ABB AC31 - Page 125

Table 70: Pin assignment AI (X2)
Connector / Terminal Pin Assignment / Signal
X2 / 2.0 4 AX522 / I0+
X2 / 1.0 5 AX522 / I0- (AGND)
X2 / 2.1 6 AX522 / I1+
X2 / 1.1 7 AX522 / I1- (AGND)
X2 / 2.2 8 AX522 / I2+
X2 / 1.2 9 AX522 / I2- (AGND)
X2 / 2.3 10 AX522 / I3+
X2 / 1.3 11 AX522 / I3- (AGND)
Table 71: Pin assignment AI (X3)
Connector / Terminal Pin Assignment / Signal
X3 / 2.4 12 AX522 / I4+
X3 / 1.4 13 AX522 / I4- (AGND)
X3 / 2.5 14 AX522 / I5+
X3 / 1.5 15 AX522 / I5- (AGND)
X3 / 2.6 16 AX522 / I6+
X3 / 1.6 17 AX522 / I6- (AGND)
X3 / 2.7 18 AX522 / I7+
X3 / 1.7 19 AX522 / I7- (AGND)
Table 72: Pin assignment 24 V DC 6W (X4)
Connector / Terminal Pin Assignment / Signal
X4 / L+ 20 L+
X4 / L+ 21 L+
X4 / M 22 M
X4 / M 23 M
X4 / FE 24 FE
Table 73: Pin assignment DI (X5)
Connector / Terminal Pin Assignment / Signal
X5 / + 25 IN+
X5 / - 26 IN- (electrically isolated earth)
Table 74: Pin assignment AO (X6)
Connector / Terminal Pin Assignment / Signal
X6 / 4.0 27 AX522 / O0+
X6 / 3.0 28 AX522 / O0- (AGND)
X6 / 4.1 29 AX522 / O1+
X6 / 3.1 30 AX522 / O1- (AGND)
AC31 Adapters
Replacement devices: I/O modules > Replacement device 07AC91-AD2
2018/09/24 3ADR010122, 8, en_US 125