LM2540-9ERD2AF_技术文档

Cassette Style

AC-DC Converters

M Series

50 Watt AC-DC (DC-DC) Converters

M Series

Input voltage range 85...264 V AC

1, 2 or 3 isolated outputs up to 48 V DC

3 kV AC I/O electric strength test voltage

• Extremely wide input voltage range suitable for most

AC mains around the world

• Efficient input filter and built-in surge and transient

suppression circuitry

• Outputs individually isolated and controlled

• Outputs fully protected against overload

Safety according to IEC/EN 60950

LGA

111

4.37"

3U

168

39

Summary

6.6"

1.54"

8TE

The M series of AC-DC (DC-DC) converters represents a

broad and flexible range of power supplies for use in ad-

vanced industrial electronic systems. Features include high

efficiency, reliability, low output voltage noise and excellent

dynamic response to load/line changes due to individual

regulation of each output.

The converter inputs are protected against surges and tran-

sients occuring at the Input. An input over- and under-

voltage lock-out circuitry disables the outputs if the input

voltage is outside the specified range. These types include

an inrush current limitation preventing circuit breakers and

fuses from being damaged at switch-on.

cies LGA (Germany) and UL (USA). The UL Mark for

Canada has been officially recognized by regulatory au-

thorities in provinces across Canada.

The case design allows operation at nominal load up to

71°C in a free air ambient temperature. If forced cooling is

provided, the ambient temperature may exceed 71°C but

the case temperature should remain below 95°C under all

conditions.

All outputs are open- and short-circuit proof and are pro-

tected against overvoltages by means of built-in suppressor

diodes. The outputs can be inhibited by a logic signal ap-

plied to the connector pin 2 (i). If the inhibit function is not

used pin 2 should be connected to pin 23 to enable the out-

puts.

A temperature sensor generates an inhibit signal which

disables the outputs if the case temperature T_Cexceeds the

limit. The outputs are automatically re-enabled when the

temperature drops below the limit.

LED indicators display the status of the converter and allow

visual monitoring of the system at any time.

Various options are available to adapt the converters to in-

dividual applications.

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 standard

IEC/EN 60950 and have been approved by the safety agen-

The modules may either be plugged into 19" rack systems

according to DIN 41494, or be chassis mounted.

Table of Contents

Page

Summary .......................................................................... 1

Type Survey and Key Data .............................................. 2

Type Key .......................................................................... 3

Functional Description...................................................... 4

Electrical Input Data ......................................................... 5

Electrical Output Data ...................................................... 6

Auxiliary Functions ........................................................... 9

Electromagnetic Compatibility (EMC) ............................ 11

Immunity to Environmental Conditions........................... 13

Mechanical Data ............................................................ 14

Safety and Installation Instructions ................................ 15

Description of Options.................................................... 18

Accessories .................................................................... 24

Edition 5/5.2000

1/24

Cassette Style

AC-DC Converters

M Series

Type Survey and Key Data

Non standard input/output configurations or special custom adaptions are available on request. See also: Commercial In-

formation: Inquiry Form for Customized Power Supply.

The type survey tables provide an overview of the basic input and output configurations. More than 1000 different types

have been manufactured providing different output configurations and customized specialities. Please consult Power-

One's field sales engineers for specific requirements. The best technical solution will carefully be considered and a detailed

proposal submitted.

Table 1: Class I equipment

Output 1

Output 2

Output 3

Input Voltage Range and Efficiency ¹

Options

U_{i min}...U_{i max}

U_{o nom}I_{o nom}U_{o nom}I_{o nom}U_{o nom}I_{o nom}

[V DC] [A] [V DC] [A] [V DC] [A]

85…264 V AC/47...440 Hz

h_min

[%]

(88…372 V DC)

5.1

8.0

4.0

3.4

2.0

1.0

-

LM 1001-7R

LM 1301-7R

LM 1501-7R

LM 1601-7R

LM 1901-7R

73

79

78

81

–9

E

P

12.0

15.0

24.0

48.0

D0...D9

V0,V2,V3

A

H

F

12.0

15.0

2.0

1.7

12.0

15.0

2.0

1.7

-

LM 2320-7

LM 2540-7

77

78

5.1

5.0

12.0

15.0

0.7

0.6

12.0

15.0

0.7

0.6

LM 3020-7

LM 3040-7

73

71

Table 2: Class II equipment (double insulation)

Output 1

Output 2

Output 3

Input Voltage Range and Efficiency ¹

Options

U_{i min}...U_{i max}

U_{o nom}I_{o nom}U_{o nom}I_{o nom}U_{o nom}I_{o nom}

[V DC] [A] [V DC] [A] [V DC] [A]

85…264 V AC/47...65 Hz

η _min

[%]

(88…372 V DC)

5.1

8.0

4.0

3.4

2.0

1.0

-

LMZ 1001-7R

LMZ 1301-7R

LMZ 1501-7R

LMZ 1601-7R

LMZ 1901-7R

73

79

78

81

–9

E

P

12.0

15.0

24.0

48.0

D0…D9

V0,V2,V3

A

H

F

12.0

15.0

2.0

1.7

12.0

15.0

2.0

1.7

-

LMZ 2320-7

LMZ 2540-7

77

78

5.1

5.0

12.0

15.0

0.7

0.6

12.0

15.0

0.7

0.6

LMZ 3020-7

LMZ 3040-7

73

71

¹Efficiency at U_{i nom}and I_{o nom}

.

Edition 5/5.2000

2/24

Cassette Style

AC-DC Converters

M Series

Type Key

L M Z 2 5 40 -7 E R P D V A H F

Input voltage range U_i: 85...264 V AC, 88...372 V DC .... L

Series .............................................................................. M

Class II Equipment ........................................................... Z

Number of outputs ...................................................... 1...3

Output 1, U_{o1 nom}

:

5.1 V ....................................................... 0...2

12 V ............................................................. 3

15 V ........................................................ 4...5

24 V ............................................................. 6

other voltages ......................................... 7...8

48 V ............................................................. 9

other specs for single output modules .................... 01...99

Output 2 and 3, U_{o2 nom}, U_{o3 nom}

:

5.1 V ................................................... 01...19

12 V .................................................... 20...39

15 V .................................................... 40...59

24 V .................................................... 60...69

other voltages for multiple output modules ............. 70...99

Ambient temperature range T_A:

–25…71°C .................................................. -7

–40…71°C .................................................. -9

customer specific .................................. -0...-6

Auxiliary functions and options:

Inrush current limitation ...............................E

Output voltage control input

(single output modules only) ....................... R ¹

Potentiometers for fine adjustment

of output voltages ........................................P ¹

Save data signal (D0...D9, to be specified) D ²

ACFAIL signal (V0, V2, V3, to be specified) V ²

Output voltage test sockets .........................A

Increased electric strength test voltage (o/c)H

Input fuse built-in (not accessible) ............... F

¹Feature R excludes option P and vice versa

²Option D excludes option V and vice versa

Example: LM 2540-7PD3A: AC-DC converter, input voltage range 85...264 V, providing output 1 with 15 V/1.7 A and

output 2 with 15 V/1.7 A; equipped with potentiometers, undervoltage monitoring and test sockets.

Edition 5/5.2000

3/24

Cassette Style

AC-DC Converters

M Series

Functional Description

The auxiliary outputs U_o2and U_o3are individually regulated

by means of secondary switching transistors. Each auxili-

ary output's current is sensed using a current transformer. If

one of the outputs is driven into current limit, the other out-

puts will reduce their output voltages as well because all

output currents are controlled by the same main control cir-

cuit.

The input voltage is fed via an input fuse, an input filter, a

rectifier and an inrush current limiter to the input capacitor.

This capacitor sources a single transistor forward converter.

Each output is powered by a separate secondary winding of

the main transformer. The resultant voltages are rectified

and their ripples smoothed by a power choke and an output

filter. The control logic senses the main output voltage U_o1

and generates, with respect to the maximum admissible

output currents, the control signal for the primary switching

transistor. This signal is fed back via a coupling transformer.

