Cosel SNDPF1000 User manual

SNDPF-4
Basic Characteristics Data
Basic Characteristics Data
Model Circuit method
Switching
frequency
[kHz]
Input
current
[A]
Rated
input fuse
Inrush
current
protection
circuit
PCB/Pattern
Series/Parallel
operation availability
Material
Single
sided Double sided Series operation Parallel operation
SNDPF1000 Active filter 130 11.5 *1250V 20A SCR FR-4 Yes No Yes*3
8.5 *2
*1The value of input current is at AC100V and 1000W load.
*2The value of input current is at AC200V and 1500W load.
*3Refer to Instruction Manual 5 Series and Parallel Operation.
SNDPF
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1 Terminal Connection SNDPF-6
2 Input Voltage Derating SNDPF-6
6.1 Mounting method
6.2 Derating
SNDPF-9
SNDPF-9
4.1 Overcurrent protection
4.2 Overvoltage protection
4.3 Thermal protection
4.4 Enable signal (ENA)
4.5 Inverter operation monitor (IOG)
4.6 Auxiliary power supply circuit for external signal (AUX)
4.7 Isolation
5 Series and Parallel Operation SNDPF-8
5.1 Series operation
5.2 Parallel operation
5.3 Synchronized start up of Several power supplies
6 Implementation-Mounting Method SNDPF-9
SNDPF-7
SNDPF-7
SNDPF-7
SNDPF-7
SNDPF-8
SNDPF-8
SNDPF-8
SNDPF-8
SNDPF-8
SNDPF-9
3 Standard Connection Method SNDPF-6
3.1 Standard connection method
3.2 Connection of loaded circuit
3.3 Heatsink
SNDPF-6
SNDPF-7
SNDPF-7
4 Function SNDPF-7
AC-DC Converters Value-added type
SNDPF-5
SNDPF
Instruction Manual
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AC-DC Converters Value-added type Instruction Manual
SNDPF-6
SNDPF
1 Terminal Connection
TB1
1
2
3
1414B
A12 14 14
CN1 CN2 SW1 CN3 CN4 CN5
Fig.1.1 Terminal Connection
Table 1.1 Terminal connection and functions
No Terminal
connection Function
1AC(L) AC Input
2AC(N)
3FG FG
Table 1.2 Terminal connection and functions of CN1
Pin No. Function
1 ENA-B : Enable signal for SNDBS
2 -VOUT : -DC output
3 NC : No connection
4 +VOUT : +DC output
Table 1.3 Terminal connection and functions of CN2
Pin No. Function
1 ENA-B/A: Enable signal for SNDHS
2 -VOUT : -DC output
3 NC : No connection
4 +VOUT : +DC output
Housing for protection is attached on CN2 at shipping from factory
Table 1.4 Terminal connection and functions CN3
Pin No. Function
1 IOG : Inverter operation monitor
2 AUX :
Auxiliary power supply for external signal
Table 1.5 Terminal connection and functions of CN4 and CN5
Pin No. Function
1C-AUX : Auxiliary power supply for external sig-
nal for synchronized start up
2 C-ENA : Enable signal for synchronized start up
3 SG : Signal ground
4 CB : Current balance
Common signs among CN4 and CN5 represent the same potential.
Table 1.6 Mating connectors and terminals of CN1,CN2,CN3,CN4 and CN5
Connector Mating
connector Terminal Mfr.
CN1
CN2 B3P4-VH-B VHR-4N Reel :SVH-21T-P1.1
Loose:BVH-21T-P1.1
J.S.T.CN3 B2B-XH-AM XHP-2 Reel :SXH-001T-P0.6
Loose:BXH-001T-P0.6
CN4
CN5 B4B-XH-AM XHP-4 Reel :SXH-001T-P0.6
Loose:BXH-001T-P0.6
2 Input Voltage Derating
¡Fig.2.1 shows rated output for each input voltage section.
Maximum output should be within this range.
85
850
950
1000
1500
90 95 170
Input voltage [V]
Output power [W]
Fig.2.1 Input voltage derating curve
3 Standard Connection
Method
3.1 Standard connection method
¡To use SNDPF1000, connection shown in Fig.3.1 and outside at-
tached components are required. Through this connection, DC output
voltage can be obtained fromAC input voltage.
AC input voltage and DC output voltage are not insulated.
AC IN
FG FG FG
AC(L)
AC(N)
SNDPF1000
+V
- V
ENA
+V
- V
ENA (SNDBS)
RC1 (SNDHS)
SNDBS, SNDHS series
Fig.3.1 Standard connection method
OG UPFRHKPFF   

AC-DC Converters Value-added type Instruction Manual
SNDPF-7
SNDPF
3.2 Connection of loaded circuit
¡Control load current so that it may flow only when the terminal
ENA is at “H”.
