EMERSON LPS121, LPS122, LPS123, LPS124, LPS125 Service Manual

Embedded Power for Business-Critical Continuity

LPS120 Series

120 Watts

Total Power:	80	- 130 Watts
Input Voltage:	85	- 264 VAC
# of Outputs:	Single

Special Features

•Active power factor correction

•3" x 5" footprint

•Less than 1U high

•EN61000-3-2 compliant

•Remote sense

•Power fail and remote inhibit

•Single wire current sharing

•Adjustable main output

•Built-in Class B EMI filter

•Overvoltage protection

•Overload protection

•Thermal overload protection

•5 V Standby output and 12V Fan output

Safety

TUV: 60950

UL: 60950

CSA 60950

NEMKO: 60950

AUSTEL: 60950

CB: Certificate and report CE: Mark (LVD)

Rev. 03.24.08

LPS120 Series

1 of 3

RoHS

Electrical Specifications

Input

Input range: Frequency: Inrush current: Efficiency: EMI/RFI:

Power factor: Safety ground leakage current:

Output

85 - 264 VAC ; 127 - 300VDC

47-440 Hz

40A max., cold start @ 25°C

80% typical at full load

FCC Class B conducted; CISPR22 Class B conducted; EN55022 Class B conducted; VDE0878PT3 Class B conducted

0.99 typical

0.5mA @ 50/60 Hz, 264 VAC input

Maximum power: Adjustment range: Fan output:

Standby outputs: Hold-up time: Overload protection:

Overvoltage protection:

Remote sense:

Logical Control

Power failure:

Remote inhibit:

Remote sense:

80W for convection ; 130W with 30CFM forced air ±5% minimum on the main outputs

12V @ 500mA - 5%, +7%

5V @ 500mA ±5%

20ms @ 125W load, 120VAC input

Short circuit protection on all outputs. Case overload protected @ 120-135% above rating

20-35% above nominal output

Compensates for 0.5 V lead drop max. Will operate without remote sense connected. Reverse connection protected.

TTL logic signal goes high 100-500 msec after main output; it goes low at least 4 msec before loss of regulation

Requires a contact closure to disable the outputs, except 5V standby.

Compensates for 0.5 V lead drop min. Will operate without remote sense connected. Reverse connection protected.