LEB Series Instr Manual Datasheet by Cosel USA, Inc.

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CD‘EL \ Basic Characteristics Data
LEB-8
*1 The value of input current is at ACIN 100V and rated load at LEBOF-0524.
input fuse
250V 8A
250V 6.3A
250V 5A
Rated
Basic Characteristics Data
LEB225F
LEB150F
LEB100F
Model
90 - 500
Forward converter
Flyback converter
Active filter
3.0
120
80
90 - 500
90 - 500
frequency
Switching
Circuit method
Forward converter
Forward converter
Flyback converter
Active filter
Flyback converter
Active filter
[A]
2.0
1.4
current
Input
130
120
80
80
*1
operation availability
No
No
No
Series/Parallel
Parallel
operation
SCR CEM-3 Yes No
PCB/Pattern
Thermistor
Thermistor
current
protection
Inrush
CEM-3
CEM-3
Material
Double
sided
Yes
Yes
sided
Single
No
No
Series
operation
[kHz]
Basic Characteristics Data
AC-DC Power Supplies Open Frame/ Enclosed Type
2 Assembling and Installation Method LEB-11
2.1 Installation method LEB-11
2.2 Derating LEB-11
2.3 Mounting screw LEB-13
1.1 Input voltage range LEB-10
1.2 Inrush current limiting LEB-10
1.3 Overcurrent protection LEB-10
1.4 Peakcurrent protection LEB-10
1.5 Thermal protection LEB-10
1.6 Overvoltage protection LEB-10
1.7 Output voltage adjustment range LEB-11
1.8 Isolation LEB-11
5.1 Outline of option LEB-13
5.2 Others LEB-14
Instruction Manual
5 Option and others LEB-13
4 Peak loading LEB-13
1 Function LEB-10
3Ground LEB-13
LEB-9
CD‘EL \ —
1 Function
1.1 Input voltage range
¡The range is from AC85V to AC264V or DC120V to DC370V.
¡In cases that conform with safety standard, input voltage range is
AC100-AC240V(50/60Hz).
¡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.
1.2 Inrush current limiting
¡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.
¿LEB100F
-
LEB150F
¡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.
¿LEB225F
¡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.
1.3 Overcurrent protection
¡Overcurrent protection is built-in and comes into effect over 105%
of the rated current in V1 and at over 101% of the peak current in
V2.Overcurrent protection prevents the unit from short circuit and
overcurrent condition.
The unit automatically recovers when the fault condition is cleared.
¿Foldback characteristics (V1)
¡The power supply witch has a current foldback characteristics may
not start up when connected to nonlinear load such as a lamp,
motor constant current load. See the characteristics below.
Note: In case of nonlinear load, the output is locked out at A point.
: Load characteristics of power supply.
: Characteristics of load (lamp, motor, constant current load, etc.).
100
V
A
Load factor [%]
Output Voltage
¿Hiccup current characteristics (V2)
¡When the output voltage drops more than 50% of the rated output
voltage value at overcurrent, the average output current is re-
duced by hiccup operation of power supply.
1.4 Peakcurrent protection (V2)
¿LEB100F
-
LEB150F
¡Peakcurrent protection is built-in (refer to Instruction Manual 4. for
Peak loading).
If this function comes into effect, the output V2 is shut down (but
output V1 is not shut down).
The minimum interval of AC recycling for recovery is 2 to 3 min-
utes ().
 The recovery time varies depending on input voltage and load
condition.
1.5 Thermal protection (V2)
¿LEB225F
¡Thermal protection is built-in. If the power supply is operated un-
der the following conditions, this function comes into effect and the
output V2 is shut down (but output V1 is not shut down).
1Over rated temperature
2Poor ventilation
3Over peak load based on Instruction Manual 4. for Peak loading
¡If this function is in operation, turn off power, eliminate all possible
causes of overheating, and drop the temperature to normal level.
Output voltage recovers after applying input voltage.
1.6 Overvoltage protection
¡Output V1
Overvoltage protection circuit, clamping the output voltage by
zener diode, is built-in and comes into effect at over 115% of the
rated voltage. The unit in an overvoltage protection mode cannot
be recovered by a user; it must be repaired at the factory.
Overvoltage protection (diode) also comes into effect if the voltage
is externally applied to the output side.
Avoid applying voltage to the output side.
¡Output V2
Overvoltage protection is built-in and comes into effect at 115-
140% of the rated voltage.
The AC input should be shut down if overvoltage protection is in
operation.
The minimum interval of AC recycling for recovery is 2 to 3 min-
utes ().
 The recovery time varies depending on input voltage.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LEB-10
D 1(Fmoun : B) m mpe ure 1 D m unlmg 1 a) ) m 1 A) on r(0.5m3/min) 20 30 40 so so 70 em mpe ure 1 «*(D E)1(F)mcun / "‘(B) (C) m / m) mpe ure 1
Remarks:
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.
