Pulsar EN54-3A17LCD User Manual

EN54-3A17LCD

v.1.1

EN54 27,6V/3A/2x17Ah/LCD

power supply unit for fire alarm systems

EN*

Edition: 7 from 31.01.2019

Supersedes the edition: 6 from 11.01.2016

LCD Version

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TABLE OF CONTENTS

1. PSU FEATURES: .................................................................................................................................... 4

2. PACKAGE CONTENTS. ....................................................................................................................... 5

3. FUNCTIONAL REQUIREMENTS OF THE PSU. ............................................................................. 6

4. TECHNICAL DESCRIPTION. ............................................................................................................. 7

4.1. GENERAL DESCRIPTION........................................................................................................................................................ 7

4.2. BLOCK DIAGRAM. ................................................................................................................................................................ 7

4.3. DESCRIPTION OF COMPONENTS AND POWER SUPPLY TERMINALS. ........................................................................................ 8

5. INSTALLATION. .................................................................................................................................. 11

5.1. REQUIREMENTS. ................................................................................................................................................................ 11

5.2. INSTALLATION PROCEDURE. ................................................................................................................................ .............. 11

6. FUNCTIONS. ......................................................................................................................................... 13

6.1. CONTROL PANEL. .............................................................................................................................................................. 13

6.2. FIRST RUN OF THE PSU – LANGUAGE SELECTION SCREEN. ................................................................................................. 14

6.3. MAIN SCREEN OF THE LCD. ............................................................................................................................................... 14

6.4. INFORMATION DISPLAYED ON THE LCD PANEL. ................................................................................................................ 15

6.4.1. Preview menu. ............................................................................................................................................................ 15

6.4.2. LCD screen – current parameters . ..................................................................................................................... 16

6.4.3. LCD screen – current failures . ................................................................ ........................................................... 17

6.4.4. LCD screen – history of the parameters . ............................................................................................................ 17

6.4.5. LCD screen – history of events . .......................................................................................................................... 19

6.4.6. List of failure codes and information messages. ........................................................................................................ 20

6.5. TECHNICAL OUTPUTS. ........................................................................................................................................................ 21

6.6. INPUT OF COLLECTIVE FAILURE EXTI. ............................................................................................................................... 22

6.7. INDICATION OF THE ENCLOSURE OPENING - TAMPER. ..................................................................................................... 23

6.8. INCREASING THE NUMBER OF OUTPUTS WITH OPTIONAL EN54-LB4 OR EN54-LB8 FUSE MODULES. ................................ 23

6.9. OVERVOLTAGE PROTECTION OF THE PSU OUTPUT OVP. ................................................................................................... 24

6.10. PSU OVERLOAD. ................................ ................................ ................................ .............................................................. 24

6.11. INDICATION OF EXCEEDING THE „IMAX A” CURRENT. ...................................................................................................... 24

6.12. SHORT-CIRCUIT OF THE PSU OUTPUT. ............................................................................................................................. 24

7. PSU SETTINGS. .................................................................................................................................... 25

7.1. PASSWORD. ........................................................................................................................................................................ 25

7.1.1. Entering the password. ............................................................................................................................................... 25

7.1.2. Changing the password. ............................................................................................................................................. 26

7.1.3. Disabling the password. ............................................................................................................................................. 26

7.1.4. Resetting passwords. .................................................................................................................................................. 26

7.1.5. Keyboard lock. ........................................................................................................................................................... 27

7.2. PSU. .................................................................................................................................................................................. 28

7.2.1. Battery test activation. ................................................................................................................................................ 28

7.2.2. Acoustic indication ON/OFF ...................................................................................................................................... 29

7.2.3. EXTo output ON/OFF ................................................................................................................................................ 30

7.2.4. Setting the delay time for EPS output indicating ~230 V power loss. ........................................................................ 30

7.2.5. Setting the communication address applies to cooperation with PowerSecurity. ............................................. 31

7.2.6. Setting the transmission parameters applies to cooperation with PowerSecurity. ........................................... 32

7.3. CONTROL PANEL. ............................................................................................................................................................... 33

7.3.1. Setting the display language. ...................................................................................................................................... 34

7.3.2. Setting the date ........................................................................................................................................................... 34

7.3.3. Setting the time ........................................................................................................................................................... 35

7.3.4. Setting the backlight mode. ......................................................................................................................................... 35

7.3.5. Contrast setting .......................................................................................................................................................... 36

7.3.6. Blinking light indicating failure ................................................................................................................................. 36

8. RESERVE POWER SUPPLY CIRCUIT. .......................................................................................... 38

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8.1. BATTERY DETECTION. ........................................................................................................................................................ 38

8.2. PROTECTION AGAINST SHORT -CIRCUIT OF THE BATTERY TERMINALS. .............................................................................. 38

8.3. PROTECTION AGAINST REVERSE BATTERY CONNECTION. ................................................................................................... 38

8.4. DEEP DISCHARGE BATTERY PROTECTION UVP. ................................................................................................................. 38

8.5. BATTERY TEST. .................................................................................................................................................................. 38

8.6. MEASUREMENT OF THE RESISTANCE OF THE BATTERY CIRCUIT. ........................................................................................ 39

8.7. BATTERY TEMPERATURE MEASUREMENT. ......................................................................................................................... 39

8.8. STANDBY TIME. ................................................................................................................................................................. 39

9. REMOTE MONITORING (OPTIONS: WI-FI, ETHERNET, RS485, USB). ................................ 40

9.1. COMMUNICATION VIA THE USB-TTL INTERFACE. ............................................................................................................ 40

9.2. ETHERNET NETWORK COMMUNICATION. ........................................................................................................................ 40

9.3. THE WI-FI WIRELESS COMMUNICATION. ............................................................................................................................ 41

9.4. RS485 NETWORK COMMUNICATION. ................................................................................................................................. 42

9.5. „POWERSECURITY” PROGRAM. .......................................................................................................................................... 43

10. TECHNICAL PARAMETERS. ......................................................................................................... 45

Table 15. Electrical parameters. .......................................................................................................................................... 45

Table 16. Mechanical parameters. ....................................................................................................................................... 46

Table 17. Safety of use. ................................................................................................................................ ......................... 47

Table 18. Operation parameters. ......................................................................................................................................... 47

Table 19. Recommended types and sections of installation cables. ..................................................................................... 47

11. TECHNICAL INSPECTIONS AND MAINTENANCE.................................................................. 48

11.1. BATTERY REPLACEMENT OF THE LCD PANEL. ................................................................................................................. 48

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1. PSU features:

 In accordance with standards: EN 54-4,
EN12101-10

 27,6 V DC/ 3 A uninterruptible power supply
 battery housing for two 17 Ah/12 V batteries
 independently protected outputs AUX1 and AUX2
 high efficiency 84%
 low level of voltage ripple
 microprocessor-based automation system
 intelligent PSU overload protection
 measurement of the resistance of the battery circuit
 automatic temperature-compensated charging
 battery test
 two-stage battery charging process
 accelerated battery charging
 monitoring of the continuity of the battery circuit
 monitoring of the battery voltage
 monitoring of the battery fuse
 monitoring of charging and maintenance of the

batteries

 deep discharge battery protection (UVP)
 battery overcharge protection
 battery output protection against short-circuit and

reverse connection

 monitoring of the load current
 output voltage control
 fuse monitoring of AUX1and AUX2 outputs
 ~230 V mains voltage measurement
 „SERIAL” communication port with implemented

MODBUS RTU protocol

 Power Security" is a free application for remote

monitoring of power supplies (for PC and Android
Phones)

 remote control (options: WiFi, Ethernet, RS485,

USB)

 remote battery test (required additional modules)

 cooperation with optional EN54-LB4 or EN54-LB8

fuse modules

 optical indication of PSU overload OVL
 acoustic indication of failure
 adjustable delay for ~230 V power loss indication
 relay output of collective failure ALARM
 input of collective failure EXTi
 controlled relay output EXTo
 technical inputs/outputs with galvanic isolation
 EPS technical output indicating ~230 V power loss
 PSU technical output indicating PSU failure
 APS technical output indicating battery failure
 internal memory of PSU operating status
 optical indication – LCD panel

 readings of electrical parameters, including:

voltage, current, resistance of the circuit, mains
supply voltage

 failure indication
 configuration of the PSU settings from the

control panel

 two levels of password protected access
 operation memory of the PSU
 failure memory
 real time clock with battery backup

 protections:

 SCP short-circuit protection
 OLP overload protection
 OHP overheat protection
 OVP overvoltage protection
 Surge protection

 Antisabotage protection (Tamper)
 closing the enclosure - lock
 convection cooling
 warranty - 5 years from the production date

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2. Package contents.

