5
Installation and Commissioning
Power Supply Systems KNX PS640+ and KNX PS640+USB
Version: 19.08.2020 • Technical changes and errors excepted.
2.2. Installation
Observe the correct installation. Incorrect installation may destroy the power supply
system or connected electronic devices.
After the auxiliary voltage is applied the device will enter an initialisation phase lasting
5 seconds. During this phase no information can be received via the bus.
2.2.1. Housing
2
Fig. 1
1
Bus voltage power
OUT (KNX te / -)
2
Programming LED and
programming bushbutton
3
Bus data (KNX terminal
+ / -), connection for line
or main line or sector
4
Input operating voltage
230 V AC, L / N / PE
5
USB interface
(only KNX PS640+USB)
6
Output direct current voltage
24 V DC, + / -
Connections 4 and 6 are suitable for
solid conductors up to 1.5 mm² or con
-
ductors with fine wires.
4
1
3
5 6