PSU-B-13.8V/S-10A/1/EL-TR-40Ah/MC PSBD 10A12 Buffer, switch mode power supply unit. v.1.0

PSU-B-13.8V/S-10A/1/EL-TR-40Ah/MC PSBD 10A12 Buffer, switch mode power supply unit. v.1.0
PSBD 10A12
Buffer, switch mode power supply unit.
Edition: 2 from 27 October 2010
Supercedes edition: 1 from 27 May 2010
Features of the power supply unit:
13.8 VDC uninterruptible power supply
Controlling of battery charging and
Protecting of battery against excessive
discharging (UVP)
Securing the BAT circuit against short-circuit
and the battery reverse connection
Selectable charging current
START function of manual battery actuation
Checking the status of safety fuses of AUX1,
AUX2 and AUX3 outputs
LED optical signalisation
BS output for the signalling loss of the 230V
AW output of power supply unit failure,
tripped by:
• outlet short-circuit (SCP)
• outlet overload (OLP)
• battery disconnection < 10V (UVP)
• failure of DC/DC voltage converter
Safety equipment:
• SCP short-circuit protection
• OLP overload protection
• OHP overheat protection
• OVP overvoltage protection
• Surge protection
• Against sabotage
1. Technical description
1.1. General description
1.2. Block diagram
1.3. Description of elements and power supply connectors
1.4. Technical parameters
2. Installation.
2.1. Requirements
2.2. Installation procedure
3. The power supply operation indication
3.1. Optical indication
3.2. Technical output
4. Service and operation
4.1. Overload or short circuit
4.2. Battery operation
4.3. Maintenance
1. Technical description.
1.1. General description.
The buffer power-supply is used for uninterrupted supply of devices requiring stabilized voltage of 12V DC
(+/-15%). The power-supply provides voltage within the following range: U= 11.0V÷13.8V DC of total current
efficiency equal to 10A. In case of power voltage decay, prompt switching to battery supply occurs.
The power-supply has got a metal casing (RAL 9003 colour) with a space for 40Ah/12V battery. The casing
features a micro-switch indicating door (front) opening and separating from the wall.
Information about additional equipment for PSBD 10A12 power-supply:
Modules of DC/DC
voltage converters
Protection module
(fuse blocks)
DC voltage reducers
13,8V DC / 12V DC
DC/DC 10 (1,0 A)
DC/DC 20 (2,0 A)
AWZ 535 – LB4/AW, AWZ 536 – LB5/AW (PTC or FTA, with failure indication – OC
type output)
AWZ 573 – LB4/0,3A/PTC, AWZ 574 – LB4/0,5A/PTC, AWZ 575 – LB4/1,0A/PTC,
AWZ 576 – LB4/0,3-1,0A/FTA,
AWZ 577 – LB8/0,3A/PTC, AWZ 578 – LB8/0,5A/PTC, AWZ 579 – LB8/1,0A/PTC,
AWZ 580 – LB8/0,3A-1,0A/FTA
RN250 – RN-2,5A/12V
RN500 – RN-5,0A/12V
1.2. Block diagram (fig.1).
Fig.1. Block diagram of the power-supply unit.
1.3. Description of elements and connection links of the power-supply unit (tab.1, tab.2, fig.2, fig.3).
Table 1.
Element no.
[Fig. 2]
F1 fuse in the battery circuit
START pushbutton (power-supply activation from the battery)
J, jumper - configuration of UVP battery protection function
protection function (disconnection) of the battery off
• J=
• J=
protection function (disconnection) of the battery on
jumper installed,
jumper removed
P1 potentiometer, DC voltage adjustment
+AUX+AUX1+AUX2+AUX3- Outputs for DC power supply (+AUX= +U, -AUX=GND)
O1, O2, O3, AUX - optical signalisation of power supply operation
AC - LED diode that indicates the presence of AC voltage
LB - LED diode that indicates battery charging
OVP - LED diode that indicates the activation of the OVP overvoltage protection
J1, J2, jumpers – battery charging current configuration
• J1=
Ibat =0.7A
• J1=
Ibat =2.1A
• J1=
Ibat =3.6A
• J1=
Ibat =4.8A
jumper installed
jumper removed
+BAT - DC power supply output of the battery
(+BAT = red, -BAT = black)
BS - technical output of AC shortage – OC type
hi-Z level = status: AC power supply
L level = status: AC power supply failure
AW - failure technical output – OC type
Activation: SCP, OLP, UVP, converter failure
L level = status: correct operation
hi-Z level = status: failure, overload
LED signalisation connection
Tab.1. Elements of the PCB board of the power-supply unit (refer to fig.2).