 Power Supply Unit
 User manual
 Red mounting spacers – 4 pieces
 Red, metal mounting brackets for hanging the power supply – 4 pieces
 M8x16 mounting screws – 4 pieces
 PG9 cable glands – 4 pieces
 PG11 cable glands – 4 pieces
 Battery serial connection cable
 Keys to lock the power supply– 2 pieces
 Cable tie 190x4,8 – 12 pieces

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Functional requirements

Requirements

according to

standards

PSU
EN54-3A17LCD

External Power Supply failure indication

YES

YES

Two independent power supply outputs protected against short-circuit

YES

YES

Temperature-compensated battery charging

YES

YES

Measurement of the resistance of the battery circuit

YES

YES

Low battery indication

YES

YES

Deep discharge battery protection

YES

YES

Protection against short-circuit of the battery terminals

YES

YES

Blown battery fuse indication

YES

YES

Charging circuit failure indication

YES

YES

Low output voltage indication

YES

YES

High output voltage indication

YES

YES

Indication of power supply failure

YES

YES

Overvoltage protection

YES

YES

Short-circuit protection

YES

YES

Overload protection

YES

YES

Output of collective failure ALARM

YES

YES

EPS technical output

YES

YES

APS technical output

YES

YES

PSU technical output

-

YES

Input of an external failure indication EXTi

-

YES

Controlled relay output EXTo

-

YES

Remote battery test

-

YES

~230 V mains supply voltage measurement

-

YES

LCD optical indication

-

YES

Tamper indicating enclosure opening

-

YES

3. Functional requirements of the PSU.

The buffer power supply for fire alarm systems has been designed in accordance with the following

standards:

- EN 54-4:2001 and / A2:2007 Fire detection and fire alarm systems.

- EN 12101-10:2007 Smoke and heat control systems.

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4. Technical description.

4.1. General description.

The buffer power supply has been designed for an uninterrupted supply of fire alarm systems, smoke and
heat control systems, fire protection equipment and fire automatics requiring stabilized voltage of 24 V DC (± 15%).
The PSU is fitted with two independently protected outputs AUX1 and AUX2, which supply voltage of 27,6 V DC
with a total output current:

Continuous operation

Output current Imax a=2 A

Instantaneous operation

Output current Imax b=3 A

In case of power loss, the PSU switches to battery power, providing uninterruptible power supply. The
PSU is enclosed in a metal casing (color: RAL 3001 - red) with battery housing for two 17 Ah/12 V batteries. The
PSU works with maintenance-free lead acid batteries made with AGM technology or gel technology.

4.2. Block diagram.

The PSU has been manufactured based on a high-efficiency system of DC/DC converter. Applied
microprocessor circuit is responsible for the full diagnostics of the PSU parameters and batteries. The figure below
shows a flowchart of the power supply, along with selected functional blocks which are essential for the proper
functioning of the unit.

Fig. 1. PSU block diagram.

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Component

No.

Description

[1]

PANEL – optical indication connector

[2]

BUZZER – acoustic indication (section 7.2.2)

[3]

V

EXT

jumper – polarization of the EXTi circuit (section 6.6)

[4]

F

BAT

– fuse in the battery circuit, F6,3 A / 250 V

[5]

F

AUX1

– fuse in the AUX1 output circuit, F5 A / 250 V

[6]

F

AUX2

– fuse in the AUX2 output circuit, F5 A / 250 V

[7]

SERIAL – communication port

[8]

Z2 jumper

– temporary lock of the battery test (section 8.5)
– The EXTo relay switch lock from the PowerSecurity application-level (section 7.2.3)

[9]

OVP – overvoltage protection optical indication (section 6.9)

[10]

LEDs – optical indication:
AC – AC power

AUX1 – AUX1 output voltage
AUX2 – AUX2 output voltage
OVL – PSU overload
APS – battery failure

PSU – PSU failure
ALARM – collective failure
EXTi – EXTi input status
EXTo – EXTo relay output status
LB – battery charging

[11]

Terminals:
~AC~ – AC power input
EPS FLT – technical output of AC power failure

indication
open = AC power failure
close = AC power - O.K.
PSU FLT – technical output of PSU failure indication
open = failure
close = PSU operation - O.K.
APS FLT – technical output of battery failure
open = battery failure
close = battery status - O.K.
ALARM – technical output of collective failure of the
PSU - relay type

CAUTION! In Fig.2 the set of contacts shows a
potential-free status of the relay, which
corresponds to power supply failure.

EXTo – controlled relay output
EXTi – input of collective failure
+BAT- – terminals for connecting the battery
+AUX1- – AUX1 power output

(+AUX1= +U, -AUX=GND)
+AUX2- – AUX2 power output
(+AUX2= +U, -AUX=GND)

[12}

TAMPER – antisabotage protection microswitch connector (section 6.7)

[13]

Connector– for connecting the EMC filter

4.3. Description of components and power supply terminals.

Table 1. Components of the Power supply PCB (Fig. 2).

Fig. 2. The view of the PSU’s PCB.

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Element

No.

Description

F

MAINS

fuse in the power supply circuit 230 V, T3,15 A / 250 V

L-N power supply connector 230 V, protective connector

Connector– for connecting the PSU.

Table 2. Components of the PCB of the EMC filter (Fig. 3).

Fig. 3. The view of the EMC filter.

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Component

No.

Description

[1]

Isolation transformer

[2]

Printed Circuit Board (see Table 1, Fig. 2)

[3]

Battery temperature sensor.

[4]

Space to install an additional module:
“INTR”, “INTE”, “INTW”,

[5]

Place to install the EN54-LB4 or EN54-LB8 fuse module

[6]

TAMPER; microswitch (contacts) of antisabotage protection (NC)

[7]

EMC filter module (see Table 2, Fig. 3)

[8]

2x17 Ah batteries

[9]

Embossing for cable gland

[10]

Embossing for cable gland (WiFi antenna or cable communication interface)

[11]

Embossings for concealed wires

[12]

Lock

[13]

Battery connectors; positive: +BAT = red, negative: - BAT = black

Table 3. Elements of the PSU (see Fig. 4).

Fig.4. The view of the PSU.

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CAUTION!
Before installation, cut off the voltage in the 230 V power-supply circuit.
To switch power off, use an external switch, in which the distance between the contacts of
all poles in the disconnection state is not less than 3mm

5. Installation.

5.1. Requirements.

The PSU is to be mounted by a qualified installer, holding relevant permits and licenses (applicable and
required for a given country) for ~230 V in and low-voltage installations.

As the power supply is designed for a continuous operation and is not equipped with a power­switch, therefore, an appropriate overload protection in the power supply circuit should be provided. Moreover, the
user should be informed how to disconnect the power supply unit from the mains supply (usually by assigning an
appropriate fuse in the fuse box). The electrical system shall be made in accordance with applicable standards and
regulations. The power supply should operate in a vertical position in order to provide free and convectional
air flow through ventilating holes of the casing. If necessary, it is possible to permanently disconnect the battery
from the power supply systems by removing the F

As the PSU performs a periodic battery test, measuring the resistance of connections, special attention
should be paid to the proper installation of the cables. Installation cables should be firmly connected to the battery
side terminals and to the power supply connector.
The side walls of the housing include the embossings, which should be used to carry out installation cables. Use a
blunt instrument to make an opening for cable gland from the outside of the housing. Then, carefully mount the
cable gland, protecting the PSU from water penetration, in the opening.

BAT

fuse.

Fig. 5. The method of forming an opening for cable gland.

The PSU is fitted with PG9 and PG11 cable glands. Gland size should be chosen depending on the cross­section of the cable. Single cable gland can be used for only one wire.

Fig. 6. Recommended types and sections of installation cables PG9 and PG11 for cable glands.
The PSU is protected against access to the configuration menu through two-level passwords. If

the default settings should be changed, unlock access by entering the service password – see Table 5
and section 7.1.