Note:
Overvoltage protection is built-in each output.
If overvoltage protection in V1 or V2 comes into effect, both of out-
put V1 and V2 are not shut down.
Each overvoltage protection is independent of each other.
1.7 Output voltage adjustment range
¡Adjustment of output voltage is possible by using potentiometer
(only available V1 output).
¡Output voltage is increased by turning potentiometer clockwise
and is decreased by turning potentiometer counterclockwise.
1.8 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.
If the unit is tested on the isolation between input & output and
output & FG, remote ON/OFF (option) must be shorted to outputs.
d2=5mm min
CN1
d2
d2
d2
d2
2.2 Derating
¡
In the hatched area the specification of Ripple, Ripple Noise is dif-
ferent from other area.
¡
In case2, ventilation must keep the temperature of C119 below
85C. See External View for the location of C119.
¡
The operative ambient temperature is different by with/without
case cover or mounting position.
Please refer to drawings as below.
 
Please be careful of electric shock or earth leakage in case of
temperature measurement, because C119 is live potential.
¿LEB100F
1Convection
2
Forced air (0.5m
3
/min)
Load factor [%]
Ambient temperature [C]
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
1(D), (E), (F) mounting
1(B), (C) mounting
1(A) mounting
2
¿LEB100F-£-SN (requirement: Min. AC90V)
1Convection
2Forced air (0.5m3/min)
Load factor [%]
Ambient temperature [C]
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
1(D), (E) mounting
1(B), (C) mounting
1(A) mounting
2
¿LEB150F
Load factor [%]
Ambient temperature [C]
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
1(D), (E), (F) mounting
1(B), (C) mounting
1(A) mounting
2
1Convection
2Forced air (0.5m3/min)
2.1 Installation method
¡
When two or more power supplies are used side by side, position
them with proper intervals to allow enough air ventilation. Ambi-
ent 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 and d2
for to insulate between lead of component and metal chassis. If ti
is less than d1 and d2, insert the insulation sheet between power
supply and metal chassis.
d1=8mm min
CN1
d1
d2
2 Assembling and
Installation Method
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LEB-11
CD‘EL \ — MD E) m mg "‘(5) ) m , A) onvecuon reed air (0.5m3/mln m 20 an 40 so so 70 Am enl mpe lure 'c] MD E),(F moun MB) cm ’ (A) 20 30 40 50 so 70 Ienl mpe ure’c] 'v‘Conveclxon 'z‘Forced air (0.5mm m 20 an 40 so so 70 Am enl mpe lure 'c] CN1 PN‘ CNI (D) E (E) \CN1 50 EU 70 me ['C] CN1
¿LEB150F-O-SN (requirement: Min. AC90V)
Load factor [%]
Ambient temperature [C]
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
1Convection
1(D), (E) mounting
1(B), (C) mounting
1(A) mounting
2Forced air (0.5m3/min)
2
¿LEB225F
Load factor [%]
Ambient temperature [C]
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
1(D), (E), (F) mounting
1(B), (C) mounting
1
(A) mounting
2
1Convection
2Forced air (0.5m3/min)
¿LEB225F-O-SN (requirement: Min. AC90V)
Load factor [%]
Ambient temperature [C]
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
1Convection
1(D), (E) mounting
1(B), (C) mounting
1(A) mounting
2Forced air (0.5m3/min)
2
¡
Option ”-SN” is easy to be full of heat air inside power supply. The
ventilation design with derating or forced air is recommended.
¡
When unit mounted except below drawings, it is required to con-
sider ventilated environment by forced air cooling for temperature
/ load derating. For details, please consult our sales or engineer-
ing departments.
¡
(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 consult
our sales or engineering department.
Standard
Position
CN1
(A) (B) (C)
CN1
CN1
(D) (E) (F)
CN1
CN1
CN1
¡Definition of load factor
A1=Io1/I1×100 A2=Io2/I2×100
A3= (V1×Io1+V2×Io2) / (TOTAL OUTPUT WATTAGE) ×100
where:
V1:VOLTAGE OF OUTPUT V1, Io1:CURRENT OF OUTPUT V1,
I1: RATED CURRENT OF OUTPUT V1
V2:VOLTAGE OF OUTPUT V2, Io2:CURRENT OF OUTPUT V2,
I2:RATED CURRENT OF OUTPUT V2
NOTE:
Refer to SPECIFICATION for TOTAL OUTPUT WATTAGE and
OTHERS
Load factor[%]=Maximum value in A1, A2, A3
[ex.1] The method which seeks for the upper limit of ambient tem-
perature in LEB100F-0524 as following conditions,
Load condition:V1=5V, Io1=0.2A V2=24V, Io2=2A
Installation: standard potion and conventional cooling
Load factor [%]
Ambient temperature [C]
LEB100F derating curve
(standard potion and convention)
20
0
-10 0 10 20 30 40 50 60 70
40
60
80
100
Calculating A1, A2, A3
A1=Io1/I1×100=0.2/5×100=4
A2=Io2/I2×100 = 2/4×100 =50
A3=(V1×Io1+V2×Io2)/(TOTAL OUTPUT WATTAGE)×100
=(5×0.2+24×2)/100×100=49
Accordingly load factor is 50[%] which is maximum value in A1, A2,
A3 and the upper limit of ambient temperature is 60C by derating
curve.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LEB-12
CO‘EL \ — {)Eu Output current [A] Chassws 7 \phflalz tn
¡
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.
