Commissioning Instructions

Safety notes
1
10 | 36
Restricted 2022-01-28
A6V11604303_en--_e
CAUTION
DC 24 V power supply specification
Designed for 100% duty to supply SELV or PELV electrical circuits.
USA: Class 2 circuits per UL 5085-3.
Power taken from the transformer is at least 50% of nominal load for efficiency
reasons (effectiveness).
CAUTION
Operational voltage fuse AC 24 V
Transformers on the secondary side correspond to the actual load of all
connected devices as per transformer sizing:
AC 24 V line (system potential) must always be fused.
Where required, also fuse line ⊥ (system neutral).
CAUTION
Operational voltage fuse DC 24 V
DC 24 V power are short-circuit proof or have internal fuses.
Comply with all local regulations.
CAUTION
Mains fuse
Transformers / DC 24 V power on the primary side: Panel fusing (control fuse)
CAUTION
Power over Ethernet (PoE) PoE
Desigo touch panels require power for PoE+ Class 4 (max. 600 mA / 25.5 W). It
must comply with IEEE 802.3at-2009.
Comply with manufacturer guidelines on power to the PoE switches.
CAUTION
Caution with regard to foreign voltages
Any insertion or drawing of dangerous voltages to the system's low-voltage circuit,
e.g. caused by improper wiring, directly places people at risk and may result in
the partial or complete destruction of the building automation and control system.