5.2. Installation procedure.

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Environmental class EN 12101-10:2007

2

Operating temperature

-5 ºC...+75 ºC

Storing temperature

-25 ºC...+60 ºC

Relative humidity

20 %...90 %, no condensation

Sinusoidal vibrations during operation:
10 ÷ 50 Hz
50 ÷ 150 Hz

0,1 G
0,5 G

Surges during operation

0,5 J

Direct insolation

unacceptable

Vibrations and surges during transport

According to the PN-83/T-42106 standard

Delay time for EPS technical output
indicating AC power loss

10s

See section 7.2.4.

Acoustic indication

ON

See section 7.2.2.

EXTo output

OFF

See section 7.2.3.

Communication address

1

See section 7.2.5.

Transmission

115.2k 8E1

See section 7.2.6.

Backlight

Constant – 50%

See section 7.3.4.

Blinking light indicating failure

ON

See section 7.3.4

Passwords:

- user password

- service password

- keyboard lock

1111
1234
NO

See section 7.1

It is required to install an installation switch with a nominal current of min. 3 A in the power supply circuits

outside the power supply unit.

1. Mount the PSU in a selected location with use of special metal expansion bolts. Do not use PVC dowels.

2. Connect the power cables (~230 V) to L-N terminals of the PSU. The cable length inside the housing
should not exceed 10 cm. Connect the ground wire to the terminal marked with grounding symbol. Use a
three-core cable (with a yellow and green protection wire) to make the connection.

The shock protection circuit shall be done with a particular care: the yellow and green wire coat of
the power cable should be connected to the terminal marked with the grounding symbol on the
PSU enclosure. Operation of the PSU without the properly made and fully operational shock protection
circuit is UNACCEPTABLE! It can cause damage to the equipment or an electric shock.

3. Connect the receivers’ cables to the AUX1 and AUX2 output terminals on the PSU board.

4. If needed, connect the cables from the devices to the technical inputs and outputs:

- ALARM; technical output of collective failure of the PSU

- EPS FLT; technical output of AC power loss indication

- PSU FLT; technical output of PSU failure.

- APS FLT; technical output of the battery failure.

- EXTi; input of collective failure

5. Install the batteries in a designated area of the enclosure (see Fig. 4). Connect the batteries with the PSU
paying special attention to the correct polarity. Batteries must be connected in series using the special
cable (included).

6. Switch on the ~230 V supply. The corresponding LEDs on the power supply PCB should be ON: green AC
and green AUX1 and AUX2. Green LB LED should light up while charging.

7. Check the current consumption of the receivers, taking into account the battery charging current, so as not
to exceed the total current efficiency of the PSU (see section 4.1).

8. Once the tests are completed, close the enclosure.

Table 4. Operation parameters.

Table 5. Factory settings of the PSU.

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- moves the pointer on the screen

- next screen selection

- selection approval

- quit editing without saving

- starts preview mode

- green LED indicating ~230 V power

- green LED AUX1 indicating power at the AUX1 output of the PSU

- green LED AUX2 indicating power at the AUX2 output of the PSU

- yellow LED ALARM indicating collective failure

6. Functions.

6.1. Control Panel.

The PSU features a panel with buttons and LCD display, enabling reading of all the available electrical

parameters. The panel buttons are used to select and confirm the parameters, which should be displayed

Fig. 7. Control panel.

Table 6. The description of the buttons and LEDs of the LCD panel.

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Screen field

Operating status

Failure status

The indicator displays 230 V mains

supply voltage measurement.

Blinking „AC” icon.

Information about the current voltage at

the AUX1 and AUX2 outputs and total

power consumption.

The parameter, which value has been

exceeded, is blinking.

Information about the current state of

battery charge.

Blinking icon.

The value inside the symbol informs

about the maximum power supply

capacity.

The blinking warning symbol is displayed.

Fuse icon - blinking

Clock

6.2. First run of the PSU – language selection screen.

During the first run of the PSU, language selection screen will be displayed.
Use the „<” or „>” buttons to select the available languages. After selecting the appropriate language, confirm by
pressing the "SET" button. The main screen will be displayed.

Fig. 8. Language selection screen.

If the language selection is not done, language selection screen will be displayed on the next startup. If the
choice has already been made, language selection can be done as explained in section 7.3.1.

Language selection screen can be displayed by simultaneously pressing the „<” and „>” buttons for a minimum

time of 5 seconds.

6.3. Main screen of the LCD.

Main screen of the LCD displays the basic electrical parameters and indicates the current status of the
power supply.

Fig. 9. Main screen of the LCD.

The resolution of voltage and current measurement is 0.1 V and 0.1 A, respectively. The
displayed values of voltages and currents should be treated with caution; if a greater accuracy is
required, use a multimeter.

Table 7. The description of the main screen symbols.

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6.4. Information displayed on the LCD panel.

6.4.1. Preview menu.

Pressing the „ESC” button at the bottom of the display starts the preview menu, allowing to choose one of

the four available PSU screens.

Use the „<” or „>” buttons to choose a proper screen and press the „SET” button to confirm.

- current parameters of the PSU

(see section 6.4.2)

- current failures of the PSU

(see section 6.4.3)

- parameters of the PSU stored in the memory

(see section 6.4.4)

- History of events
(see section 6.4.5)

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Screen field

Description

Additional

information

- ~230 V power ON
(highlighted = ~230 V power on)

See section 7.2.4

- Battery charging indication
(highlighted = battery charging)

- PSU overload indication
(highlighted = PSU overload)

- Indication of exceeding the „Imax a” current
(flashing = „Imax a” exceeded)

See section:

6.10,

6.11

- PSU failure indication
(highlighted = PSU failure)

See sections:

6.4.6

6.5

- Battery failure indication
(highlighted = battery failure)

See sections:

6.4.6

6.5

- EXTi input status indication
(highlighted = EXTi input activated)

See sections:

6.4.6

6.6

Current electrical parameters of the PSU:

UAC – mains supply voltage (~230 V)
U

BAT

– battery voltage

T

BAT

– battery temperature

R

BAT

– resistance of the battery circuit

U

AUX1

– AUX1output voltage

U

AUX2

– AUX2 output voltage

I

AUX

– total output current

See section:

6.4.4

The status of the technical outputs:
EPS - AC power indication

open= AC power failure

closed = AC power – O.K.
PSU – PSU failure indication
open= PSU failure
closed = PSU working correctly O.K.
APS – battery failure indication
open= battery failure

closed = battery O.K.

ALARM – collective failure indication

CAUTION! The set of contacts shows a potential-free status

of the relay, which corresponds to power supply failure.

EXTo – relay output status indication

See sections:

6.4.6

6.5

TAMPER input status (highlighted = activated)

See section:

6.7

6.4.2. LCD screen – current parameters .

To set the screen, press the „ESC” button, use the „<” or „>” buttons to choose the icon and press the

„SET” button to confirm.

The screen displays electrical parameters and the status of the technical outputs during operation.
Illumination of an element informs about an activation and reflects the status of LEDs on the PCB of the PSU (see
Table 1, [10]).

Fig 10. LCD panel – PSU parameters.

Table 8. The description of the screen symbols - current parameters of the PSU.

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6.4.3. LCD screen – current failures .

In case of abnormal electrical parameters during the operation, the PSU will indicate a failure by displaying a
message on the LCD, turning on the red LED ALARM on the panel, activating acoustic indication (if enabled) and
changing the status of a dedicated technical output.

Fig. 11. Message indicating blown fuse at the AUX2 output.

At a given time, multiple failures can occur. To check which faults are indicated, choose the current failures of
the PSU screen.

To do that, press the „ESC” button, use the „<” or „>” buttons to choose the icon and press the „SET”
button to confirm.

Fig. 12. LCD screen – current failures of the PSU.

The screen displays the codes and descriptions of failures. The display order of failures is arranged by priority
of importance. The first failures in the display order are of the highest priority.

If there are more than five failures at the same time, use the „<” or „>” buttons to display the next failure.

6.4.4. LCD screen – history of the parameters .

To set the screen, press the „ESC” button, use the „<” or „>” buttons to choose the icon and press the

„SET” button to confirm.

Fig. 13. Screen of the history of PSU’s parameters.

During normal operation, the PSU records voltage and current parameters at the output circuits and saves them in
the internal non-volatile memory. The saving is repeated in 5 minutes intervals and the internal memory can store
up to about 6144 values. The memory works in a circular cycle - when the memory is full, the oldest entries
are replaced with the newest ones.

The screen of the parameters history enables reading of the stored parameters and scanning the values on
a chart. The screen features a time axis, located horizontally in the bottom part of the chart, and a
parameter axis, located vertically in the left. Use the „<” or „>” buttons to move the cursor into various time points
and read the value of the measurement.

