LKP5661-5D0T [BEL]
AC-DC Power Factor Correction Module, 2 Output, 278W, Hybrid, HEAT SINK, METAL, CASE K02, MODULE;
| 型号： | LKP5661-5D0T |
| 厂家： | 
BEL FUSE INC. |
| 描述： | AC-DC Power Factor Correction Module, 2 Output, 278W, Hybrid, HEAT SINK, METAL, CASE K02, MODULE 电源电路 |
| 文件： | 总23页 (文件大小：1149K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Rugged Environment
AC-DC Converters >100Watt
KP Series
250 Watt AC-DC Converters with PFC
KP Series
Input to output isolation
Double output
• Power factor >0.95, harmonics <IEC/EN61000-3-2
• Output power up to 280 Watt
• Input over- and undervoltage lock-out
• Efficient input filter and built-in surge and transient
suppression circuitry
• 4000 Vrms input to output electric strength test
• Fully isolated outputs
• Outputs open- and short-circuit proof
Safety according to IEC/EN 60950
LGA
C
111
4.4"
3 U
80
168
6.6"
3.2"
Summary
16 TE
The KP series is an extension of the K series ofAC-DC con-
verters with an increased output power level of up to 280 W
depending on the operating ambient temperature require-
ments. The KP converters are optimized for use in
230 V AC mains applications and feature high efficiency,
high reliability, low output voltage noise and excellent dy-
namic response to load/line changes.
Full input to output, input to case, output to case and output
to output isolation is provided. The modules are designed
and built according to the international safety standards
IEC/EN 60950.
The case design allows operation up to an operating ambi-
ent temperatur of 71°C with reduced output power. De-
pending on the ambient temperature requirements, how-
ever, the output power can be up to 280 W.
The converter inputs are protected against surges and tran-
sients occuring at the source lines. An input over- and
undervoltage lock-out curcuitry disables the outputs if the
input voltage is outside the specified range. The LKP types
include an inrush current limitation preventing circuit break-
ers and fuses from being damaged at switch-on.
An internal temperature sensor generates an inhibit signal
which disables the outputs if the case temperature TC ex-
ceeds the specified limit. The outputs are automatically re-
enabled when the temperature drops below the limit.
The outputs are open- and short-circuit proof and are pro-
tected against overvoltages by means of a built-in suppres-
sor diode. The outputs can be inhibited by a logic signal
applied to the connector pin 18 (i). If the inhibit function is
not used pin 18 must be connected with pin 14 to enable
the outputs (fail safe).
Various options are available to adapt the converters to in-
dividual applications. Especially for battery charger applica-
tions an external temperature sensor has been designed to
allow for temperature compensated battery charging.
LED indicators display the status of the converter and allow
visual monitoring of the system at any time.
The modules may either be plugged into 19" rack systems
according to DIN 41494 or be chassis mounted.
Table of Contents
Page
Page
Summary.......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Auxiliary Functions ......................................................... 10
Electromagnetic Compatibility (EMC) ............................ 14
Immunity to Environmental Conditions........................... 15
Mechanical Data ............................................................ 16
Safety and Installation Instructions ................................ 17
Description of Options.................................................... 20
Accessories .................................................................... 23
Edition 4/4.99
1/23
MELCHER
The Power Partners.
KP Series
AC-DC Converters >100Watt
Rugged Environment
Type Survey and Key Data
Non standard input/output configurations or special custom adaptations are available on request. See also: Commercial
Information: Inquiry Form for Customized Power Supply.
Table 1: Type survey
Output
voltage
Uo [V DC]
Output current ,input voltage and efficiency 1
Ui min...Ui max
187...255 V AC [%]
Opt.
TA = 50°C
Io nom [A]
Ui min...Ui max
187...255 V AC [%] Io nom [A]
hmin TA = 60°C
hmin TA = 70°C
Ui min...Ui max
187...255 V AC [%]
hmin
Io nom [A]
24 2
25.25...28.25 2
24, 24
11.6
10
LKP 5661-5R
LKP 5741-5R 4
LKP 5661-5R
LKP 5661-5R
LKP 5741-5R 4
85
85
85
85
85
10.4
9
LKP 5660-6R
LKP 5740-6R 4
LKP 5660-6R
LKP 5660-6R
LKP 5740-6R 4
86
86
86
86
86
9.6
LKP 5662-7R
LKP 5742-7R 4
LKP 5662-7R
LKP 5662-7R
LKP 5742-7R 4
85
85
85
85
85
E
D
8
4.8, 4.8
4.8
P 5
T
5.8, 5.8
5.8
5.2, 5.2
5.2
B1
48 3
50.5...56.5 3
5
4.5
4
1 Efficiency at Ui nom and Io nom
2 Parallel connection of Uo1 and Uo2
3 Series connection of Uo1 and Uo2
.
.
.
4 Designed for battery charging. Needs external temperature sensor.
5 Option P not available for LKP 5741-5R, LKP 5740-6R, LKP 5742-7R.
Type Key
Type Key
L KP 5 6 60 -6 E R P D T B1
Input voltage range Ui:
187…255 V AC, 47...63 Hz ............................. L
Series ............................................................................ KP
Number of outputs (5 for double outputs) ........................ 5
Nominal voltage output 1
Rectifier version .............................................. 6
Battery charger version ................................... 7
Other specifications.................................... 0...9
Symmetrical double output units:
Nominal voltage output 1/output 2, Uo1/2 nom
1
24 V/24 V (48 V series connection)............... 60
25.25...28.25 V (50.5...56.5 V ser. conn.) ..... 40
1
other symmetrical voltages .................... 80...99
Operational ambient temperature range TA:
–25…50°C ..................................................... -5
–25…60°C ..................................................... -6
–25…71°C ..................................................... -7
Customer specific..................................... -0...-4
Auxiliary functions and options:
2
Output voltage control input ........................... R
Inrush current limitation ...................................E
Potentiometer (output voltage adjustment) .....P
2
Save data signal (D0...DD, to be specified) ... D
Current sharing ............................................... T
Cooling plate .................................................B1
1 External wiring of main and second output depending upon the desired output configuration (see: R-Function for different output con-
figurations).
2 Feature R excludes option P and vice versa. Option P not available for LKP 5740-6R.
Example:
LKP 5740-6RD3: Power factor corrected AC-DC converter, input voltage range 187...255 V AC, double out-
put, each providing 25.25...28.25 V/4.5 A, equipped with feature R, undervoltage monitoring option, opera-
tional ambient temperature range –25...60°C.
Edition 4/4.99
MELCHER
2/23
The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
Functional Description
output filter. The control logic senses the main output volt-
age Uo1 and generates, with respect to the maximum ad-
missible output currents, the control signal for the primary
switching transistor.
The input voltage is fed via an input fuse, an input filter, a
rectifier and an inrush current limiter to a single transistor
boost converter. This converter provides a sinusoidal in-
put current (IEC/EN 61000-3-2, class D equipment) and
sources a capacitor with a voltage of 360-370 VDC. This
capacitor sources a single transistor forward converter.
