Cosel LFA10F User manual

LFA-20
Basic Characteristics Data
*1The value of input current is at ACIN 100V and rated load.
*2Refer to Instruction Manual 2.
Basic Characteristics Data
Model Circuit method
Switching
frequency
[kHz]
Input
current
*1
[A]
Inrush
current
protection
PCB/Pattern
Series/Parallel
operation availability
*2
Material
Single
sided Double sided Series operation Parallel operation
LFA10F Flyback converter 100 0.26 LF CEM-3 Yes Yes No
LFA15F Flyback converter 100 0.35 Thermistor CEM-3 Yes Yes No
LFA30F Flyback converter 130 0.65 Thermistor CEM-3 Yes Yes No
LFA50F Active filter 60-440 0.67 Thermistor CEM-3 Yes Yes No
Flyback converter 130
LFA75F Active filter 60-440 1.0 Thermistor CEM-3 Yes Yes No
Flyback converter 130
LFA100F Active filter 60 1.3 Thermistor CEM-3 Yes Yes No
Forward converter 140
LFA150F Active filter 60 2.0 Thermistor CEM-3 Yes Yes No
Forward converter 140
LFA240F Active filter 60 3.3 SCR CEM-3 Yes Yes No
Forward converter 140
LFA300F Active filter 60 4.1 SCR CEM-3 Yes Yes No
Forward converter 140
LFA
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3 Assembling and Installation Method LFA-24
3.1 Installation method
3.2 Derating
3.3 Mounting screw
3.4 Expectancy life and warranty
4 Ground LFA-30
LFA-24
LFA-24
LFA-28
LFA-28
1 Function LFA-22
2Series Operation and Parallel Operation LFA-23
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 Output ripple and ripple noise
1.7 Isolation
1.8 Reducing standby power
LFA-22
LFA-22
LFA-22
LFA-22
LFA-22
LFA-23
LFA-23
LFA-23
5.1 Outline of options
5.2 Others
LFA-30
LFA-32
5 Option and Others LFA-30
2.1 Series Operation
2.2 Parallel Operation
LFA-23
LFA-24
AC-DC Power Supplies Open Frame/ Enclosed Type
LFA-21
Instruction Manual
LFA
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1.1 Input voltage range
¡The range is from AC85V to AC264V or DC120V to DC370V
(please see SPECIFICATIONS for details).
¡In cases that conform with safety standard, input voltage range is
AC100-AC240V (50/60Hz).
¡If input value doesn’t fall within above range, a unit may not oper-
ate in accordance with specifications and/or start hunting or fail.
If you need to apply a square waveform input voltage, which is
commonly used in UPS and inverters, please contact us.
¡When the input voltage changes suddenly, the output voltage ac-
curacy might exceed the specification. Please contact us.
¿ LFA10F, LFA15F, LFA30F
¡A power factor improvement circuit (active filter) is not built-in. If
you use multiple units for a single system, standards for input har-
monic current may not be satisfied. Please contact us for details.
¿ LFA10F, LFA15F, LFA30F, LFA50F, LFA75F,
LFA100F, LFA150F, LFA240F, LFA300F
¡Operation stop voltage is set at a lower value than that of a stan-
dard version (derating is needed).
-Use Conditions Output ( ) 3.3V
LFA10F 5W (3W)
LFA15F 7.5W (5W)
LFA30F 10W (7.5W)
LFA50F 15W (10W)
LFA75F 25W (15W)
LFA100F 30W (20W)
LFA150F 50W (30W)
LFA240F 80W
LFA300F 100W (75W)
Input AC50V or DC70V
Duty 1s/30s
*Please avoid using continuously for more than 1 second
under above conditions. Doing so may cause a failure.
1.2 Inrush current limiting
¡An inrush current limiting circuit is built-in.
¡If you need to use a switch on the input side, please select one
that can withstand an input inrush current.
¿ LFA10F
¡Resistance for line filter is used for inrush current limiting.
¿LFA15F, LFA30F, LFA50F, LFA75F, LFA100F,
LFA150F
¡Thermistor is used in the inrush current limiting circuit. When you
turn the power ON/OFF repeatedly within a short period of time,
please have enough intervals so that a power supply cools down
before being turned on.
1 Function ¿LFA240F, LFA300F
¡Thyristor technique is used in the inrush current limiting circuit.
When you turn power ON/OFF repeatedly within a short period of
time, please have enough intervals so that the inrush current limit-
ing circuit becomes operative.
¡When the switch of the input is turned on, the primary inrush cur-
rent and secondary inrush current will be generated because the
thyristor technique is used for the inrush current limiting circuit.
1.3 Overcurrent protection
¡An overcurrent protection circuit is built-in and activated at 105%
of the rated current or 101% of the peak current. A unit automati-
cally recovers when a fault condition is removed.
