Yard Control

Track Energization Control System

Altus was tasked with developing a yard control system for track energization, which is remotely operated by both the local tower and the Operational Control Center (OCC) at the Itaquera and Belém yards.

Control System for Itaquera and Belém Yards

The system upgrade involved installing local remotes next to disconnect switches, circuit breakers, and feeders. All equipment is connected via an optical ring, with data being centralized in a panel called PCP. From there, the data is sent to the OCC over fiber optics.

Two setups are currently operational: Itaquera Yard (PIT) and Belém Yard (EPB). In addition to track energization control, the SPAP (Platform Accident Prevention System) was introduced, which can fully de-energize the yards remotely with a single command.
Manutenção Preditiva

Predictive Maintenance

Consolidated and centralized data for the maintenance of the electrical subsystems

Diagnósticos

Diagnostics

Streamlined diagnostics that make it easier to identify issues, improving equipment reliability

Economia

Energy Efficiency

Lower operational costs through automated control, reducing the need for multiple operators per shift

Informações Centralizadas

Centralized Information

The system also enhances the centralization of operational data, making processes more efficient

O escopo do projeto de modernização dos pátios

Scope of the Yard Modernization Project

Altus was responsible for delivering all the necessary hardware and materials, developing the electrical/mechanical design, and handling the assembly of the control panels. The engineering team also created the application software for the PLCs that manage the system.

In total, 169 stainless steel remotes and 3 Control Centers (PCP) were installed. The main controller in each PCP includes a redundant PLC with integrated I/Os, designed to receive local diagnostic data from panels—such as power status, converters, switches, and more. The controller’s main function is to collect field data and transmit it to the OCC via the MODBUS protocol using optical fiber.

Sistema redundante de acionamento SPAP

Redundant SPAP Activation System

In addition to the centralized control equipment, the engineering team also installed a redundant SPAP activation system to alert operators in case of any operational failure. System alarms and events are logged onto the CITEC Supervisory System.

The digital network is made up of 6 expandable switches with approximately 80 ports in total. The field network was designed as a dual optical ring, ensuring high reliability and performance.