P (option)

03081

2

5

i

D/V

R

2

Main control circuit

14

17

G

C_Y

20

23

Output 1

filter

29

N

C_MKT

14

17

Control

circuit

Output 2

filter

1

C_MKT

NTC

8

P

32

26

Control

circuit

Output 3

filter

11

C_Y

Fig. 1a

Block diagram, class I equipment

P (option)

03082

C_Y

2

i

5

D/V

R

2

Main control circuit

14

17

G

20

23

Output 1

filter

29

N

C_MKT

14

17

Control

circuit

Output 2

filter

1

C_MKT

NTC

8

P

32

Control

circuit

Output 3

filter

11

¹Inrush current limiter (option E: refer to the description of

option E)

Fig. 1b

Block diagram, class II equipment (double insulation)

²Single output modules LM 1000 and LMZ 1000 with feature R

Edition 5/5.2000

4/24

Cassette Style

AC-DC Converters

M Series

Electrical Input Data

General conditions:

– T_A= 25°C, unless T_Cis specified.

– Connector pins 2 and 23 interconnected, with option P: U_o= U_{o nom}, R input not connected.

Table 3: Input data

Input

LM/LMZ

Characteristics

Conditions

min

85

typ

max

264

Unit

U_i

Operating Input voltage

I_o= 0…I_{o nom}

T_{C min}…T_{C max}

V AC ¹

V DC ¹

88

372 ⁷

U_{i nom}Nominal input voltage

310 ²

0.20

0.77

0.43

3

I_i

i_i

DC input current

AC input current

U_i= 310 V DC, I_{o nom}

U_i= 115 V AC, I_{o nom}

U_i= 230 V AC, I_{o nom}

A DC

A_rms

3

¹In AC powered mode:

3

LM types: 47...440 Hz;

LMZ types: 47...65 Hz.

²310 V DC corresponds with

220 V AC.

P_{i 0}

No-load input power:

Single output

Double output

Triple output

U_{i nom}

I_o1,2,3= 0

1

7

6

1.5

9

W

³With multiple output modules,

the same condition for each

output applies.

P_{i inh}

Idle input power

Peak inrush current ⁸

Rise time ⁸

inhibit mode

2

⁴I_{inr p}= U_i/(R_s+ R_i).

4

I_{inr p}

t_{inr r}

t_{inr h}

R_i

U_i= U_{i max}

R_S= 0 Ω ⁵

T_C= 25°C

60 ⁶

A

⁵R_S= source resistance.

⁶Value for initial switch-on cy-

cle.

300

900

µs

Time to half value ⁸

Input resistance ⁸

Input capacitance

⁷With LMZ converters, the

maximum nominal DC output

voltage from the front end is

250 V according to IEC/EN

60950.

T_C= 25°C

6200 ⁶

140

–400

0

mΩ

µF

C_i

270

400

284

U_{i abs}Input voltage limits

without any damage

V DC

V AC

⁸Not valid for units with option

E. See description of options.

Input fuse

Input Under-/Overvoltage Lock-out

A fuse holder containing a slow-blow type fuse (Dimension:

5 × 20 mm) is mounted in the converter's back plate. The

fuse protects the module against severe defects. It may not

fully protect the module at input voltages exceeding

200 V DC. In applications where the converters operate at

DC source voltages above 200 V DC, an external fuse or a

circuit breaker at system level should be installed.

For applications where the fuse should be inaccessible: see

Option F.

If the input voltage remains below 0.8 U_{i min}or exceeds

1.1U_{i max}(approx. values), an internally generated inhibit

signal disables the output(s). When checking this function

the absolute maximum input voltage rating U_{i abs}must be

carefully considered (see table: Input Data). Between U_{i min}

and the undervoltage lock-out level the output voltage may

be below the value defined in table: Output data (see: Tech-

nical Information: Measuring and Testing).

Inrush Current

Table 4: Fuse type (slow-blow)

The modules incorporate an NTC resistor in the input cir-

cuitry which (during the initial switch-on cycle) limits the

peak inrush current to avoid damage to connectors and

switching devices. Subsequent switch-on cycles within a

short interval will cause an increase of the peak inrush cur-

rent due to the warming up of the NTC resistor. Refer also

to: Option E description.

Series

Schurter type

Part number

LM/LMZ 1000...3000

SPT 2.5 A 250 V

0001.2508

I_i[A]

04046

1.00

04053

I_i[A]

50

40

30

20

10

U_i

DC

____

t [ms]

0

0.10

U_{i min}

1

2

3

4

5

6

DC

2.0

4.0

0

0.5 1.0 1.5

2.5 3.0 3.5

Fig. 2

Fig. 3

Typical input current versus relative input voltage at

nominal output load

Typical inrush current at initial switch-on cycle and at

_{i max}(DC) versus time

U

Edition 5/5.2000

5/24

Cassette Style

AC-DC Converters

M Series

Electrical Output Data

General conditions

– T_A= 25°C, unless T_Cis specified.

– Connector pins 2 and 23 interconnected, U_o= U_{o nom}(option P), R input not connected.

Table 5: Output data

Output

U_{o nom}

5.1 V

min typ max min typ max min typ max min typ max min typ max Unit

5.07 5.13 11.93 12.07 14.91 15.09 23.86 24.14 47.72 48.28

12 V

15 V

24 V

48 V

Characteristics

Conditions

1

U_o

Output voltage

U_{i nom}, I_{o nom}

V

U_{o p}Output overvoltage

protection by

7.5

21

25

41

85

supressor diode

I_{o nom}Output current

U_{i min}...U_{i max}

T_{C min}...T_{C max}

see: Type Survey and Key Data

see fig.: Typical output voltage U_o1versus output currents I_o

I_{o L}

Output current

limitation response

u_o

Output Low freq.

U_i= 230 V AC

3

6

5

10

7

14

10 20

40 80

20 40 mV_pp

1

voltage

I_{o nom}

IEC/EN 61204 ⁵

BW = 20 MHz

Switch. freq.

15 30

60 120

25 50

40 80

35 70

40 80

50 100

-

noise

Total

DU_{o U}Static line regulation U_{i min}...U_{i nom}

±10 ±30

±12 ±50

±15 ±60

±15 ±60 mV

U_{i nom}...U_{i max}

1

I_{o nom}

DU_{o I}Static load regulation U_{i nom}

6

0

25

13 50

17 60

30 80

60 150

I_{o nom}...0 ²

DU_{o I c}Static cross load

U_{i nom}

I_{o nom}...0 ³

±15

0

±20

0

±30

0

±130

1

±40

-

regulation ⁴

u_{o d}

t_d

Dynamic Voltage

load

U_{i nom}

±220

0.6

±110

0.6

±150

0.5

±150

deviation I_{o nom}↔ ¹/

I_{o nom}

3

2

3

regulation

IEC/EN 61204

Recovery

time

2

ms

mV

ms

u_{o d c}Dynamic Voltage

U_{i nom}

+10

–100

+10

–75

+10

–140

+20

–200

-

cross load deviation I_{o nom}↔ ¹/

3

I_{o nom}

regulation

4

IEC/EN 61204

t_{d c}

Recovery

time

0.05

0.5

0.2

0.3

0.5

0.7

1

2

-

a_Uo

Temperature

coefficient

DU_o/DT_C

U_{i min}...U_{i max}

0...I_{o nom}

±0.02

±1.0

±0.02

±2.4

±0.02

±3.0

±0.02

±4.8

±0.02

±9.6

%/K

mV/K

¹With multiple output modules, the same condition for each out-

put applies.

³Condition for non-specified output, individually tested, other

output(s) loaded with constant current I_{o nom}

See fig.: Dynamic load regulation.

⁴Multiple output modules.

.

²Condition for specified output. With multiple output modules,

other output(s) loaded with constant current I_{o nom}

See fig.: Dynamic load regulation.

.

⁵See: Technical Information: Measuring and Testing.

05022

U_o1

U_{o1 nom}

I_{o nom}

I_oL1

I_oL2,I_oL3

05010

U_o

1.0

.95

u_od

DU_{o I}

u_od

I_o1

t_d

I_o2,I_o3

t

0.5

I /I

o

o nom

1

0

I_o

I_{o nom}

≥10 µs

0

0.5

1.0

1.2

Fig. 4

Fig. 5

Dynamic load regulation u_{o d}versus load change.

