Connecting Communication - ABB Relion 650 Series Installation Manual

Section 6
Connecting
No damage will occur when the plug is inserted 180 degrees turned.
110-250 VDC
100-240 VAC
48-125 VDC
GUID-C2321B6B-3157-4F0A-AD25-ACE8E71C4462 V2 EN-US
Figure 18: Connecting the auxiliary voltage connector
6.6

Connecting communication

Before connecting communication, check that the HW module has the correct communication
interfaces. The communication module is located on the left side of the IED when viewing the case
from the rear.
The fiber optical cables are very sensitive to handling. Do not bend too sharply. The minimum
curvature radius is 250 mm for the glass fiber cables. If cable straps are used to fix the cables,
apply with loose fit.
Always hold the connector, never the cable, when connecting or disconnecting optical fibers. Do
not twist, pull or bend the fiber. Invisible damage may increase fiber attenuation thus making
communication impossible. Strictly follow the instructions from the manufacturer for each type of
optical cables/connectors.
38
Correct / 180 degrees wrong
1 2 3
The input has a rectifier bridge
Correct
1 2 3
180 degrees wrong
1 2 3
No problem, contact open
See the technical manual for product-specific communication interfaces.
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1MRK 514 014-UUS A
GUID-ABE5A9D7-4292-4AE3-A8B7-0C52F54E754E v7
650 series
Installation manual