The second output is controlled by the main output but has
independent current limiting. If the main output is driven into
current limitation, the second output voltage will fall as well
and vice versa.
Each output is powered by a separate secondary winding
on the main transformer. The resultant voltages are recti-
fied and their ripples smoothed by a power choke and an
P
03002
16
R
26
28
18 i
Y
N~
D
20
22
T
1
3
Y
Y
Ci
+
12
Vo1+
4
14
4
6
Vo1–
Y
2
Vo2+
30
32
P~
8
10
Vo2–
Y
Y
24
–
+
1 Transient suppressor (VDR).
2 Inrush current limiter (NTC or option E).
3 Input fuse.
4 Hold-up capacitor.
Fig. 1
Block diagram of symmetrical double output converters LKP 5000
Edition 4/4.99
MELCHER
3/23
The Power Partners.
KP Series
AC-DC Converters >100Watt
Rugged Environment
Electrical Input Data
General Conditions
– TA = 25°C, unless TC is specified.
– Pin 18 connected to pin 14, Uo adjusted to Uo nom (option P); R input not connected.
Table 2: Input data
Input
LKP
Characteristics
Conditions
min
187
typ
max
255
Unit
Ui
Operating input voltage Io = 0…Io nom
TC min…TC max
V AC 3
Ui nom Nominal input voltage
230
1.25
7
1
Ii
Input current
Ui nom, Io nom
Arms
W
Pi o
Pi inh
Ri
No-load input power
Idle input power
Input resistance
Ui min…Ui max
unit inhibited
TC = 25°C
10
3
2
480
mΩ
µF
RNTC NTC resistance 2
Ci Input capacitance
3200 4000
52.8
66
B
79.2
Ui RFI Conducted input RFI
Radiated input RFI
EN 55022
Ui nom, Io nom
B
Ui abs Input voltage limits
(without damage)
–400
–400
400
400
V DC
VP
1 With double output modules, both outputs loaded with Io nom
.
2 Initial switch-on cycle. Subsequent switch-on/off cycles increase the inrush current peak value.
3 AC frequency range 47...63 Hz.
Input Fuse
Inrush Current Limitation
A fuse mounted inside the converter protects the module
against severe defects.
The modules of the versions -5, -6, -7 incorporate an NTC
resistor in the input circuitry which - at initial turn on - re-
duces the peak inrush current value by a factor of 5...10 to
protect connectors and switching devices from damage.
Subsequent switch-on cycles within short periods will
cause an increase of the peak inrush current value due to
the warming-up of the NTC resistor. See also: E option.
Table 3: Fuse Specification
Module
Fuse type
Fuse rating
LKP 5000 1 slow-blow
SP T
4 A, 250 V
1 Fuse size 5 × 20 mm
Inrush Current Peak Value
Input Under-/Overvoltage Lock-out
The inrush current peak value (initial switch-on cycle) can
be determined by following calculation:
If the input voltage remains below approx. 110 V AC or ex-
ceeds approx. 280 V AC an internally generated inhibit sig-
nal disables the output(s). When checking this function the
absolute maximum input voltage rating Ui abs should be
considered! Between Ui min and the undervoltage lock-out
level the output voltage may be below the value defined in
table: Output data (see: Technical Information: Measuring
and Testing).
Ui rms • √2
Iinr p = ––––––––––––––––
(Rs ext + Ri + RNTC
)
04001
Rs ext Iinr p
Ri
RNTC
Ci
Ui rms
Input Transient Protection
A VDR together with the input fuse and a symmetrical input
filter form an effective protection against high input tran-
sient voltages.
Fig. 2
Equivalent circuit diagram for input impedance
Edition 4/4.99
4/23
MELCHER
The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
Input Inrush Current Characteristic
Static Input current Characteristic
I
inr [A]
l
i [Arms
]
04056
04054
2
100
1.5
1
0.5
0
Ûi = 360 V
Ûi = 264 V
50
175
200
225
250
275
Ui [V AC]
Fig. 5
Input current versus input voltage at Io nom
0
0.1
0.5
1.0 t [ms]
Fig. 3
Harmonic Currents
Theoretical input inrush current versus time at
The harmonic distortion is well below the limits specified in
IEC/EN 61000-3-2, class D.
Ûi = 187 V • √2 (264 V) and 255 V • √2 (360 V), Rext = 0
Power Factor, Harmonics
Ii [mA/W]
Power factor correction is achieved by controlling the input
current waveform synchronously with the input voltage
waveform. The power factor control is active under all oper-
ating conditions.
0.8
04055
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Power Factor
1
04057
0.9
Ui = 255 V AC
Ui = 187 V AC
0.8
Harm.
0
0.7
0.6
3
5
7
9
11
13
Fig. 6
Harmonic currents at the input, IEC/EN 61000-3-2, class D.
Ui = Ui nom, Io = Io nom
0.2
0.4
0.6
0.8
1
Io/Io nom
0
.
Fig. 4
Power factor versus output power at Ui 255 V AC and
187 V AC.
Edition 4/4.99
5/23
MELCHER
The Power Partners.
KP Series
AC-DC Converters >100Watt
Rugged Environment
Electrical Output Data
General Conditions
– TA = 25°C, unless TC is specified.
– Pin 18 (i) connected to pin 14 (S–/Vo1–), Uo adjusted to Uo nom (option P), R input not connected.
Table 4a: Output data double output modules
Output
LKP 5660-6
LKP 5740-6
(Outputs connected in Series)
48 V (2 × 24 V)
51.36 V (2 × 25.68 V)
Characteristics
Conditions
min
typ
max
min
typ
max
56.5
Unit
V
Uo
Output voltage 2
Ui nom, Io nom
48.0
51.36
Uo max Maximum output
voltage for battery
charging
Uo P
Overvoltage protection
82
82
Io nom Output current 1
Ui min...Ui max
TC min...TC max
5.2
4.5
A
IoL
uo
Output current limit 4
Ui min...Ui max
5.3
4.6
7
Output Low frequency Ui nom, Io nom
15
30
15
30
mVpp
voltage
noise 3
IEC/EN 61204
BW = 20 MHz
Switching freq.
Total
180
180
DUo U Static line regulation
Ui min...Ui nom
Ui nom...Ui max
Io nom
±20
±20
mV
DUo I Static load regulation
Ui nom, Io =
(0.1...1) Io nom
100
100
5
uo d
Dynamic
load
regulation
Voltage
deviation
Ui nom
I
IEC/EN 61204
±200
0.3
±200
0.3
o nom ↔1/
2
Io nom
5
td
Recovery
time
ms
aUo
Temperature coefficient TC min...TC max
of output voltage 6
0...Io nom
–2.6
–2.6
mV/K
1 If the output voltages are increased above Uo nom through R-input control, option P setting, remote sensing or option T, the output
currents should be reduced accordingly so that Po nom is not exceeded.
2 Series connection for Uo nom = 48 V or 51.35 V, see: R-Function for different output configurations. Factory adjusted with open
R-input.
