[General Electric] GE MM2 Motor Manager Complete Guide

2026-04-29

The MM2 (Motor Manager 2) launched by GE Multilin is designed to address these pain points. It integrates three-phase overload protection (49/51), ground fault (50G/51G), locked rotor protection (48), undercurrent/underpower (37), voltage protection (27/59), thermistor input, programmable logic control function, and Modbus RTU communication into a compact unit. This article will elaborate on the hardware features, key settings, typical troubleshooting steps, and application wiring of MM2 from the perspective of on-site engineers, helping you quickly master the configuration and maintenance of this device.

[General Electric] GE DC Drives (BCH series) upgrade and replacement of old DC drives

2026-04-28

In heavy industries such as metallurgy, papermaking, mining, lifting, plastics and rubber, a large number of DC drives have been running continuously for more than ten or even more than twenty years. These devices were once the heart of the production line, but over time, they are facing three fatal challenges:
Outdated platform and shortage of spare parts: The core boards (such as trigger boards and adjustment boards) have been discontinued by the original factory, and replacement parts are difficult to buy in the market. Maintenance can only rely on dismantling old machines or high imitation products, with extremely low reliability.

[General Electric] Mark VIeS Security System

2026-04-13

In the era of deep integration of intelligent manufacturing and industrial Internet, the process industry is facing unprecedented challenges and opportunities. On the one hand, device interconnection, data collection, and remote operation and maintenance are significantly improving production efficiency; On the other hand, the security risks of critical infrastructure, the retirement of senior technical personnel, and increasingly stringent regulatory requirements have forced companies to re-examine the integrity and reliability of their security control systems. It is in this context that functional safety systems are no longer just the last line of defense for "parking protection", but have become the core pillar for enterprises to achieve sustainable operation, reduce liability risks, and ensure the safety of personnel and assets.

[General Electric] GE Fanuc Series 90-30 PLC Hardware System

2026-03-26

In the field of industrial automation, programmable logic controllers (PLCs) are the core of control systems. GE Fanuc's Series 90-30 PLC plays an important role in numerous industrial applications due to its modular design, high reliability, and powerful scalability. It allows users to build customized control systems by combining different hardware components according to specific needs. This article aims to provide an in-depth interpretation of the installation and hardware manual for Series 90-30 PLC, systematically elaborating on its system architecture, core component characteristics, installation specifications, and system design points, providing automation engineers with a professional and detailed technical reference.