LS4699-0P Просмотр технического описания (PDF) - Power-One Inc.

Номер в каталоге

Компоненты Описание

производитель

LS4699-0P

100 Watt AC-DC Converters with PFC

Power-One Inc. 

Cassette Style

100 Watt AC-DC Converters

Table 14: Leakage currents

Characteristic

Maximum earth

leakage current

Permissible according to IEC/EN 60950

Specified value at 254 V, 50 Hz

Class I

Unit

LS 4000...LS 5000

3.5

mA

0.82

S Series PFC

Safety of operator accessible output circuit

If the output circuit of an AC-DC converter is operator ac-

cessible, it shall be an SELV circuit according to the IEC/EN

60950 related safety standards.

The following table shows a possible installation configura-

tion, compliance with which causes the output circuit of an

S series AC-DC converter to be an SELV circuit according

to IEC/EN 60950 up to a configured output voltage (sum of

nominal voltages if in series or +/– configuration) of 36 V.

However, it is the sole responsibility of the installer to as-

sure the compliance with the relevant and applicable safety

regulations. More information is given in: Technical Infor-

mation: Safety.

Table 15: Safety concept leading to an SELV output circuit

Conditions

AC-DC converter

Installation

Result

Nominal voltage

Grade of insulation

between input and output

provided by the AC-DC converter

Measures to achieve the resulting

safety status of the output circuit

Safety status of the AC-DC

converter output circuit

Mains

≤250 V AC

Double or reinforced

Earthed case 1 and installation

according to the applicable standards

SELV circuit

1 The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950.

~

Mains

~

Earth connection

Fuse

Fuse

AC-DC

con-

verter

10021

+

SELV

–

Fig. 30

Schematic safety concept. Use fuses and earth connec-

tion as per Installation Instructions and table Safety con-

cept leading to an SELV output circuit.

Description of Options

Table 16: Survey of options

Option Function of option

–9

Extended operational ambient temperature range

E

Electronic inrush current limitation circuitry

P1

Potentiometer for fine adjustment of output voltage

D2

Input and/or output undervoltage monitoring circuitry

V 2 3 Input and/or output undervoltage monitoring circuitry

T

Current sharing

B1, B2 Cooling plate

1 Function R excludes option P and vice versa

2 Option D excludes option V and vice versa

3 Only available if main output voltage Uo1 = 5.1 V

Characteristic

TA = –40...71°C

Active inrush current limitation

Adjustment range +10/-60% of Uo nom, excludes R input

Safe data signal output (D0...DD)

ACFAIL signal according to VME specifications (V0, V2, V3)

Interconnect T-pins if paralleling outputs (5 units max.)

Replaces standard heat sink, allowing direct chassis-mounting

-9 Extended Temperature Range

Option –9 extends the operational ambient temperature

range from –25...71°C (standard) to –40...71°C. The power

supplies provide full nominal output power with convection

cooling. Option -9 excludes inrush current limitation by

NTC.

P Potentiometer

The potentiometer provides an output voltage adjustment

range of +10/–60% of Uo nom and is accessible through a

hole in the front cover. This feature enables compensation

for voltage drops across the connector and wiring. Option P

is not recommended if units are connected in parallel.

Option P excludes the R-function. With double output units

both outputs are affected by the potentiometer setting (dou-

bling the voltage setting if the outputs are in series).

If the output voltages are increased above Uo nom via R-in-

put control, option P setting, remote sensing or option T, the

output current(s) should be reduced accordingly so that

Po nom is not exceeded.

Edition 01/01.2001

21/27

Share Link: