Ekinex EK-AM1-TP Manuale utente

KNX bus power supply 1280 mA with 30

Vdc auxiliary output

Product code: EK-AM1-TP

• Cooling by free air convection

Main characteristics

• Housing in plastic material

• Mounting on 35 mm rail (according to EN 60715)

• Protection degree IP20 (installed device)

• Isolation class I

• Safety class II

• Overvoltage cathegory III (according to EN 61558, EN

50178, altitude up to 2000 m. s.l.m.)

• 4 modular units (1 UM = 18 mm)

• Dimensions 72 x 90 x 70 mm (WxHxD)

• Weight: 296 g

Environmental conditions

• Operating temperature: - 30 ~ + 70°C

• Storage temperature: - 40 ~ + 85°C

• Working humidity: 20 ~ 95% RH not condensing

• Storage humidity: 10 ~ 95% RH not condensing

Technical data

Power supply

• Mains voltage range 180 ~ 264 Vac, 176 ~ 280 Vdc

• Frequency range 47 ~ 63 Hz

• Power consumption 38.4 W

• Input AC current (typical) 0.5 A @ 230 Vac

• Inrush current (typical): cold start 60 A (twidth=1200 µs

measured at 50% lpeak) @ 230 Vac

• Leakage current: < 1 mA @ 240 Vac

Outputs

• Bus line voltage: 30 Vdc SELV

• Auxiliary voltage: 30 Vdc SELV

• Rated current (total outputs): 1280 mA

• Short circuit current: 2.8 A

• Setup, rise time: 1000 ms, 50 ms @ 230 Vac at full load

• Ripple & noise (max): 100 mVp-p (*)

• AC mains failure back-up time (typical): 200 ms @ 230

Vac at full load

• Bus line connection: KNX terminal block (black/red) in-

cluded in delivery

• Auxiliary output connection: dedicated screw terminal

block

KNX device with function of power supply for a bus line

with auxiliary output. It has to be used in KNX installations

for control of homes and buildings.

Description

The ekinex®power supply EK-AM1-TP is a KNX device

for rail mounting which produces and monitors the 30 Vdc

voltage required to operate the bus system. It has a 30

Vdc additional output, which can be used as a SELV (sa-

fety extra low voltage) auxiliary power for bus devices.

The device has an integrated choke which provides the

decoupling between the power supply and the information

on the bus line. On a KNX bus line can be connected up

to 256 KNX bus devices. The output is protected from

overload, short circuit and overvoltage. The total current

absorbed by the two outputs (KNX bus and auxiliary) can-

not exceed 1280 mA. The device can support short inter-

ruptions of the mains voltage (max 200 ms at full load).

Functions

• 30 Vdc SELV power supply for a KNX bus line with max

256 connected devices (depending on the current con-

sumption of each device)

• Auxiliary power supply 30 Vdc

• Reset of the connected bus line with a dedicated pu-

shbutton

• LED indicators for normal operation, bus reset and bus

overload

• Protections: overload, short circuit, overvoltage

Datasheet STEKAM1TP_EN

Protections

• Overload: 205 ~ 235% rated output power. Protection

type: constant current limiting, recovers automatically

after fault condition is removed

• Overvoltage: 33 ~ 35 V. Protection type : Hiccup mode,

recovers automatically after fault condition is removed

Safety and EMC

• Safety standards: EN 61558-1, EN 61558-2-16; EN

50491-3

• Withstand voltage I/P-O/P: 4, 2KVAC I/P-FG: 2KVAC

• Isolation resistance: I/P-O/P, I/P-FG: 100 MΩ @ 500 Vdc

@ 25 °C @ 70% RH

• EMC emission: compliance to BS EN 50491-5-2, -5-3;

BS EN 61000-3-2, -3-3

• EMC immunity: compliance to BS EN 50491-5-2, -5-3;

BS EN 61000-4-2, 3, 4, 5, 6, 8, 11.

REAEKAM1TP

(*) Note: Ripple & noise are measured al 20 MHz of bandwidth

by using a 12’’ twisted pair-wire terminated with a 0,1 μF and 47

μF parallel capacitor. The measure is done before the decoupling

choke.

Mounting

The device has degree of protection IP20, and is the-

refore suitable for use in dry interior rooms. The hou-

sing is made for rail mounting according to EN 60715

in boards or cabinets for electrical distribution. The

installation is in horizontal position, the correct posi-

tion is when the terminals for KNX bus line and auxi-

liary output are located at the bottom and the terminals

( , L, N) for connecting the input mains power supply

Vac, Vdc are located at the top. For the installation of the

device on the rail proceed as follows:

For the installation of the device on the rail proceed as

follows:

• with the aid of a tool bring the locking device in the

fully lowered position (a);

• place the upper edge of the rear inner prole on the

upper edge of the rail (b);

• rotate the device towards the rail (c);

• push the locking device upward until it stops (d).

