5.6 Connecting power supply
The permitted auxiliary voltage range of the protection relay is marked on top of
the protection relay's LHMI.
• Connect the protection relay's auxiliary voltage to terminals X100-1 and X100-2.
• Connect the positive lead to terminal X100-1.
Figure 47: Connecting auxiliary voltage
5.7 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 protection relay
when viewing the case from the rear.
See the technical manual for product-specific
communication interfaces.
1MRS757641 G Connecting
620 series
Installation Manual
57
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