User Instructions

ManualsBrandsPulsar Manuals27PSB 27,6V/10A enclosed buffer switch mode power supply unit

PSB-30024100

PSB 27,6V/10A enclosed switch

mode buffer power supply

Edition: 2 from 01.03.2018

Supercedes edition: 1 from 01.08.2015

EN**

Features of the power supply:

 DC 27,6V/10A uninterruptible power supply*

 wide AC input voltage range 176÷264V

 built-in power factor correction system (PFC)

 high efficiency 85%

 controlling of battery charging and maintaining

 protecting of battery against excessive discharging

(UVP)

 battery charging current 1A/2A/4A, changed by

jumper

 forced cooling - built-in fan

 battery output is full protected against short-

circuit and reverse connection

 LED optical signalisation

 protections:

 short-circuit protection SCP

 over voltage protection OVP

 surge protection

 overload protection OLP

 overheat protection OHP

 warranty – 2 year from the production date

1. Technical description.

1.1. General description.

Buffer-type power supply units are intended for continuous power supply to devices that require stabilised voltage

of 24V DC (+/-15%). The power supply provides a voltage of U=27,6V DC with an output current of:

1. Output current of 9A + 1A battery charging.*

2. Output current of 8A + 2A battery charging.*

3. Output current of 6A + 4A battery charging.*

Total device current + battery charging current: 10A max

In case of power voltage decay, prompt switching to battery supply occurs. The power supply is equipped with

short circuit protection, overload protection, overvoltage and thermal overload protection. The power supply is fitted with a

fan for forced cooling, switching on depending on the temperature and the load of the power supply.

1.2. Technical parameters.

Supply voltage

176÷264V AC

Current consumption

1,5A@230VAC max.

Supply power

300W max.

Efficiency

85%

Power factor PF

>0,95 @230V AC

Output voltage

22V÷ 27,6VDC – buffer operation

19V÷ 27,6V DC – battery operation

Output current t

AMB

<30°C

9A + 1A battery charging - see chart 1

8A + 2A battery charging - see chart 1

6A + 4A battery charging - see chart 1

Output current t

AMB

=40°C

6A + 1A battery charging - see chart 1

5A + 2A battery charging - see chart 1

3A + 4A battery charging - see chart 1

Voltage adjustment range

24÷28V DC

Ripple voltage

150mV p-p max.

Battery charging current

1A, 2A or 4A max.

Short-circuit protection SCP

electronic

Overload protection (battery) OLP

glass fuse

Surge protection

varistors

See chart 1

Summary of content (4 pages)

PAGE 1
PSB-30024100 PSB 27,6V/10A enclosed switch mode buffer power supply Edition: 2 from 01.03.2018 Supercedes edition: 1 from 01.08.
PAGE 2
>32V (activation requires disconnecting the load or Overvoltage protection OVP supply for about 20 s.) U<19V (± 5%) – disconnection of battery green LED- presence of AC voltage LED AC- presence of AC voltage LED DC- presence of DC voltage on power supply output 2-nd enviromental class, temperature: -10 oC÷40 oC relative humidity 20%...
PAGE 3
2.2. Installation procedure. 1. Before beginning installation, ensure that the power in the 230V AC power supply circuit is disconnected. 2. Install the unit in the previously selected place. 3. Connect the 230VAC power leads. Connect the PE cable (yellow-green) to an appropriate terminal on the power supply unit (marked with ). The circuit of the shock protection shall be performed with a particular care, i.e.
PAGE 4
3. Maintenance. All maintenance procedures can be performed after the disconnection of the power supply from the electrical grid. The power supply does not require any special maintenance procedures, but in the case of significant dust accumulation, dusting using compressed air is recommended. WEEE MARKING 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. Pulsar sp. j.