Power Supply Configuration For 753-620 - WAGO 753-647 Manual

46 Connect Devices
6.2.2.1

Power Supply Configuration for 753-620

If you use a 753-620 DC/DC converter for power supply, exactly one DALI
Multi-Master module can be supplied with power.
Figure 20: Configuration diagram for the 753-620 DC/DC converter with one DALI-Multi-Master
module
Power must be supplied by a second, or by a maximum of a third 753-620 DC/DC
converter to provide proper power supply to further DALI-Multi-Master modules
at the fieldbus node.
In this configuration ensure that the DC/DC converters are initially installed
adjacently in groups, as they pass on potential via power jumper contacts. Each of
the DALI Multi-Master modules are then wired individually to the power supply
terminals (see figure below).
Figure 21: Configuration diagram for three 753-620 DC/DC converters with three DALI-Multi-
Master modules
The 787-1007 power supply unit can be used when more than three DALI-Multi-
Master modules are installed at one fieldbus node.
WAGO-I/O-SYSTEM 750
753-647 DALI Multi-Master Module
Version 1.0.0
Manual