BEL Melcher LXN1240-6M1G Manual Download

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BCD20021-G Rev AF, 29 November 2021

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X Series

375, 500 Watt AC-DC and DC-DC DIN-Rail Converters

Description of Options

Single options D1, D2, D5, R

are available on the AUX1 terminal (10), referenced to Vo– or Vo2–.

Option M1

and

designate a combination of several options accessible via a D-SUB connector or in some cases on the AUX1

and AUX2 terminals. Option M1 includes the function SD.

Note:

In double-output models, the options D1, D5, R, and SD concern only output 2 connected to terminals 6, 7, 8, and 9.

Single Options Using the AUX1 Pin

The connection is shown in the figure below. For the description refer to

Adjustment of V

or V

(

next section).

AUX1

11
10

9
8
7
6
5
4
3
2

Adjustment with

ext

AUX1

11
10

9
8
7
6
5
4
3
2

Adjustment with

ext

Vo2+

or Vo+

Vo2–

or Vo–

ext1

ext2

ext

Vo2–

or Vo–

06160a

AUX2

Fig. 17

Connection of adjust resistors or an external voltage source to adjust the output voltage V

or V

(option M1 or M2 not fitted)

Multiple Options M1 or M2

The option board is suitable for applications, where several options are needed. Option M1 is standard for battery charger models,

option M2 is suitable for applications without battery or for simple applications with battery.
In general, the multiple options M1 or M2 are connected to an additional D-SUB connector. Some signals (but not option R) can

also be connected to AUX1 and AUX2, if the D-SUB connector is not suitable to the customer.

Table 15: Pin allocation of the 9 pin D-SUB connector

Pin

Designation

Description

GND1

System ground / common signal return

R input

VCC

Positive supply voltage (

≈

output 2)

Output voltage monitor

o low D1

Output 2 voltage monitor

o low D5

Shutdown

D-adj

Adjustment of threshold values of D1 or D5

Input voltage monitor

i low

Sys-OK

System okay (all outputs are okay)

Do not connect GND1 (pin 1) with the neg. output (–)

Do not connect VCC (pin 3) with the positive output (+)

In double-output models, R, D1, D5, SD concern output 2 only.

Summary of Contents for Melcher LXN1240-6M1G

Page 1: ...EN 55011 55032 Very high efficiency up to 89 Short term output peak power capability rectangular current limiting characteristic Single or two independently regulated outputs with 24 36 or 48 V Outputs no load overload and short circuit proof PCBs protected by lacquer Very high reliability Safety according to IEC EN 62368 1 UL CSA 60950 1 Table of Contents Description 2 Model Selection 2 Functiona...

Page 2: ...tic drives connected directly to the output A green LED at the front cover displays the status of the output s The Convert Select Series was designed according to all relevant international safety standards Adequate clear ances and creepage distances allow operation in pollution degree 2 environment All board assemblies are coated with a protective lacquer The thermal concept allows operation at f...

Page 3: ... approx 2 better Not for new designs NFND or End of Life EOL Part Number Description L X N 2 6 60 6 D2 F K2 G Input voltage range L Series X Nominal output power 325 W R 500 W N Number of outputs 1 2 Type specification 000 999 Operational ambient temperature range TA 40 to 60 C 6 EW or customer specific 0 5 Options Output voltage control input 1 R Save data signal 1 D1 D2 D5 Multiple functions via...

Page 4: ...active power factor correction forcing the input current to follow the input voltage waveform The secondary side of each main transformer supplies via the rectifier diode a large electrolytic output storage capacitor providing for the hold up time Double output models exhibit an individual control logic for each output The output voltage and the output current are measured and fed back to the prim...

Page 5: ...ut filter Vo Io control Output filter 2nd control loop ES1 Control circuit including PFC and input OVP UVP Vo Vo Cy Cy Cy Shunt Shunt 4 5 2 3 Input filter Vo Io control Output filter 2nd control loop ES1 Control circuit including PFC and input OVP UVP Vo Vo Cy Cy Cy Aux1 Shunt Shunt 8 9 6 7 12 10 Aux2 11 1 L N 2nd fuse option F Rectifier Fig 2 LXN 500 W double output converter For the pinout of 50...

Page 6: ...ating at low input voltage and or high case temperature TC see Output Power Derating 3 Vi 250 VDC for models with option F Output Power Derating The output power of LX models must be decreased at low input voltage and or powertrain temperature above 125 C The powertrain temperature depends on the output power the input voltage and the cooling method At low input voltage the losses increase At the ...

Page 7: ... and Protection A slow blow fuse Schurter T10A 5 20 mm protected by a sleeve is connected in the line input For DC input voltages above 250 V an external DC fuse or a circuit breaker must be installed observe the Installation Instructions Converters with option F have 2 fuses one in each input line The D C input voltage for all converters with option F is limited to 250 V A VDR and a symmetrical i...