3 Shortest possible wiring for series connection at the connector.
4 See: Typical Output Voltage Regulation of Single or Double Output Modules with Outputs 1 and 2 Connected in Series.
5 See: Typical dynamic load regulation of Uo1 and Uo2
.
6 Negative temperature coefficient (0...–3 mV/cell and K) available on request.
7 Measured according to IEC/EN 61204 sub clause 3.10 with a probe acc. to annex A of the same standards. (See: Technical Informa-
tion: Measuring and Testing.)
Edition 4/4.99
MELCHER
6/23
The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
Table 4b: Output data double output modules
Output
LKP 5660-6
24 V/24 V
LKP 5740-6
25.68 V/25.68 V
(Outputs independently loaded) 1
Characteristics
Conditions
Output 1
Output 2
Output 1
Output 2
min typ max min typ max min typ max min typ max Unit
Uo
Output voltage 2
Ui nom, Io nom
23.86
24.14 23.64
24.36 25.53
25.83 25.29
28.25
26.06
28.25
V
Uo max Maximum output
voltage for battery
charging
Uo P
Overvoltage protection
41
41
41
41
Io nom Output current 3
Ui min...Ui max
TC min...TC max
5.2
5.2
4.5
4.5
A
IoL
uo
Output current limit 4
Ui min...Ui max
5.3
5.3
4.6
4.6
8
Output Low frequency Ui nom, Io nom
10
20
10
20
40
10
20
10
20
40
mV
pp
voltage
noise
IEC/EN 61204
BW = 20 MHz
Switching freq.
Total
150
150
DUo U Static line regulation
Ui min...Ui nom
Ui nom...Ui max
Io nom
±10
±10
±10
±10 mV
5
5
DUo I Static load regulation
Ui nom, Io =
(0.1...1) Io nom
100
100
5
6
uo d
Dynamic
load
regulation
Voltage
deviation
Ui nom
±150
0.3
±150
0.3
Io nom ↔ 1/
2
Io nom
IEC/EN 61204
6
td
Recovery
time
ms
aUo
Temperature coefficient TC min...TC max
of output voltage 7
0...Io nom
–2.6
–2.6
mV/K
1 Depending upon the desired output configuration the wiring should be made as shown in: R-Function for different output configura-
tions.
2 Same conditions for both outputs. Factory adjustment with open R-input.
3 If the output voltages are increased above Uo nom via R-input control, option P setting, remote sensing or option T, the output currents
should be reduced accordingly so that Po nom is not exceeded.
4 See: Typical Output Voltage Regulation of Single or Double Output Modules with Outputs 1 and 2 Connected in Series.
5 Condition for specified output. Other output loaded with constant current Io = Io nom. See fig.: Output voltage regulation of double output
units.
6 See: Typical dynamic load regulation of Uo1 and Uo2
.
7 Negative temperature coefficient (0...–3 mV/cell and K) available on request.
8
Measured according to IEC/EN 61204 sub clause 3.10 with a probe acc. to annex A of the same standards. (see: Technical Informa-
tion: Measuring and Testing)
Edition 4/4.99
MELCHER
7/23
The Power Partners.
KP Series
AC-DC Converters >100Watt
Rugged Environment
Thermal Considerations
Parallel or Series Connection of Units
If a converter is located in free, quasi-stationary air (con-
vection cooling) at the indicated maximum ambient tem-
perature TA max (see: table Temperature specifications) and
is operated at its nominal input voltage and output power,
the temperature measured at the Measuring point of case
temperature TC (see: Mechanical Data) will approach the
indicated value TC max after the warm-up phase. However,
the relationship between TA and TC depends heavily on the
conditions of operation and integration into a system. The
thermal conditions are influenced by input voltage, output
current, airflow and temperature of surrounding compo-
Units with equal nominal output voltage can be connected
in parallel without any precautions using option T.
With option T (current sharing), all units share the current
approximately equally.
Main and second outputs can be connected in series with
any other (similar) output.
Note:
– Parallel connection of double output units should always
include both, main and second output to maintain good
regulation of both outputs.
nents and surfaces. TA max is therefore, contrary to TC max
an indicative value only.
,
– Not more than 3 units should be connected in parallel.
– Series connection of second outputs without involving
their main outputs should be avoided as regulation may
be poor.
Caution: The installer must ensure that under all operat-
ing conditions TC remains within the limits stated in the
table: Temperature specifications.
– The maximum output current is limited by the output with
the lowest current limitation if several outputs are con-
nected in series.
Notes: Sufficient forced cooling or an additional heat sink
allows TA to be higher than 60°C (e.g. 70°C) if TC max is not
exceeded.
Efficiency versus Load
Io/Io nom
Efficiency
90
convection cooling forced cooling
05156
1.00
0.9
0.8
88
-7
-5 -6
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
86
84
82
80
TC max
-5 -6 -7
Ui = 187 V AC
78
Ui = 230 V AC
TA [°C]
76
TA min
50
60
70
80
90
100
74
Fig. 7
Output current derating versus temperature for -5, -6 and
-7 units.
72
70
1
2
3
4
0
Io/Io nom
Thermal Protection
Fig. 8
A temperature sensor generates an internal inhibit signal
which disables the outputs if the case temperature exceeds
TC max. The outputs are automatically re-enabled if the tem-
perature drops below this limit.
Efficiency versus load at Ui 230 V AC and 187 V AC
Switching Frequency versus Load
Frequency [kHz]
80
Output Protection
05157
Each output is protected against overvoltage which could
occur due to a failure of the control circuit by means of a
voltage suppressor diode which, under worst case condi-
tions, may become a short circuit. The suppressor diodes
are not designed to withstand externally applied over-
voltages. Overload at any of the two outputs will cause a
shut-down of both outputs. A red LED indicates the over-
load condition.
70
60
50
40
30
20
10
0
0.2
0.4
0.6
0.8
1
1.2
load [Io/Io nom
0
]
Fig. 9
Switching frequency versus load. (The boost converter at
the input stage has a fixed frequency of 100 kHz)
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AC-DC Converters >100Watt
KP Series
Output Voltage Regulation
Dynamic Load Regulation
05005
Output 1 is under normal conditions regulated to Uo1 nom
independent of the output currents.
,
Uo1
Uo1d
Ur
Ur
Uo2 is dependent upon the load distribution. If both outputs
are loaded with more than 10% of Io nom, the deviation of
Uo2 remains within ±5% of the value of Uo1. The following
figure shows the regulation with varying load distribution. If
Io1 = Io2 or the two outputs are connected in series, the de-
viation of Uo2 remains within ±1% of the value of Uo1 pro-
vided that a total load of more than 10% of Io nom is applied.
Uo1d
td
td
t
t
Uo2
Uo2d
If both outputs of a single LKP 5000 module are connected
in parallel the paralleled output is fully regulated. No pre-
cautions are necessary in using the R-input and the test
sockets.