Please do not use a unit in short circuit and/or under an overcur-
rent condition.
¡Intermittent Operation Mode
Intermittent operation for overcurrent protection is included in a
part of series. When the overcurrent protection circuit is activated
and the output voltage drops to a certain extent, the output be-
comes intermittent so that the average current will also decrease.
1.4 Overvoltage protection
¡An overvoltage protection circuit is built-in. If the overvoltage pro-
tection circuit is activated, shut down the input voltage, wait more
than 3 minutes and turn on the AC input again to recover the out-
put voltage. Recovery time varies depending on such factors as
input voltage value at the time of the operation.
¡In option -R2, overvoltage protection is removed by toggling ON/
OFF signal of remote control.
Remarks :
Please avoid applying a voltage exceeding the rated voltage to an
output terminal. Doing so may cause a power supply to malfunc-
tion or fail. If you cannot avoid doing so, for example, if you need
to operate a motor, etc., please install an external diode on the
output terminal to protect the unit.
1.5 Output voltage adjustment range
¡Adjustment of output voltage is possible by using potentiometer.
Please refer to instruction manual 5.1.
¡Option ”-Y” is recommended which can adjust the output voltage.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-22
LFA
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2.1 Series Operation
¿ LFA10F, LFA15F, LFA30F, LFA50F, LFA75F
¡Series operation is available by connecting the outputs of two or
more power supplies with the same output voltage, as shown be-
low. Output current in series connection should be lower than the
lowest rated current in each unit.
2 Series Operation and
Parallel Operation
¿ LFA100F, LFA150F, LFA240F, LFA300F
¡You can use a power supply in series operation. The output cur-
rent in series operation should be lower than the rated current of a
power supply with the lowest rated surrent among power supplies
that are serially connected. Please make sure that no surrent ex-
ceeding the rated current flows into a power supply.
1.6 Output ripple and ripple noise
¡Output ripple noise may be influenced by measurement environ-
ment, measuring method fig.1.1 is recommended.
1.7 Isolation
¡For a receiving inspection, such as Hi-Pot test, gradually increase
(decrease) the voltage for the start (shut down). Avoid using Hi-
Pot tester with the timer because it may generate voltage a few
times higher than the applied voltage, at ON/OFF of a timer.
1.8 Reducing standby power
¿ LFA10F, LFA15F
¡A circuit reducing standby power is built in LFA10F and LFA15F.
(standby power : 0.5W typ)
The load factor: Io=0-35%, the internal switch element is intermit-
tent operated, and the switching loss is decreased.
The specification of the Ripple/Ripple Noise changes by this
intermittent operation. The value of the ripple/ripple Noise when
intermittent operates changes in the input voltage and the output
current.
Please contact us for details.
Remarks :
When GND cable of probe with flux of magnetic force from power
supply are crossing, ripple and ripple noise might not measure
correctly.
Please note the measuring environment.
¿ LFA100F, LFA150F, LFA240F, LFA300F
¡As for option -R2, reducing standby power is possible by OFF sig-
nal of the remote control.
Please refer to instruction manual 5.1.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-23
LFA
Fig.2.2 Examples of connecting in series operation (b)
D2
D4
D1
D3
Load
Power
Supply
+
-
+
-
Power
Supply
D1
D2
Load
Power
Supply
+
-
+
-
Power
Supply
12V or less 15V or more
D1-D4 : Use a schottky barrier
diode with low forward
voltage.
D1,D2 : Use a schottky barrier
diode with low forward
voltage.
Load Load
Power
Supply
+
-
Power
Supply
+
-
+Vout
-Vout
Load
150mm
C
2 C 1
Osiloscope/
Ripple noise meter
Bw:20MHz
Differential probe
+
Fig.1.1 Measuring method of Ripple and Ripple Noise
C1 : Film capacitor 0.1μF
C2 : Aluminum electrolytic capacitor 22μF
Fig.2.3 Examples of connecting in series operation
Fig.2.1 Examples of connecting in series operation (a)
*
Only LFA300F -3R3 and -5.
Use a schottky barrier diode
with low forward voltage.
(a) (b)
Load
Power
Supply
+
-
+
-
Power
Supply
LoadLoad
Power
Supply
+
-
+
-
Power
Supply
*
*
Fig.1.2. Example of measuring output ripple and ripple noise
Bad example Good example
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3.2 Derating
¡Environment to use it and Installation environment
When using it,it is necessary to radiate heat by the heat of the pow-
er supply.
Table 3.1 - 3.9 shows the relation between the upper limit tempera-
ture (Point A and Point B) and load factors.
Please consider the ventilation so that the convection which is
enough for the whole power supply is provided.
And temperature of Point A and Point B please become lower than
upper limit temperature.
