Connector / Terminal Pin Assignment / Signal
X6 / 4.2 31 AX522 / O2+
X6 / 3.2 32 AX522 / O2- (AGND)
X6 / 4.3 33 AX522 / O3+
X6 / 3.3 34 AX522 / O3- (AGND)
Table 75: Pin assignment AO (X7)
Connector / Terminal Pin Assignment / Signal
X7 / 4.4 35 AX522 / O4+
X7 / 3.4 36 AX522 / O4- (AGND)
X7 / 4.5 37 AX522 / O5+
X7 / 3.5 38 AX522 / O5- (AGND)
X7 / 4.6 39 AX522 / O6+
X7 / 3.6 40 AX522 / O6- (AGND)
X7 / 4.7 41 AX522 / O7+
X7 / 3.7 42 AX522 / O7- (AGND)
The outputs on connector X7 cannot be configured as current outputs.
The signals Ix- and Ox- are internally linked to an AGND area. The potential AGND is con-
nected to the potential M via PTC resistors. Potential difference AGND to M ± 1 V maximal.
To enable wire-break detection, each input is internally pulled to "plus" by means of a high-impe-
dance resistor. As a result, the maximum voltage is read when nothing is connected. Do not
replace the AX522 module while voltage is connected.
Fig. 78: Voltage input
1) Electrically isolated power supply of analog sensor
Replacement devices: I/O modules > Replacement device 07AC91-AD2
2018/09/243ADR010122, 8, en_US126
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