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Fig. 14. Screen of the history of PSU’s parameters.

In order to change the displayed parameter, highlight its name by pressing the „SET” button and use the
„<” or „>” buttons to choose the requested parameter. Pressing the „SET” button again will highlight the time

range of the chart, which also can be changed with the „<” or „>” buttons. Pressing the „SET” button again will
enable moving the cursor (vertical dotted line on the chart) along the time line with the „<” or „>” buttons. The
values of current parameter and the recording time pointed by the cursor will also be highlighted

Among the available positions on the chart, it is possible to view the following values:

- current - the value measured at the end of the measuring cycle

- minimum - the lowest value measured during 5 minutes

- maximum - the highest value measured during 5 minutes

of the following parameters:

- UAC - mains supply voltage (~230 V)

- U

- U

- mains supply voltage - minimum

AC MIN

- mains supply voltage - maximum

AC MAX

- U

- U

- U

- AUX1 output voltage

AUX1
AUX1 MIN
AUX1 MAX

- AUX1 output voltage, minimum

- AUX1 output voltage, maximum

- U

- U

- U

- AUX2 output voltage

AUX2
AUX2 MIN
AUX2 MAX

- AUX2 output voltage, minimum

- AUX2 output voltage, maximum

- I

- output current

AUX

- I

- I

- output current, minimum

AUX MIN

- output current, maximum

AUX MAX

- U

- battery voltage

BAT

- U

- U

- battery voltage, minimum

BAT MIN
BAT MAX

- battery voltage, maximum

- T

- battery temperature

BAT

- T

- T

- battery temperature, minimum

BAT MIN

- battery temperature, maximum

BAT MAX

- R

- resistance in the battery circuit

BAT

To optimally read and analyze the values shown in the chart, it is possible to change the time range on the
bottom axis of the chart. The following ranges are available:

<8h>
<24h>
<2days>
<week> (weekly)

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6.4.5. LCD screen – history of events .

In case of abnormal electrical parameters during the operation, the PSU will indicate a failure by displaying
a message on the LCD, periodically turning on and off the LCD backlight, turning on the red LED ALARM on the
panel, activating acoustic indication (if enabled) and changing the status of a dedicated technical outputs.

To choose the history of events screen, press the „ESC” button, use the „<” or „>” buttons to choose the

icon and press the „SET” button to confirm.

Fig. 15. The history of events screen.

The history of events screen enables overviewing the events recorded by the internal diagnostic system.
The internal memory can store up to 2048 events, carrying information about the fault type, time of occurrence and
the values of other electrical parameters. In addition, the diagnostic system assigns the failure code for a particular
event on the basis of the stored parameters.

In order to preview the history of events, use the „<” or „>” buttons. It can be done in two modes: short
mode (date, time, code, fault description) or full mode - with additional information about electrical parameters and
status of inputs and outputs. To switch between the modes, press the „SET” button.

Fig. 16. Description of the history of events screen.

Section 6.4.6 lists all codes that may occur during the operation of the PSU. The individual codes are
accompanied by appropriate optical indication on the panel, acoustic indication and activation of a dedicated
technical output.

The memory of the new power supply remembers the events that are the result of the efficiency tests
carried out at the production stage.

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Failure

code

Information

Technical output

activation

Causes

Additional

information

F01

AC power fail!

EPS FLT,

ALARM

- No AC mains supply

- Blown F

MAIN

fuse

F02

AUX1 fuse fail!

PSU FLT,

ALARM

- Blown F

AUX1

fuse

AUX2 fuse fail!

- Blown F

AUX2

fuse

F03

BAT fuse fail!

APS FLT, ALARM

- Blown F

BAT

fuse

- Short circuit in the battery circuit

- Short circuit in the AUX output circuit

F04

Output overload!

PSU FLT,

ALARM

- PSU overload

See section 6.10

F05

Battery
undercharged!

APS FLT,

ALARM

- Spent batteries

- Undercharged batteries

See section 8

F06

High AUX1
voltage!

PSU FLT,

ALARM

- Output voltage over 29.2 V
High AUX2

voltage!

F08

Charge circuit fail!

PSU FLT,

ALARM

- The output voltage of the PSU set too low,
below 26 V

- Battery charging circuit failure

F09

Low AUX1
voltage!

PSU FLT,

ALARM

- Output voltage below 26 V
Low AUX2

voltage!

F10

Low battery
voltage!

APS FLT,

ALARM

- The battery voltage has dropped below
23 V (during battery-assisted operation

F11

Low battery volt. –
off!

APS FLT,

ALARM

- the battery voltage has dropped below 20 V
(during battery-assisted operation)

See section 8.4

F12

External input
EXTi!

ALARM

- Activation of the input of collective failure:
EXTi

See section 6.6

F14

Temp. sensor
fault!

PSU FLT,

ALARM

- Faulty temperature sensor

- Temperature sensor disconnected

See section 8.7

F15

High battery
temp.!

PSU FLT,

ALARM

- Too high ambient temperature of the PSU.

- Overloaded batteries.

- Faulty batteries.

See section 8.7

F16

No battery!

APS FLT,

ALARM

- Disconnected batteries

See section 8.1

F17

Battery fail!

APS FLT,

ALARM

- Deeply discharged batteries, voltage below
20 V

See section 8

F18

High batt. circuit
resist.!

APS FLT,

ALARM

- Spent batteries

- Loose cables connecting the batteries

See section 8.6

F19

High AC voltage!

PSU FLT,

ALARM

- Mains supply over 254 V AC

F20

Low AC voltage!

PSU FLT,

ALARM

- Mains supply below 195 V AC

F21

PSU cover
opened!

PSU FLT,

ALARM

See section 6.7

F50-F54

Internal supply fail!

PSU FLT,

ALARM

- service codes

F60

No communication

PSU FLT,

ALARM

- no communication with LCD panel

F61-F64

Control panel fail

PSU FLT,

ALARM

- service codes

F65

Access unlocked

- passwords unlocked

6.4.6. List of failure codes and information messages.

The PSU indicates the operation status with the appropriate code. The codes are divided into two

groups,marked with the initial letters "F" or "I”.

The codes beginning with the letter "F" indicate a failure. The codes that begin with the letter "I" indicate the

correct operation of the PSU or repaired fault, involving, for example, fuse replacement: "I03 - BAT fuse replaced”.

Table 9. List of PSU failure codes.

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Message

code

Description

I00

Power supply start-up

I01

AC power back

I02

AUX fuse replaced

AUX2 fuse replaced

I03

BAT fuse replaced

I04

Battery connected

I05

Battery OK

I06

Battery temperature OK

I07

AC voltage OK

I08

EXTo output ON

I09

EXTo output OFF

I10

Battery test – START

I11

PSU cover closed

I12

Imax_a over limit

I13

Iaux decr. below Imax_a

Table 10. List of PSU message codes.

6.5. Technical outputs.

The PSU is equipped with galvanically isolated indication outputs changing status after a specified event:

 EPS FLT – output indicating 230 V power loss.

The output indicates 230 V power loss. Under normal status, with the 230 V power on, the output is
closed. In case of power failure, the PSU will switch the output into the open position after a time lag
determined in the „ Delay time for EPS output” menu (see section 7.2.4).

 APS FLT – output indicating battery failure.

The output indicates a failure in the battery circuit. Under normal status (during correct operation) the

output is closed. In case of failure, the PSU will switch the output into the open position. Failure can be triggered by
the following events:

- faulty batteries

- undercharged batteries

- disconnected batteries

- high resistance of the battery circuit

- battery voltage below 23 V during battery-assisted operation

- blown battery fuse

- no continuity in the battery circuit

 PSU FLT – output indicating PSU failure.

The output indicates the PSU failure. Under normal status (during correct operation) the output is
closed. In case of PSU failure, it will switch into the open position. Failure can be triggered by the
following events:

- U

- U

AUX1, AUX2
AUX1, AUX2

- battery charging circuit failure

- blown F

- exceeding the rated current of the PSU

- activation of overvoltage protection OVP

- mains supply voltage over 254 V AC

- mains supply voltage below 195 V AC

- to high battery temperature (>65 °C)

- temperature sensor failure, t < -20 °C or t > 80 °C

- enclosure opening – TAMPER

- internal damage of the PSU

- LCD panel damage

output voltage below 26 V
output voltage over 29,2 V

AUX1

or F

AUX2

fuse

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The technical outputs have been made with galvanic isolation between the PSU’s systems and the
attached devices.