The expectancy life in the upper bound temperature (Point A and
Point B) is three years or more.
Please refer to External View for the position of PointAand Point B.
In case of with Chassis and Cover, please contact our sales office
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.
Table 3.1 Temperatures of Point A, Point B LFA10F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
20%<Io[100% 70 84
Io[20% 75 79
B
Convection
20%<Io[100% 70 81
Io[20% 73 77
C
Convection
20%<Io[100% 76 80
Io[20% 76 77
D
Convection
20%<Io[100% 70 78
Io[20% 75 77
E
Convection
20%<Io[100% 73 84
Io[20% 76 79
F
Convection
20%<Io[100% 74 80
Io[20% 76 78
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
2.2 Parallel Operation
¡Parallel operation is not possible.
¡Redundancy operation is available by wiring as shown below.
¡Even a slight difference in output voltage can affect the balance
between the values of I1and I2.
Please make sure that the value of I3does not exceed the rated
current of a power supply.
I3[the rated current value
3.1 Installation method
¡This power supply is manufactured by SMD technology.
The stress to P.C.B like twisting or bending causes the defect of
the unit,so handle the unit with care.
¡In case of metal chassis, keep the distance between d1& d2for to
insulate between lead of component and metal chassis, use the
spacer of 8mm or more between d1. If it is less than d1& d2, insert
the insulation sheet between power supply and metal chassis.
3 Assembling and
Installation Method
¡There is a possibility that it is not possible to cool enough when
the power supply is used by the sealing up space as showing in
Figure 3.2.
Please use it after confirming the temperature of point A and point
B of Instruction Manual 3.2.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-24
LFA
I2
I1I3
-
+
+
-
Load
Power
Supply
Power
Supply
Fig.2.4 Example of redundancy operation
Fig.3.1 Installation method
=8mm min
=4mm min
CN1
CN1 d2
d1
d2
d2
d2
d2
d2
Power supply
Case
Fig.3.2 Installation example
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Table 3.2 Temperatures of Point A, Point B LFA15F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
40%<Io[100% 72 80
Io[40% 77 81
B
Convection
40%<Io[100% 68 73
Io[40% 74 78
C
Convection
40%<Io[100% 75 84
Io[40% 78 81
D
Convection
40%<Io[100% 71 77
Io[40% 76 79
E
Convection
40%<Io[100% 70 79
Io[40% 76 81
F
Convection
40%<Io[100% 71 78
Io[40% 76 80
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
Table 3.3 Temperatures of Point A, Point B
LFA30F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
70%<Io[100% 73 73
Io[70% 79 77
B
Convection
60%<Io[100% 73 74
Io[60% 80 82
C
Convection
70%<Io[100% 80 77
Io[70% 83 80
D
Convection
70%<Io[100% 72 70
20%<Io[70% 80 77
Io[20% 79 80
E
Convection
70%<Io[100% 73 79
20%<Io[70% 79 85
Io[20% 77 81
F
Convection
70%<Io[100% 73 75
Io[70% 79 79
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
Table 3.4 Temperatures of Point A, Point B
LFA50F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
70%<Io[100% 86 68
Io[70% 86 77
B
Convection
70%<Io[100% 72 65
Io[70% 77 70
C
Convection
50%<Io[100% 78 71
Io[50% 84 77
D
Convection
50%<Io[100% 83 68
Io[50% 85 72
E
Convection
50%<Io[100% 76 75
Io[50% 83 81
F
Convection
50%<Io[100% 80 78
Io[50% 84 76
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
Table 3.5 Temperatures of Point A, Point B
LFA75F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
70%<Io[100% 85 70
Io[70% 86 76
B
Convection
70%<Io[100% 77 65
Io[70% 81 71
C
Convection
70%<Io[100% 81 68
Io[70% 83 72
D
Convection
70%<Io[100% 78 58
10%<Io[70% 80 63
Io[10% 84 72
E
Convection
70%<Io[100% 73 66
10%<Io[70% 83 68
Io[10% 83 79
F
Convection
70%<Io[100% 74 59
Io[70% 83 71
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
Table 3.6 Temperatures of Point A, Point B
LFA100F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
70%<Io[100% 85 74
50%<Io[70% 88 79
Io[50% 88 83
B
Convection
70%<Io[100% 77 72
50%<Io[70% 87 82
Io[50% 88 86
C
Convection
70%<Io[100% 87 82
Io[70% 88 85
D
Convection
70%<Io[100% 80 70
Io[70% 85 80
E
Convection
70%<Io[100% 74 85
Io[70% 80 88
F
Convection
70%<Io[100% 79 71
50%<Io[70% 88 77
Io[50% 88 79
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
Table 3.7 Temperatures of Point A, Point B
LFA150F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
60%<Io[100% 79 75
20%<Io[60% 86 85
Io[20% 87 87
B
Convection
70%<Io[100% 75 70
30%<Io[70% 85 78
Io[30% 86 81
C
Convection
60%<Io[100% 81 75
30%<Io[60% 86 81
Io[30% 87 83
D, F
Convection
70%<Io[100% 73 67
30%<Io[70% 83 76
Io[30% 84 77
E
Convection
70%<Io[100% 73 75
30%<Io[70% 82 83
Io[30% 83 84
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-25
LFA
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¡The operative ambient temperature is different by with / without
chassis cover or mounting position. Derating curve is shown below.
