MEAN WELL KNX-40E Switching Power supply User Manual

June 3, 2024
MEAN WELL

MEAN WELL KNX-40E Switching Power supply

KNX-40E Switching Power supply

Features

  • EIB / KNX power supply with integrated choke
  • Compact size with 4SU width(72mm)
  • Safety extra low voltage(SEL V)
  • Suitable for TP1 -256
  • 180~264VAC input
  • Protections: Short circuit / Overload(short-circuit-proof)/ Over voltage
  • Cooling by free air convection
  • Isolation class I
  • LED indicator for normal operation, bus reset and bus overload
  • Monitoring of output voltage, output current, bus traffic load and device temperature
  • Provide Wide variety of diagnostic and logic function
  • Over Voltage category III
  • 3 years warranty

Description

MEAN WELL. the leading standard power supply manufacturer. continues to promote the buiding automation technology for making a green and sustainable society. After the launch of KNX-20E- 640,the new KNX power supply KNX- 40E-1280(D) is proudly introduced. The KNX Power Supply KNX-40E-1280(D) is a 1280mA power supply with high efficiency and a small footprint of only 4SU(72mm).The device has a KNX bus choke output and additional output for auxiliary power. The -30~+ 70°C wide temperature operating range can meet all kinds of applications. For troubleshooting, monitoring purpose. output voltage, output current. bus traffic, device temperature and other actual measurement values can be sent via KNX.LED indicators are used in case of normal operation, overload conditions and RESET operation. It is perfectly suitable to power up any products labeled with the KNX trademark.

Model Encoding

Model Encoding

Type

|

Function

|

Note

---|---|---

Blank

|

1280mA KNX Power Supply

|

In Stock

D

|

1280mA KNX Power Supply with Diagnostic function

|

In Stock

Applications

Applications

  • Intelligent home control
  • Modern building automation
  • Lighting control
  • HV AC system
  • Security system
  • Blinds and shutters
  • Monitoring systems
  • Energy management
  • Alarm monitoring

GTIN CODE

MW Search: https://www.meanwell.com/serviceGTIN.aspx

SPECIFICATION

MODEL KN-X 40E-12800

OUTPUT

| BUS OUTPUTVOLTAGE WITH CHOKE| Bus,30V (KNX black/red terminal block)
DC OUTPUT VOLTAGE WITHOUT CHOKE| 30V(Additional output for ancillary power)
RATED CURRENT| 1280mA
RATED POWER| 38.4W
RIPPLE &NOISE/max.) Note2| 100mVp-p
SHORT CIRCUIT CURRENT| 2.8A
SETUP, RISETIME| 1OOOms, 50ms/230VAC a t full load
ACMAINS FA ILURE

BACK-UPTIME (Typ.)

| 200ms/230VAC a t full load

INPUT

| VOLTAGE RANGE| 180-264VAC        176- 280VDC
F R EQU E N C Y RANGE| 47 -63Hz
EFFICIENCY (Typ.) Note.3| 86%
AC CURRENT{Typ.)| 0.5A/230VAC
INRUSH CURRENT (Typ.)| COLDSTART 60A(twidth=1200µsmeasured at 50%Ipeak)/230VAC
LEAKAGE CURRENT| <1mA / 240VAC

PROTECTION

|

OVERLOAD

| 205- 235% rated output power
Protection type: Constant current limiting, recovers automatically after fault condition is removed

OVER VOLTAGE

| 33- 35V
Protection type: Hiccup mode, recovers automatically after fault condition is removed

FUNCTION

|

RESET

| Physical button for the bus reset:
Blank type: Press the RESET button for at least 20 seconds to reset the KNX Bus
D type: Press the RESET button once, it will reset the KNX Bus last for 20seconds automatically
LED INDICATORS| Please refer to the “Explanation of LED Status·
CHOKE| One Integrated choke

ENVIRONMENT

| WORKING TEMP.| -30- +70°C(Refer to “Derating Curve;
WORKING HUMIDITY| 20- 95%RHnon-condensnig
STORAGE TEMP,.HUMIDITY| -40- +ss•c, 10- 95% RH non-condensing
VIBRATION TYPE

OF PROTECTION

| 10 – 500Hz, 2G10min./1cycle, 60mni . each along X,Y,Z axes
TYPE OF PROTECTION| IP20design
OVER VOLTAGE CATEGORY| III According to BS EN/EN61558, BS EN/EN50178,altitudeup to 2000 meters

SAFETY &

EMC

(Note 4)

| SAFETY STANDARDS| BSEN/EN65158-1,BSEN/EN61558-2-16; BS EN/EN50491-3approved
WITHSTAND VOLTAGE| I/P-0 /P:4 2KVAC I/P-FG:2KVAC
ISOLATION RESISTANCE| I/-P 0/P, I/P-FG:100MOhms/ SOOVDC / 25°C/ 70%RH
EMC EMISSION| Compliance to BS EN/EN50491-5-2,-5-3;BSEN/EN61000-3-2,-3-3
EMC IMMUNITY| Compliance to BS ENIEN50491-52- ,-5-3; BSEN/EN60100-4-2,3.4,5,6,8,11h,eavyindustrylevel

OTHERS

| MTBF| 1414.2K hrs min. Telcordia SR-332(Beltcore) 217.1Khrsmin.      MIL-HDBK-217F(25°C)
DIMENSION| 72’90’57mm (W’ H’ D)
MOUNTING| 35mm mounting rail according to DIN BSEN/EN60715
PACKING| 0. 328Kg ; 48pcs/16.4Kg11.02CUFT
NOTE|

  1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature.
  2. Ripple & noise are measured at 20MHz of bandwidth by using a 12″ twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. Measure before Choke.
  3. Efficiency before choke
  4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on http://www.meanwell.com)
  5. The ambient temperature derating of 3.5°C/1 000m with fanless models and of 5°C/1 000m with fan models for operating altitude higher than 2000m(6500ft).
    Product Liability Disclaimer : For detailed information, please refer to https://WWW.meanwell.com/serviceDisclaimer.aspx

Block Diagram

Block Diagram

Derating Curve

Derating Curve

Static Characteristics

Static Characteristics 

Mechanical Specification

Blank-Type
Blank Type

1 KNX bus terminal (Red: +, DARK-GRAY:-)
2 Ancillary power termnials

D-Type

D-Type

1 KNX bus terminal (Red: +, DARK-GRAY:-)
2 Ancillary power termnials

Explanation of LED Status

Number

|

LED light

|

Color, Indicate type

|

Explanation / Range

---|---|---|---

A

|

Bus voltage V BUS

| Green, constant| KNX Bus voltage is 28~31VDC
Red, constant| KNX Bus voltage lower than 28VDC
Orange, constant| KNX Bus voltage higher than 31VDC

B

|

Output current I OUT

| Green, constant| Output current < 1280mA
Orange, constant| Output current is 1280mA~1600mA
Red, constant| Output current >1600 mA (Overload)

C

|

Power Input V IN

| Green, constant| Powered by AC input
Green, flash| Powered by DC input
Red, constant| AC/DC input fail

D

|

Internal Temperature

| Green, constant| Internal Temperature is 0~75 °C
Red, constant| Internal Temperature is out of this range

E

|

Telegram traffic

| Green, flash| Telegram load < 80 %
Red, constant| Telegram load >= 80 %
F| KNX Reset| Red, constant| Device is during a KNX bus restart
G| Programming| Red, constant| Device in Program mode

Note : Application data base needs to be downloaded into KNX-40E-1280D for the LED indicator to work properly.

Configuration and Commissioning

The application program(database) can be downloaded via Online Catalogs from ETS or via http://www.meanwell.com/productCatalog.aspx

Communication Object Table (Only for KNX-40E-1280D)

Num| Object name| Object function| Length| DPT| Priority| Flag
---|---|---|---|---|---|---
1| Heartbeat| Send info| 1bit| 1.017,trigger| Low| CRT
2| Power supply on| Send info| 1bit| 1.017, trigger| Low| CRT
3| Send measurements| Request all measurements value| 1bit| 1.001,switch| Low| CW
4| Clear all data| Reset all calculation data| 1bit| 1.001,switch| Low| CW
5| Send calculations| Request all calculations value| 1bit| 1.001,switch| Low| CW
6| Bus reset| Request bus reset| 1bit| 1.001,switch| Low| CWU
7| Total working time| Send current total working time value| 4byte| 13.100,time lag,(s)| Low| CRT
8| Time from last startup| Send operating time from last startup| 4byte| 13.100,time lag,(s)| Low| CRT
9| The number of bus restart times| Send bus reset times value| 2byte| 7.001,pulses| Low| CRT
10| The number of device startup times| Send device startup times value| 2byte| 7.001,pulses| Low| CRT
11| Output voltage measured| Send voltage value measured| 2byte| 9.20,voltage,(mV)| Low| CRT
4byte| 14.027,electric potential,(V)| Low| CRT
12| Output voltage alarm| Send threshold status| 1bit| 1.005,alarm| Low| CRT