Page 8: ...5 37 28 49 1 49 4 49 7 Vo worst Output voltage range of tolerance Vi min Vi max Io 0 1 1 Io nom 24 0 25 8 36 0 38 7 48 0 51 6 Vo L Overvoltage protection 28 5 30 42 75 45 57 60 Po nom Nominal output power Vi 100 V Vi max 371 371 371 W Io nom Output current nominal Vi 100 V Vi max 15 10 7 5 A Io L Output current limit 3 Vi 100 V Vi max 15 1 17 2 10 1 11 4 7 57 8 7 Iop Output current boost 4 typ 1 s...

Page 9: ...00 700 700 ms toh min Hold up time Io nom Vo nom 0 8 Vo nom 15 20 25 Table 6c Output data of 500 Watt double output models General conditions as per table 6a Model LXN2660 LXN2770 LXN2880 Unit Characteristics Conditions min typ max min typ max min typ max Vo nom Output voltage nominal1 Vi nom Io nom 24 25 24 7 25 2 36 37 37 05 37 8 48 5 49 4 50 4 V 24 55 24 7 24 85 36 82 37 05 37 28 49 1 49 4 49 7...

Page 10: ... 80 80 ms α vo Temperature coefficient TC min TC max 0 02 0 02 0 02 K tor Start up time Vi 0 Vi nom Io nom 700 700 700 ms Table 7b Output data of 500 Watt battery charger models General conditions as per table 7a Model LXN1240 6M1 LXN1840 6M1 LXN1740 6M1 Unit Characteristics Conditions min typ max min typ max min typ max Vo safe Output setting voltage 1 Vi nom Io nom 24 5 25 68 26 3 36 75 38 52 39...

Page 11: ...s Use wires with equal length and equal cross sections of min 1 5 mm2 The best results for parallel operation can be achieved with the wiring shown in fig 6 Parallel operation of single output models using option R output voltage adjust is possible but not recommended Refer to fig 6 the connections between the pins 8 and 9 both Vo should be as short as possible Note Parallel operation is not possi...

Page 12: ...thin the limits stated in the table Temperaturespecifications Note Sufficient forced cooling allows TA to be higher than TA max provided that TC max is not exceeded It is recommended that continuous operation under worst case conditions of the following 3 parameters be avoided Minimum input voltage maximum output power and maximum temperature Battery Charging and Temperature Sensor The battery cha...

Page 13: ...0 Ω 0 15 80 MHz yes A Powerfrequency magnetic field IEC EN 61000 4 8 9 100 A m 50 and 60 Hz x y and z axis yes A 1 i input o output c case 2 A Normal operation no deviation from specs B Normal operation temporary loss of function or deviation from specs possible 3 Exceeds EN 50121 3 2 2016 table 5 3 and EN 50121 4 2016 table 2 4 4 Corresponds to EN 50121 3 2 2016 table 5 1 and EN 50121 4 2016 tabl...

Page 14: ...duration 11 ms 6000 bumps 1000 in each direction Fc Vibration sinusoidal IEC EN 60068 2 6 MIL STD 810D sect 514 3 Acceleration amplitude 0 35 mm 10 60 Hz Converter operating wall mounted 1 Frequency 1 Oct min 5 gn 49 m s2 60 2000 Hz Test duration 7 5 h 2 5 h each axis Acceleration amplitude 0 25 mm 10 60 Hz Converter operating on DIN rail 2 Frequency 1 Oct min 2 gn 19 m s2 60 2000 Hz Test duration...

Page 15: ...bar Model Standard models 6 Unit Characteristics Conditions min max TA Ambient temperature Converter operating1 40 60 C TC Case temperature 2 40 90 2 TS Storage temperature Non operational 40 85 1 See Thermal Considerations 2 See table 5 Po derating Failure Rates Table 12 MTBF Values at specified case temperature Module types Ground benign 40 C Ground fixed Ground mobile 50 C Unit 40 C 70 C MTBF 1...

Page 16: ...6 4 2 113 6 4 47 15 0 59 213 8 8 42 194 7 64 33 1 3 49 1 93 S09127d 199 7 83 Wall mounting brackets accessories Measuring point for case temperature TC TA TA TC 40 1 6 13 0 51 29 4 1 16 43 1 69 31 1 22 LED x axis z axis vertical European Projection Option M Option M female connector D SUB male con nector Option M female connector Fig 13 Case X01 LXR weight approx 2600 g LXN weight approx 2800 g Ca...

