ABB Relion 620 Series - Connecting Analog Signals; Connecting Current and Voltage Inputs

5.4 Connecting analog signals
A connection diagram is needed to connect the analog signals.
When using the ring-lug type for CT/VT terminals, follow these steps.
1. Remove the fixing screw.
2. Slide the screw through the terminal lug and screw it back on.
5.4.1 Connecting current and voltage inputs
• Connect the wires from the CTs/VTs to the correct device according to the
phase order and the connection diagram.
• Each terminal X115/X120 for CTs/VTs is dimensioned for one 0.5...6.0 mm
2
wire or for two wires of maximum 2.5 mm
2
.
• Each terminal X130 for VTs is dimensioned for one 0.5...2.5 mm
2
wire.
See the application manual for the terminal diagrams and
the combinations of I/Os.
AIM0004
X115
1
2
3
4
5
6
7
8
9
10
11
12
14
IoB
IL1B
IL2B
IL3B
1/5A
N
1/5A
N
1/5A
N
1/5A
N
13
U_SYN
U_AVR
Uo
60 -
N
210V
60 -
N
210V
60 -
N
210V
Figure 31: Example of AIM0004 card variant (4 I + 3 U with 1/5 A Io channel)
Connecting
1MRS757641 G
46 620 series
Installation Manual