EMERSON LPQ350 Service Manual
Technical Support: (888) 41-ASTEC or (407) 241-2752
Americas: (760) 930-4600 Europe (UK) 44 (1384) 842-211 Asia (HK) 852-2437-9662
128
Special Features
Electrical Specs
350 Watts
LPQ350 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 ± 5% min. on main: 3.3-24 V on output
4
Supervisory output 5 V @ 500 mA regulated, 12 @ 150 mA
x2
Hold-up time 20 ms @ 350 W load, 115 VAC nominal
line
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.
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
5 V 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 EN61000-3-2 compliance
• Remote sense on 1st and 4th output
• Power fail and remote inhibit
• Single wire current sharing
• Built-in EMI filter
• Adjustable floating 4th output
• 2 Supervisory output 5 V and 12 V
• Overvoltage protection
• Overload protection
• Thermal overload protection
• DC power good
• 135 khz switching frequency
•Cover -C
• 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
UL UL1950 E186249
CSA CSA 22.2-234 Level 5 LR109492C
NEMKO EN 60950/EMKO-TUE P97102061 (74-sec) 203
CB Certificate and report 4048, 4049
CE Mark (LVD)
Environmental
Total Power: 350 Watts
Input Voltage: 85-264 VAC
120-300 VDC
# of Outputs: Quad
Safety
rev 12.10.03
ASIA
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
129
www.astecpower.com
Ordering Information
5.0 (127.0)
2.5
(63.5)
1.18 (30.0)
3.5
(88.9)
Optional
(-CEF)
Cover
with fan
9.0
(228.6)
6.64
(168.6)
3.42 (87.0)
.79
(20)
SK1
3 2 1
SK5 5V aux
+ve -ve
Terminal
Block TB1
SK4 fan
#6-32 UNC (8 places)
5.46
(138.6)
8.52
(216.4)
M3 (4 places)
3.68
(93.6)
3.15
(80)
2.17
(55)
.55
(14)
1.30
(33.0)
Optional
(-CF)
Cover
with Fan
10.78
(273.8)
J1
.24 (6.1)
6-32 (2 places)
Main Output
SK3
12345 678910
SK6
SK2
6 5 4 3 2 1
6-32 (3 places)
M3
(6 places)
Top pot.
=V4 adjust
Bottom pot.
=V1 adjust
Model Output Minimum Maximum Load with Peak Regulation2Ripple
Number Voltage Load 30 CFM Forced Air Load
1
P/P (PARD)
3
LPQ352-C +5 V 5 A 50 A 60 A ±2% 50 mV
+12 V 0 A 12 A 14 A ±3% 120 mV
-12 V 0 A 6 A 8 A ±3% 120 mV
3.3-24 V *1 A 6 A 8 A ±3% 240 mV, max.
LPQ353-C +5 V 5 A 50 A 60 A ±2% 50 mV
+15 V 0 A 12 A 14 A ±3% 150 mV
-15 V 0 A 6 A 8 A ±3% 150 mV
3.3-24 V *1 A 6 A 8 A ±3% 240 mV, max.
1. Peak current lasting <30 seconds with a maximum 10% duty cycle.
2. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
3. Peak-to-peak with 20 MHz bandwidth and 10 µF in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.
4. 4th output 3.3-24 V factory set at 5 V.
5. * Minimum load required when the output is set below 5 volts.
6. If optional CF or CEF fans are not used, 30CFM forced air cooling needs to be provided and is required through the
length of the power supply. Not convection rated.
7. Remote inhibit resets OVP latch
Note: -CF suffix added to the model number indicates cover with fan,
-CEF suffix added to model number indicates end-mounted fan chassis.
SK1 PIN 1 Neutral
PIN 2 Line
PIN 3 Ground
SK2 PIN 1 +12 / 15 V
PIN 2 Common
PIN 3 Common
PIN 4 -12 / 15 V
PIN 5 3.3-25 V RET Float
PIN 6 3.3-25 V Float
SK3 PIN 1 + Sense V 4
PIN 2 - Sense V 4
PIN 3 +Sense V 1
PIN 4 -Sense V 1
PIN 5 POK
PIN 6 C.Share
PIN 7 DC-OK
PIN 8 Inhibit (N.O.)
PIN 9 Inhibit (N.C.)
PIN 10 COM
SK4 PIN 1 + Fan 1 (12V@150mA)
PIN 2 – Common
SK5 PIN 1 + 5V aux (5V@100mA)
PIN 2 – Common
SK6 PIN 1 + Fan 2 (12V@150mA)
PIN 2 – Common
Mating Connectors
SK3 Molex: 22-01-1084
PINS: 08-70-0057
SK4 Molex 22-01-3027
PINS: 08-50-0114
SK5 Molex 22-01-3027
PINS: 08-50-0114
SK6 Molex 22-01-3027
PINS: 08-50-0114
Astec Connector Kit #70-841-011, includes all of the above.
Pin Assignments
LPQ350 Series
Notes:
1. Specifications subject to change without notice.
2. All dimensions in inches (mm), tolerance ±.02”.
3. Specifications are at factory settings
4. To enable normally closed Remote Inhibit,
cut Jumper J1.
5. Mounting maximum insertion depth is 0.12”.
6. Warranty: 1 year
7. Weight: 4 lb. / 1.8kg.
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