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Installing the Communications Cable
Precautions
When routing communications cables, separate communications cables from power cables to prevent communication from being affected.
Pin Definitions of Communications Ports
Figure 5-19 Communications ports
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Port |
Pin |
Definition |
Pin |
Definition |
Description |
|---|---|---|---|---|---|
RS485-1 |
1 |
RS485A IN, RS485 differential signal+ |
2 |
RS485A OUT, RS485 differential signal+ |
Used for cascading inverters or connecting to devices such as the SmartLogger. |
3 |
RS485B IN, RS485 differential signal– |
4 |
RS485B OUT, RS485 differential signal– |
||
PE |
5 |
PE, shielding ground |
6 |
PE, shielding ground |
- |
RS485-2 |
7 |
RS485A, RS485 differential signal+ |
8 |
RS485B, RS485 differential signal– |
Used for connecting to RS485 slave devices. |
Procedure
- Install the communications cable.Figure 5-20 Cable connection (4–8 mm four-hole rubber plug)
Block unused cable holes using plugs and tighten cable glands.
Figure 5-21 Cable connection (4–8 mm two-hole rubber plug)- If three communications cables are to be connected, use the three-hole rubber plug that is bound in the maintenance compartment.
- Block unused cable holes using plugs and tighten cable glands.
