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multiple outputs. LX550 Datasheet |
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[ 2 YEAR WARRANTY ]
LX550 SERIES
Flexible single and multiple outputs
• 550W continuous output power
• Industry standard footprint, low profile
• Conducted noise to meet EN55022 class B
• AC and DC input voltage options in same package
• Efficiency up to 88%
• Optional power sharing/VME signals
• Autoranging input
The LX550 family offers 550 Watts of continuous output power in a low profile
industry standard footprint. Cover and fan assembly and over temperature
protection are fitted as standard. With two standard single output options, and a
flexible standard multiple output, the series can address most power
requirements as standard. The design is specifically tailored to allow full
flexibility, and modifications to meet customer applications can be implemented
with ease. The LX550 AC input series meet the safety requirements of EN60950,
VDE0805, UL1950 and CSA C22.2 No. 950. Input conducted noise levels meet
the requirements of EN55022 class B. LX550 series power supplies are ideal for
use in high power industrial applications and are particularly suitable for front
end power systems.
SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated
OUTPUT SPECIFICATIONS
Voltage adjustability
Vout on singles
+5V output on multiple
-8%/+16%
±20%
Remote sense
±10%
Line regulation
LL to HL, FL
See Note 5
Single output
Multiple: +5V output
Multiple: aux. outputs,
±0.2%
±0.2%
±0.5%
Load regulation
(20% to 100% FL)
See Note 5
Single output
Multiple: +5V output
Multiple: ±12, +24 outputs
Multiple: -5V output
±0.2%
±1.0%
±2.0%
±4.0%
Cross regulation
See Note 5
5A load step on main output
Auxiliary outputs
1.0%
Transient response
25% di/dt
1.0% max. dev.
1ms recovery
Temperature coefficient Main/single output
±0.02%/°C
Multiple: auxiliary outputs ±0.04%/°C
Overvoltage protection Main/single output 130% ±10% Vout
Output power limit
Multiples:
primary power limited
Singles:
current foldback
600W Pout
105% to
120% Iout
Shot circuit protection All outputs
Yes
Minimum output current
0A
INPUT SPECIFICATIONS
Input voltage range
(See Note 6)
Autorange fitted
as standard
Drop-out voltage
98 to 132VAC
190 to 264VAC
98VAC
Input frequency
50Hz/60Hz
Input surge current
110VAC
230VAC
16A max.
25A max.
Safety ground
leakage current
110VAC, 60Hz
230VAC, 50Hz
1.6mA
2.5mA
PAGE 1
INPUT SPECIFICATIONS CONTINUED
Remote OFF
Logic 0 on ROF
ELECTROMAGNETIC COMPATIBILITY SPECIFICATIONS
Conducted emissions
Input noise immunity
EN55022, EN55011, FCC
Class B
Line to line
Line to ground
2.5kV, 10µs
1.5kV, 150µs
GENERAL SPECIFICATIONS
Hold-up time
110VAC and 230VAC
18ms
Efficiency
82% min.
Isolation voltage
Input/output
Input/chassis
3000VAC
1500VAC
Switching frequency Fixed
44kHz
Approvals and
standards
Safety EN60950, VDE0805, UL1950
CSA C22.2 No. 950
Weight
3.0kg (106oz)
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Note 7)
Operating
Non-operating
0°C to +70°C
–25°C to +85°C
0°C to 40°C ambient,
fan cooled
550W
40°C to 70°C ambient, Derate linearly
fan cooled
to 25% full load
Peak, (0°C to 40°C, 550W, same as
max. 10s)
max. output but
allows individual peaks
Relative humidity
Non-condensing
5% to 95% RH
Altitude
Operating
Non-operating
10,000 feet max.
30,000 feet max.
