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1

Terminal Block

2

Function

3

5

Series Operation and Parallel Operation

Ground

LDA-19

4

6

Assembling and Installation Method

Others

4.1

4.2

4.3

Instruction Manual

LDA-21

LDA-23

LDA-24

LDA-26

LDA-26

LDA-20

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

Input voltage range

Installation method

Inrush current limiting

Derating

Mounting screw

Overcurrent protection

Overvoltage protection

Output voltage adjustment range

Isolation

Remote ON/OFF

Remote sensing

LDA-21
LDA-21
LDA-21
LDA-21
LDA-22
LDA-22
LDA-22
LDA-22

LDA-24
LDA-24
LDA-25

LDA

AC-DC Power Supplies Open Frame/Enclosed type

June 29, 2011

Summary of Contents for LDA100W

Page 1: ...d converter 7 5 3 6 2 4 140 140 140 60 500 45 400 frequency Switching Circuit method Forward converter Forward converter Forward converter Flyback converter Flyback converter A 1 8 1 3 0 8 0 37 0 25 c...

Page 2: ...LDA 26 LDA 20 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 Input voltage range Installation method Inrush current limiting Derating Mounting screw Overcurrent protection Overvoltage protection Output voltage adjus...

Page 3: ...L AC N Frame ground AC L AC N Frame ground AC L AC N Frame ground AC L AC N Frame ground AC N AC L Frame ground t t Output t t t t t t t Output t t Output Output t t t t t t t t Output Output t t AC...

Page 4: ...15 15 15 15 15 30 30 30 AC200V 30 30 30 30 30 30 30 30 LDA LDA LDA LDA LDA LDA LDA LDA 10F 15F 30F 50F 75F 100W 150W 300W Fig 2 1 Current foldback characteristics Note In case of nonlinear load the o...

Page 5: ...12 5V current limit resistance R is not re quired However when external power source exceeds 12V LDA300W 12 5V current limit resistance R must be con nected To calculate the current limit resistance...

Page 6: ...lowest rated current in each unit When the output voltage is less than 5V 3 Series Operation and Parallel Operation When the output voltage is more than 12V D1 D4 Please use schottky Barrier Diode n...

Page 7: ...sis keep the distance between l l for to insulate between lead of component and metal chassis If it is less than l l insert the insulation sheet between power supply and metal chassis 1 2 1 2 4 2 Dera...

Page 8: ...nted parts at front side where major components are mounted when a power supply is installed with them 4 3 Mounting screw lLDA10F nWhen unit mounted except below drawings it is required to con sider v...

Page 9: ...g the safety agency connect the input FG terminal to safety ground of the unit n n n This power supply is the rugged PCB type Do not drop conduc tive objects in the power supply At light load there re...

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