Fig.2. View of the PCB board of the power-supply unit.
Table 2.
Element no.
[Fig. 3]
Description of outputs of the power-supply unit
Separation transformer
Power-supply unit board (tab. 1)
TAMPER micro-switch (contacts) of the anti-sabotage protection (NC)
F2 fuse in the power supply circuit (230VAC)
L-N 230VAC power supply connection ,
PE protection connection
Battery connectors: +BAT = red, -BAT = black
Tab.2. Elements of the power-supply unit (refer to fig. 3).
Fig.3 View of the power-supply unit.
1.4. Technical parameters:
- electrical parameters (tab.3)
- mechanical parameters (tab.4)
- operation safety (tab.5)
- operation parameters (tab.6)
Electrical parameters (tab. 3).
Supply voltage
Supply frequency
PSU power P
Current consumption
Output voltage
Output voltage setting, escalation and keeping
Voltage setting range
Pulsating voltage
Output current
Power consumption of the power-supply unit
systems during battery operation
Battery charging current
SCP short-circuit protection
OLP overload protection
SCP protection of the battery circuit and reverse
polarity protection
UVP excessive discharge protection
Technical outputs:
- BS output indicating failure of AC power supply
- AW output indicating failure (activation of SCP,
OLP, UVP, converter failure)
- TAMPER output indicating the opening of the
power supply casing
F1 fuse
F2 fuse
230V AC (-15%/+10%)
11.0V ÷ 13.8V DC – buffer operation
10.0V ÷ 13.8V DC – battery operation
20ms / 30ms / 50ms
12.5V ÷ 14.2VDC
50mV p-p max.
1 x 10A – main output +AUX- or
3 x 2.5A - outputs: +AUX1-, +AUX2-, +AUX320mA max.
0.7A / 2.1A / 3.6A / 4.8A
200% ÷ 250% of power supply,
hiccup mode – 13A/200ms and/or
fuse failure in the battery circuit (fuse-element
replacement required)
110% ÷ 150% of power supply – electronic.
Disconnection of power supply outputs – automatic reconnection after the disconnecting of the DC output
10A - current limitation, F1 fuse (failure requires
replace of the fuse-element)
U < 10.0 V (± 5%)
- OC type, 50mA max, normal status: hi-Z level, failure:
level L (0V), 30s time lag.
- OC type, 50mA max, normal status: L(0V) level,
failure: hi-Z level, (automatic return after correct
operation is returned)
- micro-switch x2, NC contacts (closed casing,
mounted on foundation), 0.5A@50V DC (max)
F 10A / 250V
T 6.3A / 250V
Mechanical parameters (tab 4).
Casing dimensions
350 x 425 x 180 (345 x 420 x 172+8) (WxHxD) [mm] (+/- 2)
315 x 390 x Φ 6 x 4szt (WxH)
Battery space
40Ah/12V (SLA) max.
Net/gross weight
10.40 / 11.10 kg
Casing colour
RAL 9003
Cheese screw x 2 (at the front), lock assembly possible
Power-supply: Φ0.41-2.5
Outputs: Ф0.41÷2.5
BAT battery outputs: connectors Φ6 (M6-0-2.5)
TAMPER output: wires, 300 mm
The casing is distant from the assembly surface so that cables can be
installed, cooling: natural convection
Operation safety (tab.5).
Protection class PN-EN 60950-1:2007
Protection grade PN-EN 60529: 2002 (U)
Electrical strength of insulation:
- between input (network) circuit and output circuits of power-supply (I/PO/P)
- between input circuit and PE protection circuit (I/P-FG)
- between output circuit and PE protection circuit (O/P-FG)
Insulation resistance:
- between input circuit and output or protection circuit
Operation parameters (tab.6).
Operation temperature
Storage temperature
Relative humidity
Vibrations during operation
Impulse waves during operation
Direct isolation
Vibrations and impulse waves during transport
I (first)
3000V AC min.
1500V AC min.
500V AC min.
100MΩ, 500V DC
30%...90%, without condensation
According to PN-83/T-42106
2. Installation.
2.1 Requirements.
The buffer power-supply shall be mounted by the qualified installer having appropriate (required and
necessary for a given country) permissions and qualifications for connecting (operating) 230V AC installations and
low-voltage installations. The device shall be mounted in closed rooms, according to the environment class II, of
the normal air humidity (RH=90% max. without condensation) and the temperature within the range from -10°C to
+40°C. The power-supply shall operate in a vertical position so that free and convectional air flow through
ventilating holes of the casing is guaranteed.