Note: In the hatched area, the specification of Ripple, Ripple
Noise is different from other area.
¿ LFA10F
¿ LFA15F
¿ LFA30F
¿ LFA50F
Table 3.8 Temperatures of Point A, Point B LFA240F-O
Mounting
Method Cooling Method Load factor Max temperature
Point A[C] Point B[C]
A Convection
75%<Io[100% 75 70
50%<Io[75% 82 79
Io[50% 86 85
B
Convection
75%<Io[100% 63 61
50%<Io[75% 73 73
Io[50% 81 83
C
Convection
75%<Io[100% 76 73
50%<Io[75% 81 79
Io[50% 87 85
D
Convection
75%<Io[100% 66 55
50%<Io[75% 74 65
Io[50% 84 78
E
Convection
75%<Io[100% 62 62
50%<Io[75% 73 74
Io[50% 81 84
F
Convection
75%<Io[100% 68 62
50%<Io[75% 77 73
Io[50% 84 83
A,B,C,D,E,F Forced air 70%<Io[100% 75 75
Io[70% 75 75
Table 3.9 Temperatures of Point A, Point B, Point C, Point D LFA300F-O
Mounting
Method Cooling Method
Load factor
Max temperature
Point A[C] Point B[C] Point C[C] Point D[C]
A Convection
80%<Io[100% 70 86
60%<Io[80% 75 88
Io[60% 79 89
B
Convection
80%<Io[100% 57 68
60%<Io[80% 62 71
Io[60% 71 79
C
Convection
80%<Io[100% 69 75
60%<Io[80% 74 75
Io[60% 83 82
D
Convection
80%<Io[100% 58 62
60%<Io[80% 64 66
Io[60% 75 75
E
Convection
80%<Io[100% 57 80
60%<Io[80% 63 83
Io[60% 74 88
F
Convection
80%<Io[100% 61 68
60%<Io[80% 68 71
Io[60% 76 80
A,B,C,D,E and F
(3.3V/5V/12V/15V)
Forced air 50%<Io[100%
75 75 85 85
Io[50% 75 75 85 85
A,B,C,D,E and F
(24V/30V/36V/48V)
Forced air 50%<Io[100%
75 75 85 85
Io[50% 75 75 85 85
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-26
LFA
*Inside[ ] is with case cover
*Inside[ ] is with case cover
Fig.3.3 Ambient temperature derating curve (refer to Table 3.1)
Fig.3.4 Ambient temperature derating curve (refer to Table 3.2)
*Inside[ ] is with case cover
*Inside[ ] is with case cover
Fig.3.5 Ambient temperature derating curve (refer to Table 3.3)
Fig.3.6 Ambient temperature derating curve (refer to Table 3.4)
-10 70 [60] 60 [50] 50 [40] 4030
11
2
) 2 Forced air (0.5m
3
/min
1 Convection
80
100
60
40
35
20
020100
Load factor [%]
[C]Ambient temperature
(B), (C)mounting(A), (D), (E), (F)mounting (A) ~ (F)
mounting
-10 70 [60] 60 [50] 50 [40] [30] 4030
11
2
) 2 Forced air (0.5m
3
/min
1 Convection
80
100
60
40
35
20
020100
Load factor [%]
[C]Ambient temperature
(A), (B), (C), (D)mounting(E), (F)mounting (A) ~ (F)
mounting
-10 70 [60] 60 [50] 50 [40] 40 [30] 30
11
2
2
Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
20
020100
Load factor [%]
[C]Ambient temperature
(A), (C)mounting(D), (E)mounting
1(F)mounting (A) ~ (F)
mounting
1(B)mounting
-10 70 [50] 60 [40] 50 [30] 40 [20] 30 [10]
1
1
2
2
Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
20
020100
Load factor [%]
[C]Ambient temperature
(B)mounting
(D)mounting
1(C), (E)mounting
1(F)mounting (A) ~ (F)
mounting
1(A)mounting
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¿ LFA75F
¿ LFA100F
¿ LFA100F-O-SN
¿ LFA150F
¿ LFA150F-O-SN
¿ LFA240F
¿ LFA240F-O-SN
¿ LFA300F
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-27
LFA
*Inside[ ] is with case cover
Fig.3.7 Ambient temperature derating curve (refer to Table 3.5)
-10 70 [50] 60 [40] 50 [30] 40 [20] 0 [10] 3
11
2
2
Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
20
020100
Load factor [%]
[C]Ambient temperature
(C)mounting(D)mounting
1(E), (F)mounting (A) ~ (F)
mounting
1(A), (B)mounting
Fig.3.8 Ambient temperature derating curve (refer to Table 3.6)
Fig.3.10 Ambient temperature derating curve (refer to Table 3.7)
