EMERSON LPS50-M Service Manual
Rev. 02.05.07
LPS50-M Series
1of 3
Embedded Power for
Business-Critical Continuity
LPS50-M Series
60 Watts
Special Features
• Medical Safety Approvals
• Universal input
• Less than 1U high
• 2" x 4" footprint
• Remote sense
• Overload and short circuit
protection
• Adjustable Output Voltage
• High efficiency
• High MTBF
• Built in EMI filter
(CISPR 22 Class B)
• LED power good indicator
• Input power <74 watts
• Complies with EN61000-3-2
• UL Class I approved
• UL Class II available,
consult factory
Total Power: 55 - 60 Watts
Input Voltage: 90 - 264 VAC
127 - 300VDC
# of Outputs: Single
Electrical Specifications
Safety
Input
Input range
90 - 264 VAC (wide range)
127 - 300VDC
Frequency 47-440 Hz
Inrush current <60A peak @ 230VAC, cold start @ 25°C
Input power <74 Watts
Efficiency 80% - 85% typical at full load
EMI/RFI
FCC Class B conducted; CISPR22 Class B conducted; EN55022
Class B conducted; VDE0878PT3 Class B conducted.
Safety ground leakage
current
275 uA @ 50/60 Hz, 264 VAC input
Output
Maximum power 60W for convection (LPS52, 55W)
Adjustment range ±20% minimum
Hold-up time
10/20 ms 115/230 VAC Input line
Overload protection
Short circuit protection on all outputs. Case overload protect-
ed @ 110-160% of normal rating
Overvoltage protection
30-50% above nominal output
Remote sense Compensates for 0.5 V lead drop max. Will operate without
remote sense connected. Reverse connection protected.
UL UL 60601-1
CSA CSA-C22.2 No. 601.1-M90
VDE EN60601-1
CE LVD & EMC
RoHS
Embedded Power for
Business-Critical Continuity
Rev. 02.05.07
LPS50-M Series
2of 3
Mechanical Drawing
1.30"
[33.0]
1.72"
[43.8]
3.73"
[94.7]
4.00"
[101.6]
0.16"
[4.0]
2.00"
[50.8]
R22
SK1
TH
1
C1
F2
L1
F1
C
2
C
N
1
C3
C5
L3
DB1
C32
C24
C30
C
1
7
C9
C18
Q6
T1
D4
R1
LED1
D2
T2
R
2
6
C22
SK2
C27
R
3A
R3
Q5
L2
VR1
DIP
T3.15A 2.5A
250VAC
2005
250VAC
T3.15A
+
GRN/
YEL
~~
B
A
HTSK_SEC
C4
2.5A
1
TP1
J
I
J3
F
H
J2
E
G
J1
D
TP2
J4
Mounting Hole
Ø0.16"[4.0] 4 Places
GND
3
1
M1
04272000202X-JA
6
1
VR1
Output Voltage
Adjust Pot
M2
Operating temperature:
0° to 50°C ambient derate each output as 2.5% per degree
from 50° to 70°C. -20°C start up
Storage temperature: -40°C to +85°C
Electromagnetic
susceptibility:
designed to meetEN61000-4;
-2, -3, -4, -5, -6, -8, -11 Level 3
Humidity: Operating; non-condensing 10% to 95% RH
Vibration: IEC68-2-6 to the levels of IEC721-3-2
MTBF demonstrated >550,000 hours at full load and 25°C ambient conditions
Environmental Specifications
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