LS4301-7R POWER-ONE [Power-One], LS4301-7R Datasheet - Page 21

• Manufacturer Part Number: LS4301-7R
• Description: 100 Watt AC-DC Converters with PFC
• Manufacturer: POWER-ONE [Power-One]

Cassette Style
-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.
Edition 01/01.2001
Table 14: Leakage currents
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
Table 15: Safety concept leading to an SELV output circuit
1
Description of Options
Table 16: Survey of options
1
2
3
Earth connection
Conditions
Nominal voltage
Mains
The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950.
Characteristic
Maximum earth
leakage current
Function R excludes option P and vice versa
Option D excludes option V and vice versa
Only available if main output voltage U
250 V AC
Option
B1, B2
V
D
P
–9
E
T
2 3
1
2
Mains
Function of option
Extended operational ambient temperature range
Electronic inrush current limitation circuitry
Potentiometer for fine adjustment of output voltage
Input and/or output undervoltage monitoring circuitry
Input and/or output undervoltage monitoring circuitry
Current sharing
Cooling plate
~
~
AC-DC converter
Grade of insulation
between input and output
provided by the AC-DC converter
Double or reinforced
Permissible according to IEC/EN 60950
Specified value at 254 V, 50 Hz
Fuse
Fuse
o1
= 5.1 V
AC-DC
verter
con-
100 Watt AC-DC Converters
SELV
10021
Installation
Measures to achieve the resulting
safety status of the output circuit
Earthed case
according to the applicable standards
+
–
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.
Characteristic
T
Active inrush current limitation
Adjustment range +10/-60% of U
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
P Potentiometer
The potentiometer provides an output voltage adjustment
range of +10/–60% of U
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 U
put control, option P setting, remote sensing or option T, the
output current(s) should be reduced accordingly so that
P
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 .
A
o nom
= –40...71 C
1
and installation
is not exceeded.
LS 4000...LS 5000
Class I
0.82
3.5
o nom
o nom
and is accessible through a
Result
Safety status of the AC-DC
converter output circuit
SELV circuit
Unit
, excludes R input
mA
S Series PFC
o nom
via R-in-
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