Io1/Io1 nom
1
Io2/Io2 nom
0.5
[V] Uo2
<10 µs
<10 µs
05004
27
0
Io1 = 100%
t
Io1
Io1
=
=
50%
10%
26
25
24
23
22
21
Fig. 12
Typical dynamic load regulation of Uo1 and Uo2.
Hold-up Time versus Output Power
time [ms]
100
05159
90
0.4
0
0.2
0.6
0.8
1
Io2/Io2 nom
80
Fig. 10
LK 5660: DUo2 (typ.) versus Io2 with different Io1
70
60
50
40
30
20
10
0
Output Voltage Regulation Connected in Series
Uo
Uo nom
05158
0.98
0.5
0
0.2
0.4
0.6
0.8
1
Io /Io nom
Fig. 13
Hold-up time th versus output power
Io
IoL
Io
Io nom
0
0.5
1.0
Fig. 11
Uo versus Io
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KP Series
AC-DC Converters >100Watt
Rugged Environment
Auxiliary Functions
i Inhibit for Remote On and Off
06001
Uo/Uo nom
Note: With open i input: Output is disabled (Uo = off).
1
The outputs of the module may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied between
the inhibit input i and the negative pin of output 1 (Vo1–). In
systems with several units, this feature can be used, for ex-
ample, to control the activation sequence of the converters.
If the inhibit function is not required, connect the inhibit pin
18 to pin 14 to enable the outputs (active low logic, fail
safe). For output response refer to: Hold-up Time and Out-
put Response.
0.1
0
t
tf
tr
Inhibit
1
t
0
Fig. 16
06031
Output response as a function of inhibit control
Vo+
i
Vi+
Iinh
Battery Charging/Temperature Sensor
Uinh
The LKP 5740-6R, LKP 5741-5R, LKP 5742-7R are in-
tended for lead acid battery charger applications. For an
optimum battery charging and life expectancy of the battery
an external temperature sensor may be connected to the
R-input. The sensor is mounted as close as possible to the
battery pole and adjusts the output voltage of the LKP unit
according to the temperature of the battery (which is related
to the load of the battery and the ambient temperature).
Vo–
Vi–
Fig. 14
Definition of Uinh and Iinh
.
Depending on the cell voltage and the temperature coeffi-
cient of the battery, different sensor types are available.
Iinh [mA]
Uinh = 2.4 V
Uinh = 0.8 V
2.0
1.6
1.2
For more information please ask Melcher.
Cell voltage [V]
2.40
06123
Uo max
0.8
2.35
Uo = on
Uo = off
0.4
2.30
0
–0.4
–0.8
Uz = 2.27 V, –3.5 mV/K
2.25
Uinh [V]
–50
–30
–10
0
10
30
50
2.20
Uz = 2.23 V, –3.5 mV/K
Fig. 15
Typical inhibit current Iinh versus inhibit voltage Uinh
Uo nom
2.15
[°C]
10 15 20 25 30 35 40 45 50
2.10
Table 5: Inhibit characteristics
0
5
Characteristic
Conditions min typ max Unit
Fig. 17
Uinh Inhibit Uo = on Ui min…Ui max –50
0.8
50
V
Dependance of output voltage vs. temperature for defined
temperature coefficient.
voltage
Uo = off
2.4
Iinh Inhibit current
Uinh = 0
–400 µA
tr
tf
Rise time
30
depending on Io
ms
Fall time
Edition 4/4.99
10/23
MELCHER
The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
Programmable Output Voltage (R-Function)
As a standard feature, the modules offer an adjustable out-
put voltage, identified by letter R in the type designation.
The control input R (pin 16) accepts either a control voltage
Uext or a resistor Rext to adjust the desired output voltage.
When not connected, the control input automatically sets
Remarks:
– The R-Function excludes option P (output voltage adjust-
ment by potentiometer).
– If the output voltages are increased above Uo nom via R-
input control, option P setting, remote sensing or option
T, the output current(s) should be reduced accordingly so
that Po nom is not exceeded.
the output voltage to Uo nom
.
a) Adjustment by means of an external control voltage Uext
between pin 16 (R) and pin 14:
– The R-input (as well as option P) is related to the main
output.
The control voltage range is 0...2.75 V DC and allows an
output voltage adjustment in the range of approximately
– With double output units the second output follows the
value of the controlled main output. Resistor values as
indicated for the single output units should be used.
0...110% Uo nom
U
.
Uext = –––o––– • 2.5 V (approximate formula)
Uo nom
– For correct output voltage adjustment of double output
units the external wiring of the outputs should be accord-
ing to: R-function for different output configurations de-
pending upon the desired output configuration.
b) Adjustment by means of an external resistor:
Depending upon the value of the required output voltage
the resistor shall be connected
either: Between pin 16 and pin 14 (Uo < Uo nom) to
achieve an output voltage adjustment range of approxi-
mately 0...100% Uo nom
– In case of parallel connection the output voltages should
be individually set within a tolerance of 1...2%.
Warning:
or: Between pin 16 and pin 12 (Uo > Uo nom) to achieve
– Uext shall never exceed 2.75 V DC.
– The value of R'ext shall never be less than the lowest
value as indicated in table R'ext (for U0 > U0 nom) to
avoid damage to the unit!
an output voltage adjustment range of approximately
100...110% Uo nom
.
Table 6a: Rext for Uo < Uo nom; approximate values (Ui nom
,
Table 6b: R’ext for Uo > Uo nom; approximate values (Ui nom,
Io nom, series E 96 resistors); R'ext = •
I
o nom, series E 96 resistors); Rext = •
Uo nom = 24 V
Uo nom = 24 V
Uo [V] 1
Rext [kΩ]
Uo [V] 1
R'ext [kΩ]
4
6
8
10
12
14
16
18
20
22
8
0.806
1.33
2.00
2.87
4.02
5.62
8.06
12.1
20.0
44.2
24.25
24.5
24.75
25.0
25.25
25.5
25.75
26.0
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
52.5
52.8
3320
1690
1130
845
698
590
511
442
402
383
12
16
20
24
28
32
36
40
44
26.25
26.4
1 First column: single output units or double output units with separated outputs, second column: outputs in series connection
Edition 4/4.99
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KP Series
AC-DC Converters >100Watt
Rugged Environment
R-Function for different output configurations
06117
06118
+
+
Vo2+
Vo2+
Vo2–
Vo2–
Vo1+
Vo1–
Vo2+
4
6
4
Vo2+
6
1
24 V
Uo1
Vo2–
Vo2–
Vo1+
Vo1–
8
8
1
Uo1
48 V
–
10
12
14
10
12
2
–
14
16
Rext R'ext
Rext R'ext
16
R
R
Fig. 18a
Fig. 18b
LKP 5000 with H15 connector. R-input for output voltage
control. Wiring for output voltage 48 V with main and sec-
ond output connected in series.
LKP 5000 with H15 connector. R-input for output voltage
control. Wiring for output voltage 24 V with main and sec-
ond output connected in parallel.
