Replacement Device 07Ac91-Ad2 - ABB AC31 Assembly And Operation Manual

1.5.5 Replacement device 07AC91-AD2

1.5.5.1 Introduction
Fig. 74: 3ADR331194S0015_07AC91-AD2
The replacement device 07AC91-AD2 of the AC31 adapter series replaces the existing device
07AC91 of the AC31/90 series in operating mode 12 bit. The replacement device 07AC91-AD
is available for operating mode 8 bit.
During the development of the replacement device, care was taken to keep the device configu-
ration identical to the configuration of the existing device. Thus, the existing documentation of
device 07AC91 remains valid and serves as reference
(system description Advant Controller 31). The document structure of this document is based on
the document structure of the existing documentation.
This document adds the following points to the still valid existing documentation:
● Unavoidable device deviations, e.g. due to technical limitations.
● Expansion of documentation as a result of normative requirements.
● Additional contents not described in the existing documentation.
Further information on replacement device 07AC91-AD2 can be found in the operating and
assembly instructions of device 07AC91-AD2: 3ADR020085M0401. Please note that for the
existing device 07AI91 no separate operating and assembly instructions are available.
Please also observe the system data as well as the information on CS31 bus
"System data and CS31 bus system data" on page 4.
2018/09/24
Replacement devices: I/O modules > Replacement device 07AC91-AD2
3ADR010122, 8, en_US
AC31 Adapters
Ä Chapter 1.3
121