Typical output voltage U_o1versus output currents I_o.

Edition 5/5.2000

6/24

Cassette Style

AC-DC Converters

M Series

Thermal Considerations

Output Protection

Each output is protected against overvoltages which could

occur due to a failure of the internal control circuit. Voltage

suppressor diodes (which under worst case condition may

become a short circuit) provide the required protection. The

suppressor diodes are not designed to withstand externally

applied overvoltages. Overload at any of the outputs will

cause a shut-down of all outputs. A red LED indicates the

overload condition of the respective output.

If a converter is located in free, quasi-stationary air (con-

vection cooling) at the indicated maximum ambient tem-

perature T_{A 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 T_C(see: Mechanical Data) will approach the

indicated value T_{C max}after the warm-up phase. However,

the relationship between T_Aand T_Cdepends 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-

Parallel and Series Connection

Main outputs of equal nominal voltage can be connected in

parallel. It is important to assure that the main output of a

multiple output module is forced to supply a minimum cur-

rent of 0.1 A to enable correct operation of its own auxiliary

outputs.

nents and surfaces. T_{A max}is therefore, contrary to T_{C max}

,

an indicative value only.

Caution: The installer must ensure that under all operat-

ing conditions T_Cremains within the limits stated in the

table: Temperature specifications.

In parallel operation, one or more of the main outputs may

operate continuously in current limitation which will cause

an increase in case temperature. Consequently, a reduction

of the max. ambient temperature by 10 K is recommended.

Notes: Sufficient forced cooling or an additional heat sink

allows T_Ato be higher than 71°C (e.g. 85°C) if T_{C max}is not

exceeded.

Main or auxiliary outputs can be connected in series with

any other output of the same or another module. In series

connection, the maximum output current is limited by the

lowest current limit. Output ripple and regulation values are

added. Connection wiring should be kept as short as possi-

ble.

For -7 or -9 units at an ambient temperature T_Aof 85°C with

only convection cooling, the maximum permissible current

for each output is approx. 50% of its nominal value as per

figure.

I_o/I_{o nom}

If output terminals are connected together in order to estab-

lish multi-voltage configurations, e.g. +5.1 V, ±12 V etc. the

common ground connecting point should be as close as

possible to the connector of the converter to avoid exces-

sive output ripple voltages.

Forced cooling

1.0

0.9

0.8

0.7

Convection cooling

Auxiliary outputs should never be connected in parallel!

0.6

T_{C max}

0.5

Output Current Allocation for Special Types

0.4

0.3

0.2

0.1

Output currents differing from those given for standard

types (as per: Type Survey and Key Data) can be provided.

A maximum output power of 50 W should be considered, if

an ambient temperature range of –25...71°C is required.

The maximum permissible output currents are indicated in

the table below. If (upon customer's request) output volta-

ges are different from standard values, the relevant output

currents have to be adapted accordingly.

0

T [°C]

A

T

50

60

70

80

90

100

A min

Fig. 6

Output current derating versus temperature for -7 and -9

units.

With reduced maximum ambient temperature or with forced

cooling, the total output power may exceed 50 W. Custom-

ized configurations always need to be checked by a feasi-

bility study first. Please ask Power-One's sales engineers

for a proposal appropriate to your specific needs. See also:

Commercial Information: Inquiry Form for Customized

Power Supply.

Thermal Protection

A temperature sensor generates an internal inhibit signal

which disables the outputs if the case temperature exceeds

T_{C max}. The outputs are automatically re-enabled if the tem-

perature drops below this limit.

Edition 5/5.2000

7/24

Cassette Style

AC-DC Converters

M Series

Table 6: Current allocation with special types

Output voltage

all types

U_{o1/2/3 nom}[V]

Output 1

all types

I_{o1 max}[A]

Output 2

LM/LMZ 2000

I_{o2 max}[A]

Output 2

LM/LMZ 3000

I_{o2 max}[A]

Output 3

LM/LMZ 3000

I_{o3 max}[A]

Temperature

T_A[°C]

T_C[°C]

5.1

12

15

24

8.0

4.0

3.4

2.0

4.0

2.0

1.7

1.0

1.8 (2.5 ¹)

1.5

1.2

1.0

0.5

–25...71

–25...95

1.2

0.7

2

5.1

12

15

24

10.0

5.0

4.0

4.5

2.5

2.0

1.3

2.1 (2.8 ¹)

1.7

1.8

1.5

1.3

0.7

–25...60

–25...50

–25...90

–25...85

1.5

0.9

2.5

5.1

12

15

24

11.0

6.0

4.6

5.0

3.0

2.3

1.5

2.4 (3.0 ¹)

2.0

1.7

1.5

0.8

1.7

1.0

3.0

¹Special high current components required

²U_{i min}has to be increased

Hold-up Time and Output Response

An output voltage overshoot will not occur when the module

is turned on or off.

When the input voltage is switched off, the output voltage

will remain high for a certain hold-up time t_hbefore the out-

put voltage falls below 0.95 U_{o nom}

.

t_h[ms]

The behavior of the outputs is similar with either the input

voltage applied or the inhibit switched low.

05127

05025

Output

U_{o nom}

100.00

0.95U_{o nom}

0.1

0

t

t_r

t_f

t_h

U_i

10.00

1

0

t

Inhibit

1

U _{i DC}

_____

1.00

0

U_{i min DC}

1

2

3

4

5

Fig. 7

Fig. 8

Typical hold-up time t_hversus relative input voltage at I_{o nom}

Output response as a function of input voltage (on/off

switching) or inhibit control

Table 7: Output response time t_r, values not applicable for modules equipped with option E

Type of Converter

t_rat P_o= 0 and t_fat P_o= P_{o nom}

t_rand t_fat P_o= ³/

4

P_{o nom}

t_rat P_o= P_{o nom}

Unit

ms

typ

max

typ

max

typ

max

LM/LMZ 1001-7R

LM/LMZ 1301-7R

LM/LMZ 1501-7R

LM/LMZ 1601-7R

LM/LMZ 1901-7R

5

10

5

10

20

10

5

15

10

30

20

10

20

40

30

60

15

65

30

130

25

100

50

40

80

200

165

330

LM/LMZ 2320-7

LM/LMZ 2540-7

20

15

40

30

20

60

40

50

35

100

70

LM/LMZ 3020-7

LM/LMZ 3040-7

55

40

110

80

85

60

170

120

145

100

290

200

Conditions: R input not used. For multiple output modules the figures indicated in the table above relate to the output which

reacts slowest. All outputs are resistively loaded. Variation of the input voltage within U_{i min}...U_{i max}does not influence the

values considerably.

Edition 5/5.2000

8/24

Cassette Style

AC-DC Converters

M Series

Auxiliary Functions

i Inhibit for Remote On and Off

Note: With open i input: Output is disabled (U_o= off).

For output response refer to Hold-up Time and Output Re-

sponse.

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 2

to pin 23 to enable the outputs (active low logic, fail safe).

I_inh[mA]

U

_inh= 2.4 V

U

_inh= 0.8 V

2.0

1.6

1.2

06031

0.8

0.4

Vo+

i

Vi+

U_o= on

U_o= off

I_inh

U_inh

0

–0.4

–0.8

Vo–

Vi–

U_inh[V]

–50

Fig. 10

Typical inhibit current I_inhversus inhibit voltage U_inh

–30

–10

0

10

30

50

Fig. 9

Definition of inhibit voltage and current

Table 8: Inhibit data

Characteristics

Conditions

min

–50

2.4

typ

max

0.8

Unit

U_inhInhibit input voltage to keep

output voltage

U_o= on

U_o= off

U_{i min}...U_{i max}

T_{C min}...T_{C max}

V DC

50

I _inh

Inhibit current

U_inh= 0

–60

–100

–220

µA

Vo1+

06088

R-Control for Output Voltage Adjustment

U_ref

4000 Ω

R₂

R₁

Notes: With open R input, U_o≈ U_{o nom}. R excludes option P.