06119
06120
+48 V
0 V
Vo2+
Vo2+
Vo2–
Vo2–
Vo1+
Vo1–
4
6
Vo2+
Vo2+
Vo2–
Vo2–
Vo1+
Vo1–
+
4
6
1
1
Uo2
–24 V
8
–
8
Uo2
+24 V
0 V
Uo1
10
12
+
10
12
2
1
1
Uo1
+24 V
+
14
16
14
16
Rext R'ext
Rext R'ext
R
R
Fig. 18c
Fig. 18d
LKP 5000 with H15 connector. R-input for output voltage
control. Wiring of main and second output for two sym-
metrical output voltages Uo1 and Uo2: ±24 V.
LKP 5000 with H15 connector. R-input for output voltage
control. Wiring of main and second output for two output
voltages Uo1 and Uo2: +24 V and +48 V.
1 A ceramic multilayer capacitor connected across the load re-
duces ripple and spikes.
06121
+
Vo2+
Vo2+
Vo2–
Vo2–
Vo1+
Vo1–
4
6
2 Shortest possible wiring for series connection at the female
connector
1
1
Uo2
24 V
24 V
–
8
+
10
12
Uo1
–
Remarks:
14
16
Rext R'ext
Double output units fitted with H15 connectors have the
output pins of the second output, pins 4/6 and 8/10, inter-
nally paralleled.
R
It is recommended that pins 4/6 and 8/10 be directly paral-
leled at the female connector as well to reduce the voltage
drop across the connector.
Fig. 18e
LKP 5000 with H15 connector. R-input for output voltage
control. Wiring of main and second output for two output
voltages Uo1 and Uo2: 24 V/24 V, the outputs are galvani-
cally isolated.
Please note: Uo2 varies depending upon its own load and
the load on output 1.
Edition 4/4.99
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AC-DC Converters >100Watt
KP Series
Display Status of LEDs
06002
Uo1 > 0.95...0.98Uo1 adj
Fig. 19
OK
i
Io L
LEDs "OK", "i" and "Io L"status versus input voltage
Conditions: Io ≤ Io nom, TC ≤ TC max, Uinh ≤ 0.8 V
Ui uv = undervoltage lock-out, Ui ov = overvoltage lock-out
Ui
Ui uv Ui min
Ui max Ui ov Ui abs
Uo1 > 0.95...0.98Uo1 adj
Uo1 < 0.95...0.98Uo1 adj
OK
LEDs "OK" and "Io L"status versus output current
Conditions: Ui min...Ui max, TC ≤ TC max, Uinh ≤ 0.8 V
Io L
Io
Io nom
IoL
i
i
LED "i"versus case temperature
Conditions: Ui min...Ui max, Io ≤ Io nom, Uinh ≤ 0.8 V
TC
TC max
TPTC threshold
Uinh threshold
LED "i"versus Uinh
Conditions: Ui min...Ui max, Io ≤ Io nom, TC ≤ TC max
Ui inh
+0.8 V
+2.4 V
+50 V
-50 V
LED off
LED Status undefined
LED on
Test Sockets (Main output only )
Test sockets for measuring the output voltage Uo1 are lo-
cated at the front of the module. The positive test socket is
protected by a series resistor (see: Functional Description,
block diagrams). The voltage measured at the test sockets
is approximately 30 mV lower than the value measured at
the output terminals.
In case of double output units externally connected in se-
ries for Uo = 51 V or 48 V the monitored output voltage is
25,5 V or 24 V respectively.
Edition 4/4.99
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MELCHER
The Power Partners.
KP Series
AC-DC Converters >100Watt
Rugged Environment
Electromagnetic Compatibility (EMC)
The KP series has been successfully tested to the following
specifications:
A metal oxide VDR together with an input fuse and an input
filter form an effective protection against high input tran-
sient voltages which typically occur in most installations.
Electromagnetic Immunity
Table 7: Immunity type tests
Phenomenon
Standard 1
Level
Coupling
mode 2
Value
applied
Waveform
Source
imped.
Test
procedure
In
Per-
oper. form. 3
4
Voltage surge
IEC 60571-1
i/c, +i/–i
800 Vp
1500 Vp
3000 Vp
4000 Vp
7000 Vp
1.5 • Ubatt
100 µs
50 µs
100 Ω
1 pos. and 1 neg.
voltage surge per
coupling mode
yes
5 µs
1 µs
100 ns
0.1/1/0.1 s
4
Supply related
surge
RIA 12
B
+i/–i
0.2 Ω
5 Ω
1 positive
surge
yes
4
Direct transient
C
D
E
F
G
H
J
+i/c, –i/c
960 Vp
1800 Vp
3600 Vp
4800 Vp
8400 Vp
1800 Vp
3600 Vp
4800 Vp
8400 Vp
10/100 µs
5/50 µs
5 pos. and 5 neg.
impulses
yes
0.5/5 µs
0.1/1 µs
0.05/0.1 µs
5/50 µs
100 Ω
Indirect coupled
transient
+o/c, –o/c
0.5/5 µs
0.1/1 µs
0.05/0.1 µs
1/50 ns
K
L
Electrostatic
discharge
(to case)
IEC/EN
61000-4-2
4
contact discharge 8000 Vp
330 Ω
10 positive and
10 negative
discharges
yes
A
air discharge
15000 Vp
4
4
Electromagnetic IEC/EN
3
4
antenna
10 V/m
AM 80%
1 kHz
n.a.
26…1000 MHz
yes
yes
field
61000-4-3
Electromagnetic ENV 50204
field,
pulse modulated
50% duty cycle,
200 Hz repetition
frequency
900 ±5 MHz
Electrical fast
transient/burst
IEC/EN
61000-4-4
capacitive, o/c
2000 Vp bursts of 5/50 ns 50 Ω
1 min positive
1 min negative
transients per
coupling mode
yes
A
2.5/5 kHz over
15 ms; burst
period: 300 ms
i/c, +i/–i
direct
4000 Vp
Surge
IEC/EN
61000-4-5
3
4
3
i/c
+i/–i
2000 Vp
1.2/50 µs
12 Ω
2 Ω
5 pos. and 5 neg.
surges per
yes
yes
B
4
Conducted
disturbances
IEC/EN
61000-4-6
i, o, signal wires
10 Vrms
(140 dBµV)
AM 80%
1 kHz
150 Ω
0.15...80 MHz
Voltage dips,
short interrup-
tions and volta- (table of the
ge variations standard)
IEC/EN
61000-4-11
40%
0%
+i/–i
230 → 92
→ 230 V
2/1/2 s
n.a.
B
B
230 → 0
→ 230 V
1 Related and previous standards are referenced in: Technical Information: Standards.
2 i = input, o = output, c = case.
3 A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.
4 Test in progress, please consult factory.
Note: Previous standards are referenced in: Technical In-
formation: Standards.
Edition 4/4.99
MELCHER
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The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
[dBµV]
90
07063
[dBµV/m]
50
07038
80
70
60
50
40
30
20
10
0
A
A
B
40
B
30
20
10
[MHz]
0
MHz
Fig. 20
Fig. 21
Typical disturbance voltage (quasi-peak) at the input accord- Typical radiated electromagnetic field strength (quasi-peak)
ing to CISPR 11/22 and EN 55011/22, measured at according to CISPR 11/22 and EN 55011/22, normalized to
i nom and Io nom
U
.
a distance of 10 m, measured at Ui nom and Io nom
.
