Siemens siprotec 7SD5 User Manual page 299

Figure 2-126
Figure 2-127
But if the internal automatic reclose function is controlled by the pickup (only possible
for three-pole tripping: 110 Trip mode = 3pole only), the phase-dedicated pickup
signals of the external protection must be connected if distinction shall be made
between different types of fault. The general trip command then suffices for tripping
(No. 2746). Figure 2-128 shows a connection example.
7SD5 Manual
C53000-G1176-C169-1
Connection example with external protection device for 1-/3-pole reclosure; AR
control mode = with TRIP
Connection example with external protection device for 3-pole reclosure; AR
control mode = with TRIP
2.15 Automatic Reclosure Function (optional)
299