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l

LDA15F

l

LDA30F

l

LDA50F

l

LDA75F

LDA-24

4 Assembling and

Installation Method

4.1 Installation method

n

n

When two or more power supplies are used side by side, position

them with proper intervals to allow enough air ventilation. Ambient

temperature around each power supply should not exceed the

temperature range shown in derating curve.

In case of metal chassis, 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 Derating

n

The operative ambient temperature is different by with/without

case cover or mounting position. Please refer drawings as below.

l

LDA10F

=

2

4mm min

2

2

2

CN1

2

=

1

8mm min

CN1

2

Note:

In the hatched area, the specification of Ripple, Ripple Noise is dif-

ferent from other area.

LDA

Instruction Manual

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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