Installation
4.2 Electrical Installation
Converter with the control units CU240D-2
50
Operating Instructions, 04/2018, FW V4.9 SP10, A5E34262100B AF
4.2.10
24-V power supply with multiple inverters
Installation using 24 V bus
The following options are available for the 24 V supply of the inverter:
1.
A T distributor with integrated power supply unit supplies the 24 V.
Advantage: Low installation costs.
2.
An external power supply unit supplies the 24 V.
Advantage: You can switch off the 400 V without interrupting the 24 V supply and thus
the fieldbus communication of the inverter.
The inverter can conduct a maximum current of 8 A through its 24 V connector.
Figure 4-10 24 V bus from T distributor or with separate power supply