Cosel PAA50F User manual

Basic Characteristics Data
*1Refer to Instruction Manual.
*2The switching frequency of forward converter/one converter changes according to input voltage and load factor.
*The value of input current is at ACIN 100V and rated load.
input fuse
Circuit method
operation availability
250V 20A
250V 10A
250V 5A
250V 3A
250V 3A
250V 3A
250V 2A
Rated
Basic Characteristics Data
PAA300F
PAA600F
Model
PAA100F
PAA150F
PAA75F
PAA50F
4.4
Forward converter
Forward converter
Active filter 8.2
220
110
220
90 - 250
90 - 250
frequency
Switching
Forward converter
Forward converter
Active filter
Active filter
Active filter
current
[A]
2.0
1.4
1.4
1.2
0.8
110
140
140
90
90
Input
*1
*1
*1
*1
*1
Yes
Yes
Series/Parallel
Parallel
operation
YesYesFR-4SCR
SCR FR-4 Yes Yes
PCB/Pattern
current
Thermistor
Thermistor
Thermistor
protection
CEM-3
CEM-3
CEM-3
CEM-3
CEM-3
Material
Inrush
Series Single Double
sided
Yes
Yes
Yes
Yes
Yes
sided
Yes
Yes
Yes
Yes
Yes
operation
Forward converter one converter*2
Forward converter one converter*2
Combination of inverter
Combination of inverter
[kHz]
PAA-14
PAA
June29,2011

1 Terminal Block
2Function
3
Series Operation and Parallel Operation
PAA-15
4 Assembling and Installation Method
4.1
4.2
4.3
Instruction Manual
PAA-17
PAA-19
2.1
3.1
2.2
3.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
Input voltage range
Series operation
Installation method
Inrush current limiting
Parallel operation/Master-slave operation
Derating
Mounting screw
Overcurrent protection
Overvoltage protection
Output voltage adjustment range
Remote ON/OFF
Remote sensing
Isolation
Thermal protection
PAA-17
PAA-17
PAA-17
PAA-17
PAA-17
PAA-17
PAA-18
PAA-19
PAA-19
PAA-20
PAA-20
PAA-20
PAA-22
PAA-19
PAA-19
PAA-16
PAA
AC-DC Power Supplies Enclosed type
June29,2011

PAA-16
1 Terminal Block
lPAA75F
lPAA100F
+Output
-Output
Frame ground
AC(L)
AC(N)
LED
Output voltage adjustable potentiometer
+Remote sensing(+S)
-Remote sensing(-S)
Connector for Remote ON/OFF(Optional)
1: RC(+)
2: RC(-)
lPAA50F
lPAA150F
lPAA300F
lPAA600F
AC(L)
AC(N)
Frame ground
-Remote sensing(-S)
+Remote sensing(+S)
Current balance(CB)
Voltage balance(VB)
Remote ON/OFF(RG)
Remote ON/OFF(RC)
LED
+Output
-Output
Frame ground
Output voltage adjustable potentiometer
+Output
-Output
Frame ground
AC(L)
AC(N)
LED
Output voltage adjustable potentiometer
Connector for Remote ON/OFF(Optional)
1: RC(+)
2: RC(-)
+Output
-Output
Frame ground
AC(L)
AC(N)
LED
Output voltage adjustable potentiometer
Connector for Remote ON/OFF(Optional)
1: RC(+)
2: RC(-)
+Remote sensing(+S)
-Remote sensing(-S)
+Output
-Output
Frame ground
AC(L)
AC(N)
LED
1: RC(+)
2: RC(-)
Output voltage adjustable potentiometer
Connector for Remote ON/OFF(Optional)
AC(L)
AC(N)
Frame ground
Current balance(CB)
Voltage balance(VB)
-Remote sensing(-S)
Remote ON/OFF(RG)
Remote ON/OFF(RC)
-Output voltage monitoring(-M)
+Output voltage monitoring(+M)
+Remote sensing(+S)
LED
+Output
-Output
Frame ground
Output voltage adjustable potentiometer
PAA
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011