Fig. 17. Electrical diagram of technical outputs.

 ALARM - technical output of collective failure indication.

Output indicating collective failure. In the case of failure at any EPS, APS, or PSU output or at the EXTi
input, the collective failure signal ALARM will be generated.

CAUTION! In Fig.2 the set of contacts shows a potential-free status of the relay, which
corresponds to power supply collective failure of the PSU.

6.6. Input of collective failure EXTi.

The EXT IN (external input) technical input indicating collective failure is intended for additional, external

devices that generate the failure signal. The voltage appearing at the EXT IN input will trigger PSU failure, storing
the information about the event in the internal memory and sending the signal about the failure to the ALARM
output.

The EXT IN technical input has been made with galvanic isolation between the PSU’s systems and the

attached devices.

Fig. 18. Electrical diagram of the EXT IN input.

The connection of external devices to the EXT IN input is shown in the electrical diagram below. OC

outputs (open collector) or relay outputs can be used as the source of the signal.

Fig. 19. Examples of connections.

W In the option with external switch, the V

jumper, which polarises the EXT IN input circuit and

EXT

is required in such configuration, must be on.

The EXTi input has been adjusted to work with fuse modules generating a failure signal in case of blown

fuse in any of output sections (see section 6.8.). To guarantee a correct cooperation between the fuse module and
the EXTi input, the connections shall be made as presented in the diagram below and the V

jumper must be on.

EXT

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Fig. 20. Example of a connection with the fuse module EN54-LB8.

6.7. Indication of the enclosure opening - TAMPER.

The PSU is fitted with the microswitch tamper indicating enclosure opening.
The tamper cable is not connected to the terminal in the factory settings. In order to activate tamper,

remove the jumper from tamper terminal (Fig. 2 [12]) and plug in the tamper cable.

Each opening the enclosure will generate a failure signal at the PSU FLT and ALARM technical outputs

and will save the event in the internal memory of the PSU.

6.8. Increasing the number of outputs with optional EN54-LB4 or EN54-LB8 fuse

modules.

The PSU has two independently protected outputs for connecting the AUX1 and AUX2 receivers.

If the power supply unit is connected with more receivers, then it is recommended to secure each of them with
independent fuse. This solution will protect the power supply system, while the damage to only one receiver (short­circuit on the line) could cause damage to other receivers connected to the same output.

The solution is provided by the optional fuse module EN54-LB4, 4-channel or EN54-LB8, 8-channel, while

its mounting location is provided within the housing (see Fig. 4). The figure below shows the connection between
the power supply, fuse module and receivers.

Fig.21. The connection of fuse module.

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When installing the fuse module in the PSU, power supply current consumption, used for the
calculation of standby time (see section 8.8), should be taken into account.

Depending on the version, fuse module allows to connect 4 or 8 receivers to the PSU. Output state is indicated by
green LEDs.
Blown fuse is indicated as follows:

- corresponding LED turns off: L1 for AUX1 etc.

- red LED on

- PSU technical output on (Hi-Z state)

- switching PSU relay output into voltage free status (contacts as shown in the Fig. 21).
In addition, blown fuse signal is transmitted to the input of collective failure EXTi (ALARM) and saved in the

internal memory of PSU.

The PSU’s relay output can also be used for remote control, including external optical indication.

6.9. Overvoltage protection of the PSU output OVP.

In case of voltage exceeding 30,5 V±0.5 V at the switching regulator’s output, the system cuts off

the power at the outputs to protect the battery and the receivers from damage. The outputs will be battery­powered. The activation of the protection system is indicated by the OVP yellow LED on the PCB board, and the
PSU FLT and ALARM outputs.

6.10. PSU overload.

The PSU is fitted with the LED OVL (overload) on the PCB, informing about output overload. If the

nominal current of the PSU is exceeded, the led turns on and the microprocessor starts a specially
implemented procedure. Depending on time and overload level, microprocessor may disconnect the AUX1 and
AUX2 outputs and switch into the battery-assisted operation. Restart will occur after 1 minute.
PSU overload is indicated by the PSU FLT and ALARM technical outputs.

6.11. Indication of exceeding the „Imax a” current.

Exceeding the "Imax a" output current during the power supply operation is indicated by the

microprocessor using the LED OVL light (overload) on the PCB after 30 seconds. In addition, the main screen of
the LCD will display a blinking light:

I

MAX_A

Information about exceeding the „Imax a” current is stored in the history of events. Battery charge current is

limited in order to protect the power supply against overload.

!

6.12. Short-circuit of the PSU output.

In case of short-circuit of the AUX1 or AUX2 output, one of the fuses - F

permanently blown. The restoration of the voltage at the output requires the replacement of the fuse .

AUX1

or F

– becomes

AUX2

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PASSWORD

Access range

„Control panel”

settings

PSU settings

SERVICE





USER



-

7. PSU settings.

The PSU has a configuration menu, allowing to configure the PSU settings by changing or activating

certain parameters. To enter the setting mode, press the "SET" button from the main screen’s level.

Fig. 22. PSU settings screen.

7.1. Password.

The PSU supports two levels of access to configuration, which limit the possibility of changing the

PSU’s settings from the LCD panel. Both levels are protected by a separate password.
Service password – full access to the PSU’s settings

User’s password – locked access to the „PSU” settings menu

Table11. Access ranges.

Preset passwords:

user’s password – 1111
service password – 1234

7.1.1. Entering the password.

If the access to the configuration of the power supply has been blocked by the activation of the service or
user password, perform the following steps in order to unlock the PSU configuration:

- use the „<” or „>” buttons to display the
Password (enter/change) menu

- press the „SET” button, another window with available
levels of passwords will be displayed

- use the „<” or „>” buttons to choose the right
level of password

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- confirm by pressing the "SET" button

- use the „<” or „>” buttons to enter the first digit

- confirm by pressing the "SET" button

- use the „<” or „>” buttons to enter the second digit

- confirm by pressing the "SET" button

- use the „<” or „>” buttons to enter the third digit

- confirm by pressing the "SET" button

- use the „<” or „>” buttons to enter the fourth digit

- confirm by pressing the "SET" button

If the entered password is wrong, the following message will be displayed:

Fig. 23. The message after entering a wrong keyboard password.

After entering the correct password, it is possible to access the settings. If no buttons are pressed within

5 minutes, the PSU settings will be locked automatically.

7.1.2. Changing the password.

After entering the correct password, it is possible to change it. To do this, choose a password that will be

changed (user’s password or service password) and enter the new one

7.1.3. Disabling the password.

If the password is not required, it can be turned off. The access to the settings will not be locked after 30

seconds of inactivity.
To disable the password, type „0000” as a new password.

User password „0000” unlocks the access from the user level.
Service password „0000” unlocks the access from the installer level.

7.1.4. Resetting passwords.

If, for any reason, the passwords have been lost, it is possible to reset the passwords.
To do this:
a) unplug the PSU from the AC network and the batteries for at least 10 seconds
b) put the Z2 jumper on the PCB of the PSU (see Fig. 2 [8])
c) plug in the batteries and the PSU to the AC network
d) remove the Z2 jumper within 5 seconds from switching on the PSU
e) The PSU will display a message: „Access unlocked”,
f) confirm by pressing the „SET” button
g) go to the menu „Settings -> Password” and change the passwords.

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7.1.5. Keyboard lock.

When entering passwords, it is possible to choose whether the buttons on the front panel of the PSU's

should be locked. It is enabled by „Keyboard password” option.

- use the „<” or „>” buttons to display the
Keyboard lock menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to select:

YES – keyboard lock ON
NO – keyboard lock OFF

- confirm by pressing the "SET" button

When on, the keyboard will be locked automatically if no buttons are pressed within 5 minutes. After

this time, pressing any button on the control panel will display a window with keyboard password request. Enter the
password using the „<” or „>” buttons as explained above.

Fig. 24. Keyboard password request.

Entering the correct user’s password unlocks the access to the settings from the user level, while entering

the correct service password unlocks the access to the settings from the installer level – full access.

The PSU settings will be locked automatically if no buttons are pressed within 5 minutes.

