TTD Series Configurable Fault Annunciator for Engine Protection

The TTD Series configurable fault annunciator is designed to monitor and protect engines, pumps, and compressors in demanding industrial environments. By continuously monitoring multiple sensor inputs, the system provides real-time alarm notifications and automatic shutdown control to help prevent equipment damage and operational downtime. Its flexible configuration and reliable fault indication make it suitable for marine, oil & gas, and industrial engine monitoring applications where equipment safety and operational reliability are critical.

48 Sensor Inputs

38.4K Baud Rate

IP66 Protection

-40° to 85°C Operating Temp

Key Features Section

48 Configurable Sensor Inputs – Supports up to 48 monitoring channels that can be connected to normally open or normally closed sensors, enabling comprehensive monitoring of multiple engine and equipment parameters.
Flexible Alarm and Shutdown Configuration – Each sensor input can be configured to trigger either an alarm notification or an automatic shutdown, allowing operators to customize protection strategies for critical equipment.
Event History and Run Hour Tracking – Built-in memory records recent shutdown events and alarms along with associated run hours, helping maintenance teams quickly diagnose faults and review equipment performance history.
Modbus RTU Communication – Equipped with RS232 or RS485 communication interfaces that support Modbus RTU protocol for seamless integration with PLCs, SCADA systems, and remote monitoring platforms.
Integrated Tachometer Monitoring – Optional tachometer functionality enables engine speed monitoring with configurable overspeed and underspeed protection for improved operational safety.
Built-in Test Mode – Allows technicians to verify sensor circuits and system functionality without triggering a shutdown condition, simplifying maintenance and system testing.
Rugged Industrial Design – Engineered for demanding environments including marine, oil & gas, and industrial installations where reliability and equipment protection are critical.

Applications

Marine Engine Monitoring – Provides fault indication and shutdown protection for propulsion and auxiliary engines operating in commercial vessels and marine installations.
Oil and Gas Equipment Protection – Monitors compressors, pumps, and field equipment in upstream and midstream operations where continuous operation and safety are essential.
Industrial Pump Systems – Detects abnormal conditions such as overheating, pressure faults, or lubrication issues to prevent pump damage and costly downtime.
Gas Compressor Monitoring – Enables early fault detection and automatic shutdown to protect compressors used in gas processing and transmission facilities.
Generator and Power Systems – Helps monitor engine-driven generators and power equipment by detecting operational faults and triggering alarms or shutdown when necessary.

Technical Specifications

Advanced configurable fault annunciator designed for reliable monitoring, protection, and shutdown control across critical engine and industrial applications.

Category	Details
Product Type	Configurable fault annunciator for engine and equipment monitoring
Maximum Sensor Inputs	Up to 48 configurable digital input channels
Supported Sensor Types	Normally Open (N.O.) and Normally Closed (N.C.) discrete sensors
Power Supply	10–32 VDC or 90–400 VDC ignition power
Backup Power	Internal lithium battery for memory retention and fault display
Communication Interface	RS232 or RS485 serial communication
Communication Protocol	Modbus RTU
Display Type	Static LCD display with LED backlight
Tachometer Input	Magnetic pickup sensor input for engine speed monitoring (optional)
Operating Temperature	-40°C to 85°C (-40°F to 185°F)
Run Hour Meter Range	0 to 499,999 hours
Typical Applications	Industrial engines Pumps and compressors Generator sets Marine propulsion systems

How the TTD Series Fault Annunciator Works

The TTD Series configurable fault annunciator continuously monitors multiple sensor inputs connected to engines, pumps, compressors, and other industrial equipment. Each input channel can be configured to detect specific operating conditions such as pressure loss, high temperature, low lubrication flow, or abnormal engine speed.

When a connected sensor detects an abnormal condition, the annunciator immediately triggers a visual alarm on the display panel. This alert allows operators to quickly identify the fault and take corrective action before the condition causes equipment damage.

For critical safety conditions, the system can also activate an automatic shutdown output. This shutdown signal stops the engine or connected equipment, preventing severe mechanical damage and reducing operational risk.

The annunciator stores recent alarm and shutdown events in its internal memory, enabling operators and maintenance teams to review system history and diagnose faults efficiently. With support for serial communication and Modbus protocol, the system can also integrate with PLCs, SCADA platforms, and remote monitoring systems.

Technical FAQ

Common Questions Answered

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A configurable fault annunciator is a monitoring device used to detect abnormal operating conditions in industrial equipment such as engines, pumps, and compressors. It alerts operators through visual alarms and can trigger automatic shutdown to protect equipment from damage.

The annunciator monitors sensor inputs such as temperature, pressure, lubrication flow, and engine speed. When a connected sensor detects an unsafe operating condition, the system activates an alarm or initiates automatic shutdown to prevent equipment failure.

The TTD Series configurable fault annunciator supports multiple configurable input channels, allowing operators to monitor numerous sensors and critical operating parameters across industrial equipment.

Yes. The system supports serial communication using Modbus RTU protocol via RS232 or RS485 interfaces, enabling integration with PLCs, SCADA systems, and remote monitoring platforms.

Fault annunciator systems are widely used in marine vessels, oil and gas facilities, industrial pump stations, gas compressors, and generator installations where continuous monitoring and equipment protection are essential.