CDP
8
Application notes
The bus end terminal must always be connected to the last inverter of the RS-
485 communication bus.
The bus end terminal is a resistor that is built in the communications card of the
inverter. To activate it, the switch must be configured in the
ON
position.
Figure 4: Bus end terminal.
2.2.- INVERTER COMMUNICATION CONFIGURATION
The following describes how to use the display to configure the inverter for
ensuring correct communication with the
CDP
.
The AC and DC sides of the inverter must be connected to the mains before
it can turn on.
Consult the inverter manual if you have any doubts.
The configuration of the DELTA inverter parameters is done using the 4 buttons
on the front panel of the unit. (
Figure 5
)
Figure 5: DELTA inverter keyboard.
The parameters to be configured are:
Peripheral number ( Inverter ID), By default, this parameter has the value
01. If you have several investors have to change the numbers of periph-
eral to be different from each other.
In exceptional circumstances, if there are single-phase inverters in three-
phase installations, they must be numbered as shown in
Table 3
:
