background image

l

LDA100W

l

LDA150W

l

LDA300W

l

LDA300W

Mounting method

LDA-25

Note:

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

ferent from other area.

Note:

Ventilation is required so that part A of heat sink is below 85

in

any case. Please flow air to the components to the direction of Air

or Air .

n

n

n

(F) mounting is not possible when unit is with case cover, but if

need to operate unit by (F) positioning with case cover, tempera-

ture / load derating is necessary. For more details, please consult

our sales or engineering departments.

The mounting screw should be M3. The hatched area shows the

allowance of metal parts for mounting.

Please be carefull with that metal parts do not touch mounted

parts at front side, where major components are mounted, when

a power supply is installed with them.

4.3 Mounting screw

l

LDA10F

n

When unit mounted except below drawings, it is required to con-

sider ventilated environment by forced air cooling for tempera-

ture/load derating. For details, please consult our sales or engi-

neering departments.

0

20

40

80

60

100

0

-10

10

20

30

40

50

60

70

(B), (C), (D), (E), (F) mounting

Ambient temperature [ ]

Load

factor

[%]

Convection
Forced air

(A) mounting

The rated power is different depend on Forced Air/Convection
cooling (Please refer Chart in right hand side).

Convection

Forced air

120W

200W

207W

204W

210W

216W

216W

210W

201.6W

-3

-5

-9

-12

-15

-18

-24

-30

-48

180W

300W

306W

324W

330W

306W

336W

300W

302.4W

Output

voltage

TB1

TB2

Air

Air

Part A

CN1

CN1

CN1

CN1

(A)

(B)

(C)

(D)

CN1

CN1

(E)

(F)

Normal position

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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