At the same bus line can be connected not more than two

power supplies. A second power supply may be necessa-

ry when the installation in distribution boards requires a

particular concentration of the bus devices (tipically more

than 30 units installed within 10 m). In this case a po-

wer supply has to be installed near the group of devices.

Between two power supplies installed on the same bus

line a minimum distance of 200 m is required, measured

along the line.

Planning

Planning a KNX bus installation, the use of a 1280 mA po-

wer supply unit requires to take into account the following

guidelines:

• the maximum number of bus devices connected is

256;

• the maximum length of a line segment is 350 m, me-

asured along the line between the power supply and

the furthest bus device;

• the maximum distance between two bus devices can-

not exceed 700 m;

• the maximum length of a bus line is 1000 m, keeping

into account all segments.

Switching, display and connection elements

The device is equipped with a reset pushbutton, 3 LEDs

and terminal blocks for mains voltage 180 ~ 264 Vac (or

176 ~ 280 Vdc), KNX bus line and auxiliary output.

The LEDs behaviour is as follows:

a b

EKINSTGUIDAEKAM1TP

Warning! In order to supply the KNX bus lines use

only KNX bus power suppliers. The use of dierent

power suppliy units can compromise the communi-

cation and damage the devices connected to the

bus.

Note. When mounting the device in boards and ca-

binets it shall be provided the necessary ventilation

so that the temperature can be kept within the ope-

rating range of the device.

1) Terminal blocks for input power supply 180 ~ 264 Vac, 176 ~ 280 Vdc

2) Reset pushbutton

3) Reset LED (red)

4) Terminal block for KNX bus line

5) Terminal block for auxiliary 30 Vdc output

6) KNX output voltage LED (green/orange/red)

7) Output current LED (green/orange/red)

5 467

LED Type LED colour /

display

Meaning

3 KNX reset Red / solid KNX bus restart

6 KNX output

voltage, Vbus

Green / solid 28 < Vbus < 31 Vdc

Orange / solid Vbus < 28 Vdc

Red / solid Vbus > 31 Vdc

7 Output cur-

rent, I > Imax

Green / solid I < 1280 mA

Orange / solid I = 1280mA ~ 1600mA

Red / solid I > 1600mA (overload)

Note. It is recommended that the installation of the

device always ensure the full accessibility of the

front side to allow the operation of the pushbuttons.

KNX bus line

The connection to the KNX bus line is made with the ter-

minal block (black/red) included in delivery and inserted

into the slot located on the left bottom part of the front.

Characteristics of the KNX terminal block:

• spring clamping of conductors

• 4 seats for conductors for each polarity

• terminal suitable for KNX bus cable with single-wire

conductors and diameter between 0.6 and 0.8 mm (20

~ 22AWG)

• recommended wire stripping approx. 5 mm

• color codication: red = + (positive) bus conductor,

black = - (negative) bus conductor

Auxiliary output

The 30 Vdc auxiliary output has a dedicated connection

screw terminal block.

Characteristics of the terminal block for the auxiliary ou-

tput:

• screw clamping of conductors

• conductor wiring size: solid 0.5 ~ 4.0 mm2 or stranded

0.5 ~ 2.5 mm2 (12 ~ 26AWG)

• recommended wire stripping approx. 6 mm

• torque max 0.8 Nm

For the connection of the auxiliary output and the powe-

red devices it is recommended to use a cable with a she-

ath of a di󰀨erent color than the cable connecting the KNX

bus line.

Warning! The electrical connection of the device

can be carried out only by qualied personnel. The

incorrect installation may result in electric shock or

re. Before making the electrical connections, make

sure the power supply has been turned o.

Note. The conguration and commissioning of KNX

devices require specialized skills. To acquire these

skills, you should attend the workshops at KNX cer-

tied training centers.

Before removing the device, be sure the inputs have been

disconnected and the bus terminal has been extracted

from its slot. Use a screwdriver to slide down the locking

device and remove the device from the rail.

Electrical connections

Input main supply

The connection to the input main supply 180 ~ 264 Vac,

176 ~ 280 Vdc is made with screw terminals ( , L, N)

located on the upper front of the device.

Characteristics of the terminal blocks:

• screw clamping of conductors (use a slotted screwdri-

ver 2.5*0.4-3.5*0.6)

• Conductor wiring size: 0.5 ~ 4.0 mm solid core or 0.5 ~

2.5mm nely stranded

• recommended wire stripping approx. 6 mm

• torque max 0.8 Nm

Conguration and commissioning

Conguration

The device does not require any conguration with ETS®

(Engineering Tool Software) tool. The application softwa-

res APEKAM1TP##.knxprod (## = version) is available in

order to add the power supply to an ETS project.