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Position

Description

Additional

information

Battery test

START – battery test activation (see section 5.5)

Section

7.2.1 and 8.5

Acoustic
indication

YES – acoustic indication ON (see section 4.6)
NO – acoustic indication OFF

Section

7.2.2

EXTo output

ON – output ON (see section 4.9)
OFF – output OFF

Section

7.2.3

Delay time for
EPS output

Setting the delay time for ~230 V power failure indication

- 10s (factory setting)

- 1min

- 10min

- 30min

Section

7.2.4

Communication
address

1÷ 247 PSU address required during the communication with the computer

1 – factory setting

Section

7.2.5

Transmission

Defines the speed and protocol of communication

9.6k 8N2

9.6k 8E1

9.6k 8O1
:

115.2k 8N2

115.2k 8E1 (factory setting)

115.2k 8O1

Section

7.2.6

7.2. PSU.

The “PSU” menu is only available after entering the correct service password.

Selecting the “PSU” in the settings menu will display another menu, allowing full configuration of the PSU;

battery test ON/OFF, acoustic indication ON/OFF, EXTo output ON/OFF, setting the delay time for EPS output,
setting the communication parameters. After entering the right settings, they are stored in the internal non-volatile
memory, which protects the PSU against data loss in case of a failure or power failure.

Fig. 25. „PSU” screen.

Table 12. The description of the „PSU” screen.

7.2.1. Battery test activation.

Battery test menu activates the test of the batteries (see section 8.5) connected to the PSU. If the test is

negative, it is indicated by the appropriate message, acoustic indication and activation of the APS FLT and ALARM
technical outputs.

- use the „<” or „>” buttons to display the Battery test menu

- press the „SET” button, the prompt will appear at the end of the line

- confirm by pressing the „SET” button
(the battery test follows immediately)

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No.

Description

Event

1

1 signal every 10s, battery mode

AC power failure

2

1 signal every 10s, mains
operation

Battery failure, undercharged batteries

3

2 signals every 10s, battery mode

Low battery level

4

Fast signals, battery mode

The PSU will be disconnected because of the battery discharge

5

Constant indication

PSU failure [section 6.4.6.]

- When performing the test, the LCD will display the ”WAIT” message.

7.2.2. Acoustic indication ON/OFF

Emergency situations that may arise during the operation of the PSU are indicated acoustically. The

frequency and number of signals depend on the type of event (see section 6.4.6.).

Table 13. Acoustic indication.

- use the „<” or „>” buttons to display the Acoustic indication menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to select:

YES – Acoustic indication ON
NO – Acoustic indication OFF

- confirm by pressing the „SET” button

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7.2.3. EXTo output ON/OFF
Controlled relay output EXTo (external output) does not depend on the operation of the power

supply unit and can be switched independently of its work.

The EXTo output can be used for switching between controlling, resetting and supplying inputs/outputs in

low-voltage electrical circuits.
Changes in the EXTo output can be made locally from the panel (section 7.2.3.) or remotely using the
PowerSecurity application. In the case of the PowerSecurity application-level control, Z2 jumper must be on.
Information about the changes in the EXTo output is written in the event log of the PSU.

- use the „<” or „>” buttons to display the EXTo output menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to select:

ON – relay ON
OFF – relay OFF

- confirm by pressing the „SET” button

7.2.4. Setting the delay time for EPS output indicating ~230 V power loss.

The PSU features adjustable delay for 230 V power loss indication. The delay time can be selected from

the four available ranges:

- 10s (factory setting)

- 1min

- 10min

- 30min

230 V power loss is indicated by the activation of the “EPS FLT” and „ALARM” technical output.

- use the „<” or „>” buttons to display the Delay time for EPS output menu

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- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to set the delay time:

- 10s

- 1min

- 10min

- 30min

- confirm by pressing the „SET” button

7.2.5. Setting the communication address applies to cooperation with PowerSecurity.

All power supplies are factory-set to address 1.

All the parameters responsible for communication between the PSU and the computer, namely the

address, parity and speed should have the same settings for both the PSU and the PowerSecurity program.
Communication address allows to identify power supply units in the same communication network.

- use the „<” or „>” buttons to display the Communication address menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to set the communication address

1÷ 247 – PSU address during the communication with the computer

- confirm by pressing the „SET” button

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7.2.6. Setting the transmission parameters applies to cooperation with PowerSecurity.

All the parameters responsible for communication between the PSU and the computer, namely the

address, parity and speed should have the same settings for both the PSU and the PowerSecurity program.

The PSU has preset transmission parameters of 115200 baud 8E1; if these values were changed, they

should be restored to original settings.

- use the „<” or „>” buttons to display the Transmission menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to set the transmission speed

- 9.6k 8N1
:

- 115.2k 8E1 (factory setting)
:

- 115.2k 801

- confirm by pressing the „SET” button

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Position

Description

Language

Available languages

Date

Current time

Time

Current date

Backlight mode

5 min - backlight mode OFF if no buttons are pressed within 5 min

constant - the backlight will not be turned off
0÷100% - the intensity of the backlight

Contrast

0÷ 100% - the display contrast

Blinking light indicating
failure

YES –blinking light indicating failure
NO – constant light indicating failure

7.3. Control panel.

The menu is only available after entering the correct user’s or service password.

The „control panel” menu enables configuration of the settings directly related to the user interface. It is

possible to set the display language, date, time, intensity of the backlight and blinking light indicating failure.

Setting the correct date and time is important for keeping chronology of events stored in the internal

memory. Setting the backlight mode and contrast guarantees the quality of the displayed messages.

Intensity of the LCD backlight can be set in the range from 0 to100%, in 10% intervals.

The display features a function of constant or temporary backlight mode. In temporary mode, the screen will turn off
if no buttons are pressed within 5 minute.

Fig. 26. „Control panel” screen.

Table 14. The description of the „Control panel” screen.

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7.3.1. Setting the display language.

One of the functions of the control panel menu is the possibility to select language. Display language can

be set according to personal preference.

- use the „<” or „>” buttons to display the Language menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to choose the display language

- confirm by pressing the „SET” button

To help the user to choose the Display Language, the power supply allows to display the menu of
available languages on the main screen. To do this, simultaneously press and hold for at least 5s the"<"
and ">" arrow keys on the front panel of the power supply.

7.3.2. Setting the date

The „Date” menu in the „Control panel” menu enables setting the correct date, according to which error

messages and operation history will be saved. Built-in real time clock does not take into account leap years and the
changes resulting from the switch between summer and winter time. These changes should be taken into account
when analyzing events recorded in the history.

- use the „<” or „>” buttons to display the Date menu

- press the „SET” button, the prompt will appear
next to the year digits

- use the „<” or „>” buttons to set the year

- press the „SET” button, the prompt will appear
next to the month position

- use the „<” or „>” buttons to set the current month

- press the „SET” button, the prompt will appear
next to the day position

- use the „<” or „>” buttons to set the current day

- confirm by pressing the „SET” button

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7.3.3. Setting the time

The „Time” menu in the „Control panel” menu enables setting the correct time, according to which error

messages and operation history will be saved. Built-in real time clock does not take into account leap year and the
changes resulting from the switch between summer and winter time. These changes should be taken into account
when analyzing events recorded in the history.

- use the „<” or „>” buttons to display the Time menu

- press the „SET” button, the prompt will appear
next to the hour digits

- use the „<” or „>” buttons to set the hour

- press the „SET” button, the prompt will appear
next to the minute position

- use the „<” or „>” buttons to set the minutes

- press the „SET” button, the prompt will appear
next to the seconds’ position

- use the „<” or „>” buttons to set the seconds

- confirm by pressing the „SET” button

7.3.4. Setting the backlight mode.

The „Backlight” menu dims the display if no buttons are pressed within 5 min and sets the intensity of the

backlight.

- use the „<” or „>” buttons to display the Backlight mode menu

- press the „SET” button, the prompt will appear next to the constant< option

- use the „<” or „>” buttons to change the setting to 5 min

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- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to set the required brightness

- confirm by pressing the „SET” button

7.3.5. Contrast setting

The „Contrast” menu in the „Control panel” enables setting the contrast of the display text.

- use the „<” or „>” buttons to display the Contrast menu

- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to set the contrast

- confirm by pressing the „SET” button

7.3.6. Blinking light indicating failure

The „Blinking light indicating failure” menu enables setting the backlight mode during failure indication.

When on, the blinking light will indicate a failure.

- use the „<” or „>” buttons to display the Blinking light indicating failure menu

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- press the „SET” button, the prompt will appear at the end of the line

- use the „<” or „>” buttons to select

YES – blinking light indicating failure ON
NO – blinking light indicating failure OFF

- confirm by pressing the „SET” button

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8. Reserve power supply circuit.