¡For connecting the SNDBS/SNDHS series, see FIg.3.1.
¡For connection of loads except the SNDBS/SNDHS series, please
contact Cosel development department.
3.3 Heatsink
¡The power supply adopts the conduction cooling system. Attach a
heatshink to the aluminum base plate to cool the power supply for
use.
Refer to 6.2 Derating.
4 Function
4.1 Overcurrent protection
¡The overcurrent protection circuit is not built-in.
¡In order to secure the safety, use the fuse at output side for con-
nection of loads except the SNDBS/SNDHS series.
4.2 Overvoltage protection
¡The overvoltage protection circuit is built-in. The AC input should
be shout down if overvoltage protection is in operation.
When this function operates, the power factor corrector function
does not operate, and output voltage becomes the full-wave recti-
fied AC input voltage.
The minimum interval of AC recycling for recovery is a few min-
utes which output voltage drops below 20V.
Remarks:
Please note that the unit’s internal components may be damaged
if excessive voltage (over rated voltage) is applied to output termi-
nal of power supply. This could happen when the customer tests
the overvoltage performance of the unit.
4.3 Thermal protection
¡Thermal protection circuit is built-in.
If this function comes into effect, shut down the output, eliminate
all possible causes of overheating, and drop the temperature to
normal level.
To prevent the unit from overheating, avoid using the unit in a
dusty, poorly ventilated environment.
¡When this function operates, the power factor corrector function
does not operate, and output voltage becomes the full-wave recti-
fied AC input voltage and ENA output changes into “L”.
¡When this function operates, the power factor corrector function
does not operate, and output voltage becomes the full-wave recti-
fied AC input voltage.
4.4 Enable signal (ENA)
¡Use ENA to control starting of the loaded power supply.
¡When inrush current protection circuit is released, ENA outputs “H” .
If load current flows without releasing of the circuit, the resistor may
be damaged.
¡Setting of ENA has two kinds of SNDHS use (ENA-A) and the
SNDHS use (ENA-B).
The setting of ENA-A is possible only in CN2.
Please connect the ENA-A terminal to RC1 terminal of the SNDHS
series.
Table 4.1 Specification of ENA
No. Item ENA-A ENA-B
1 Load of SNDPF1000 SNDHS series SNDBS series
2 Signal pin ENA-B/A at CN2
ENA-B at CN1
ENA-B/A at CN2
3 Base pin -VOUT
4 Setting of SW1 A B
5 Function Output possible “H”
Output prohibited “L”
6 Level voltage “H” 5.5V typ at 1mA 7.5V typ at 1mA
7 Level voltage “L” Open collector
7.5V typ
CN1 ENA-B
-VOUT
CN2 ENA-B/A
2kW
SW1
AUX
4.7kW
A
B
Fig.4.1 Internal circuit of ENA
SNDPF1000 CN1
CN2
SW1:ENA-A SW1:ENA-B
+V
ENA-B
- V
+V
ENA
- V
+V
ENA-B/A
- V
+V
RC1
- V
SNDBS
400/700B SNDPF1000 CN1
CN2
+V
ENA-B
- V
+V
ENA
- V
+V
ENA-B/A
- V
+V
ENA
- V
SNDBS
400/700B
SNDBS
400/700B
SNDHS
50/100/250B
(a) Example of connection to
ENA using SNDHS (b) Example of connection to ENA using SNDBS
Fig.4.2 Example of connection to ENA
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AC-DC Converters Value-added type Instruction Manual
SNDPF-8
SNDPF
4.5 Inverter operation monitor (IOG)
¡Use IOG to monitor operation of the inverter.
When unit operation stopped due to overvoltage protection, ther-
mal protection or the event of a failure in the power supply, IOG-
signal state changes to ”H” from ”L” within 1 second.
And output voltage becomes an equal value to the full-wave recti-
fied AC input voltage.
If IOG signal status keeps ”H”, there is a possibility that unit and/or
external circuit is damaged. In case like this, please check the unit
and/or external circuit conditions in your system.
IOG can be used for monitoring failures such as redundant opera-
tion.
¡IOG may become unstable in case of start-up or sudden change
of load current. Set the timer with delay of more than 5 seconds.
¡During parallel operation, unstable condition may occur when load
current becomes lower than 10% of rated value.
Table 4.2 Specification of IOG
No. Item IOG
1 Function L Normal operation
H Malfunction of inverter
2 Output level L 0.6Vmax at 10mA 10mA max
H Open collector 35V max
3 Base pin -VOUT
4.6 Auxiliary power supply circuit for external
signal (AUX)
¡The AUX pin can be used as the power source with the open col-
lector output for lOG .
