Electrical Connection
SMA
Technologie AG
Page 30
SC-100-13:SE2407
Installation manual
7.1.5 Inverter Communication Connection
The device can be equipped with various interface cards (Net Piggy Back) for the
communication between the inverter and a PC or modem.
The data can be transferred using the following Net Piggy Back versions:
•
Analog
•
ISDN
•
Ethernet
•
GSM (combining Net Piggy Back Et GSM router)
The data cable is connected via the
NET
interface (RJ45 socket), see
figure 7.3
.
The length of the data lines must be taken into account when planning or establishing
the communication. An optimum and project-related plan for the data transfer should
be coordinated with SMA.
7.1.6 Shield Contact Handling Instructions
The external signal and bus cables must be shielded. The shield must contact the shield
rail, provided for this purpose, along a large surface area. Contact is achieved using
the shield clamps provided in the accessories kit. The correct handling of the shield
clamps is shown in the following figure. The shield clamps must only be hand-tightened,
never use a screwdriver. Screwing the clamps with a screwdriver can damage the cable
insulation.
Figure 7.5:
Handling the shield clamps (source: Wago)
Do not screw in the shield clamps with a screwdriver, hand-tighten only.
