WAGO 750 Series Manual page 53

WAGO-I/O-SYSTEM 750
753-647 DALI Multi-Master
Do not connect another power supply to the DALI bus when powering the
DALI network subscribers via the integrated DALI Multi-Master's power
supply unit
No other power supply must be active on the DALI bus when indirectly powering
the DALI network subscribers via the DALI Multi-Master Module (753-647) (e.g.,
when using a DALI Multi-Master Module DC/DC converter (753-620) or the
power supply unit for DALI Multi-Master Module (787-1007)). Otherwise, it is not
possible to address the DALI network subscribers.
EMC regulations comply by DIN rail grounding!
In order to meet the EMC regulations, the DC/DC converter must be connected
to ground using the appropriate FE-connection on the rail.
Required Accessories
A suitable DALI power supply unit is required for the 18 V power supply to the
DALI network via the DALI Multi-Master Module (753-647). This provides for
reliable electrical isolation between the DALI bus and local bus that is required
for installation of 230 V electrical loads. DALI Multi-Master Module DC/DC
converter (753-620) or the power supply unit for DALI Multi-Master Module (787-
1007) are suitable.
The length of power supply cable between WAGO power supply (787-1007) and
DALI Multi-Master Module (753-647) may be 1 m maximum.
The power supply cable must also be shielded when used in marine applications.
Connect Devices 53
Manual
Version 1.4.3