Commissioning

For the commissioning of the device turn on the input

mains power supply to which the device is connected.

The LED marked “Vbus” solid green indicates the device

operating in the normal range.

Reset

The device has a reset pushbutton. By keeping it pressed

for at least 20 seconds, the bus line is not powered for

20 seconds and the bus devices connected are restored

to their original condition. During this interval of time the

reset LED (red) is turned permanently on.

Failure

When the LED labeled “I > Imax”, is turned on solid oran-

ge or red, this means that the KNX output is overloaded or

short-circuited. The problem can be solved by removing

the cause of the short circuit or by reducing the number of

KNX devices connected to the line. After the removal of

the problem only the green LED “Vbus” is turned on, at this

time it is recommended to reset the line.

V input

AUX

30Vdc

Bus

KNX

Disposal

At the end of its useful life the product

described in this datasheet is classied

as waste from electronic equipment in

accordance with the European Direc-

tive 2012/19/UE (WEEE recast), and

cannot be disposed together with the

municipal undi󰀨erentiated solid waste.

Marks

• KNX

• CE: the device complies with the Low Voltage Directi-

ve (2014/35/EU) and the Electromagnetic Compatibility

Directive (2014/30/EU).

• Tests carried out according to BS EN 61558-

1:2005+A1:2009, BS EN 61558-2-16:2009+A1:2013,

BS EN 50491-5-2:2010, BS EN 50491-5-3:2010, BS

EN 61000-3-2:2014, BS EN 61000-3-3:2013, BS EN

61000-4-2, 3, 4, 5, 6, 8, 11

Maintenance

The device is maintenance-free. To clean use a dry cloth.

It must be avoided the use of solvents or other aggressive

substances.

Dimensions [mm]

Documentation

This datasheet refers to the release A1.0 of the ekinex®

device EK-AM1-TP and it is available for download at

www.ekinex.com as a PDF (Portable Data Format) le.

Warnings

• Installation, electrical connection, conguration and

commissioning of the device can only be carried out

by qualied personnel in compliance with the appli-

cable technical standards and laws of the respective

countries

• The use of the device in security applications is not

allowed.The device may however be used for auxiliary

signaling functions

• Opening the housing of the device causes the imme-

diate end of the warranty period

• In case of tampering, the compliance with the essen-

tial requirements of the applicable directives, for which

the device has been certied, is no longer guaranteed

• ekinex®KNX defective devices must be returned to the

manufacturer at the following address: EKINEX S.p.A.

Via Novara 37 I-28010 Vaprio d’Agogna (NO) Italy

Other information

• This datasheet is aimed at installers, system integra-

tors and planners

• For further information on the product, please contact

the ekinex®technical support at the e-mail address:

[email protected] or visit the website www.ekinex.

com

• Each ekinex®device has a unique serial number on

the label. The serial number can be used by installers

or system integrators for documentation purposes and

Warning! Incorrect disposal of this product may

cause serious damage to the environment and hu-

man health. Please be informed about the correct

disposal procedures for waste collecting and pro-

cessing provided by local authorities.

File name Device release Updating

STEKAM1TP_EN.pdf 1.0 04 / 2022

-V +V

has to be added in each communication addressed to

the EKINEX technical support in case of malfunctio-

ning of the device

• KNX®and ETS®are registered trademarks of KNX

Association cvba, Brussels

documentation without notice.

Annex 1 - Powering KNX bus only

Bus

KNX

V input

Lightning

device

HVAC

device

Blind / Shutter

actuator Other devices

-V +V -V +V

Bus wiring consideration:

• the maximum number of bus devices connected is 256

for TP1-256 topology;

• the maximum length of a line segment is 350 m, mea-

sured along the line between the power supply and the

furthest device bus;

• the maximum distance between two bus devices can-

not exceed 700 m;

• the maximum length of a bus line is 1000 m, keeping

into account all segments;

• It is possible to connect two EK-AM1-TP in parallel with

the following conditions: two chokes installed in one

line with at least 200m apart.

Annex 2 - Powering KNX bus and KNX devices

Bus

KNX

V input

-V +V

• Use the auxiliary output of EK-AM1-TP only to power

the KNX device;

• The totaI current I1+I2should be equaI or less than 1280

mA;

• The above bus wiring consideration (Annex 1) is still

applicable.

Lightning

device

HVAC

device

Blind / Shutter

actuator Other devices

Annex 3 - Block diagram

Annex 4 - Characteristics

Derating curve Static characteristics

Indice

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