
CDP
Instruction Manual 11
3.5.- CONNECTION DIAGRAMS
Table 3: Equivalences between the single-phase and three-phase connection.
Equivalence between the single-phase and three-phase connection
Consumption from the grid
Power injected by the inverter
3.5.1. AUXILIARY POWER SUPPLY
The unit has terminals for supplying it either AC voltage (17-18) or DC voltage
(19-20):
Figure 3: AC and DC power supply connection.
3.5.2. COMMUNICATIONS CONNECTION
The CDP has three communications channels referred to as R1, R2 and R3.
Table 4: Description of the communications channels.
Description of the communications channels
Description of the channel
Ethernet communications channel
R2
Channel for communicating with the inverter:
RS422/RS485/RS232
R3
Channel for communicating with the external measuring parts:
RS485
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