3
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 codification: 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 different color than the cable connecting the KNX
bus line.
Warning!
The electrical connection of the device
can be carried out only by qualified personnel. The
incorrect installation may result in electric shock or
fire. Before making the electrical connections, make
sure the power supply has been turned off.
!
Note.
The configuration and commissioning of KNX
devices require specialized skills. To acquire these
skills, you should attend the workshops at KNX cer
-
tified training centers.
i
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 finely stranded
• recommended wire stripping approx. 6 mm
• torque max 0.8 Nm
Configuration and commissioning
Configuration
The device does not require any configuration 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 “V
bus
” is turned on, at this
time it is recommended to reset the line.
L
N
PE
+
-
V input
AUX
30Vdc
Bus
KNX
+
-