As a standard feature, single output modules offer an

adjustable output voltage identified by letter R in the type

designation.

+

–

R

G

The output voltage U_o1can either be adjusted with an exter-

nal voltage (U_ext) or with an external resistor (R₁or R₂). The

adjustment range is approximative 0…110% of U_{o nom}. For

output voltages U_o> U_{o nom}, the minimum input voltage ac-

cording to: Electrical Input Data increases proportionally to

Fig. 12

Voltage adjustment with external resistor R₁or R₂

b) U_o≈ 0...100% U_{o nom}, using R₁between R (14) and

U_o/U_{o nom}

.

G (17):

Vo1+

06087

R

U_o≈ U_{o nom}• ––––––¹–––––

R₁+ 4000 Ω

4000 Ω • U_o

R₁≈ ––––––––––

U_{o nom}- U_o

U_ref

4000 Ω

R

+

–

+

c) U_o≈ U_{o nom}...U_{o max}, using R₂between R (14) and

U_ext

Vo1+ (20):

G

U_{o max}= U_{o nom}+ 10%

Fig. 11

4000 Ω • U_o• (U_{o nom}– 2.5 V)

R₂≈ ––––––––––––––––––––––––

Voltage adjustment with external voltage U_ext

2.5 V • (U_o– U_{o nom}

)

U

• 2.5 V • R₂

U_o≈ ––––––––––^o–ⁿ–^o–^m–––––––––––––––––––

a) U_o≈ 0...110% U_{o nom}, using U_extbetween R (14) and

G (17):

2.5 V • (R₂+ 4000 Ω) – U_{o nom}• 4000 Ω

U

_ext≈ 2.5 V • –––^o––

U_{o nom}

U_ext

U_o≈ U_{o nom}• –––––

2.5 V

U

Caution: To prevent damage, R₂should never be less

than 47 kΩ.

Caution: To prevent damage, U_extshould not exceed

8 V, nor be negative.

Note: R inputs of n units with paralleled outputs may be

paralleled, too, but if only one external resistor is to be

used, its value should be R₁/n, or R₂/n respectively.

Edition 5/5.2000

9/24

Cassette Style

AC-DC Converters

M Series

Table 9a: R₁for U_o< U_{o nom}(conditions: U_{i nom}, I_{o nom}, rounded up to resistor values E 96, R₂= ∞)

U_{o nom}= 5.1 V

U_{o nom}= 12 V

U_{o nom}= 15 V

U_{o nom}= 24 V

U_{o nom}= 48 V

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0.432

0.976

1.65

2.61

3.83

5.76

8.66

14.7

30.1

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

0.806

1.33

2.0

2.87

4.02

5.62

8.06

12.1

20.0

44.2

2.0

4.0

6.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

0.619

1.47

2.67

4.53

6.04

8.06

11.0

16.2

26.1

56.2

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

22.0

0.806

1.33

2.0

2.87

4.02

5.62

8.06

12.1

20.0

44.2

8.0

12.0

16.0

20.0

24.0

28.0

32.0

36.0

40.0

44.0

0.806

1.33

2.0

2.87

4.02

5.62

8.06

12.1

20.0

44.2

200.0

Table 9b: R₂for U_o> U_{o nom}(conditions: U_{i nom}, I_{o nom}, rounded up to resistor values E 96, R₁= ∞)

U_{o nom}= 5.1 V

U_o[V] R₂[kΩ]

U_{o nom}= 12 V

U_{o nom}= 15 V

U_{o nom}= 24 V

U_{o nom}= 48 V

U_o[V]

R₂[kΩ]

U_o[V]

R₂[kΩ]

U_o[V]

R₂[kΩ]

U_o[V]

R₂[kΩ]

5.15

5.20

5.25

5.30

5.35

5.40

5.45

5.50

464

215

147

110

12.1

12.2

12.3

12.4

12.5

12.6

12.7

12.8

13.0

13.2

1780

909

619

464

383

316

274

249

200

169

15.2

15.4

15.6

15.8

16.0

16.2

16.4

16.5

1470

750

511

383

332

274

237

226

24.25

24.50

24.75

25.00

25.25

25.50

25.75

26.00

26.25

26.40

3160

1620

1100

825

715

590

511

453

402

383

48.5

49.0

49.5

50.0

50.5

51.0

51.5

52.0

52.5

52.8

6810

3480

2370

1780

1470

1270

1100

953

90.9

78.7

68.1

61.9

845

806

Display Status of LEDs

06002

U_o1> 0.95...0.98U_{o1 adj}

Fig. 13

OK

i

I_{o L}

LEDs "OK" and "i" status versus input voltage

Conditions: I_o≤ I_{o nom}, T_C≤ T_{C max}, U_inh≤ 0.8 V

U_{i uv}= undervoltage lock-out, U_{i ov}= overvoltage lock-out

U_i

U_{i uv}U_{i min}

U_{i max}U_{i ov}U_{i abs}

U_o1> 0.95...0.98U_{o1 adj}

U_o1< 0.95...0.98U_{o1 adj}

OK

I_{o L}

LED "OK" and "I_{o L}"status versus output current

Conditions: U_{i min}...U_{i max}, T_C≤ T_{C max}, U_inh≤ 0.8 V

I_o

I_{o nom}

I_oL

i

LED "i"versus case temperature

Conditions: U_{i min}...U_{i max}, I_o≤ I_{o nom}, U_inh≤ 0.8 V

T_C

T_{C max}

U_{inh threshold}

T_{PTC threshold}

LED "i"versus U_inh

Conditions: U_{i min}...U_{i max}, I_o≤ I_{o nom}, T_C≤ T_{C max}

U_{i inh}

+0.8 V

+2.4 V

+50 V

-50 V

LED off

LED Status undefined

LED on

Edition 5/5.2000

10/24

Cassette Style

AC-DC Converters

M Series

Electromagnetic Compatibility (EMC)

A suppressor diode or a metal oxide VDR (depending upon

the type) together with an input fuse and an input filter form

an effective protection against high input transient voltages

which typically occur in most installations, but especially in

battery driven mobile applications. The M series has been

successfully tested to the following specifications:

Electromagnetic Immunity

Table 10: Immunity type tests

Phenomenon

Standard ¹

Level

Coupling

mode ²

Value

applied

Waveform

Source

imped.

Test

procedure

In

Per-

oper. form. ³

1 MHz burst

disturbance

IEC

60255-22-1

III

i/o, i/c, o/o, o/c

+i/–i, +o/–o

–i/c, +i/–i

2500 V_p

1000 V_p

800 V_p

400 damped

1 MHz waves/s

200 Ω

2 s per

coupling mode

yes

A

Voltage surge

IEC 60571-1

100 µs

50 µs

100 Ω

1 pos. and 1 neg.

voltage surge per

coupling mode

1500 V_p

3000 V_p

4000 V_p

7000 V_p

3.5 • U_batt

1.5 • U_batt

1.4 • U_batt

960 V_p

5 µs

1 µs

100 ns

2/20/2 ms

0.1/1/0.1 s

Supply related

surge

RIA 12

A ⁴

B

+i/–i

0.2 Ω

1 positive

surge

yes

B

A

EN 50155

1 Ω

5 Ω

Direct transient RIA 12

EN 50155

C

D

E

F

G

H

J

–i/c, +i/–i

10/100 µs

5/50 µs

5 pos. and 5 neg.

impulses

A

1800 V_p

3600 V_p

4800 V_p

8400 V_p

(for EN 50155

levels D, G,

H and L only)

0.5/5 µs

0.1/1 µs

0.05/0.1 µs

5/50 µs

100 Ω

Indirect coupled

transient

–o/c, +o/–o, –o/–i 1800 V_p

3600 V_p

0.5/5 µs

0.1/1 µs

0.05/0.1 µs

1/50 ns

K

L

4800 V_p

8400 V_p

A ⁵

A ⁶

Electrostatic

discharge

(to case)

IEC/EN

61000-4-2

4

contact discharge 8000 V_p

330 Ω

10 positive and

10 negative

discharges

yes

air discharge

15000 V_p

Electromagnetic IEC/EN

x

antenna

20 V/m

AM 80%

1 kHz

n.a.

