-83/T-42106

2. Installation.
2.1 Requirements.
Buffer power supply is designed to be installed only by qualified installer with necessary permits and
authorisations (required in installation country) to connect (interfere) with the 230 V mains supply. The unit should be
mounted in confined spaces, in accordance with the II environmental class, with normal relative humidity (RH=90%
maximum, without condensing) and 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.
The unit should be mounted in a metal enclosure (cabinet) in a vertical position so as to ensure free, convection
air flow through the vents. In order to meet the EU requirements, follow the guidelines on: power supply, enclosures and
shielding: - according to application.
As power supply is designed for a continuous operation and is not equipped with a power-switch, therefore, an
appropriate overload protection in power supply circuit should be provided. Moreover, the user shall be informed about
the method of unplugging (most frequently through separating and assigning an appropriate fuse in the fuse-box). The
electrical system shall follow valid standards and regulations.
2.2 Installation procedure.
CAUTION!
Before installation, cut off voltage in 230 V power-supply circuit. To switch power off, use an
external switch, in which distance between contacts of all poles in disconnection state is not
less than 3mm.
It is required to install in the supply circuits, in addition to power supply, circuit breaker with 6 A nominal
current.
1. Mount the PSU in a selected location and connect the wires.
2. Connect power cables (~230 V) to L-N clips of PSU. Connect ground wire to clip marked by earth symbol PE .
Use a three-core cable (with a yellow and green protection wire ) to make connection). Lead the power cables
to the relevant terminals of the power supply via an isolation conduit.
Shock protection circuit shall be done with a particular care: yellow and green wire coat
of power cable should be connected to terminal marked with the grounding symbol on PSU
enclosure. Operation of PSU without the properly made and fully operational shock protection
circuit is UNACCEPTABLE! It can cause damage to equipment or an electric shock.
3. If needed, connect the device cables to the technical outputs:
- EPS; technical output of AC network absence indication
- APS; technical output indicating battery failure
- FPS; technical output indicating
4. Connect equipment to the appropriate output terminals of power supply (positive connector +V, negative
connector -V).
5. Use the IBAT jumper to set the maximum battery charging current, taking into account charging capacity and
required charging time.
6. Mount battery(s) in the battery compartment of enclosure. Connect the batteries with the PSU paying special
attention to the correct polarity.
7. Switch on 230 V supply. LEDs on the PCB of power supply should light. Optionally, you can install additional
PKAZ168 signaling module (chapter 3.1). After installing and checking proper working, enclosure can be closed.
Output voltage of the PSU, without load U = 13,8 V DC.
During battery charge, voltage can amount to U = 11 - 13,8 V DC.
8. Run PSU test: check LED and acoustic indication (see section 3.1) and technical output; through:
- cutting off 230 V current: LED AC go out, EPS technical outputs will change status into opposite after about
30s
-battery disconnection: APS technical output will change status after a battery test have been completed
(~5min) and red APS LED lights up
- dismantling of one of AUX fuses: red FPS LED lights up, FPS technical output will change status
3. Operating status indication.
The power supply unit features LED status indication.

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Green LED AC:
on - PSU is supplied with 230 V,
off - no 230 V power, battery-assisted operation
Green LED DC:
on - presence voltage in output of PSU
off - no voltage in output of the PSU
Red LED APS:
off –no failure
on - indicates battery failure status
3.1 Optical indication.
The power supply unit features LED status indication. Presence of voltage at output of the PSU is indicated by
the green LED L1 ÷ Ln. Failure (fuse damage) is indicated by shutting illuminating the red LED FPS. Status of the PSU
(fuse damage AUX1 ÷ AUXn) can be remotely controlled via FPS technical output.
Moreover, signalling can be extended with optional PKAZ168 module:
3.2 Technical outputs.
The PSU is equipped with indication outputs:
FPS indicating fuse failure
Output indicates failure of at least one of AUX1-AUXn output fuses. In case of fuse failure, relay is switched
immediately.
EPS FLT - output indicating 230 V power loss.
The output indicates 230 V power failure. In case of power failure, contacts of relay change over after about
30 seconds.
APS FLT - output indicating battery failure.
The output indicates the PSU failure. In case of failure, contacts of relay change over. PSU failure can be
caused by the following events:
- defective or low battery
- battery fuse failure
- no continuity in the battery circuit
- battery voltage below 11,5 V during battery-assisted operation
A battery failure is detected within a maximum of 5 minutes - after each battery test.
CAUTION! The figure set of contacts shows a potential-free status of relay, which corresponds to
power supply failur.
3.3 Standby time.
Battery-assisted operating depends on battery capacity, charging level and load current. To maintain an appropriate
standby time, current drawn from the PSU in battery mode should be limited. Required battery capacity can be calculated
using following formula:
QAKU=standby time *(IWY + Iz)
where:
QAKU –minimum battery capacity [Ah]
IWY –power supplies output current (drawing by the load
Iz –PSU current consumption (including optional modules) [A] (Table 3)

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3.4Battery charging time.
The PSU has a battery circuit charged with direct current. The current selection is done with use of the IBAT
jumpers. The table below shows how long does it take to charge a (fully discharged) battery up to min. 80% of its nominal
capacity.
Table 6. Approximate battery charging time up to the capacity of 0,8.
Battery
Charging current
0,5A
1A
2A
7Ah
13h
7h
-
17Ah
31h
16h
8h
28Ah
-
26h
13h
40Ah
-
36h
18h
3.5Running PSU on battery backup.
Power supply allows you to run on battery backup when necessary. To do this, press the START button on PCB.
4. Operation and use.
4.1. Overload or short circuit of the PSU module output.
The AUX1 ÷AUXn PSU outputs are protected against short circuit by glass fuses. Activation of the protection
(glass fuse blowing) is indicated by shutting down green LED nearby appropriate outputs fuse on the PSU module and
illuminating the red LED FPS. In case of damage, replace the fuse (compatible with the original). As a precaution, it is
possible to use fuses with a higher current (up to 2 A) and a fast blow characteristic (F), which will increase the current-
carrying capacity of the given output. However, this does not affect the overall current capacity of the power supply.
Total current of the receivers + battery charging current mustn’t exceed maximum current of power
supply.
4.2. Operation of the PSU OVP system.
If the OVP system is activated, the output voltage is automatically cut off. Operation can be resumed after disconnecting
the PSU from 230V after approx. 1 minute.
5. Maintenance.
Any and all maintenance operations may be performed following the disconnection of the PSU from the power
supply network. The PSU does not require performing any specific maintenance measures, however, in the case of
significant dust rate, its interior is recommended to be cleaned with compressed air. In the case of a fuse replacement,
use a replacement of the same parameters.
WEEE MARK
According to the EU WEE Directive –It is required not to dispose of electric or electronic waste as unsorted
municipal waste and to collect such WEEE separately.
CAUTION! The power supply module unit is adapted for a sealed lead-acid battery (SLA). After the operation period it must not be
disposed of but recycled according to the applicable law.
Pulsar sp. j.
Siedlec 150, 32-744 Łapczyca, Poland
Tel. [phone], Fax. [phone]
e-mail: [e-mail], [email protected]l
http:// www.pulsar.pl, www.zasilacze.pl