Vibration
Operating
5–50Hz, 0.05mm pk-pk
50–100Hz, 0.025mm pk-pk
Non-operating
100mm drop on
chassis face
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AC/DC POWER SUPPLIES | 550W AC
550 Watt
AC/DC universal input switch mode power supplies
OUTPUT
VOLTAGE
+5.0V
–5.0V
www.datash–e1e2t4.0uV.com
+12.0V
+24.0V
24.0V (4)
48.0V (4)
OUTPUT CURRENTS
MAX (1)
PEAK (2)
60.0A
100.0A
5.0A
10.0A
5.0A
10.0A
10.0A
20.0A
5.0A
10.0A
24.0A
–
12.0A
–
INPUT CONNECTIONS
Pin 1
Earth
Pin 2
Neutral
Pin 3
Live
OUTPUT CONNECTIONS
MULTI O/P SINGLE O/P
SIGNALS
1 +5VS 0VS
SRS
2 +5V
0V
ACF
3 +5V
0V
DCF
4 +5V
0V
PM
5 0V
0V
PS
6 0V
0V
ROF
7 0V
+V
+VS
8 –5V
+V
0V
9 –12V
+V
–
10 +12V
+V
–
11 +24V +VS
–
12 ROF ROF
–
OUTPUT RIPPLE
RMS
PK-PK
MODEL NUMBER
0.2%
2.0%
LX550-7620
0.2%
2.0%
0.2%
2.0%
0.2%
2.0%
0.2%
2.0%
0.1%
1.0%
LX550-7624
0.1%
1.0%
LX550-7617
Notes:
1 The multiple output LX550 has a continuous output power rating of 550W.
The single-output versions have a continuous power output rating of
570W. The LX550 cannot operate without fan cooling.
2 Peak power figures for individual outputs on the multiple output unit are
for less than 10 seconds duration. Total output power should not exceed
550W.
3 Fan fitted as standard, see maximum output current specifications.
4 Single output models are adjustable -8%, +16%.
5 A 10% load on the main output is necessary to maintain regulation on the
auxiliaries at full load (multiple output model).
6 The input board is fitted with an autorange circuit as standard which
automatically senses the input voltage and switches to the appropriate
voltage range.
7 Over temperature protection is provided by a thermal switch fitted to the
main transformer. After thermal shutdown (90°C) the unit must be
powered down and the thermal switch must be allowed cool to 70°C
before power up.
8 This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
Options
• DC input models for 24V and 48V operation are detailed on page 170.
• A signals board is available as an option. To order, add the suffix ‘-S’, see
table below.
OPTIONS
None
Signals
SUFFIX
-S
EXAMPLE
LX550-7620
LX550-7620-S
OVERLOAD/SHORT CIRCUIT PROTECTION
The overload/short circuit protection mechanisms are different for the single
output models and the multiple output model.
The single output models will current limit when the output load reaches
105-120% of maximum load during overload or short circuit conditions.
The unit will operate in a constant current mode making the single output
models suitable for battery charging applications.
The multiple output model uses a power limiting function. When the total
output power reaches 600W the outputs will foldback to the values detailed
below:
Output
Foldback Value
+5V 30A continuous
+12V
8A continuous
+24V
4A continuous
–5V/–12V Protected by 4A Multi Fuse™
The outputs will not foldback until the total output power exceeds the maxi-
mum power limits. This allows the units to have a peak power capability
but it requires that care must be taken not to permanently overload any
individual output. The +5V, +12V and +24V outputs are not individually pro-
tected and it is recommended that the maximum continuous load does not
exceed the value given in the output specifications. The -5V and -12V out-
puts are individually protected by a 4A Multi Fuse™ and the maximum con-
tinuous load should not exceed the value given in the output specifications.
SIGNALS (OPTIONAL)
An optional signals board supplies the following VME utility bus signals:
ACF (AC Fail) Logic 1 to 0 transition occurs >10ms before outputs fall
below 90% of nominal in the event of input failure.
DCF (DC Fail) Logic 0 occurs if output falls below <85%–95% of nominal.
SRS (System Reset) Logic 1 for system OK (AC and DC good and reset
times [200ms])
PM Power Monitor signal, proportional to the output power, ratio of
10mV/W.
PS Power Share connections, to be joined for parallel operation of two
or more units, ensuring equal power share. For power share
operation unit outputs need to be set to ±5% of each other and
should be connected in star configurations with the load as star
centre.
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