26…1000 MHz

yes

A ⁵

A

field

61000-4-3

Electromagnetic ENV 50204

field,

pulse modulated

4

30 V/m

50% duty cycle,

200 Hz repetition

frequency

900 ±5 MHz

Electrical fast

transient/burst

IEC/EN

61000-4-4

3

4

direct, i/c, +i/–i

2000 V_pbursts of 5/50 ns 50 Ω

1 min positive

1 min negative

transients per

coupling mode

yes

A ⁵

B

2.5/5 kHz over

15 ms; burst

4000 V_p

period: 300 ms

Surge

IEC/EN

61000-4-5

4

3

x

3

i/c

+i/–i

4000 V_p

2000 V_p

2500 V_p

1.2/50 µs

12 Ω

2 Ω

5 pos. and 5 neg.

surges per

coupling mode

A

i/c, +i/–i

10/700 µs

40 Ω

150 Ω

Conducted

disturbances

IEC/EN

61000-4-6

i, o, signal wires

10 V_rms

(140 dBµV)

AM 80%

1 kHz

0.15...80 MHz

B

Voltage dips,

short interrup-

tions and voltage (table of the

variations standard)

IEC/EN

61000-4-11

40%

0%

+i/–i

230 → 92

→ 230 V AC

2/1/2 s

n.a.

with LM units only

A

230 → 0

→ 230 V AC

B ⁷

⁴If tested with U_Batt= 110 V, overvoltage lock-out can occur dur-

ing the surge.

¹Related and previous standards are referenced in: Technical In-

formation: Standards.

⁵For converters with 3 output voltages, temporary deviation from

specs possible.

²i = input, o = output, c = case.

³A = Normal operation, no deviation from specifications,

B = Temporary deviation from specs possible.

⁶With class II equipment (LMZ) only met if case is earthed.

⁷No output voltage during approx. 1.6 s, self-recovering.

Edition 5/5.2000

11/24

Cassette Style

AC-DC Converters

M Series

Electromagnetic Emissions

[dBµV/m]

50

Table 11: Emissions at U_{i nom}and I_{o nom}

(LM/LMZ at 230 V AC)

07036

A

Types

Level

40

CISPR11/EN 55011

CISPR22/EN 55022

CISPR14/

EN 55014

B

≤30 MHz

≥30 MHz

30

LM 1000

LM 2000

LM 3000

B

A

<limit

20

LMZ 1000

LMZ 2000

LMZ 3000

B

-

A

-

A

<limit

-

>limit

10

0

[MHz]

[dBµV]

90

07007

Fig. 15

80

70

60

50

40

30

20

10

0

A

B

Typical radiated electromagnetic field strength (quais

peak) according to CISPR 11/22 and EN 55011/22 and

normalized to a distance of 10 m, measured at U_{i nom}and

I_{o nom}

.

MHz

Fig. 14

Typical disturbance voltage (quasi peak) at the input accord-

ing to CISPR 11/22 and EN 55011/22, measured at

U_{i nom}and I_{o nom}.

Edition 5/5.2000

12/24

Cassette Style

AC-DC Converters

M Series

Immunity to Environmental Conditions

Table 12: Mechanical stress

Test method

Standard

Test conditions

Status

Ca

Ea

Eb

Fc

Damp heat

steady state

IEC/DIN IEC 60068-2-3

MIL-STD-810D section 507.2 Relative humidity:

Duration:

Temperature:

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 g_n= 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 g_n= 392 m/s²

6 ms

6000 (1000 each direction)

Unit

operating

Vibration

(sinusoidal)

IEC/EN/DIN EN 60068-2-6

MIL-STD-810D section 514.3

Acceleration amplitude:

0.35 mm (10...60 Hz)

5 g_n= 49 m/s²(60...2000 Hz) operating

10...2000 Hz

Unit

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 g_n²/Hz

Unit

wide band

Reproducibility

high

DIN 40046 part 23

Frequency band:

Acceleration magnitude:

Test duration:

20...500 Hz

4.9 g_{n 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 13: Temperature specifications, valid for an air pressure of 800...1200 hPa (800...1200 mbar)

Temperature

Standard -7

Option -9

Characteristics

Conditions

Operational ²

min

max

71

min

–40

–55

max

71

Unit

T_A

T_C

T_S

Ambient temperature ¹

Case temperature ³

Storage temperature ¹

–25

–40

°C

95

Non operational

100

¹MIL-STD-810D section 501.2 and 502.2.

²See: Thermal Considerations.

³Overtemperature lock-out at T_C>95°C (PTC).

Table 14: MTBF

Values at specified

case temperature

Module types

LM/LMZ 1000

LM/LMZ 2000

LM/LMZ 3000

Ground benign

Ground fixed

Ground mobile

Unit

40°C

70°C

50°C

MTBF ¹

320'000

255'000

225'000

130'000

105'000

80'000

40'000

32'000

28'000

35'000

28'000

25'000

h

Device hours ²

LM/LMZ 1000

LM/LMZ 2000

LM/LMZ 3000

880'000

720'000

740'000

¹Calculated in accordance with MIL-HDBK-217E (calculation according to edition F would show even better results)

²Statistical values, based on an average of 4300 working hours per year and in general field use, over 3 years

Edition 5/5.2000

13/24

Cassette Style

AC-DC Converters

M Series

Mechanical Data

Dimensions in mm. Tolerances ±0.3 mm unless otherwise indicated.

European

Projection

09012

Mounting holes for retaining clips V

Male connector H11 according to DIN 41 612

(Gold plated contacts on customer's request)

34

100 ^±0.6

Front plate

103

M 3; depth = 4 mm

(chassis mount)

Main

face

Rear

face

Measuring point for

case temperatureT_C

22

Mounting plane of

connector H11

(11.6)

88

38.7

111.2 ^±0.8(3U)

Back plate

94.5 ^±0.1

95 ^±0.5

22.30

17.25

12.17

7.09

0

OK (LED green)

I_oL(LED red)

Inhibit i (LED red)

Potentiometer (option D)

or potentiometer (option V)

Test sockets (option A)

Potentiometer(s) (option P)

Fig. 16

Note: Long case, elongated by 60 mm for 220 mm rack

AC-DC converter in case M02, weight 770 g (approx.).

Case aluminium, black finish and self cooling.

depth, is available on request.

Edition 5/5.2000

14/24

Cassette Style

AC-DC Converters

M Series

10015

Safety and Installation Instructions

Connector pin Allocation

The connector pin allocation table defines the electrical

potentials and the physical pin positions on the H11 con-

nector. Pin no. 26, the protective earth pin present on all LM

(class I equipment) AC-DC converters is leading, ensuring

that it makes contact with the female connector first.

32 29 26 23 20 17 14 11 8

5

2

Fig. 17

View of male H11 connector

Table 15: H11 connector pin allocation

Electrical Determination

LM 1000

Pin Ident

LMZ 1000

LM 2000

Pin Ident

LMZ 2000

LM 3000

Pin Ident

LMZ 3000

Ident

Inhibit control input

Safe data or ACFAIL

2

5

i

2

5

i

2

5

i

2

5

i

2

5

i

2

5

i

D or V

Output voltage (positive)

Output voltage (negative)

8

11

Vo1+

Vo1–

8

11

Vo1+

Vo1–

8

11

8

11

8

11

Vo3+

Vo3–

8

11

Vo3+

Vo3–

Control input + ¹

Control input –

14

17

R

G

14

17

R

G

Output voltage (positive)

Output voltage (negative)

14

17

Vo2+

Vo2–

14

17

Vo2+

Vo2–

14

17

Vo2+

Vo2–

14

17

Vo2+

Vo2–

Output voltage (positive)

Output voltage (negative)

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

Protective earthing ²

26

AC input voltage ³

AC input voltage

29

32

N

P

29

32

N

P

29

32

N

P

29

32

N

P

29

32

N

P

29

32

N

P

¹This function is not simultaneously available with option P

²Leading pin (pregrounding)

³In DC-DC operation pin 29 should be connected to the earth related potential of the input voltage

Installation Instructions

The M series AC-DC converters are components, intended

Important: Whenever the inhibit function is not in use,

pin no. 2 (i) should be connected to pin no. 23 (Vo1-) to

enable the output(s).

exclusively for inclusion within other equipment by an in-

dustrial assembly operation or by professional installers. In-

stallation must strictly follow the national safety regulations

in compliance with the enclosure, mounting, creepage,

clearance, casualty, markings and segregation require-

ments of the end-use application. See also: Technical Infor-

mation: Installation and Application.