Before installation, the balance of the power-supply load shall be performed. During the normal operation,
the sum of currents collected by receivers shall not exceed I=10A (P=138W max.), including the maximum battery
charging current Ibat.
As the power-supply is designed for a continuous operation and is not equipped with a power-switch,
therefore an appropriate overload protection in the power supply circuit shall be guaranteed. Moreover, the user
shall be informed about the method of isolation of the power supply from the power voltage (usually through
assignment and marking of an appropriate fuse in the fuse-box). The electrical system shall be made in
accordance with valid standards and regulations.
2.2 Installation procedure.
1. Before installation is started, the voltage in the 230V power-supply circuit shall be isolated.
2. The power-supply shall be mounted in a selected location and connection cords shall be lead.
3. The power cables (230 VAC) shall be connected to L-N terminals of the power supply. The earth conductor shall
be connected to the terminal marked by the earth symbol
. The connection shall be made by means of a threecore cable (with a yellow and green PE protection wire). The power cables shall be lead to appropriate terminals of
the connection board through bushing.
The circuit of the shock protection shall be performed with a particular care, i.e. the yellow and
green protection wire of the power cable shall be connected from one side to the terminal
marked by the symbol of
in the casing of the power-supply. Operation of the power-supply
without the properly made and fully operational circuit of the shock protection is
UNACCEPTABLE! It can result in failure of devices and electric shock.
4. Connect the conductors of the loads to the +AUX-, +AUX1-, +AUX2-, +AUX3- terminals of the terminal box on
the power-supply unit.
5. If necessary, connect the conductors from the equipment to the technical outputs:
- BS AC status indication (alarm panel, controller, signalling unit, LED diode, etc.)
- AW technical output of failure
- TAMPER signalization of power-supply unit opening or separating from foundation
6. Using the jumper ‘J1’, ‘J2’ determine maximal battery charging current, take into consideration battery
parameters (refer to tab.1 page 4).
7. Using the jumper ‘J’ determine whether the function of disconnecting the discharged battery U<10V (+/-5%) is to
be on or off. The battery protection is on if the jumper ‘J’ is removed.
8. Activate the 230V AC supply (the AC diode should be permanently illuminated, and AUX O1, O2, O3 diode
should be permanently illuminated).
9. Check the output voltage (the power-supply unit voltage without load should be anywhere between
13.6V÷13.9V, and during battery charging 11V÷13.8V). If the value of the voltage requires adjustment, the setting
should be made by means of the potentiometer P1, monitoring the voltage at the AUX output of the PSU.
10. Connect the battery in accordance with the indications: +BAT red to ‘plus’ , -BAT black to ‘minus’, (the LB red
diode should go on and the lighting intensity should reduce with the charging time elapsed increasing).
11. Once the tests and control operation have been completed, lock the enclosure, cabinet, etc.
3. The power supply operation indication.
3.1 Optical indication.
The PSU is equipped with two diodes on the front panel:
• lights – the power-supply unit supplied with 230VAC
• does not light – no 230VAC supply
• lights – DC voltage at the AUX output of the power-supply unit
• does not light – no DC voltage at the AUX output of the
power-supply unit
Moreover, the PSU is equipped with three diodes indicating operation status: AC, LB, AUX, O1, O2, O3,
and UVP, placed on the PCB of the power-supply unit module:
• AC - red diode: under normal status (AC supply) the diode is permanently illuminated. The absence of AC
supply is indicated by the AC diode going off.
• LB - red diode: indicates the battery charging process; the intensity of illumination is dependent on the
charging current.
• AUX - green diode: indicates the DC supply status at the output of the PSU. Under normal status, the
diode is permanently illuminated and in the case of short-circuits or overload, the diode goes off.
• O1, O2, O3 - green diodes: indicate the status of DC power supply at AUX1, AUX2, AUX3 outputs, which
are independently protected with 2.5A polymer safety equipment. In normal state, the diode emits
continuous light – in the case of short-circuit or overload, the diode goes off.
• UVP (fig.2) – red diode: signals the activation of the UVP overvoltage protection. In normal state, the
diode is off – in the case of short-circuit or overload, the diode emits continuous light.
3.2 Technical outputs.
The PSU is equipped with indication outputs:
BS - absence of AC supply output: - OC output type indicates the loss of AC supply in a normal status,
with the supply equal to 230V, the output is deactivated and in case of power supply loss the PSU
activates the output after 30s.
AW - technical output of failure: OC output type indicates failure the occurrence of at least one of the
following failures: SCP, OLP, UVP, voltage converter failure.