Immunity to Environmental Conditions
Table 8: Mechanical stress
Test method
Standard
Test conditions
Temperature:
Status
Ca
Ea
Eb
Fc
Damp heat
steady state
IEC/DIN IEC 60068-2-3
MIL-STD-810D section 507.2 Relative humidity:
Duration:
40 ±2 °C
%
56 days
Unit not
operating
93 +2/-3
Shock
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-27
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
100 gn = 981 m/s2
6 ms
18 (3 each direction)
Unit
operating
Bump
(half-sinusoidal)
IEC/EN/DIN EN 60068-2-29
MIL-STD-810D section 516.3 Bump duration:
Number of bumps:
Acceleration amplitude:
40 gn = 392 m/s2
6 ms
6000 (1000 each direction)
Unit
operating
Vibration
IEC/EN/DIN EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.35 mm (10...60 Hz)
Unit
(sinusoidal)
5 gn = 49 m/s2 (60...2000 Hz) operating
10...2000 Hz
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h each axis)
Fda Random vibration IEC 60068-2-35
Acceleration spectral density: 0.05 gn2/Hz
Unit
wide band
Reproducibility
high
DIN 40046 part 23
Frequency band:
Acceleration magnitude:
Test duration:
20...500 Hz
4.9 gn rms
3 h (1 h each axis)
operating
Kb
Salt mist, cyclic
(sodium chloride
NaCl solution)
IEC/EN/DIN IEC 60068-2-52
Concentration:
Duration:
Storage:
Storage duration:
Number of cycles:
5% (30°C)
Unit not
operating
2 h per cycle
40°C, 93% rel. humidity
22 h per cycle
3
Table 9: Temperature specifications, values given are for an air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
-5
-6
-7
Characteristics
Conditions
min
–25
–25
–40
max
50
min
–25
–25
–40
max
60
min
–25
–25
–40
max
71
Unit
TA
TC
TS
Ambient temperature
Ui min...Ui max
Io = 0...Io nom
°C
Case temperature
85
90
95
Storage temperature
Not operational
100
100
100
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KP Series
AC-DC Converters >100Watt
Rugged Environment
7 TE
9 TE
3.27
Mechanical Data
Dimensions in mm. Tolerances ±0.3 mm unless otherwise indicated.
159
4.5
Test jacks (+/–)
Option P (Uo)
Option D (Uto)
Option D (Uti)
LED i (red)
LED OK (green)
LED IoL (red)
Measuring point of
case temperature TC
= Ø 3.5
= Ø 4.1
50
42
171.93 (DIN 41494)
Main face
80
d
Front plate
Back plate
168.5 ±0.5
European
Projection
Note:
– d ≥15 mm, recommended minimum distance to
next part to ensure proper air circulation at full
output power.
Fig. 22
– free air locations: the module should be moun-
ted with fins in vertical position to achieve a
maximum air flow through the heat sink.
Case K02 with heatsink, case aluminium, black finish and
self cooling, weight: approx. 1.55 kg
7 TE
3.27
4 TE
50
5
158
M 4
Measuring point of
case temperature TC
5
47.2
17.3
133.4
168 ±0.5
171.93 (DIN 41494)
Fig. 23
Case K02 with option B1 (cooling plate), case aluminium,
black finish and self cooling, weight: Approx. 1.15 kg
Edition 4/4.99
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AC-DC Converters >100Watt
KP Series
Safety and Installation Instructions
Connector Pin Allocation
Installation Instructions
The connector pin allocation table defines the electrical
potentials and the physical pin positions on the H15 con-
nector. Pin no. 24, the protective earth pin present on all
LKP AC-DC converters is leading, ensuring that it makes
contact with the female connector first.
The KP series AC-DC converters are components, in-
tended exclusively for inclusion within other equipment by
an industrial assembly operation or by professional install-
ers. Installation must strictly follow the national safety regu-
lations in compliance with the enclosure, mounting,
creepage, clearance, casualty, markings and segregation
requirements of the end-use application.
Table 10: H15 connector pin allocation
Pin
No.
Connector type H15
LKP 5000
Connection to the system shall be made via the female con-
nector H15 (see: Accessories). Other installation methods
may not meet the safety requirements.
4
6
Vo2+
Vo2+
Vo2–
Vo2–
Vo1+
Vo1–
R 1
Output 2
The AC-DC converters are provided with pin no. 24 ( ),
which is reliably connected with their case. For safety rea-
sons it is essential to connect this pin with the protective
earth of the supply system.
Output 2
8
Output 2
10
12
14
16
18
20
22
Output 2
An input fuse is built-in in the connection from pins no. 30
and 32 (P~) of the unit. Since this fuse is designed to pro-
tect the unit in case of an overcurrent and does not neces-
sarily cover all customer needs, an external fuse suitable
for the application and in compliance with the local require-
ments might be necessary in the wiring to one or both input
potentials, pins nos. 26 and 28 and/or nos. 30 and 32.
Output 1
Output 1
Control of Uo1
Inhibit
i
D
Save data
Current sharing
T
Important: Whenever the inhibit function is not in use, pin
no. 18 (i) should be connected to pin no. 14 (Vo1–) to en-
able the output(s).
24 2
26
Protective earth
Neutral
N
N
P
P
28
Neutral
Do not open the modules, or guarantee will be invali-
dated.
30
Phase
Due to high current values, all LKP units provide two inter-
nally parallel connected contacts for certain paths (pins 4/6,
8/10, 26/28 and 30/32, respectively). It is recommended to
connect load and supply to both female connector pins of
each path in order to keep the voltage drop across the con-
nector pins to an absolute minimum and to not over-
stress the connector contacts if currents are higher than
approx. 8 A. The connector contacts are rated 8 A over the
whole temperature range.
32
Phase
1 Feature R excludes option P and vice versa
2 Leading pin (pregrounding)
32
4
Make sure there is sufficient air flow available for convec-
tion cooling. This should be verified by measuring the case
temperature when the unit is installed and operated in the
end-use application. The maximum specified case tem-
perature TC max shall not be exceeded. See also: Thermal
Considerations.
Fixtures for connector retension
clips V (see Accessory Products)
Fig. 24
View of module's male connectors
Protection Degree
If the end-product is to be UL certified, the temperature of
the main isolation transformer should be evaluated as part
of the end-product investigation.
Condition: Female connector fitted to the unit.
IP 30: All units except those with option P, and except
those with option D with potentiometer.
IP 20: All units fitted with option P, or with option D with
potentiometer.
Check for hazardous voltages before altering any connec-
tions.
The output provides a hazardous energy level according to
IEC/EN 60950.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also: Safety
of operator accessible output circuit.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids is to be prevented, since the power supplies
are not hermetically sealed.