Do not open the modules, or guarantee will be invali-

dated.

Make sure that there is sufficient air flow available for con-

vection 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 T_{C max}shall not be exceeded. See also: Thermal

Considerations.

Connection to the system shall be made via the female con-

nector H11 (see: Accessories). Other installation methods

may not meet the safety requirements.

LMAC-DC converters (class I equipment) are provided with

pin no. 26 ( ), which is reliably connected with their case.

For safety reasons it is essential to connect this pin with the

protective earth of the supply system if required in: Safety

of operator accessible output circuit.

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.

Cleaning Agents

The P input (pin no. 32) is internally fused. This fuse is de-

signed to protect the unit in case of overcurrent and may not

be able to satisfy all customer requirements. External fuses

in the wiring to one or both input pins (no. 30 and/or no. 32)

may therefore be necessary to ensure compliance with lo-

cal requirements. See also: Input Fuse.

In order to avoid possible damage, any penetration of liq-

uids (e.g. cleaning fluids) is to be prevented, since the

power supplies are not hermetically sealed.

Edition 5/5.2000

15/24

Cassette Style

AC-DC Converters

M Series

Standards and approvals

•

Double or reinforced insulation between input and out-

put, based on 250 V AC and 400 V DC

Operational insulation between output(s) and case

Operational insulation between the outputs

LM AC-DC converters correspond to class I equipment,

while LMZ types correspond to class II equipment. All types

are UL recognized according to UL 1950, UL recognized for

Canada to CAN/CSA C22.2 No. 950-95 and LGA approved

to IEC/EN 60950 standards.

•

The use in a pollution degree 2 environment

Connecting the input to a primary or secondary circuit

with a maximum transient rating of 2500 V (overvoltage

category III based on a 110 V primary circuit, overvolt-

age category II based on a 230 V primary circuit).

The units have been evaluated for:

•

Building in,

•

Supplementary insulation between input and case,

based on 250 V AC and 400 V DC (class I equipment)

Double or reinforced insulation between input and case,

based on 250 V AC and DC (class II equipment)

The AC-DC converters are subject to manufacturing sur-

veillance in accordance with the above mentioned UL,

CSA, EN and with ISO 9001 standards.

•

Isolation

The electric strength test is performed as a factory test in

accordance with IEC/EN 60950 and UL 1950 and should

not be repeated in the field. Power-One will not honour any

guarantee/warranty 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 16: Isolation

Characteristic

Input to

case

class I

Input to

case

class II

Input to

output

class I

Input to Output to Output to Output to Unit

output

class II

case

option H

output

Electric

strength

test voltage

Required according to

IEC/EN 60950

1.5

2.1

2.8

2.0

3.0

4.2

5.6

4.0

3.0 ¹

4.2 ¹

5.6 ¹

4.0 ¹

3.0

4.2

5.6

4.0

0.5

0.7

1.4

1.0

0.5

0.7

2.8

2.0

-

kV_rms

-

kV DC

Actual factory test 1 s

0.3

0.2

AC test voltage equivalent

to actual factory test

kV_rms

Insulation resistance at 500 V DC

>300

>100 ²

MΩ

¹In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage.

²Tested at 300 V DC.

For creepage distances and clearances refer to: Technical Information: Safety.

Protection Degree

Condition: Female connector fitted to the unit.

IP 40: All units, except those with options P, A or K, and

except those with option D or V with potentiometer.

IP 30: All units fitted with options A or K, except those with

option P, and except those with option D or V with

potentiometer.

IP 20: All units fitted with option P, or with option D or V

with potentiometer.

1500 Ω

MI

Leakage Currents in AC-DC operation

500 Ω

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

264 V (50 Hz) where phase, neutral and protective earth

are correctly connected as required for class I equipment.

10 kΩ

220 nF

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 and/or

outputs of M-units are connected in parallel, their individual

leakage currents are added.

22 nF

V

Fig. 18

Measuring instrument (MI) for earth leakage current tests

according to IEC/EN 60950.

Edition 5/5.2000

16/24

Cassette Style

AC-DC Converters

M Series

10042

10043

P

N

P

Vo+

LMZ 1000 Vo+

P

N

P

N

LMZ 2000

LMZ 3000

N

Vo–

LM 1000

LM 2000

LM 3000

MI for

earth

leakage

current

connection

to case

MI for

enclosure

leakage

current

MI for

output

leakage

current

MI for

output

leakage

current

Fig. 19

Fig. 20

Test set-up for class I equipment.

Test set-up for class II equipment.

Table 17: Leakage currents

Characteristic

Class I

Class II

Unit

LM 1000...3000

LMZ 1000...3000

Maximum earth

leakage current

Permissible according to IEC/EN 60950

Specified value at 264 V, 50 Hz

3.5

1.4

-

mA

-

Maximum enclosure

leakage current

Permissible according to IEC/EN 60950

Specified value at 264 V, 50 Hz

0.25

0.03

0.25

0.15

-

Maximum output

leakage current

Permissible according to IEC/EN 60950

Specified value at 264 V, 50 Hz

0.25

0.005

Safety of operator accessible output circuit

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 Informa-

tion: Safety.

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.

The following table shows a possible installation configura-

tion, compliance with which causes the output circuit of an

M series AC-DC converter to be an SELV circuit according

to IEC/EN 60950 up to a configured output voltage (sum of

nominal voltages if in series or +/– configuration) of 36 V.

If the M series AC-DC converters are used as DC-DC con-

verters, please refer to the data sheet: DC-DC converters

≤100 Watt M series.

Table 18: Safety concept leading to an SELV output circuit

Conditions

AC-DC converter

Installation

Result

Nominal supply

voltage

Converter Grade of insulation

Measures to achieve the resulting

Safety status of the AC-DC

converter output circuit

type

between input and output safety status of the output circuit

by the AC-DC converter

Mains

LM

Double or reinforced

Earthed case ¹and installation

SELV circuit

≤250 V AC

according to the applicable standards

LMZ

Installation according to the applicable

standards

¹The earth connection has to be provided be thge installler according to the relevant safety standards, e.g. IEC/EN 60950.

10021

Fuse

+

~

Mains

AC-DC

con-

verter

SELV

Fuse

–

~

Earth connection

Fig. 21

Schematic safety concept. Use fuses and earth connec-

tion as per: Installation Instructions and table: Safety con-

cept leading to an SELV output circuit.

Edition 5/5.2000

17/24

Cassette Style

AC-DC Converters

M Series

Description of Options

Table 19: Survey of options

Option

–9

Function of option

Extended operational ambient temperature range

Test sockets at front panel for check of output voltage U_ointernally measured at the connector terminals

Characteristic

T_A= –40...71°C

A

E

Electronic inrush current limitation circuitry

Potentiometer for fine adjustment of output voltage

Input fuse built-in inside case

Active inrush current limitation for CM, EM, LM, CMZ, LMZ

P ¹

F

Adjustment range ±5% of U_{o nom}, excludes R input

Fuse not externally accessible

H

Enhanced output to case electric strength test voltage 2000 V AC (standard: 1000 V AC)

D ²

V ^{2 3}

Input and/or output undervoltage monitoring circuitry

Safe data signal output (D0...D9)

ACFAIL signal according to VME specifications (V0, V2, V3)

¹Function R excludes option P and vice versa

²Option D excludes option V and vice versa

³Only available if main output voltage U_o1= 5.1 V

-9 Extended Temperature Range

P Potentiometer

Option -9 extends the operational ambient temperature

range from –25...71°C (standard) to –40...71°C. The power

supplies provide full nominal output power with convection

cooling.