The PSU is fitted with intelligent circuits: battery charging circuit with the function of the accelerated

charging and battery control, which main task is to monitor the condition of the batteries and the connections in the
circuit.
If the controller detects a power failure in the battery circuit, appropriate indication and activation of the APS FLT
and ALARM technical outputs takes place.

8.1. Battery detection.

The control unit of the PSU checks the voltage at the battery terminal and, depending on the measured

values, determines the appropriate reaction:

U

below 4 V - batteries not connected to the PSU circuits

BAT

U

= 4 to 20 V - faulty batteries

BAT

U

over 20 V - batteries connected to the PSU circuits

BAT

8.2. Protection against short -circuit of the battery terminals.

The PSU is fitted with the circuit protecting against short-circuit of the battery terminals. In case of short
circuit, control circuit immediately disconnects the batteries from the rest of the power supply circuit, so the loss of
output voltage on power supply outputs is not observed. Automatic reconnection of the batteries to the PSU's
circuits is only possible after the removal of the short-circuit and correct connection of the circuits.

8.3. Protection against reverse battery connection.

The PSU is protected against reverse connection of the battery terminals. In case of incorrect connection,

the F
replacing the fuse and correct connection of the batteries.

battery terminals drops below 20 V±0.2 V during battery-assisted operation, acoustic indication will be activated
and the batteries will be disconnected within 15s.

restored.

operation mode. During testing, the control unit of the PSU measures the electrical parameters according to the
implemented measuring method.
A negative result occurs when:

- the battery circuit continuity is interrupted,

- resistance in the battery circuit increases above 300 mΩ

- the battery terminal voltage drops below 24 V.
replaced batteries.
undercharging. The protection involves blocking the ability to perform test for 60 seconds from the last activation.

fuse in the battery circuit becomes damaged. The return to normal operation is possible only after

BAT

8.4. Deep discharge battery protection UVP.

The PSU is fitted with the disconnection system and the battery discharge indication. If the voltage at the

The batteries are reconnected to the power supply unit automatically once the ~230 V mains supply is

8.5. Battery test.

The PSU runs dynamic battery test every 5 minutes, temporarily switching the receivers to the battery

The battery test can be activated manually from the main menu (see section 7.2.1), for example to test the
The PSU is protected against too frequent performing of the battery test, which could result in
n this case, the LCD will display the "WAIT” message in the PSU Settings -> PSU -> Battery test menu.

Fig. 27. Temporary lock of the battery test.

This function can be disabled by putting the Z2 jumper on the power supply board (Fig.2 [8]).

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The battery test will also be automatically locked when the PSU is in the operating mode, in which the

battery test is impossible. Such condition occurs, for example, during battery assisted operation or when the power
supply is overloaded.
In this case, the LCD will display the crossed out „START” message in the PSU Settings -> PSU -> Battery test
menu.

Fig. 28. Battery test – inactive.

8.6. Measurement of the resistance of the battery circuit.

The PSU is checking the resistance in the battery circuit. During the measurement, the PSU driver takes into
account the key parameters in the circuit,and once the limit value of 300m ohms is exceeded, a failure is
indicated.

A failure may indicate considerable wear or loose cables connecting the batteries.

8.7. Battery temperature measurement.

The PSU has a temperature sensor to monitor the temperature parameters of installed batteries. The sensor is

located near the batteries; hence, temperature readings should not be confused with the ambient temperature.

Temperature measurement and compensation of the battery charging voltage can extend the life of the

batteries.

8.8. 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, minimum battery capacity to work with the PSU can be calculated with the following formula:

Q

= 1.25 ﴾ ﴾Id + Iz﴿ •Td + ﴾Ia + Iz﴿ •Ta + 0.05 Ic ﴿

AKU

where:

Q

– The minimum battery capacity [Ah]

AKU

1.25 – the factor related to the decrease in battery capacity due to aging

Id – the current drawn by the load during inspection [A]
Iz – PSU current consumption [A] (Table 15)

Td – required inspection time [h]

Ia – the current drawn by the load during an alarm [A]

Ta – alarm duration [h]

Ic – short-term output current

Rearranging the above equation, the approximate runtime of the system with two 17 Ah batteries can be

determined.

The following data can be assumed:

Id = 1 A

Iz = 0,065 A

Ia = 2 A

Ta = 0,5h

Ic = 3 A

The approximate runtime of the system with two 17 Ah batteries will amount to 11h 39min.

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9. Remote monitoring (options: Wi-Fi, Ethernet, RS485, USB).

The PSU has been adjusted to operate in a system that requires a remote control of the parameters in a
monitoring centre. Transmitting data concerning PSU status is possible due to an additional, external
communication module responsible for communication in Wi-Fi, Ethernet or RS485 standard. It is possible to
connect the PSU and the computer via the USB –TTL interface.

Different connection topologies, presented later in this chapter, are only a part of possible communication
schemes. More examples can be found in the manuals dedicated to individual interfaces.

When installing optional features in the power supply unit, power supply current consumption, used
for the calculation of standby time, should be taken into account (see section 8.8).

9.1. Communication via the USB-TTL interface.

The easiest way of communication between the PSU and the computer is provided by the USB-TTL "INTU”
interface. This interface allows direct connection between the computer and the PSU and is recognizable by the
operating system as a virtual COM port.

Fig. 29. USB-TTL communication using the USB-TTL „INTU” interface.

9.2. ETHERNET network communication.

Communication in the Ethernet network is possible due to the additional interfaces: Ethernet „INTE” and

RS485-ETH „INTRE”, according to the IEEE802.3 standard.

The Ethernet „INTE” interface features full galvanic isolation and protection against surges. It should be

mounted inside the enclosure of the PSU.

Fig. 30. Ethernet communication using the RS485-Ethernet „INTE” interface.

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The RS485-ETHERNET „INTRE” interface is a device used to convert signals between the RS485 bus and
the Ethernet network. For proper operation, the unit requires an external power supply in the range of 10÷30 V DC
e.g. drawn from a PSU of the EN54 series. The physical connection of the interface takes place under galvanic
isolation. The unit is mounted in a hermetic enclosure protecting against adverse environmental conditions.

Fig. 31. Ethernet communication using the RS485-Ethernet „INTRE” interface.

9.3. The Wi-Fi wireless communication.

The Wi-Fi wireless communication can be implemented on the basis of additional interfaces: WI-Fi ‘INTW’ and

RS485-WiFi, operating within 2,4GHz frequency band, according to the IDEE 802.11 bgn standard.

The WiFi ‘INTW’ interface shall be mounted in a selected location inside the enclosure so that the

antenna is exposed to the outside.

Fig. 32. The Wi-Fi communication using WI-FI „INTW” interface.

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The RS485-WiFi „INTRW” interface is a device used to convert signals between the RS485 bus and the
WiFi network. For proper operation, the unit requires an external power supply in the range of 10÷30 V DC e.g.
drawn from a PSU of the EN54 series. The physical connection of the interface takes place under galvanic
isolation. The unit is mounted in a hermetic enclosure protecting against adverse environmental conditions.

Fig. 33. The The Wi-Fi communication using the RS485-WIFI „INTRW” interface.

9.4. RS485 network communication.

Another type of network communication is the RS485 communication using two-wire transmission path. To
achieve this kind of data exchange, the PSU should be equipped with the additional RS485 TTL "INTR" interface,
converting data from the PSU into the RS485 standard and the USB-RS485 "INTUR" interface, converting data
from the RS485 network to the USB. Offered interfaces are galvanically isolated and protected against surges.

Fig. 34. RS485 communication using the „INTR” and „INTUR” interfaces.

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9.5. „PowerSecurity” program.

The ”Power Security” program is available on www.pulsar.pl

Its detailed description can be found in the manual.

PowerSecurity is a program designed to operate with power supplies of the PSBEN, EN54 and

EN54C/LCD series.

The graphical interface of the program has been designed so that it is convenient to combine power
supplies into groups giving the possibility of monitoring multiple parameters in one window simultaneously.
The program constantly monitors the parameters of all power supplies; in case of failures the backlight changes
accordingly in both the manager window and the Windows taskbar. In addition, the program allows you to
download the operation history of the power supply, the history of events, and visualization in the form of charts
and tables. The downloaded data can be saved.

The program also provides functionality in the form of a remote battery test. The result of the battery test
takes the form of a message.