Page 17: ...l installers The installation must strictly follow the national safety regulations in compliance with the enclosure mounting creepage clearance casualty markings and segregation requirements of the end use application DIN rail mounting is possible with the built in snap fit device on a DIN rail This fulfills the mechanical transport re quirements as per ETSI 300019 1 2 class 2 vertical To fulfill ...

Page 18: ...ral terminal N or option F is needed if Local requirements demand an individual fuse in each source line Neutral and earth impedance is high or undefined Phase and neutral of the mains are not defined or cannot be assigned to the corresponding terminals L to phase and N to neutral Models with option F Caution Double pole neutral fusing If the converter operates at source voltages above 250 VDC an ...

Page 19: ...ot honor warranty claims resulting from incorrectly executed electric strength field tests Table 14 Isolation Characteristics Input to Case and Output s Output s to Case Output 1 to Output 2 and AUX Unit Electric strength test Factory test 1 s 2 8 1 1 4 0 5 kVDC AC test voltage equivalent to factory test 2 0 1 0 0 35 kVAC Insulation resistance 300 2 300 2 100 MΩ 1 Subassemblies are pretested with ...

Page 20: ...djust resistors or an external voltage source to adjust the output voltage Vo or Vo2 option M1 or M2 not fitted Multiple Options M1 or M2 The option board is suitable for applications where several options are needed Option M1 is standard for battery charger models option M2 is suitable for applications without battery or for simple applications with battery In general the multiple options M1 or M...

Page 21: ...ector max 50 V When Vi is greater then said level the signal output D2 is conducting VD2 1 5 V ID2 max 50 mA 5 6 Power Fail D SUB 06162a 1 11 10 9 8 7 6 5 4 3 2 D2 AUX1 1 11 10 9 8 7 6 5 4 3 2 Vo2 or Vo Vo2 or Vo AUX2 12 12 5 6 Power Fail D2 D SUB VCC 06140a 4 3 2 1 9 8 7 4 3 2 1 9 8 7 Fig 18 Option D2 Examples of relay control to monitor a power failure D1 Output Voltage Monitor D1 is intended fo...

Page 22: ...led switch off of running processes Adjustment of Threshold Levels D1 or D5 Pin 7 of the D SUB connector allows for adjustment of the threshold levels of D1 and D5 Both levels are influenced by the voltage divider Rx Ry Resistor Rx to pin 3 VCC lowers the levels whereas Ry to pin 1 GND1 increases them see fig 19 1 2 3 4 5 6 7 8 9 D SUB female 06148b Rx Change threshold Ry VCC GND1 D adj Fig 19 Wir...

Page 23: ... or Vo2 Vo nom a Adjustment by an external resistor Resistor Rext1 connected between R pin 2 and GND1 pin 1 of the D SUB connector or according to fig 20 Vo Vo 50 100 Vo nom Rext1 4 kΩ __________ Vo nom Vo Resistor Rext2 connected between R pin 2 and VCC pin 3 of the D SUB connector or according to fig 17 Vo 2 5 V Vo 100 110 Vo nom Rext2 4kΩ _________________ 2 5 V Vo Vo nom 1 Note If the R functi...

Page 24: ...vailable with system connectors They are UL listed approved for currents up to 15 A at 40 to 105 C The mating system connectors with screw terminals and retainers are delivered together with every converter with option K2 Use max 2 5 mm2 AWG 12 solid or stranded wires or max 1 5 mm2 AWG 14 stranded wires with crimp termination stripped length 6 mm Tightening torque of input output terminals max 0 ...

Page 25: ... use a set of brackets HZZ00624 G DMB EWG For heavy duty application 2 sets 4 brackets are pre ferable 49 33 0 5 4 2 8 18 3 12055 10068 Fig 22 Wall mounting with mounting brackets HZZ00618 G Fig 23 DIN rail fixing bracket HZZ00624 G DMB EWG Protective Covers over Terminals Protective covers are available to avoid touching of the terminals HZZ01220 G contains in a bag a plastic cover with length A ...

Page 26: ...voltage nom V Sensor type Cell volt age V Cell temp coefficient mV K Cable length m 12 S KSMH12 2 27 30 2 2 27 3 0 2 12 S KSMH12 2 27 35 2 2 27 3 5 2 24 S KSMH24 2 27 30 2 2 27 3 0 2 24 S KSMH24 2 27 35 2 2 27 3 5 2 24 S KSMH24 2 31 35 0 2 31 3 5 4 5 24 S KSMH24 2 31 35 2 2 31 3 5 2 24 S KSMH24 2 35 35 2 2 35 3 5 2 48 S KSMH48 2 27 30 2 2 27 3 0 2 48 S KSMH48 2 27 35 2 2 27 3 5 2 For additional ac...

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