Cosel SPLFA30F User manual

Basic Characteristics Data
*1The value of input current is at ACIN 100V and rated load.
*2Refer to Instruction Manual 2.
*3Output side PCB.
*4Built-in power supply PCB.
SPLFA-12
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
SPLFA30F Flyback converter 130 0.65 Thermistor CEM-3 Ye s Ye s No
SPLFA50F Active filter 60 - 440 0.67 Thermistor CEM-3 Ye s Ye s No
Flyback converter 130
SPLFA75F Active filter 60 - 440 1.0 Thermistor CEM-3 Ye s Ye s No
Flyback converter 130
SPLFA100F Active filter 60 1.3 Thermistor CEM-3 Ye s
*3
Ye s
*4Ye s No
Forward converter 140
SPLFA150F Active filter 60 2.0 Thermistor CEM-3 Ye s
*3
Ye s
*4Ye s No
Forward converter 140
March13,2019

3 Assembling and Installation Method SPLFA-15
3.1 Derating
3.2 Installation method
3.3 Clearance Information
SPLFA-15
SPLFA-16
SPLFA-17
1 Function SPLFA-14
2Series Operation and Parallel Operation SPLFA-15
1.1 Input voltage range
1.2 Inrush current limiting
1.3 Overcurrent protection
1.4 Overvoltage protection
1.5 Thermal protection
1.6 Isolation
SPLFA-14
SPLFA-14
SPLFA-14
SPLFA-14
SPLFA-14
SPLFA-14
4.1 Outline of options
4.2 Others
SPLFA-17
SPLFA-17
4 Option and Others SPLFA-17
2.1 Series Operation
2.2 Parallel Operation
SPLFA-15
SPLFA-15
AC-DC Power Supplies Open Frame/Enclosed Value-added Type
Instruction Manual
SPLFA-13
March13,2019

1.1 Input voltage range
¡Input voltage range of the power supplies is from AC85V to
AC264V (please see SPECIFICATIONS for details).
¡In cases that conform with safety standard DEN-AN, input voltage
range is AC100-AC120V (50/60Hz).
¡If input value doesn’t fall within above range, a unit may not oper-
ate in accordance with specications 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 specication. Please contact us.
¿ SPLFA30F
¡A power factor improvement circuit (active lter) is not built-in. If
you use multiple units for a single system, standards for input har-
monic current may not be satised. Please contact us for details.
¿ SPLFA30F, SPLFA50F, SPLFA75F,
SPLFA100F, SPLFA150F
¡Operation stop voltage is set at a lower value than that of a stan-
dard version (derating is needed).
-Use Conditions
SPLFA30F 10W
SPLFA50F 15W
SPLFA75F
SPLFA100F
SPLFA150F
25W
30W
50W
Input AC50V
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.
¿ SPLFA30F, SPLFA50F, SPLFA75F,
SPLFA100F, SPLFA150F
¡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 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.
1.5 Thermal protection
¿ SPLFA100F, SPLFA150F
¡A thermal protection circuit is built-in.
The thermal protection circuit may be activated under the follow-
ing conditions and shut down the output.
1
When a temperature continue to exceed the values determined
by the derating curve.
2
When a current exceeding the rated current is applied.
3When convection stops.
If the thermal protection circuit is activated, shut off the input volt-
age and eliminate all the overheating conditions. To recover the
output voltage, have enough time to cool down the unit before
turning on the input voltage again.
1.6 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.
AC-DC Power Supplies Open Frame/Enclosed Value-added Type
Instruction Manual
SPLFA-14
March13,2019

