ABB Relion 620 Series - Binary and Analog Connections; Communication Connections

13.2 Protective earth connections
Figure 627: The protective earth screw is located between connectors X100 and
X105
The earth lead must be at least 6.0 mm
2
and as short as possible.
13.3 Binary and analog connections
All binary and analog connections are described in the product specific
application manuals.
13.4 Communication connections
The front communication connection is an RJ-45 type connector used mainly for
configuration and setting.
• Galvanic RJ-45 Ethernet connection
• Optical LC Ethernet connection
• ST-type glass fiber serial connection
• EIA-485 serial connection
• EIA-232 serial connection
Never touch the end face of an optical fiber connector.
IED physical connections 1MRS757644 H
1174 620 series
Technical Manual