ABB Relion SMU615, Applications Manual

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3.4.2.1 Default I/O connections
Connector pins for each input and output are presented in the Merging unit's
physical connections section.
Table 15: Default connections for analog inputs with AIM0013
Analog input Default usage Connector pins
IL1 Phase A current IL1 X120:7,8
IL2 Phase B current IL2 X120:9,10
IL3 Phase C current IL3 X120:11,12
Io Residual current X120:13,14
U1 Phase-to-earth voltage UL1 X120:1,2
U2 Phase-to-earth voltage UL2 X120:3,4
U3 Phase-to-earth voltage UL3 X120:5,6
Table 16: Default connections for analog inputs with SIM0002
Analog input Default usage Connector pins
IL1 Phase A current IL1 X131:4,5
IL2 Phase B current IL2 X132:4,5
IL3 Phase C current IL3 X133:4,5
Io Residual current X130:1,2
U1 Phase-to-earth voltage UL1 X131:7,8
U2 Phase-to-earth voltage UL2 X132:7,8
U3 Phase-to-earth voltage UL3 X133:7,8
Table 17: Default connections for analog inputs with SIM0005
Analog input Default usage Connector pins
IL1 Phase A current IL1 X131 L1/A:1,2
IL2 Phase B current IL2 X132 L2/B:1,2
IL3 Phase C current IL3 X133 L3/C:1,2
Io Residual current X130 I0:1,2
U1 Phase-to-earth voltage UL1 X131 L1/A:7,8
U2 Phase-to-earth voltage UL2 X132 L2/B:7,8
U3 Phase-to-earth voltage UL3 X133 L3/C:7,8
Merging unit variants 1MRS758580 C
50 SMU615
Application Manual