background image

¡

Derating curve depending on input voltage

Derating curve depending on input voltage is shown in Fig.3.14.

¿ 

LGA100A-

O

-SN (with Chassis & Cover)

¿ 

LGA150A

¿ 

LGA150A-

O

-SN (with Chassis & Cover)

¿ 

LGA240A

¿ 

LGA240A-

O

-SN (with Chassis & Cover)

¡

Mounting method

*

(F) mounting should be operated by Forced air.

¡

The guideline for air cooling

It shows the upper temperatures of Point A and B on Table 3.1 to 

Table 3.6.

Please take care to keep those temperatures below the points of 

the tables by air convection.

And please be attentive to keep that the entire power supply is 

well ventilated.

At the upper temperatures of Point A and Point B (refer to External 

View) on Table 3.1 to Table 3.6, the expectancy life is 3 years or more. 

In case of with Chassis and Cover, please contact our sales offi ce 

for getting more information.

Remarks:

*

Please be careful of electric shock or earth leakage in case of 

temperature measurement, because Point A and Point B is live 

potential.

*

Please refer to 3.4 if you want to extend the longevity of the ex-

pectancy life.

-10

60

50

40

30

2

2

Forced air (0.5m

3

/ min)

1

Convection

80

100

60

40

20

0

10

20

0

Load

factor

[%

]

[

C

]

Ambient temperature 

(A) ~ (F)
mounting

1

1

(A)mounting

1

(B), (C)mounting

(D)mounting

1

(E)mounting

AC-DC Power Supplies Open Frame/ Enclosed Type

Instruction Manual

LGA-16

LGA

*

 [F] mounting should be operated by Forced air.

Fig.3.14 Derating curve depending on input voltage

Fig.3.9 Ambient temperature derating curve

*

 [F] mounting should be operated by Forced air.

Fig.3.10 Ambient temperature derating curve

*

 [F] mounting should be operated by Forced air.

Fig.3.11 Ambient temperature derating curve

*

 [F] mounting should be operated by Forced air.

Fig.3.12 Ambient temperature derating curve

*

 [F] mounting should be operated by Forced air.

Fig.3.13 Ambient temperature derating curve

-10

60

50

40

30

1

2

2

Forced air (0.5m

3

/ min)

1

Convection

80

100

60

40

20

0

10

20

0

Load

factor

[%]

[

C

]

Ambient temperature 

(D), (E)mounting

(A) ~ (F)
mounting

1

1

(A)mounting

(B), (C)mounting

[AC V]

[%]

100

80

85 90

Load factor

Fig.3.15 Mounting method 

-10

70

60

50

40

30

2

2

1

Convection

80

100

60

40

20

0

20

10

0

Load

factor

[%

]

[

C

]

Ambient temperature 

(A) ~ (F)
mounting

Forced air (0.5m

3

 / min)

1

1

(B)mounting

(E)mounting

1

1

(A)mounting

(C), (D)mounting

(D)

(E)

(F)

CN1

CN1

CN1

Standard 
Position

CN1

(A)

(B)

(C)

CN1

CN1

-10

60

50

40

30

2

2

Forced air (0.5m

3

/ min)

1

Convection

80

100

60

40

20

0

10

20

0

Load

factor

[%

]

[

C

]

Ambient temperature 

(A) ~ (F)
mounting

1

1

(A)mounting

1

(B), (C)mounting

(D)mounting

1

(E)mounting

-10

60

50

40

30

1

2

2

Forced air (0.5m

3

/ min)

1

Convection

80

10

95

0

60

40

20

0

10

20

0

Load

factor

[%]

[

C

]

Ambient temperature 

(D), (E)mounting

(A) ~ (F)
mounting

1

1

(A)mounting

(B), (C)mounting

me̲lga1.indd   LGA-16

me lga1 indd LGA-16

2015/06/19   14:42:26

2015/06/19 14:42:26

Summary of Contents for LGA100A

Page 1: ...ethod Forward Converter Forward Converter Forward Converter 1 A 3 6 2 4 1 7 1 3 current Input 130 operation availability 2 Series Parallel Parallel operation SCR CEM 3 Yes Yes PCB Pattern SCR SCR Ther...

Page 2: ...Series Operation and Parallel Operation LGA 14 1 1 Input voltage range 1 2 Inrush current limiting 1 3 Overcurrent protection 1 4 Overvoltage protection 1 5 Output voltage adjustment range 1 6 Isolat...

Page 3: ...input should be shut down if overvoltage protection is in operation The mini mum interval of AC recycling for recovery is 1 5 minutes LGA240A is 3minutes The recovery time varies depending on input v...

Page 4: ...ing E mounting A F mounting 1 1 A mounting B C mounting 10 70 60 50 40 30 2 2 1Convection 80 100 60 40 20 0 20 10 0 Load factor C Ambient temperature A F mounting Forced air 0 5m3 min 1 1 D mounting E...

Page 5: ...ounting AC DC Power Supplies Open Frame Enclosed Type Instruction Manual LGA 16 LGA F mounting should be operated by Forced air Fig 3 14 Derating curve depending on input voltage Fig 3 9 Ambient tempe...

Page 6: ...66 77 Io 40 75 81 A B C D E F Forced air 70 Io 100 85 80 Io 70 80 75 Table 3 4 Temperatures of Point A Point B LGA100A O Mounting Method Cooling Method Load factor Max temperature Point A C Point B C...

Page 7: ...50C 5years 3years Warranty Table 3 13 Warranty LGA50A 3R3 Y 5 12 15 Mounting Method Cooling Method Average ambient temperature year Load factor Io 75 75 Io 100 A Convection Ta 40C or less 5years 5yea...

Page 8: ...able 3 18 Warranty LGA240A O Mounting Method Cooling Method Average ambient temperature year Load factor Io 75 75 Io 100 A Convection Ta 30C or less 5years 5years Ta 40C 5years 3years B C Convection T...

Page 9: ...se the output voltage turn a built in potentiometer clockwise To decrease the output voltage turn it counterclockwise Please take care when you adjust output voltage by potentiometer because there is...

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