Fig.3.12 Ambient temperature derating curve (refer to Table 3.8)
Fig.3.13 Ambient temperature derating curve
Fig.3.14 Ambient temperature derating curve (refer to Table 3.9)
1(C)mounting
1(A)mounting
1(B)mounting
1(D), (E), (F)mounting
-10 7060504003554535
2 Forced air (0.5m
3
/min)
1 Convection
80
75
100
60
40
50
20
020100
Load factor [%]
[C]Ambient temperature
2(A) ~ (F)
mounting
-10 7060504003
2 Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
2
70
30
0
0255654535250100
Load factor [%]
[C]Ambient temperature
1(C)mounting
1(A)mounting
1(B)mounting
1(D), (E), (F)mounting
2(A) ~ (F)
mounting
-10 7060504003
2 Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
2
25
0
02011500
Load factor [%]
[C]Ambient temperature
1(C)mounting
1(A)mounting
1(B)mounting
1(D), (F)mounting
1(E)mounting
2(A) ~ (F)
mounting
Fig.3.11 Ambient temperature derating curve
-10 60504003
2 Forced air (0.5m
3
/min)
1 Convection
80
75
100
60
40
20
10
020100
Load factor [%]
[C]Ambient temperature
1(C)mounting 1(A)mounting
1(B)mounting
1(D), (E)mounting 2(A) ~ (F)
mounting
4535
Fig.3.9 Ambient temperature derating curve
-10 504003
2 Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
20
0201500
Load factor [%]
[C]Ambient temperature
1(C)mounting
1(A)mounting
1(B)mounting
2(A) ~ (F)
mounting
70
30
554525
50
1(D), (E)mounting
-10 60504003
2 Forced air (0.5m
3
/min)
1 Convection
80
100
60
40
20
020100
Load factor [%]
[C]Ambient temperature
1(C)mounting
1(A)mounting
1(B)mounting
1(D)mounting
1(E)mounting
2(A) ~ (F)
mounting
25
15
10
70
525
Output
voltage Output power[W]
1Convection 2Forced air
3.3V 132.0 198.0
5V 200.0 300.0
12V 204.0 324.0
15V 210.0 330.0
24V 300.0 336.0
30V 300.0 330.0
36V 302.4 338.4
48V 302.4 336.0
-10 7060504003
2 Forced air
(1.0m
3
/min) :3.3V/5V/12V/15V
:24V/30V/36V/48V
(0.5m
3
/min)
1 Convection
80
100
60
40
20
020100
Load factor[%]
[C]Ambient temperature
1(A)mounting
1(B), (C)mounting
1(D)mounting
1(E), (F)mounting
2(A) ~ (F)
mounting
50
25
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3.4 Expectancy life and warranty
¡Expectancy Life.
Table 3.10 Expectancy Life (LFA10F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A, D , E , F Convection Ta = 40Cor less
6years 6years
Ta = 50C
5years 3years
B, C Convection Ta = 45Cor less
6years 6years
Ta = 55C
5years 3years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
Table 3.11 Expectancy Life (LFA15F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A, B, C, D Convection Ta = 40Cor less
6years 6years
Ta = 50C
5years 3years
E , F Convection Ta = 35Cor less
6years 6years
Ta = 45C
5years 3years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
¡Derating curve depending on input voltage
Derating curve depending on input voltage is shown in Fig.3.8.
¡Mounting method
¡(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 contact
our sales or engineering departments.
3.3 Mounting screw
¡The mounting screw should be M3. The hatched area shows the
allowance of metal parts for mounting.
¡If metallic fittings are used on the component side of the board,
ensure there is no contact with surface mounted components.
¡This product uses SMD technology.
Please avoid the PCB installation method which includes the twist-
ing stress or the bending stress.
*Recommendation to electrically connect FG to metal chassis for
reducing noise.
