ABB AC31 Assembly And Operation Manual page 41

Fig. 32: Use of analog inputs as digital inputs
Connection of the 4 configurable analog outputs
Connector / Terminal
X10 / AG.2
X10 / 3.5
X10 / 3.6
X10 / 7.5
X10 / 7.6
The arrangement of the 4 analog outputs is shown below:
Fig. 33: Arrangement of the analog outputs
Resolution: 12 bit (+ sign)
The 4 analog outputs are not electrically isolated and have a reference to ZP internally via PTC
resistors.
2018/09/24
Pin
75
76
77
78
79
UP must be connected to connectors X7, X8 and X9. The internal voltage
supply to the ADC channels is no longer provided by L+ but by UP in the mod-
ules DA501 and DA502.
3ADR010122, 8, en_US
Replacement devices: CPU > Replacement device 07KT9x-AD
Assignment / Signal
AGND2
DA502 / AO0+
DA502 / AO1+
DA501 / AO0+
DA501 / AO1+
AC31 Adapters
41