2.1 Input voltage range
2.2 Inrush current limiting
2.3 Overcurrent protection
2.4 Overvoltage protection
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The range is from AC85V to AC264V.
AC input voltage must have a range from AC85V to AC264V for
normal operation. If the wrong input is applied, the unit will not op-
erate properly and/or may be damaged.
Inrush current limiting is built-in.
If a switch on the input side is installed, it has to be the one han-
dling the input inrush current.
The thermistor is used for protection from inrush current. When
power is turned ON/OFF repeatedly within a short period of time,
it is necessary to have enough time for power supply to cool
down.
The thyristor technique is used for protection from inrush current.
When power is turned ON/OFF repeatedly within a short period of
time, it is necessary to have enough time between power ON and
OFF to operate resistance circuit for inrush current.
Overcurrent protection is built-in and comes into effect at over
105% of the rated current. Overcurrent protection prevents the
unit from short circuit and overcurrent condition of less than 20
sec. The unit automatically recovers when the fault condition is
cleared.
If the output voltage drops more than 50% of the rated voltage in
an overcurrent protection mode, the average current will also be
reduced by the intermittent operation.
The overvoltage protection circuit is built-in and comes into effect
at 115 - 140% of the rated voltage(except 3V output voltage type:
it operates at 4.0 - 5.25V). The AC input should be shut down if
overvoltage protection is in operation. The minimum interval of
AC recycling for recovery is 1 1/2 minutes to 3 1/2 minutes.
In cases that conform with safety standard, input voltage range is
AC100-AC240V(50/60Hz).
The recovery time varies depending on input voltage.
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PAA100F PAA150F
PAA300F PAA600F
PAA300F PAA600F
PAA-17
Remarks:
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PAA300F PAA600F
(Optional -R”)
PAA50F PAA75F PAA100F PAA150F
”
Please avoid applying the over-rated voltage to the output termi-
nal. Power supply may operate incorrectly or fail.In case of oper-
ating a motor etc. , please install an external diode on the output
terminal to protect the unit.
Adjustment of output voltage is possible by using potentiometer.
Output voltage is increased by turning potentiometer clockwise
and is decreased by turning potentiometer counterclockwise.
Remote ON/OFF circuit (RC, RG) is isolated from input, output
and FG.
”
”
”
Option ”-R” is available for remote ON/OFF.
2.5 Output voltage adjustment range
2.6 Remote ON/OFF
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Between RC and RG: Output voltage is ON at Low” level or short
circuit (0 - 0.8V).
Between RC and RG: Output voltage is OFF at High” level or
open circuit (2.7 - 5.0V).
Connection example:
When RC terminal is Low” level, fan out current is 3mA typ.
When Vcc is d, use 5V Vcc 12V. When remote ON/OFF
function is not used, please short between RC and RG terminals.
applie
Between RC(+) and RC(-)
Output
SW ON
(4.5 - 12.5V)
SW OFF
(0 - 0.5V)
ON
OFF
2 Function
PAA
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011

PAA-18
Model
PAA50F/75F 660
780PAA100F/150F
Ri [ ]
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PAA100F
PAA150F
(1)When not using remote sensing function
(2)When using remote sensing function
(1)When not using remote sensing function
(2)When using remote sensing function
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When external power source is in the range of 4.5 - 12.5V, current
limit resistance R is not required. However, when external power
source exceeds 12.5V, current limit resistance R must be connected.
To calculate the current limit resistance use following equation:
Vcc - (1.1+Ri 0.005)
0.005
where;
Vcc = External Power Source
Ri = The internal resistance(see table)
A wrong connection may damage the internal components of the unit.
Remote ON/OFF circuit (RC(+), RC(-)) is isolated from input, out-
put and FG.
When not using this function, confirm that terminals are shorted
between +S and +V, and between -S and -V with short pieces.
For PAA600F model, connect between +S and +M, and between
-S and -M.
When using this function, wiring should be done without short
pieces.
Device inside power supply might be damaged when poor con-
nection on load lines occurs, e.g. because of loose connector
screws.
Thick wire should be used for wiring between power supply and
load, and line voltage drop should be less than 0.3V.
When long sensing wire is required, use C1, C2 and C3.
Twisted-pair wire or shield wire should be used for sensing wire.
Maximum current per a terminal is as follows:
When remote sensing function is used, output voltage might be-
come unstable because of a impedance of wiring and load condi-
tion. And the power supply should be evaluated enough. Following
are examples to improve it.
-S sensing wire is removed and terminals between -M and -S
are shorted.
C1, C2, C3 and R1 are connected as above figure.
2.7 Remote sensing
When current exceeds more than the following list, two terminals
are required.
R[ ]=
C2
+
+
C1 +
C3
AC(N)
AC(L)
-S
-V
+V
+S
ACIN
R1
Load
Twist
AC(N)
AC(L)
-V -S
-V
+V
+V +S
C3
+
+C1
C2
+
ACIN
R1
Load
Twist
Terminal rated current
Model
PAA100F 20A
20A
60A
60A
PAA150F
PAA300F
PAA600F
PAA
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011