¿ LFA10F, LFA15F
¿
LFA30F, LFA50F, LFA75F, LFA100F,
LFA150F
¿ LFA240F, LFA300F
[AC V]
[%]
100
80
85 90
Load factor
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-28
LFA
Fig.3.20 Allowance of metal parts for mounting
(LFA30F, LFA50F, LFA75F, LFA100F, LFA150F)
Fig.3.19 Allowance of metal parts for mounting
(LFA10F, LFA15F)
8
8
8
8
CN1
8
8
88
8
88
8
CN1
Unit [mm]
Unit [mm]
Fig.3.18 Mounting method
(D) (E) (F)
CN1
CN1
CN1
Standard
Position
CN1
(
A
)(
B
)(C)
CN1
CN1
Fig.3.21 Allowance of metal parts for mounting
(LFA240F, LFA300F)
Unit [mm]
Fig.3.17 Derating curve depending on input voltage
8
8
8
8
88
8
88
8
CN1, TB1
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Table 3.12 Expectancy Life ( LFA30F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A, B, C Convection Ta = 40Cor less
6years 6years
Ta = 50C
5years 3years
D, E, F Convection Ta = 35Cor less
6years 6years
Ta = 45C
5years 3years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
Table 3.13 Expectancy Life ( LFA50F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A Convection Ta = 40Cor less
6years 6years
Ta = 50C
5years 3years
B , D Convection Ta = 35Cor less
6years 6years
Ta = 45C
5years 3years
C, E Convection Ta = 30Cor less
6years 6years
Ta = 40C
5years 3years
F Convection Ta = 25Cor less
6years 6years
Ta = 35C
5years 3years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
Table 3.14 Expectancy Life ( LFA75F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A, B Convection Ta = 40Cor less
6years 6years
Ta = 50C
5years 3years
C Convection Ta = 35Cor less
6years 6years
Ta = 45C
5years 3years
D Convection Ta = 30Cor less
6years 6years
Ta = 40C
5years 3years
E, F Convection Ta = 20Cor less
6years 6years
Ta = 30C
5years 3years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
Table 3.15 Expectancy Life (LFA100F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A Convection Ta = 40Cor less
6years 6years
Ta = 50C
5years 3years
B, C Convection Ta = 35Cor less
6years 6years
Ta = 45C
5years 3years
D, E , F Convection Ta = 35Cor less
6years 6years
Ta = 45C
5years 3years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
Table 3.16 Expectancy Life ( LFA150F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A Convection Ta = 30Cor less
6years 6years
Ta = 40C
6years 5years
B Convection Ta = 25Cor less
6years 6years
Ta = 35C
6years 6years
C Convection Ta = 25Cor less
6years 6years
Ta = 35C
6years 5years
D, F Convection Ta = 25Cor less 6years 6years
E Convection Ta = 25Cor less 6years 5years
A,B,C,D,E,F Forced air Ta = 60C 5years 5years
Table 3.17 Expectancy Life ( LFA240F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A Convection Ta = 30Cor less
6years 6years
Ta = 40C
5years 3years
B, C Convection Ta = 20Cor less
6years 6years
Ta = 30C
5years 3years
D, F Convection Ta = 20Cor less 6years 5years
E Convection Ta = 15Cor less 6years 5years
A,B,C,D,E,F Forced air Ta = 60C 5years 3years
Table 3.18 Expectancy Life ( LFA300F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Expectancy Life
Io[75%
75%<Io[100%
A Convection Ta = 30Cor less
6years 6years
Ta = 40C
5years 3years
B, C Convection Ta = 20Cor less
6years 6years
Ta = 30C
5years 3years
D Convection Ta = 25Cor less 6years 5years
E, F Convection Ta = 20Cor less 6years 5years
A,B,C,D,E,F Forced air Ta = 50C 5years 3years
¡Warranty
Table 3.19 Warranty
( LFA10F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A, D , E , F Convection Ta = 40Cor less 5years 5years
Ta = 50C5years 3years
B , C Convection Ta = 45Cor less 5years 5years
Ta = 55C5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.20 Warranty ( LFA15F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A, B , C , D Convection Ta = 40Cor less 5years 5years
Ta = 50C5years 3years
E , F Convection Ta = 35Cor less 5years 5years
Ta = 45C5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.21 Warranty ( LFA30F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A, B, C Convection Ta = 40Cor less 5years 5years
Ta = 50C5years 3years
D, E, F Convection Ta = 35Cor less 5years 5years
Ta = 45C5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-29
LFA
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4 Ground
¡When installing the power supply with your unit, ensure that the
input FG terminal of CN1 or mounting hole FG is connected to
safety ground of the unit.
5.1 Outline of options
*Please inquire us for details of specifications and delivery timing.
*You can combine multiple options. Some options, however, can-
not be combined with other options. Please contact us for details.
¿ -C
-Option -C units have coated internal PCB for better moisture
resistance.