Edition 4/4.99
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KP Series
AC-DC Converters >100Watt
Rugged Environment
Standards and Approvals
All AC-DC converters correspond to class I equipment.
They are UL recognized according to UL 1950, UL recog-
nized for Canada to CAN/CSA C22.2 No. 950-95 and LGA
approved to IEC/EN 60950 standards.
• Operational insulation between output and output
• The use in a pollution degree 2 environment
• Connecting the input to a primary or secondary circuit
which is subject to a maximum transient rating of 2500 V
(overvoltage category III based on a 110 V primary cir-
cuit, overvoltage category II based on a 230 V primary
circuit).
The AC-DC converters are subject to manufacturing sur-
veillance in accordance with the above mentioned UL,
CSA, EN and ISO 9001 standards.
The units have been evaluated for:
• Building in
• Basic insulation between input and case, based on 250 V
AC and 400 V DC
• Double or reinforced insulation between input and output,
based on 250 V AC and 400 V DC
• Operational insulation between output and case.
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Melcher will not honour any guar-
antee claims resulting from electric strength field tests.
Important: Testing by applying AC voltages will result in
high and dangerous leakage currents flowing through
the Y-capacitors (see fig.: Block diagram).
Table 11: Isolation
Characteristic
Input to
case
Input to Output to Output to
Unit
output
case
output
Electric
strength
test voltage
Required according to
IEC/EN 60950
1.5
2.1
2.8
2.0
3.0
–
–
kVrms
4.2
–
–
kV DC
Actual factory test 1 s
5.6 1
4.0 1
1.4
1.0
0.14
0.1
1 In accordance with IEC/EN
60950 only subassemblies
are tested in factory with this
voltage.
AC test voltage equivalent
to actual factory test
kVrms
Insulation resistance at 500 V DC
>300
>300
>300
>100 2
MΩ
2 Tested at 100 V DC.
For creepage distances and clearances refer to Technical Information: Safety.
Leakage Currents in AC-DC operation
Leakage currents flow due to internal leakage capacitance
and RFI suppression Y-capacitors. The current values are
proportional to the mains voltage and nearly proportional to
the mains frequency and are specified at an input voltage of
254 V (50 Hz) where phase, neutral and protective earth
are correctly connected as required for class I equipment.
Under test conditions the leakage current flows through a
measuring instrument (MI) as described in fig.: Measuring
instrument for earth leakage current tests, which takes into
account impedance and sensitivity of a person touching
unearthed accessible parts. The current value is calculated
by dividing the measured voltage by 500 Ω. If inputs of K-
units are connected in parallel, their individual leakage cur-
rents are added.
1500 Ω
MI
500 Ω
10062
P
Vo+
P
N
N
Vo–
10 kΩ
220 nF
MI for
earth
leakage
current
22 nF
V
Fig. 26
Test set-up
Fig. 25
Measuring instrument (MI) for earth leaking current tests
according to IEC/EN 60950.
Table 12: Leakage currents
Characteristic
Class I
Unit
LKP 5000
Maximum earth
leakage current
Permissible according to IEC/EN 60950
Specified value at 254 V, 50 Hz
3.5
mA
0.82
Edition 4/4.99
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MELCHER
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Rugged Environment
AC-DC Converters >100Watt
KP Series
Safety of operator accessible output circuit
If the output circuit of an AC-DC converter is operator ac-
cessible, it shall be an SELV circuit according to the IEC/EN
60950 related safety standards.
to IEC/EN 60950 up to a configured output voltage (sum of
nominal voltages if in series or +/– configuration) of 36 V.
However, it is the sole responsibility of the installer to as-
sure the compliance with the relevant and applicable safety
regulations. More information is given in: Technical Infor-
mation: Safety.
The following table shows a possible installation configura-
tion, compliance with which causes the output circuit of an
KP series AC-DC converter to be an SELV circuit according
Table 13: Safety concept leading to an SELV output circuit
Conditions
AC-DC converter
Installation
Result
Nominal voltage
Grade of insulation
between input and output
provided by the AC-DC converter
Measures to achieve the resulting
safety status of the output circuit
Safety status of the AC-DC
converter output circuit
Mains
Double or reinforced
Earthed case 1 and installation
SELV circuit
≤250 V AC
according to the applicable standards
1 The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950.
10021
Fuse
+
~
Mains
AC-DC
con-
verter
SELV
Fig. 27
Fuse
–
~
Schematic safety concept. Use fuses and earth connec-
tion as per :Installation Instructions and table: Safety con-
cept leading to an SELV output circuit.
Earth connection
Edition 4/4.99
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KP Series
AC-DC Converters >100Watt
Rugged Environment
Description of Options
Table 14: Survey of options
Option
Function of Option
Characteristics
E
P 1, 2
D
Electronic inrush current limitation circuitry
Potentiometer for fine adjustment of output voltage
Input and/or output undervoltage monitoring circuitry
Current sharing
Active inrush current limitation
Adjustment range +10/–60% of Uo nom excludes R input
Safe data signal output (Versions D0...DD)
T
Interconnect T-pins if paralleling outputs (3 units max.)
Replaces standard heat sink, allowing direct chassis-mounting
B1
Cooling plate
1 Option R excludes option P and vice versa.
2 Option P not available for LKP 5740-6R
Option T Current Sharing
E Inrush Current Limitation
This option ensures that the output currents are approxi-
mately shared between all paralleled modules and in-
creases system reliability. To use this facility, simply inter-
connect the T pins of all modules. The load leads should
have equal length and cross section to ensure equal volt-
age drops. Not more than 3 units should be connected in
parallel. If output voltage adjustment is requested we
strongly recommend to use the R-input instead of option P,
as with option P the required setting accuracy is difficult to
achieve. The output voltages must be individually set prior
to paralleling to within a tolerance of 1...2% or the R pins
should be connected together.
The converters may be supplemented by an electronic cir-
cuit (option E, replacing the standard built-in NTC) to
achieve an enhanced inrush current limiting function.
Table 15: Inrush current characteristics with option E
Characteristics
LKP
Unit
Ui = 230 V AC
typ
–
max
21.7
50
Iinr p
tinr
Peak inrush current
Inrush current duration
A
35
ms
Power bus
+
–
Control
Vo2+
FET
Vo2–
T
Rectifier
11037
Module
RS
Ci
RI
Vo1+
Fig. 29
Option E block diagram
Vo1–
Load
Precaution:
Vo2+
Subsequent switch-on cycles at start-up are limited to
max. 10 cycles during the first 20 seconds (cold unit) and
at continuing on/off (TC = 95°C) max. 1 cycle every
8 sec.
Vo2–
T
Module
Vo1+
Vo1–
11002
Ii [A]
max. 5 units in parallel connection
Fig. 28
Paralleling of double output units using option T with
Power Bus
Capacitor Ci
fully charged
20
15
10
5
Normal operation
(FET fully conducting)
Option P Potentiometer
The potentiometer provides an output voltage adjustment
range of +10/–60% of Uo nom and is accessible through a
hole in the front cover. This feature enables compensation
for voltage drops across the connector and wiring. Option P
is not recommended if units are connected in parallel.