Optionally built-in multi-turn potentiometers provide an out-

put voltage adjustment range of minimum ±5% of U_{o nom}

and are accessible through holes in the front cover. Com-

pensation of voltage drop across connector and wiring be-

comes easily achievable. For output voltages U_o> U_{o nom}

the minimum input voltage according to: Electrical Input

Data increases proportionally to U_o/U_{o nom}

,

A Test Sockets

.

Test sockets (pin Ø = 2 mm, distance d = 5.08 mm) are lo-

cated at the front of the module. The output voltage is

sensed at the connector pins inside the module.

Note: Potentiometers are not recommended for mobile ap-

plications.

Table 20: Configuration of option A and option P

Type of option

LM/LMZ 1000

LM/LMZ 2000

LM/LMZ 3000

Output 1

Output 2

Output 1

Output 2

Output 3

Potentiometer ¹

Test sockets

yes

no

¹LM/LMZ 1000 types equipped with option P do not provide the R input simultaneously, pins 14 and 17 are not connected.

F Fuse Not Accessible

H Enhanced Electric Strenght Test

The standard M units have a fuseholder containing a 5 × 20

mm fuse which is externally accessible and to be found in

the back plate near the connector. Some applications re-

quire an inaccessible fuse. Option F provides a fuse moun-

ted directly onto the main PCB inside the case.

Electric strength test voltage output to case 2800 V DC

(2000 V AC) instead of 1400 V DC (1000 V AC).

The full self-protecting functions of the module do normally

not lead to broken fuses, except if a power component in-

side fails (switching transistor, freewheeling diode, etc). In

such cases the defective unit has to be returned to Power-

One for repair.

Edition 5/5.2000

18/24

Cassette Style

AC-DC Converters

M Series

E Electronic Inrush Current Limitation

11040

I_i[A]

The standard versions include a passive inrush current limi-

tation in the form of an NTC resistor.

For applications which require an extended inrush current

limitation, an active electronic circuit as shown in: Option E

Block diagram has been developed. Typical inrush current

waveforms of units equipped with this option are shown

below.

6

4

Capacitor C_i

fully charged

Normal operation

(FET fully conducting)

2

Caution

In order to avoid overload of the series resistor R_Ithe on/

off switching cycle should be limited to 12 s if switched

on/off continuously. There should not be more than 10

start-up cycles within 20 s at a case temperature of

25°C.

0

-2

-4

-6

If the modules are driven by an input voltage below

100 VAC, the maximum case temperature should be de-

rated by 10 K or the total output power should be derated

by 20%. Units driven by DC input voltages do not need

to be derated within the full specified input voltage

range.

t [ms]

0

20

t_inr40

60

80

Fig. 22

Typical inrush current waveform of a LM type at

Availability:

U_i= 230 V AC and I_{o nom}

.

Option E is available with a nominal output power of 51 W

maximum.

11018

Table 21: Inrush current characteristics with option E

Characteristic

U_i= 230 VAC

LM/LMZ

Unit

Control

typ

6

max

FET

I_{inr p}

t_inr

Peak inrush current

Inrush current duration

10

A

35

50

ms

Rectifier

(LM/LMZ types)

R_S

C_i

R_I

Fig. 23

Option E block diagram

Edition 5/5.2000

19/24

Cassette Style

AC-DC Converters

M Series

D Undervoltage Monitor

The input and/or output undervoltage monitoring circuit op-

erates independently of the built-in input undervoltage lock-

out circuit. A logic "low" (JFET output) or "high" signal (NPN

output) is generated at pin 5 as soon as one of the moni-

tored voltages drops below the preselected threshold level

U_t. The return for this signal is Vo1– (pin 23). The D output

recovers when the monitored voltage(s) exceed(s) U_t+U_h.

The threshold level U_tis either adjustable by a potentio-

meter, accessible through a hole in the front cover, or is fac-

tory adjusted to a fixed value specified by the customer.

Option D exists in various versions D0...D9 as shown in the

following table.

Table 22: Undervoltage monitor functions

Output type

JFET NPN

Monitoring

Minimum adjustment range

of threshold level U_t

Typical hysteresis U_hfor

U_{t min}...U_{t max}[% of U_t]

U_i

U_o1

U_ti

U_to

U_hi

U_ho

2.3...1

–

D1

D5

no

yes

no

yes

no

–

3.5 V...48 V ¹

–

1

–

D2

D3

D4

D0

D6

D7

D8

D9

U_{i min}...U_{i max}

3.0...0.5

–

2

yes

no

U_{i min}...U_{i max}

0.95...0.98 U_o1

3.5 V...48 V ³

–

"0"

–

"0"

no

–

1.8...1

–

3 4

yes

U_{i min}...U_{i max}

2.2...0.4

2

yes

0.95...0.98 U_o1

"0"

¹Threshold level adjustable by potentiometer (not recommended for mobile applications)

²Fixed value between 95% and 98% of U_o1(tracking)

³Fixed value, resistor-adjusted according to customer's specifications ±2% at 25°C; individual type number is determined by Power-

One

⁴Adjusted at I_{o nom}

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-

tive potential of output 1. U_D≤ 0.4 V (logic low) corresponds

to a monitored voltage level (U_iand/or U_o1) < U_t. The cur-

rent I_Dthrough 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.

R

p

I

D

U

D

U_i, U_o1status

U_ior U_o1< U_t

D output, U_D

Vo1–

low, L, U_D≤ 0.4 V at I_D= 2.5 mA

high, H, I_D≤ 25 µA at U_D= 5.25 V

Fig. 24

U_iand U_o1> U_t+ U_h

Options D0...D4, JFET output

11007

NPN output (D5...D9):

Vo1+

Connector pin D is internally connected via the collector-

emitter path of a NPN transistor to the negative potential of

output 1. U_D≤ 0.4 V (logic low) corresponds to a monitored

voltage level (U_iand/or U_o1) > U_t+ U_h. The current I_D

through the open collector should not exceed 20 mA. The

NPN output is not protected against external overvoltages.

U_Dshould not exceed 40 V.

R

p

I

D

U

D

U_i, U_o1status

U_ior U_o1< U_t

D output, U_D

Vo1–

high, H, I_D≤ 25 µA at U_D= 40 V

low, L, U_D≤ 0.4 V at I_D= 20 mA

Fig. 25

U_iand U_o1> U_t+ U_h

Options D5...D9, NPN output

Edition 5/5.2000

20/24

Cassette Style

AC-DC Converters

M Series

11021

U_D

DU_ti

U_hi

Threshold tolerances and hysteresis:

If U_iis monitored, the internal input voltage after the input

filter and rectifier is measured. Consequently this voltage

differs from the voltage at the connector pins by the voltage

drop DU_tiacross input filter and rectifier. The threshold level

of the D0 and D9 options is factory adjusted at nominal out-

put current I_{o nom}and at T_A= 25°C. The value of DU_tide-

pends upon the threshold level U_t, temperature and input

current. The input current is a function of the input voltage

and the output power.

U_{D high}

P

U_{D low}

U_i

U_ti

Fig. 26

Definition of U_ti, DU_tiand U_hi(JFET output)

Input voltage monitoring

NPN

U_D

11008

U_{D high}

3

U_{D low}

0

t

I_D

I_{D high}

I_{D low}

0

t

JFET U_D

U_{D high}

U_{D low}

0

t

1

4

t_h

t_{low min}

t_{high min}

U_o1

U_{o1 nom}

1

t_h

1

0.95

t

0

U_i[V DC]

U_ti+U_hi

U_ti

0

Input voltage failure

Switch-on cycle

Input voltage sag

Switch-on cycle and subsequent

input voltage failure

Output voltage monitoring

NPN U_D

2

U_{D high}

3

U_{D low}

0

t

I_D

I_{D high}

I_{D low}

0

U_D

JFET

U_{D high}

U_{D low}

0

t

4

t_{low min}

¹See "El. output data" for hold-up time.

