Description
The ABB 07AC91 GJR5252300R0101 is an AC31 distributed automation Analog I/O Module designed for ABB PLC and industrial control systems. It provides flexible analog signal acquisition and output functions for process automation applications, allowing controllers to interface with field transmitters, sensors, actuators, and other analog devices.
The 07AC91 module supports configurable analog channels and can operate in different I/O configurations, including 8 analog inputs and 8 analog outputs or selectable analog channel combinations. It communicates through the ABB CS31 fieldbus and is commonly used in ABB AC31 automation systems for distributed control applications.
This module is suitable for industrial equipment maintenance, automation upgrades, and replacement of existing ABB AC31 I/O components where stable analog signal processing is required.
🔹 Product Parameters
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 07AC91 |
| Part Number | GJR5252300R0101 |
| Series | AC31 Distributed Automation |
| Product Name | Analog I/O Module |
| I/O Configuration | 8 AI / 8 AO or configurable analog channels |
| Communication Interface | CS31 Bus / RS-485 |
| Origin / Place of Manufacture | Germany / Europe |
| Product Status | New Surplus / Refurbished / Used Available |
| Dimensions | Approx. 120 × 140 × 85 mm |
| Weight | Approx. 0.81 kg |
| Power Supply | 24 VDC |
| Analog Input Range | Voltage / Current Signals |
| Analog Output Range | Voltage / Current Signals |
| Mounting Type | DIN Rail Mounting |
| Protection Rating | IP20 |
| Operating Temperature | 0°C to +55°C |
| Discontinued Status | Legacy Product, Limited Availability |
🔹 Common Questions & Answers
Q: What is the main function of the ABB 07AC91 GJR5252300R0101?
A: It is an analog I/O module used to collect and output analog signals in ABB AC31 PLC automation systems.
Q: Which ABB system uses the 07AC91 module?
A: It is mainly used in ABB AC31 distributed automation PLC systems with CS31 fieldbus communication.
Q: What types of signals can this module handle?
A: The module supports analog voltage and current signal processing for industrial sensors and actuators.
Q: What are common failure symptoms?
A: Typical issues include incorrect analog readings, channel communication faults, unstable output signals, or CS31 bus communication errors.
Q: What should be checked before replacement?
A: Confirm the exact ABB part number, I/O configuration, CS31 bus address, wiring terminals, power supply, and PLC compatibility.
Q: Is the 07AC91 still manufactured?
A: The module is considered a legacy ABB AC31 component and is mainly available through surplus inventory and industrial spare-part suppliers.
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