0
–5
–10
Option P excludes the R-function. With double output units
both outputs are affected by the potentiometer setting (dou-
bling the voltage setting if the outputs are in series).
tinr
10 20 30 40 50 60 70 80
t [ms]
0
If the output voltages are increased above Uo nom via R-in-
put control, option P setting, remote sensing or option T, the
output current(s) should be reduced accordingly so that
Po nom is not exceeded.
Fig. 30
Inrush current with option E, Ui = 230 V AC, Po = Po nom
Edition 4/4.99
20/23
MELCHER
The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
Option D Undervoltage Monitor
The input and/or output undervoltage monitoring circuit op-
erates independently of the built-in input undervoltage lock-
out circuit. Alogic "low" (JFET output) or "high" signal (NPN
output) is generated at pin 20 as soon as one of the moni-
tored voltages drops below the preselected threshold level
Ut. The return for this signal is Vo1–. The D output recovers
when the monitored voltage(s) exceed(s) Ut + Uh. The
threshold level Uti is adjusted in the factory. The threshold
level Uto is either adjusted by a potentiometer, accessible
through a hole in the front cover, or factory adjusted to a
fixed value specified by the customer.
Option D exists in various versions D0...DD as shown in the
following table.
Table 16: Undervoltage monitoring functions
Output type
Monitoring
Minimum adjustment range
of threshold level Ut
Uti Uto
Typical hysteresis Uho [% of Ut]
JFET
NPN
U i
Uo1
for Ut min...Ut max
Uho
D1
D2
D3
D4
D0
D5
D6
D7
D8
D9
no
yes
yes
no
yes
no
-
3.5...40 V 1
-
2.5...0.6
-
355 V DC 4
355 V DC 4
-
2
2
yes
yes
yes
yes
yes
(0.95...0.985 Uo1
(0.95...0.985 Uo1
3.5...40 V 3
3.5...40 V 3
3.5...40 V 1
)
)
"0"
"0"
no
-
2.5...0.6
2.5...0.6
2.5...0.6
yes
yes
355 V DC 4
355 V DC 4
DD
1 Threshold level adjustable by potentiometer
2 Fixed value. Tracking if Uo1 adjusted via R-input, option P or sense lines.
3 The threshold level permanently adjusted according to customer specification ±2% at 25°C. Any value within the specified range is
basically possible but causes a special type designation in addition to the standard option designations (D0/D9)!
4 Option D monitors the boost regulator output voltage. The trigger level is adjusted in the factory to 355 V DC.
11006
JFET output (D0…D4):
Vo1+
Connector pin D is internally connected via the drain-
source path of a JFET (self-conducting type) to the nega-
R
p
tive potential of output 1. UD ≤ 0.4 V (logic low) corresponds
to a monitored voltage level (Ui and/or Uo1) <Ut. The cur-
rent ID through the JFET should not exceed 2.5 mA. The
JFET is protected by a 0.5 W Zener diode of 8.2 V against
external overvoltages.
I
D
D
U
D
Ui, Uo1 status
Ui or Uo1 < Ut
D output, UD
Vo1–
low, L, UD ≤ 0.4 V at ID = 2.5 mA
high, H, ID ≤ 25 µA at UD = 5.25 V
Fig. 31
Ui and Uo1 > Ut + Uh
Option D0...D4: JFET output, ID ≤ 2.5 mA
11007
NPN output (D5...DD):
Vo1+
Connector pin D is internally connected via the collector-
emitter path of a NPN transistor to the negative potential of
output 1. UD < 0.4 V (logic low) corresponds to a monitored
voltage level (Ui and/or Uo1) > Ut + Uh. The current ID
through the open collector should not exceed 20 mA. The
NPN output is not protected against external overvoltages.
UD should not exceed 40 V.
R
p
I
D
D
U
D
Ui, Uo1 status
Ui or Uo1 < Ut
D output, UD
Vo1–
high, H, ID ≤ 25 µA at UD = 40 V
low, L, UD ≤ 0.4 V at ID = 20 mA
Fig. 32
Option D5...DD: NPN output, Uo1 ≤ 40 V, ID ≤ 20 mA
Ui and Uo1 > Ut + Uh
Table 17: D-output logic signals
Version of D
Ui < Ut resp. Uo < Ut
Ui > Ut + Uh resp. Uo > Ut
Configuration
JFET
D1, D2, D3, D4, D0
D5, D6, D7, D8, D9, DD
low
high
low
high
NPN
Edition 4/4.99
21/23
MELCHER
The Power Partners.
KP Series
AC-DC Converters >100Watt
Rugged Environment
D-signal with respect to input and output voltage versus time:
Input voltage monitoring
NPN
UD
11044
UD high
3
3
3
3
UD low
t
0
ID
ID high
ID low
t
0
JFET UD
UD high
UD low
t
0
1
4
4
4
th
tlow min
tlow min
tlow min
thigh min
Uo1
Uo1 nom
1
th
1
0.95
t
t
0
Uci [V DC]
358
355
0
Input voltage failure
Switch-on cycle
Input voltage sag
Switch-on cycle and subsequent
input voltage failure
Output voltage monitoring
NPN UD
2
UD high
UD low
t
t
0
ID
ID high
ID low
0
UD
JFET
UD high
UD low
t
t
0
4
tlow min
Uo1
Uo1 nom
Uto +Uho
1 Hold-up time see section: Electrical Input Data.
2 With output voltage monitoring, hold-up time th = 0.
Uto
3 The signal will remain high if the D output is connected to
an external source.
0
4 tlow min = 100...170 ms, typically 130 ms.
Output voltage failure
Fig. 33
Relationship between Uci, Uo1, UD, Uo1/Uo nom versus time
Edition 4/4.99
22/23
MELCHER
The Power Partners.
Rugged Environment
AC-DC Converters >100Watt
KP Series
B1 Cooling Plate (see: Mechanical Data)
Where a cooling surface is available, we recommend the
use of a cooling plate (option B1) instead of the standard
heatsink. The mounting system should ensure sufficient
cooling capacity to guarantee that the maximum case tem-
perature TC max is not exceeded. The cooling capacity is cal-
culated by:
(100% – η)
PLoss = –––––––––– (Uo • Io)
η
Efficiency h see: Type survey.
Accessories
A variety of electrical and mechanical accessories are
available including:
– Front panels for 19" rack mounting, Schroff and Intermas
systems.
– Mating H15 connectors with screw, solder, fast-on or
press-fit terminals.
– Connector retention facilities.
– Code key system for connector coding.
– Chassis mounting plates for mounting the 19" cassette to
a chassis/wall where only frontal access is given.
– Universal mounting bracket for DIN-rail or chassis moun-
ting.
For more detailed information please refer to: Accessory
Products.
Front panels
H15 female connector,
Code key system
Mounting plate,
Connector retention clips
Universal mounting bracket for DIN-rail mounting.
Edition 4/4.99
23/23
MELCHER
The Power Partners.
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