2 Series Operation and
Parallel Operation
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 Derating
¡The operative ambient temperature is different mounting position.
Derating curve is shown below.
Note: In the hatched area, the specification of Ripple, Ripple
Noise is different from other area.
¿ SPLFA30F
¿ SPLFA50F
3 Assembling and
Installation Method
2.1 Series Operation
¿ SPLFA30F, SPLFA50F, SPLFA75F
¡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.
¿ SPLFA100F, SPLFA150F
¡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 ows into a power supply.
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
+
-
Fig.2.3 Examples of connecting in series operation
Fig.2.1 Examples of connecting in series operation (a)
(a) (b)
Load
Power
Supply
+
-
+
-
Power
Supply
LoadLoad
Power
Supply
+
-
+
-
Power
Supply
AC-DC Power Supplies Open Frame/Enclosed Value-added Type
Instruction Manual
I2
I1I3
-
+
+
-
Load
Power
Supply
Power
Supply
Fig.2.4 Example of redundancy operation
Fig.3.1 Ambient temperature derating curve
Fig.3.2 Ambient temperature derating curve
-10 605004
11
2
2
Forcedair (0.5m
3
/min)
1 Convection
80
100
60
40
20
0
3010 200
Load factor [%]
[C]
Ambient temperature
(A), (C)mounting(D), (E)mounting
1(F)mounting
(A) ~ (F)
mounting
1(B)mounting
-10 504003
111
2
2
Forcedair (0.5m
3
/min)
1 Convection
80
100
60
40
20
0
20100
Load factor [%]
[C]
Ambient temperature
(D)mounting(C), (E)mounting
1(F)mounting
(A) ~ (F)
mounting
1(A)mounting
(B)mounting
SPLFA-15
March13,2019

¡Derating curve depending on input voltage
Derating curve depending on input voltage is shown in Fig.3.4.
¿ SPLFA75F ¡Mounting method
(A) (B) (C)
(D) (E) (F)
Input wire
Input wire
Input wire
Input wire
Input wire
Input wire
Standard position
Recommended Recommended Recommended
Not recommended Not recommended Not recommended
Fig.3.7 Mounting method
*Followings should be prohibited because it may cause failure,
malfunction, smoke or re.
1Continuous overload
2The input voltage is continuous less than AC85V or exceed
AC264V.
3More than rated output voltage is applied to output terminal of
power supply.
4When the current and the temperature which deviates from the
derating characteristic shown in Fig.3.1 to Fig.3.5.
3.2 Installation method
¡Installation Method
Fig.3.8 Installation Method
*Please x the power supply with screws at installation.
Fig.3.9 Installation Method
*Please x the power supply with screws at installation.
*Derating curve changes in the case of attachment of Fig.3.9.
Please contact us for details.
¿ SPLFA100F
¿ SPLFA150F
-10 605004
11
2
2
Forced air(0.5m
3
/min)
1 Convection
80
100
6
75
0
4
50
0
2
30
0
0
3010 22500
Load factor [%]
[C]Ambient temperature
(A)mounting(E), (F)mounting
1(D)mounting
(A) ~ (F)
mounting
1(B)mounting 1(C)mounting
-10 605004
11
2
2
Forced air(0.5m
3
/min)
1 Convection
80
100
6
70
0
4
50
0
20
0
3010 22545 55500
Load factor [%]
[C]Ambient temperature
(A)mounting(E), (F)mounting
1(D)mounting
(A) ~ (F)
mounting
1(B)mounting 1(C)mounting
AC-DC Power Supplies Open Frame/Enclosed Value-added Type
Instruction Manual
Fig.3.6 Derating curve depending on input voltage
[AC V]
[%]
100
80
85 90
Load factor
Fig.3.4 Ambient temperature derating curve
Fig.3.5 Ambient temperature derating curve
Fig.3.3 Ambient temperature derating curve
-10 504003
11
2
2
Forcedair (0.5m
3
/min)
1 Convection
80
100
60
40
20
0
20100
Load factor [%]
[C]
Ambient temperature
(C)mounting(D)mounting
1(E), (F)mounting
(A) ~ (F)
mounting
1(A), (B)mounting
SPLFA-16
March13,2019

3.3 Clearance Information
¡100mm or more top and side clearance from the unit to keep
proper ventilation.
100mm
100mm100mm
Fig.3.10 Clearance from the unit
4 Option and Others
4.1 Outline of options
¿ -C
-Option -C units have coated internal PCB for better moisture
resistance.
4.2 Others
¡While turning on the electricity, and for a while after turning off,
please don’t touch the power supply because that may be hot.
¡When a mass capacitor is connected with the output terminal (load
side), the output might become the stop or an unstable operation.
Please contact us for details when you connect the capacitor.
AC-DC Power Supplies Open Frame/Enclosed Value-added Type
Instruction Manual
SPLFA-17
March13,2019
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