13

| ****

Output current measured

| ****

Send current value measured

| 2byte| 7.012,current,(mA)| Low| CRT
2byte| 9.021,current,(mA)| Low| CRT
4byte| 14.019,electric current,(A)| Low| CRT
14| Output current alarm| Send threshold status| 1bit| 1.005,alarm| Low| CRT
15| Device temperature measured| Send temperature value measured| 2byte| 9.001,temperature,(°C)| Low| CRT
16| Device temperature alarm| Send threshold status| 1bit| 1.005,alarm| Low| CRT


17

| ****

Maximum output current during tracking period

| ****

Send maximum value captured

| 2byte| 7.012,current,(mA)| Low| CRT
2byte| 9.021,current,(mA)| Low| CRT
4byte| 14.019,electric current,(A)| Low| CRT


18

| Maximum device temperature during tracking period| ****

Send maximum value captured

| ****

2byte

| ****

9.001,temperature,(°C)

| ****

Low

| ****

CRT

19| Busload measured| Send busload value calculated| 1byte| 5.004,percentage,(0~255%)| Low| CRT
20| Busload alarm| Send threshold status| 1bit| 1.005,alarm| Low| CRT
21| The number of overload times| Send times count value| 2byte| 7.001,pulses| Low| CRT
22| Overload duration| Send duration time value| 4byte| 13.100,time lag,(s)| Low| CRT
23| The number of short circuits times| Send times count value| 2byte| 7.001,pulses| Low| CRT
24| Time load detached| Send duration time value| 4byte| 13.100,time lag,(s)| Low| CRT
25| Alarm 1| Send threshold status| 1bit| 1.005,alarm| Low| CRT
26| Count 1| Send times count value| 2byte| 7.001,pulses| Low| CRT
27| Duration 1| Send duration time value| 4byte| 13.100,time lag,(s)| Low| CRT
28| Alarm 2| Send threshold status| 1bit| 1.005,alarm| Low| CRT
29| Count 2| Send times count value| 2byte| 7.001,pulses| Low| CRT
30| Duration 2| Send duration time value| 4byte| 13.100,time lag,(s)| Low| CRT
31| Alarm 3| Send threshold status| 1bit| 1.005,alarm| Low| CRT
32| Count 3| Send times count value| 2byte| 7.001,pulses| Low| CRT
33| Duration 3| Send duration time value| 4byte| 13.100,time lag,(s)| Low| CRT
34| Alarm 4| Send threshold status| 1bit| 1.005,alarm| Low| CRT
35| Count 4| Send times count value| 2byte| 7.001,pulses| Low| CRT
36| Duration 4| Send duration time value| 4byte| 13.100,time lag,(s)| Low| CRT

The priority of the particular communication objects as well as the flags can be adjusted. The flag control the function of the objects in the programming where C stands for communication, R for Read, W for write, T for transmit and U for update.

Typical application

Application 1: Powering KNX Bus Only

Powering KNX Bus Only

Bus wiring consideration:

  1. the maximum number of bus devices connected is 256 for TP1-256
  2. the maximum length of a line segment is 350 m, measured along the line between the power supply and the furthest device
  3. the maximum distance between two bus devices cannot exceed 700
  4. the maximum length of a bus line is 1000 m, keeping into account all segments.
Application 2:Powering KNX Bus and KNX device

Powering KNX Bus and KNX device

Note :

  1. Use only ancillary output of KNX-40E-1280 to power the KNX device
  2. The total current + should be equal or less than 1280mA. + ≤1280mA
  3. The above Bus wiring consideration is still applicable

Recommended Screwdriver, Wire and Torque Setting

  1. Screwdriver(WidthThick):Slotted screwdriver 2.50.4~3.5*0.6
  2. Wire:0.5~4.0mm solid core or 0.5~2.5mm finely stranded
  3. Torque:0.8Nm

Installation Manual

Please refer to : http://www.meanwell.com/manual.html

References

Read User Manual Online (PDF format)

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