¡Shortprotection resistance (4.7kW) is built in.
Output voltage decreases as the output current increases.
4.7 Isolation
¡For a receiving inspection, such as Hi-Pot test, gradually increase
(decrease) the voltage for a 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.
5 Series and Parallel
Operation
5.1 Series operation
¡As input and output are not insulated, series operation is impos-
sible.
5.2 Parallel operation
¡Parallel operation is available by connecting the units as shown in
Fig.5.1.
Synchronization output current balance, ENA signal is performed.
¡As variance of output current drew from each power supply is
maximum 10%, the total output current must not exceed the value
determined by the following equation.
Output current in
parallel operation = the rated current
per unit X(number of unit)X0.9
In parallel operation, the maximum operative number of units is 5.
¡When the output-line impedance is high, the power supply is be-
come unstable. Use same length and thickness (width) wire (pattern)
for the current balance improvement.
¡Connect each input pin for the lowest possible impedance.
When the number of the units in parallel operation increases, input
current increases.
Adequate wiring design for input circuitry such as circuit pattern,
wiring and current for equipment is required.
If temperatures of aluminum base plates are different in the power
supply for parallel operation, values of output current will change
greatly.
Design radiation to equalize plate temperatures by attaching the
same heatsinks.
¡Fuse, each diode to the output terminal of each power supply in
order to ensure safety Please connect.
The output side diode if the following three parallel units are omit-
ted Can be.
¡Input voltage of the power supply to operate in parallel, please
supply the same strain.
¡Keep drawing current per pin below 7A for CN1/CN2.
Noise
Filter
AC IN
Load
*Common signs among CN4 and CN5 represent the same potential.
*Please connect each CB, C-AUX and C-ENA.
+V
Di
Di
Di
ENA
- V
+V
ENA
- V
+V
ENA
- V
SNDPF1000
CB SG C-AUX C-ENA
SNDPF1000
CB SG C-AUX C-ENA
SNDPF1000
CB SG C-AUX C-ENA
CN4
CN5
CN4
CN5
CN4
CN5
Fig.5.1 Parallel operation
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AC-DC Converters Value-added type Instruction Manual
SNDPF-9
SNDPF
5.3 Synchronized start up of Several power supplies
¡Make a connection in Figure 5.2, ENA signal to be synchronized,
even if you do not parallel operation is possible.
When all SNDPF1000 connected becomes able to work, ENA
signal turns into H .
When one of the SNDPF1000 connected is prohibited , ENA sig-
nal turns into L .
For parallel operation and shall not, eliminating the output side
diode, a fuse.
AC IN +V
ENA
- V
+V
ENA
- V
+V
ENA
- V
+V
ENA
- V
SNDPF1000
CB SG C-AUX C-ENA
SNDPF1000
CB SG C-AUX C-ENA
CN5
CN6
CN5
CN6
Load
Load
Parallel operation
Parallel operation
SNDBS
SNDBS
SNDBS
SNDBS
Fig.5.2 Synchronized start up connection Example
6 Implementation-
Mounting Method
6.1 Mounting method
¡The unit can be mounted in any direction. When two or more
power supplies are used side by side, position them with proper
intervals to allow enough air ventilation. Aluminum base plate
temperature around each power supply should not exceed the
temperature range shown in derating curve.
¡In case of metal chassis, keep the distance between d1 for to in-
sulate between lead of component and metal chassis.
If it is less than d1, insert the insulation sheet between power sup-
ply and metal chassis.
d1
d1
d1
d1
d1
d1=4mm min.
Fig.6.1 Mounting method
6.2 Derating
¡Use with the conduction cooling (e.g. heat radiation by conduction
from the aluminum plate to the attached heat shink).
Fig.6.2 shows the derating curve based on the aluminum base
plate temperature.
¡Please measure the temperature on the aluminum base plate
edge side (Point A).
Please consider the ventilation to keep the component tempera-
ture on the PCB (Point B) less than the temperature of Fig.6.3.
¡It is necessary to note the thermal fatigue life by power cycle.
Please reduce the temperature fluctuation range as much as pos-
sible when the up and down of the temperature are frequently
generated.
Contact us for more information on cooling methods.
20 40 60 80 1000
0
20
40
60
80
100
90
Temperature of point A [C]
Load factor [%]
-20
TB1
Point A
Measuring Point
Fig.6.2 Derating curve of point A
Temperature of point B [C]
Load factor [%]
0
50
100
-20-10 0 10203040506070
CN1
TB1
CN2
Point B (C55)
Measuring Point
Fig.6.3 Derating curve of point B
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