²With output voltage monitoring the hold-up time t_h= 0

³The D signal remains high if the D output is connected to

an external source.

U_o1

U_{o1 nom}

U_to+U_ho

U_to

⁴t_{low min}= 40...200 ms, typically 80 ms

0

Output voltage failure

Fig. 27

Relationship between U_i, U_o1, U_D, I_Dand U_o1/U_{o nom}versus time.

Edition 5/5.2000

21/24

Cassette Style

AC-DC Converters

M Series

V ACFAIL signal (VME)

If the input voltage is below the required level, an external

hold-up capacitor (C_{i ext}) should be added. If the units are

AC powered, an external input capacitor cannot be applied

unless an additional rectifier is provided.

Available for units with U_o1= 5.1 V

This option defines an undervoltage monitoring circuit for

the input or the input and main output voltage equivalent to

option D and generates the ACFAIL signal (V signal) which

conforms to the VME standard.

Formula for additional external input capacitor

2 • P_o• (t_h+ 0.3 ms) • 100

C_{i ext}= ––––––––––––––––––––– – C_{i min}

2

η • (U_ti²– U_{i min}

)

The low state level of the ACFAIL signal is specified at a

sink current of I_V= 48 mA to U_V≤ 0.6 V (open-collector out-

put of a NPN transistor). The pull-up resistor feeding the

open-collector output should be placed on the VME back-

plane.

whereas:

C_{i min}= minimum internal input capacitance [mF], accord-

ing to the table below

C_{i ext}= external input capacitance [mF]

P_o= output power [W]

After the ACFAIL signal has gone low, the VME standard

requires a hold-up time t_hof at least 4 ms before the 5.1 V

output drops to 4.875 V when the 5.1 V output is fully

loaded. This hold-up time t_his provided by the internal input

capacitance. Consequently the working input voltage and

the threshold level U_tshould be adequately above the mini-

mum input voltage U_{i min}of the converter so that enough

energy is remaining in the input capacitance.

η

= efficiency [%]

t_h

= hold-up time [ms]

U_{i min}= minimum input voltage [V]

U_t= threshold level [V]

The threshold level U_tiof option V2 and V3 is adjusted dur-

ing manufacture to a value according to the table below.

Formula for threshold level for desired value of t_h:

Option V operates independently of the built-in input under-

voltage lock-out circuit. A logic "low" signal is generated at

pin 5 as soon as one of the monitored voltages drops below

the preselected threshold level U_t. The return for this signal

is Vo1– (pin 23). The V output recovers when the monitored

voltage(s) exceed(s) U_t+ U_h. The threshold level U_tis either

adjustable by a potentiometer, accessible through a hole in

the front cover, or is factory adjusted to a determined cus-

tomer specified value.

2 • P_o• (t_h+ 0.3 ms) • 100

2

U_ti

=

––––––––––––––––––––– + U_{i min}

C_{i min}• η

Table 23: Available internal input capacitance and factory

potentiometer setting of U_tiwith resulting hold-up time

Types

C_{i min}

U_ti

LM/LMZ

0.14

Unit

mF

Versions V0, V2 and V3 are available as shown below.

120

V DC

ms

t_h

8.18

Table 24: Undervoltage monitor functions

V output

(VME compatible)

Monitoring

Minimum adjustment range

of threshold level U_t

Typical hysteresis U_h[% of U_t]

for U_{t min}...U_{t max}

U_i

U_o1

U_ti

U_to

U_hi

U_ho

1

–

V2

V3

V0

yes

no

yes

no

U_{i min}...U_{i max}

3.0...0.5

2.2...0.4

-

2

0.95...0.98 U_o1

"0"

-

3 4

U_{i min}...U_{i max}

-

yes

0.95...0.98 U_o1

"0"

1

2

3

4

Threshold level adjustable by potentiometer (not recommended for mobile applications).

Fixed value between 95% and 98% of U_o1(tracking), output undervoltage monitoring is not a requirement of VME standard.

Adjusted at I_{o nom}

Fixed value, resistor-adjusted (±2% at 25°C) acc. to customer's specifications; individual type number is determined by Power-One

11009

V output (V0, V2, V3):

Vo1+

Connector pin V is internally connected to the open collec-

tor of a NPN transistor. The emitter is connected to the

negative potential of output 1. U_V≤ 0.6 V (logic low) corre-

sponds to a monitored voltage level (U_iand/or U_o1) < U_t.

The current I_Vthrough the open collector should not exceed

50 mA. The NPN output is not protected against external

overvoltages. U_Vshould not exceed 80 V.

R

p

I

V

U

V

U_i, U_o1status

U_ior U_o1< U_t

V output, U_V

Vo1–

low, L, U_V≤ 0.6 V at I_V= 50 mA

high, H, I_V≤ 25 µA at U_V= 5.1 V

Fig. 28

Output configuration of options V0, V2 and V3

U_iand U_o1> U_t+ U_h

Edition 5/5.2000

22/24

Cassette Style

AC-DC Converters

M Series

11023

U_V

DU_ti

U_hi

Threshold tolerances and hysteresis:

If U_iis monitored, the internal input voltage is measured af-

ter the input filter and rectifier. Consequently this voltage

differs from the voltage at the connector pins by the voltage

drop DU_tiacross input filter and rectifier. The threshold level

of option V0 is factory adjusted at I_{o nom}and T_A= 25°C. The

value of DU_tidepends upon the threshold level U_ti, tem-

perature and input current. The input current is a function of

input voltage and output power.

U_{V high}

P

U_{V low}

U_i

U_ti

Fig. 29

Definition of U_ti, DU_tiand U_hi

Input voltage monitoring

2

t_{low min}

V2

U_{V high}

U_V

3

11010

4

2

4

2

U_{V low}

0

t

t_{low min}

V3

U_{V high}

U_V

3

U_{V low}

0

t

1

t_h

U_o1

5.1 V

4.875 V

2.0 V

0

t

U_i[V DC]

U_ti+ U_hi

U_ti

t

0

Input voltage failure

Switch-on cycle

Input voltage sag

Switch-on cycle and subsequent

input voltage failure

Output voltage monitoring

V2 U_V

U_{V high}

4

U_{V low}

t

0

2

t_{low min}

V3 U_V

U_{V high}

3

4

U_{V low}

0

U_o1

5.1 V

4.875 V

2.0 V

0

t

¹VME request: minimum 4 ms

²t_{low min}= 40...200 ms, typically 80 ms

U_i

³U_Vlevel not defined at U_o1< 2.0 V

U_ti+ U_hi

U_ti

⁴The V signal drops simultaneously with the output voltage, if the

pull-up resistor R_pis connected to Vo1+. The V signal remains

high if R_pis connected to an external source.

t

0

Output voltage failure

Fig. 30

Relationship between U_i, U_o1, U_V, I_Vand U_o1/U_{o nom}versus time.

Edition 5/5.2000

23/24

Cassette Style

AC-DC Converters

M Series

Accessories

A variety of electrical and mechanical accessories are

available including:

– Front panels for 19" rack mounting, Schroff and Intermas

systems.

– Mating H11 connectors with screw, solder, fast-on or

press-fit terminals.

– Connector retention facilities.

– Code key system for connector coding.

– Flexible H11 PCB for mounting of the unit onto a PCB.

– 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

H11 female connector,

Code key system

Flexible H11 PCB

Universal mounting bracket for DIN-rail mounting.

Mounting plate,

Connector retention clips

Edition 5/5.2000

24/24


型号：	LM2540-9ERD2AF
厂家：	BEL FUSE INC.
描述：	AC-DC Regulated Power Supply Module, 2 Output, 50W, METAL, CASE M02, MODULE
文件：	总24页 (文件大小：982K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LM2540-9ERD2AF [BEL]

相关型号：

LM2540-9ERD2AH

LM2540-9ERD2AHF

LM2540-9ERD2F

LM2540-9ERD2HF

LM2540-9ERD3A

LM2540-9ERD3AF

LM2540-9ERD3AHF

LM2540-9ERD3H

LM2540-9ERD3HF

LM2540-9ERD4A

LM2540-9ERD4AF

LM2540-9ERD4AH