Inverter; Sun2000-36Ktl : Communication Cable - Circutor CDP Series Application Notes

CDP
Example: if there are 6, 2kW single-phase inverters (2 in phase L1, 2 in phase
L2 and 2 in phase L3), the following must be configured:
• Inverter power: 12000W
• Number of inverters: 2
• Phase: three single phases
Whereas in the event of 3, 2kW single-phase inverters (1 inverter in each
phase), configuration must be as follows:
• Inverter power: 6000W
• Number of inverters: 1
• Phase: three single phases

3.- INVERTER

Communication between the CDP and inverter is via an RS-485 bus. This RS-
485 bus allows up to 100 inverters to be connected, although the majority of
domestic installations have between 1 and 3 inverters.

3.1.- SUN2000-36kTL : COMMUNICATION CABLE

List of communication cable terminals between the CDP and the inverter:
Table 2: List of communication cable terminals.
CDP
R2 channel communications
connector
Terminal Description
1
3
If several inverters are connected to the RS-485 bus, pins 2 and 4 must be wired
from the first inverter to pins 1 and 3 on the next, etc., until reaching the last
inverter on the bus.
Application notes
Terminal
TxD+ 1
TxD- 3
INVERTER
OUT connector (RJ45)
Description
RS485A, RS485 differential signal +
RS485B, RS485 differential signal -
7