However when applying the safety agency, connect the input FG
terminal of CN1 to safety ground of the unit.
CN1
Mounting
hole
FG
4 Peak loading
¡Peak load (V2) is possible to draw as below.
Output current [A]
t1 t[sec]
t2
Ip: peak current
t1 [ 10 [sec], Iave = [rated current, [ 0.35
Iave : average current
I0
Ip t1 + I0 t2
t1 + t2
t1
t1 + t2
0
5 Option and others
5.1 Outline of option
¿-G
¡
Option ”-G” means leakage current is smaller than standard model
by reducing the value of earth capacitor at input filter circuit.
Leakage current 0.1mA max
Conducted noise Not available
[ex.2] The method which seeks for the upper limit of V2 output cur-
rent as Io2 in LEB100F-0524 as following conditions,
Load condition:V1=5V,Io1=4A V2=24V
Ambient temperature: 50C
Installation: standard potion and conventional cooling
Load factor is 100[%] at ambient temperature=50C by
derating curve, In this case the value of each A1, A2, A3 is
required less than 100[%].
100
] A1= Io1/I1×100 100 ] A2=Io2/I2×100
100
]
A3=(V1×Io1+V2×Io2)/(TOTAL OUTPUT WATTAGE)×100
100
] 4/5×100 100 ] Io2/4×100
100
] (5×4+24×Io2)/100×100
according Io2 [ 3.3A and as a result the upper limit of V2 out-
put current as I2 is less than 3.3A.
2.3 Mounting screw
¡
The mounting screw should be M3. The hatched area shows the
allowance of metal parts for mounting.
¡
Please be carefull with that metal parts do not touch mounted
parts at front side, where major components are mounted, when a
power supply is installed with them.
¡
Keep isolation distance between screw and internal components
in case of option ”-S”, ”-SN” as below chart.
9mm
1FG
2
CN1
9mm
9mm 9mm
9mm
9mm 9mm
9mm
9mm
9mm
1 Recommendation to electrically connect FG to metal chassis
for reducing noise.
2 LEB150F and LEB225F only
 Refer to External view for location
Unit
Chassis
Mounting screw
8mm max
3 Ground
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LEB-13
CD‘EL \ — \ Connector for remme \ON/OFFWZ) (opuon)
¿-R
¡
Option ”-R” means output remote ON/OFF (V2) is made possible.
 Remote ON/OFF circuit (RC(+), RC(-)) is isolated from input
and FG but not isolated from output V1.
Please consult our sales or engineering departments in other application.
¡
A wrong connection may damage the internal components of the
unit.
Between RC (+) and RC (-) Output (V2)
SW ON ( 0 - 0.5V) ON
SW OFF (at shipping) (4.5 - 5.5V) OFF
V1
RC(+)
CN3
RC(-)
SW
or or
10mA max
Relay Transistor
1
2
Connector for remote
ON/OFF(V2) (option)
Connecting example
¿-S -SN
¡Option ”-S” means chassis is attached to standard model.
¡
Option ”-SN” means chassis and cover is attached to standard
model. Refer to 2.2 Derating for derating curve.
¿-T
¡
Option ”-T” means input and output interface are changed ”Con-
nector” to ”Terminal block”.
G2
FG
AC(N)
AC (L)
V2
G1
V1
¿-Z O
¡
Option ”-Z O ” means ZT3 series in COSEL is mounted on stan-
dard model.
Refer to external view for output terminal.
Refer to COSEL catalog about ZT specification in detail.
It is possible to select ZT as below chart.
Optional symbol -Z31 -Z32 -Z33 -Z34 -Z35
Mounted Power supply
ZTS3
2405
ZTS3
2412
ZTS3
2415
ZTW3
2412
ZTW3
2415
Notice V2=24[V], 30[V], 36[V] model
Optional symbol -Z21 -Z22 -Z23 -Z24 -Z25
Mounted Power supply
ZTS3
1205
ZTS3
1212
ZTS3
1215
ZTW3
1212
ZTW3
1215
Notice V2=12[V] model
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.
AC-DC Power Supplies Open Frame/ Enclosed Type
Instruction Manual
LEB-14

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