5 Option and Others
Table 3.22 Warranty ( LFA50F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A Convection Ta = 40Cor less 5years 5years
Ta = 50C5years 3years
B , D Convection Ta = 35Cor less 5years 5years
Ta = 45C5years 3years
C, E Convection Ta = 30Cor less 5years 5years
Ta = 40C5years 3years
F Convection Ta = 25Cor less 5years 5years
Ta = 35C5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.23 Warranty ( LFA75F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A, B Convection Ta = 40Cor less 5years 5years
Ta = 50C5years 3years
C Convection Ta = 35Cor less 5years 5years
Ta = 45C5years 3years
D Convection Ta = 30Cor less 5years 5years
Ta = 40C5years 3years
E, F Convection Ta = 20Cor less 5years 5years
Ta = 30C5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.24 Warranty ( LFA100F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A Convection Ta = 40Cor less 5years 5years
Ta = 50C5years 3years
B, C Convection Ta = 35Cor less 5years 5years
Ta = 45C5years 3years
D, E, F Convection Ta = 25Cor less 5years 5years
Ta = 35C5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.25 Warranty ( LFA150F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A Convection Ta = 30Cor less 5years 5years
Ta = 40C5years 5years
B Convection Ta = 25Cor less 5years 5years
Ta = 35C5years 5years
C Convection Ta = 25Cor less 5years 5years
Ta = 35C5years 3years
D, F Convection Ta = 25Cor less 5years 5years
E Convection Ta = 25Cor less 5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.26 Warranty ( LFA240F-O)
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A Convection Ta = 30Cor less 5years 5years
Ta = 40C5years 3years
B, C Convection Ta = 20Cor less 5years 5years
Ta = 30C5years 3years
D, F Convection Ta = 20Cor less 5years 3years
E Convection Ta = 15Cor less 5years 3years
A,B,C,D,E,F Forced air Ta = 60C5years 3years
Table 3.27 Warranty ( LFA300F-O )
Mounting
Method
Cooling
Method
Average ambient
temperature (year)
Warranty
Io[75%
75%<Io[100%
A Convection Ta = 30Cor less 5years 5years
Ta = 40C5years 3years
B, C Convection Ta = 20Cor less 5years 5years
Ta = 30C5years 3years
D Convection Ta = 25Cor less 5years 3years
E
, F Convection Ta = 20Cor less 5years 3years
A,B,C,D,E,F Forced air Ta = 50C5years 3years
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-30
LFA
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¿ -G
-Option -G units are low leakage current type.
-Differences from standard versions are summarized in Table 5.1.
Table 5.1 Low leakage current type
Leakage Current
(AC240V 60Hz) 0.15mA max
Conducted Noise N/A
Output Ripple Noise Please contact us for details about
Ripple Noise
*This is the value that measured on measuring board with capaci-
tor of 22μF at 150mm from output connector.
Measured by 20MHz oscilloscope or Ripple-Noise meter (Equivalent
to KEISOKU-GIKEN:RM-103).
¿ -H (LFA100F-24, LFA150F-24, LFA240F-24,
LFA300F-24/30/36/48-TY)
-Option -H units can output the peak current.
-Peak load is possible to draw as below.
Input voltage is AC90V to AC264V.
t1[10[sec]
lp[rated peak current
lave[rated output current
Duty = t1 X100[%] [35%
t1+t2
In case of LFA300F duty is depended on peak wattage.
Please contact us about the detail.
Remarks:
*There is possibility that an internal device is damaged when the
specification is exceeded.
¿ -J (LFA300F)
-Option -J units, the input and output connector are changed to
EP connectors (Mfr. Tyco Electronics).
-The appearance in option -J units is defferent from the standard
untis. Please contact us about the detail.
¿ -J1
-Option -J1 units, the Input and Output connector is VH connec-
tors (Mfr. J.S.T.).
-LFA300F appearance of option -J units is defferent from the
standard appearance. Please contact us about the detail.
¿ -S--SN
--S indicates a type with chassis, and -SN indicates a type with
chassis and cover (Refer to external view). Refer to “Derating
Curves”in Section 3.2.
-Please contact us about the detail of LFA300F.
¿ -SNF (LFA300F-5/12/24-TY)
-In option -SNF, the cover, chassis and cooling fan are added.
-The appearance of option -J units is defferent from the of stan-
dard appearance. Please contact us about the detail.
-Oil and other chemical liquid splashing environment may cause
the performance degradation and failure.
¿ -Y
-Option -Y units can adjust the output voltage by the potentiom-
eter is attached .
-Refer to the adjustable range to the table 5.2 and table 5.3.
¡LFA10F, LFA15F, LFA30F, LFA50F, LFA75F
Table 5.2 Output voltage adjustment range
Output voltage Output voltage adjustment range[V]
3.3V*2.85 to 3.63
5V 4.5 to 5.5
12V 10.8 to 13.2
15V 13.5 to 16.5
24V 21.6 to 26.4
36V 32.4 to 39.6
48V 43.2 to 52.8
*Some of the product, -Y is standard equipment.