l
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PAA300F
PAA600F
(1)When not using remote sensing function
(2)When using remote sensing function
(1)When not using remote sensing function
(2)When using remote sensing function
For a receiving inspection, such as Hi-Pot test, gradually in-
crease(decrease)the voltage for 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.
If the unit is tested on the isolation between input & output and
output & FG, remote ON/OFF must be shorted to output.
2.8 Isolation
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PAA-19
(-)
(+) Load
+
+
+C3
C2
C1
+S-S
ACIN
+-
R1
Attention for connection
Take off the short-piece
Use twisted pair wire or shielded wire
Ubnormal current flow
Normal current flow
Sensing wire
Load wire
-+
+S
(-)
(+) Load
-
C3
+
C1 C2
ACIN
AC AC -S +M-M
R1
+
Attention for connection
Take off the short-piece
Use twisted pair wire or shielded wire
Ubnormal current flow
Normal current flow
Sensing wire
Load wire
2.9 Thermal protection
nThermal protection 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. Output voltage recovers after
applying input voltage. To prevent the unit from overheating, avoid
using the unit in a dusty, poorly ventilated environment.
lPAA300F PAA600F
3 Series Operation and
Parallel Operation
3.1 Series operation
3.2 Parallel operation/master-slave operation
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Series operation is available by connecting the outputs of two or
more power supplies, as shown below.
Output current in series connection should be lower than the low-
est rated current in each unit.
(a) (b)
I the rated current value
Parallel operation is not possible.
Even a slight difference in output voltage can affect the balance
between the values of I and I .
Please make sure that the value of I does not exceed the rated
current of a power supply.
Redundancy operation is available by wiring as shown below.
12
3
3
lPAA50F PAA75F PAA100F PAA150F
PAA
I2
I1I3
-
-
+
Power
supply
Power
supply
+
Load
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011

4.1 Installation method
4.2 Derating
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When two or more power supplies are used side by side, position
them with proper intervals to allow enough air ventilation. Ambient
temperature around each power supply should not exceed the
temperature range shown in derating curve.
Fan for forced cooling is built-in. Do not block the ventilation at
suction side (terminal block side) and its opposite side.
When unit operates at dusty place, attach air-filter to dust into the
unit. In this case, avoid poorly ventilated environments .
When internal fan stops, thermal protection circuit works which
stops the output. To keep reliability of the unit, periodic mainte-
nance of the fan is required.
The expected life time of fan is different by operating condition.
When unit mounted except below drawings, it is required to con-
sider ventilated environment by forced air cooling or tempera-
ture/load derating. For details, please consult our sales or engi-
neering departments.
The operative ambient temperature is different by with/without
case cover or mounting position. Please refer drawings as below.
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PAA50F PAA75F PAA100F PAA150F
PAA300F PAA600F
PAA-20
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PAA300F PAA600F
PAA300F
PAA600F
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Parallel redundancy operation is available by connecting the units
as shown below.
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 voltage in parallel operation is adjustable by using the po-
tentiometer of the ”master” unit.
””
When remote sensing is used in parallel operation, the sensing
wire must be connected ONLY to master.
(Output current at parallel operation)
= (the rated current per unit) (number of unit) 0.9
When the number of units in parallel operation increases, input
current increases at the same time.
Adequate wiring design for input circuitry is required, such as cir-
cuit pattern, wiring and current capacity for equipment.
In parallel operation, the maximum operative number of units is 5.
Select one power supply to be the master, and turn the potenti-
ometer of the other, slave power supplies, clockwise to the end.
Then use the potentiometer of the mater to adjust output voltage.
nIn parallel operation, output voltage increases like stairs due to a
delay of the rise time of output voltage at turn on.
4 Assembling and
Installation Method
PAA
+
-S +S
-S -S -S
CB
VB
+
-
-+
VB
CB
CB
VB
-
(+)
(-)
Load
+
-
+
-
+
-
Load
CB
CBCB
VB
VBVB
-S
-S
-S
-M
+S
+M
(+)
(-)
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011

PAA-21
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PAA50F
PAA75F
(1)Mounting method
(2)Derating curve
Note: In the hatched area, the specification of Ripple, Ripple
Noise is different from other area.
(1)Mounting method
(2)Derating curve
nSpecifications inside the hatched area, Ripple Ripple Noise is changed.
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PAA100F
PAA150F
(1)Mounting method
(2)Derating curve
Specifications inside the hatched area, Ripple Ripple Noise is
changed.
(1)Mounting method
(2)Derating curve
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nSpecifications inside the hatched area, Ripple Ripple Noise is
changed.
PAA
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011

PAA-22
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PAA300F
PAA600F
Derating curve
Specifications inside the hatched area, Ripple Ripple Noise is
changed.
Keep isolation distance between screw and internal components,
as below chart.
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Derating curve
Specifications inside the hatched area, Ripple Ripple Noise is
changed.
4.3 Mounting screw
Model
PAA50F PAA150F
PAA300F
PAA600F
6
6
88
8
8
PAA75F
PAA100F
max max
Unit : [mm]
Model
Unit type
PAA
Instruction Manual
AC-DC Power Supplies Enclosed type
June29,2011
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