In normal state (correct operation), the output has the L status "ground" (0V) – in the case of failure, the
output is open (hi-Z high impedance).
TAMPER - output indicates opening the power-supply unit: output as volt-free contacts which indicate
power-supply unit door status and fastening to the ground: NC unit opened and/or wrongly fastened (e.g.
unit unconnected with the ground): NO.
4. Service and operation.
4.1 Overload of short-circuit to the power-supply output.
The output circuit has an electronic current protection. If permissible value of the Imax output current is
exceeded, the power-supply unit output voltage is disconnected and this is indicated by the O1, O2, O3 and AUX
diodes going off. The voltage is restored automatically, when the receivers are disconnected from the output.
Additionally, the AUX1, AUX2, AUX3 outputs of the power-supply unit are independently protected, using
the PTC polymer fuses. If the output is loaded with the current that exceeds 2.5A, the output voltage is
automatically disconnected, which is indicated by the O1, O2 or O3 green diode going off. The restoration of the
voltage at the output requires the disconnecting output load for the period of at least one minute.
In the case of the short-circuit to the AUX, BAT output, (load 200% ÷ 250% of the PSU power) or incorrect
connection of the battery, the fuse F1 in the battery circuit becomes permanently damaged. The restoration of the
voltage at the BAT output requires the replacement of the fuse.
4.2 Battery operation.
In the case of power failure, in the unit will instantly switch to the battery assisted operation.
In order to activate the operation of the PSU from the battery itself, connect the BAT connectors in accordance with
the indications: +BAT red to ‘plus’ and, -BAT black to 'minus’ of the battery and press and keep depressed for five
seconds the START pushbutton on the equipment board.
The PSU is equipped with the discharged battery disconnection system (UPV); the configuration of
functions through the jumper ‘J’. The battery protection is on if the jumper ‘J’ is removed.
4.3 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 fuse
replacement, only the substitutes in conformity to the original ones are allowed.
The waste electric and electronic products do not mix with general household waste.
There are separate collection system for used electric and electronic products in
accordance with legislation under the WEEE Directive and is effective only with EU.
Notice: The power supply unit is adapted for cooperation with the sealed lead-acid battery (SLA). After the
operation period it must not be thrown but recycled according to the applicable law.
1. Pulsar K. Bogusz Sp.j. (manufacturer) grants a two-year quality warranty for the equipment, starting from the date of purchase
placed on the purchase order.
2. Should such purchase order be missing when the claim is submitted, the three-year guarantee period is counted from the date
of the manufacturing of the device.
3. The warranty includes free-of-charge repairing or replacing with a functional equivalent (the selection is made by the
manufacturer) of the malfunctioning device, due to reasons attributable to the manufacturer, including manufacturing and
material defects, unless such defects have been reported beyond the warranty period (item 1 and 2).
4. The equipment subject to warranty is to be brought to the place where it was purchased, or directly to the main office of the
5. The warranty applies to complete equipment, including the type of defect specified in writing, using a properly filled warranty
6. Should the claim be accepted, the manufacturer is obliged to render warranty repairs, as soon as possible, however not later
that within 14 days from the delivering of the equipment to the service centre of the manufacturer.
7. The repair period mentioned in item 5 may be prolonged, if there is no technical capability to carry out the repairs, and in the
case that the equipment has been accepted conditionally, due to the failing of the warranty terms by the claimant.
8. All the services rendered by force of the warranty are carried out at the service centre of the manufacturer, exclusively.
9. The warranty does not cover the defects of the equipment, resulting from:
- reasons beyond the manufacturer's control,
- mechanical damage,
- improper storage and transport,
- use that violates the operation manual or equipment application,
- random events, including lightning discharges, failures of power networks, fire, flooding, high temperatures and chemical
- improper installation and configuration (at variance with the rules set forth in the manual),
10. Each confirmation of structural modifications or repairs, carried out beyond the service centre of the manufacturer, or any
modification of serial numbers or warranty labels, results in the loss of the rights resulting from the warranty.
11. The liability of the manufacturer towards the buyer is limited to the value of the equipment, determined according to the
wholesale prices suggested by the manufacturer on the day of purchase.
12. The manufacturer shall not be responsible for the defects that resulted from the damaging, malfunctioning or inability to
operate the equipment, particularly, if such defects are the result of failing to abide by the recommendations and requirements
contained in the manual, or the use of the equipment.
Pulsar K.Bogusz Sp.j.
Siedlec 150, 32-744 Łapczyca, Poland
Tel. (+48) 14-610-19-40, Fax. (+48) 14-610-19-50
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