(LFA10F-3R3-Y,LFA15F-3R3-Y,LFA30F-3R3-Y,
LFA50F-3R3-Y,LFA75F-3R3-Y)
¡LFA100F, LFA150F, LFA240F, LFA300F
Table 5.3 Output voltage adjustment range
Output voltage Output voltage adjustment range[V]
3.3V*2.85 to 3.63
5V*4.5 to 5.5
12V 10.8 to 13.2
15V 13.5 to 16.5
24V 21.6 to 27.5
30V (LFA300F) 27.0 to 33.0
36V 32.4 to 39.6
48V 39.6 to 52.8
*Some of the product, -Y is standard equipment.
(LFA100F-3R3-Y, LFA100F-5-Y,
LFA150F-3R3-Y, LFA150F-5-Y, LFA300F-O-TY)
-To increase an 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 potenti-
ometer, because there is possibility of electric shock and the
breakdown as contacting to other internal circui by telectrically
conductive tool.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-31
LFA
t 1 t 2
l p
l ave : average current
: peak current
Output current [A]
Fig.5.1 Peak current
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¿ -R (LFA100F, LFA150F, LFA240F, LFA300F)
-You can control output ON/OFF remotely in Option -R units. To
do so, connect an external DC power supply and apply a volt-
age to a remote ON/OFF connector, which is available as op-
tion.
Model Name Built-in Resistor
Ri [ W]
Voltage between RC (+)
and RC (-) [V] Input
Current
[mA]
Output ON Output OFF
LFA100F, LFA150F,
LFA240F, LFA300F 780 4.5 - 12.5 0 - 0.5 20max
-
Dedicated harnesses are available for your purchase. Please
see Optional Parts for details.
*1 If the output of an external power supply is within the range
of 4.5 - 12.5V, you do not need a current limiting resistor R. If
the output exceeds 12.5V, however, please connect the cur-
rent limiting resistor R.
To calculate a current limiting resistance value, please use the fol-
lowing equation.
R[W]=
*
Please wire carefully. If you wire wrongly, the internal components
of a unit may be damaged.
¡Remote ON/OFF circuits (RC+ and RC-) are isolated from input,
output and FG.
¿ -R2 (LFA100F, LFA150F, LFA240F, LFA300F)
-The usege is the same as option -R, please refer to Option -R.
-Reducing standby power is possible by OFF signal of the re-
mote control.
-Start up time by ON signal in remote control is 350ms(typ).
-The latch condition in overvoltage protection is removed by tog-
gling ON/OFF signal of remote control.
-Standby power
LFA100F,LFA150F,LFA240F
0.2Wtyp (AC100V), 0.7Wtyp (AC200V)
LFA300F
0.25Wtyp (AC100V), 1.1Wtyp (AC200V)
¿ -T (LFA240F, LFA300F)
-Option -T units have vertically positioned screws on a terminal
block.
-Please contact us for details about appearance.
¡The screw can be held to terminal block by inserting and lifting the
screwdriver from the side of terminal block.
¿ -T1 (LFA300F)
-Option -T units have horizontally positioned screws on a termi-
nal block.
-Please contact us for details about appearance.
5.2 Others
¡This power supply is the rugged PCB type. Do not drop conduc-
tive objects in the power supply.
¡At light load, there remains high voltage inside the power supply
for a few minutes after power OFF.
So, at maintenance, take care about electric shock.
¡This power supply is manufactured by SMD technology. The
stress to PCB like twisting or bending causes the defect of the
unit, so handle the unit with care.
-Tighten all the screws in the screw hole.
-Install it so that PCB may become parallel to the clamp face.
-Avoid the impact such as drops.
FG
AC (N)
AC (L)
-V
+V
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-32
LFA
Fig.5.2 Example of using a remote ON/OFF circuit
Ri
RC(-)
RC(+)
2
1
*1
RSW
External Power
Source
Remote ON/OFF connector (Optional)
Input Current
Inside of a Power
Supply
Vcc-(1.1+RiX0.005)
0.005
Fig.5.3 Example of option -T
Fig.5.4 lifting method
Fig.5.5 Example of option -T1
+ screwdriver
terminal block
screw
f5.5MAX
FG
AC (N)
AC (L)
-V
+V
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¡While turning on the electricity, and for a while after turning off,
please don’t touch the inside of a power supply because there are
some hot parts in that.
¡When a mass capacitor is connected with the output terminal
(load side), the output might become the stop or an unstable oper-
ation. Please contact us for details when you connect the capaci-
tor.
¿ LFA10F, LFA15F
¡When these power supplies are connected to the input terminal in
parallel, the total capacitance between line and line becomes big.
Therefore, the electrical discharge resistance on the safety stan-
dard might become necessary.
Please contact us for details when safety standard is necessary at
multiple units usage.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LFA-33
LFA
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