The PowerSecurity software is a free software. Operation requires a PC with the operating system
Windows 10 or older.

The application can also be used by people who install and service power supplies. The main panel of the

program is shown below.

Fig. 35. The main panel of the "Power security" program.

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Fig. 36. The main panel of the "Power security" program - the "Synoptic board" tab.

The manager window allows you to combine monitored power supplies into groups / subgroups offering
greater control and transparency for more complex systems.
The device window can be switched between two modes: the synoptic board or the list mode. This is
especially useful when the PowerSecurity program works with a large number of power supplies.
The application enables both visualization and analysis of read data. Exceeding the permissible parameters is
signaled by a change in color of the relevant field to yellow and a flashing indicator light. It is possible to view the
current power supply parameters, historical parameters in the chart, electrical parameters, the status of technical
outputs, and to read the event log on individual tabs.

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Functional class EN 12101-10:2007

A

Mains supply

~230 V

Current consumption

0,56 A

Power frequency

50 Hz

PSU’s power

83 W

Efficiency

84%

Output voltage at
20 ºC

22,0 V÷ 27,6 V DC – buffer operation
20,0 V÷ 27,6 V DC – battery-assisted operation

Output current

Continuous operation

Output current Imax a=2 A

Instantaneous operation

Output current Imax b=3 A

Maximal resistance of the battery circuit

300mΩ

Ripple voltage

90mV p-p max.

Current consumption by the PSU
during battery-assisted operation

I = 65mA
I = 55mA – LCD panel backlight off
Caution ! If the power supply is connected with the
communication interface or fuse module, additional current
consumption should be considered.

Battery charging current

1 A

Coefficient of temperature compensation of the
battery voltage

-40mV/ ºC (-5 ºC ÷ 40 ºC)

Low battery voltage indication

Ubat < 23 V, during battery mode

Overvoltage protection OVP

U>30,5 V±0,5 V - disconnection of the output voltage ( AUX+
disconnection), automatic return

Short-circuit protection SCP

F5 A - F

AUX1

, F

AUX2

melting fuse (failure requires fuse

replacement)

Overload protection OLP

Hardware - Software

Battery circuit protection SCP and reverse
polarity connection

F6,3 A - F

BAT

melting fuse (failure requires fuse replacement)

Deep discharge battery protection UVP

U<20 V (± 2%) – battery disconnection

TAMPER output indicating enclosure opening

Microswitch TAMPER

Technical outputs:

- EPS FLT; indicating AC power failure

- APS FLT; indicating battery failure

- PSU FLT; indicating PSU failure

- ALARM; indicating collective failure

- type – electronic, max 50mA/30 V DC, galvanic isolation
1500 V

RMS

- delay time approximately 10s/1m/10m/30m (+/-5 %) –
configured from the control panel

- type – electronic, max 50mA/30 V DC, galvanic isolation
1500 V

RMS

- type – relay: 1 A@ 30 V DC/50 V AC
CAUTION! In Fig.2 the set of contacts shows a potential-free
status of the relay, which corresponds to power supply failure.

EXTi technical input

Voltage „ON” – 10÷30 V DC
Voltage „OFF” – 0÷2 V DC

Level of galvanic isolation 1500 V

RMS

EXTo relay output

1 A@ 30 V DC /50 V AC

Optical indication:

- LEDs on the PCB of the power supply unit,

- LCD panel
 readings of electrical parameters, including: voltage, current,

resistance of the circuit, mains supply voltagefailure
indication

 failure indication
 configuration of the PSU settings from the control panel
 2 levels of password protected access
 operation memory of the PSU – 6144 values

10. Technical parameters.

Electrical parameters (Table 15).
Mechanical parameters (Table 16).
Safety of use (Table 17).
Operation parameters (Table 18).
Recommended types and sections of installation cables (Table 19).

Table 15. Electrical parameters.

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W

H

D

 failure memo - 2048 events
 real time clock with battery backup

Acoustic indication:

- piezoelectric indicator ~75 dB /0,3 m, switched from the LCD

panel

LCD screen battery

3 V lithium battery, CR2032

Fuses:

- F

MAINS

- F

BAT

- F

AUX1

- F

AUX2

T 3,15 A / 250 V
F 6,3 A / 250 V
F 5 A / 250 V
F 5 A / 250 V

Additional equipment

(not included)

- USB-TTL „INTU” interface; USB-TTL communication

- RS485 „INTR” interface; RS485 communication

- USB-RS485 „INTUR” interface; USB-RS485 communication

- Ethernet „INTE” interface; Ethernet communication

- WiFi “INTW” interface; WiFi wireless communication

- RS485-Ethernet “INTRE” interface; RS485-Ethernet

communication

- RS485-WiFi “INTRW” interface; RS485-WiFi wireless

communication

Enclosure dimensions

W=420 H=420 D+D1 =102 + 8 [+/- 2mm]
W1=425 H1=425 [+/- 2mm]

Mounting

380 x 345 x Φ 6 x4 pieces (WxH)

Recommended battery model

- 2 x EP 17-12 or

- 2 x GP12170

Fitting battery

2x17 Ah/12 V (SLA) max.
400 x 180 x 95mm (WxHxD) max

Net/gross weight

8,4/9,4 kg

Enclosure

Steel plate DC01 1,2mm, color: RAL 3001 (red)

Closing

Key lock

Terminals

Mains supply: Ф0,51÷2 (AWG 24-12)
Outputs: Ф0,51÷2 (AWG 24-12)
Battery outputs BAT: Ф6 (M6-0-2,5)

Cable glands

PG9 – cable diameter Ф4÷8mm
PG11 – cable diameter Ф5÷10mm

Notes

The enclosure does not adjoin the mounting surface so that cables can be led.
Convection cooling.

Table 16. Mechanical parameters.

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Protection class EN 60950-1:2007

I (first)

Protection grade EN 60529: 2003

IP42

Insulation electrical strength:

- between input (network) circuit and the output circuits of the PSU

- between input circuit and protection circuit

- between output circuit and protection circuit

3000 V AC min.
1500 V AC min.
500 V AC min.

Insulation resistance:

- between input circuit and output or protection circuit

100 MΩ, 500 V DC

Environmental class EN 12101-10:2007

2

Operating temperature

-5 ºC...+75 ºC

Storing temperature

-25 ºC...+60 ºC

Relative humidity

20 %...90 %, no condensation

Sinusoidal vibrations during operation:
10 ÷ 50 Hz
50 ÷ 150 Hz

0,1 G
0,5 G

Surges during operation

0,5 J

Direct insolation

unacceptable

Vibrations and surges during transport

According to the PN-83/T-42106 standard

Mains supply ~230 V L-N-PE
(see Table 2 [2])

OMY 3 x 0,75 mm

2

…1,5 mm

2

AUX1, AUX2 output terminals
(see Table 1 [11])

HLGs 2 x 1,5 mm

2

…2,5 mm

2

Indication inputs/outputs
(see Table 1 [11])

YnTKSY 1 x 2 x 0,8 mm2
Additional indication lines (with optional interface)

FTP 4x2x0,5 cat. 5e

Table 17. Safety of use.

Table 18. Operation parameters.

Table 19. Recommended types and sections of installation cables.

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Pulsar sp.j.

Siedlec 150, 32-744 Łapczyca, Polska

Tel. [phone], Fax. [phone]

e-mail: [e-mail], [e-mail]

http:// www.pulsar.pl, www.zasilacze.pl

11. Technical inspections and maintenance.

Technical inspections and maintenance can be performed after disconnecting the power supply from the power
network. The PSU does not require any specific maintenance, however, its interior should be cleaned with
compressed air if it is used in dusty conditions. In case of fuse replacement, use only compatible replacement
parts.

Technical inspections should be carried out not less frequently than once per year. During the inspection,

check the batteries and run the battery test.

4 weeks after installation, re-tighten all threaded connections, see Fig. 2 [11] and Fig. 3 [2].

11.1. Battery replacement of the LCD panel.

Estimated operating time of battery type CR2032 is about six years. After this period, the battery will need

to be replaced.

Battery replacement of the LCD panel should be done during mains operation or battery-assisted operation

in order to avoid resetting the time settings.

CAUTION!
Removed batteries should be stored in a designated collection point. Do not reverse the
polarity of the batteries. Use of the wrong type battery could cause an explosion.

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 unit is adapted for cooperation with the sealed lead-acid batteries (SLA). After the operation

period they must not be thrown but recycled according to the applicable law.