EMERSON LPS350 Service Manual

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Special Features

Electrical Specs

350 Watts

LPS350 Series

Input

Input range 85-264 VAC; 120-300 VDC
Frequency 47-440 Hz
Inrush current 38 A max., cold start @ 25°C
Efficiency 75% typical at full load
EMI filter FCC Class B conducted and radiated

CISPR 22 Class B conducted and radiated
EN55022 Class B conducted and
radiated
VDE 0878 PT3 Class B conducted and

radiated.
Power factor 0.99 typical
Safety ground leakage
current <0.5 mA @ 50/60 Hz, 264 VAC input

Output

Maximum power With cover: 350 W with 30 CFM forced

air,

(-C) (-CF) (-CEF)
Adjustment range 2:1 wide ratio
Supervisory outputs 5 V @ 500 mA regulated, 12 V @ 150
mA x2
Hold-up time 20 ms @ 350 W load, 115 VAC nominal

line

at factory voltage setting
Overload protection Short circuit protection on all outputs.

Case overload protected @ 110-145%

above peak rating
Overvoltage protection 5 V output: 5.7-6.7 VDC. Other models

10% to 25% above nominal output

Logic Control

Power failure TTL logic signal goes high 50-150 msec

after 5 V output. It goes low at least 4

msec before loss of regulation
Remote on/off Requires an external contact (N.O or

N.C) to inhibit outputs
DC-OK TTL logic goes high 50-150 msec after

the output. It goes low when there is

loss of regulation.
Remote sense Compensates for 0.5 V lead drop min.

Will operate without remote sense

connected. Reverse connection protected.

• Active power factor correction

• IEC EN6100-3-2 compliance

• Remote sense

• Power fail and remote inhibit

• Single wire current sharing

• Built-in EMI filter

• Low output ripple

• Supervisory output 5 V and 12 V

• Overvoltage protection

•Overload protection

• Thermal overload protection

• DC power good

•Cover -C

• 130 KHz switching frequency

• Optional with fan cover -CF

• Optional end-mounted fan - CEF

Operating temperature: 0° to 50°C ambient
derate each output at 2.5% per degree from 50° to
70°C

Electromagnetic susceptibility: Designed to meet
IEC 801, -2, -3, -4, -5, -6, Level 3

Humidity: Operating; non-condensing
5% to 95%

Vibration: Three orthogonal axes, sweep at
1 oct/min, 5 min. dwell at four major resonances

0.7 G peak 5 Hz to 500 Hz, operational

Storage temperature: -40° to 85°C

Temperature coefficient: ±.04% per °C

MTBF demonstrated: >550,000 hours at full load
and 25°C ambient conditions

VDE 0805/EN60950 (IEC950) 21310-3336-0001
ULUL1950 E186249
CSA CSA 22.2-234 Level 5 LR109492C
NEMKO EN 60950/EMKO-TUE P98102115

(74-sec) 203

BABT EN60950/BS7002 608857, 608858, 609097
CB Certificate and report 5734, 6280, 6281
CE Mark (LVD)

Environmental

Total Power: 350 Watts
Input Voltage: 85-264 VAC

120-300 VDC

# of Outputs: Single

Safety

rev 07.11.05

EUROPE

Astec House, Waterfront Business Park

Merry Hill, Dudley

West Midlands, DY5 1LX, UK

Telephone: [phone]

Facsimile: 44 (1384) 843-355

AMERICAS

5810 Van Allen Way
Carlsbad, CA 92008

Telephone: [phone]

Facsimile: 760-930-0698

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www.astecpower.com