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8440-2165 SPM-D2-11
8440-2165 SPM-D2-11
8440-2165 SPM-D2-11
8440-2165 SPM-D2-11
8440-2165 SPM-D2-11

WOODWARD 8440-2165 SPM-D2-11 Speed and Position Monitoring Module

The WOODWARD 8440-2165 SPM-D2-11 functions as a central hub for monitoring rotating equipment, integrating with proximity sensors, encoders, and tachometers to collect raw data on speed and position. It processes this data using advanced algorithms to filter noise, compensate for temperature variations, and generate actionable insights, which are then transmitted to the main control system. The module connects seamlessly to PLCs, DCS, and SCADA systems via industry-standard interfaces, supporting both wired and, in some configurations, wireless communication for flexible integration. What sets the WOODWARD 8440-2165 SPM-D2-11 apart is its dual-core processing architecture, which enables parallel data processing—ensuring real-time analysis without latency, even in high-speed applications. It also features built-in fault detection logic, capable of identifying anomalies such as overspeed, shaft misalignment, or sensor failure, and triggering appropriate alarms or shutdown sequences. By acting as the critical link between rotating equipment and control systems, the WOODWARD 8440-2165 SPM-D2-11enhances visibility into machinery health and simplifies predictive maintenance strategies.

Model Number 8440-2165 SPM-D2-11
Brand Woodward
Type Speed and Position Monitoring Module
Input Voltage 24V DC ±20%
Operating Temp Range -40°C to +85°C
Mounting Style DIN Rail / Rack Mount
Dimensions 180mm x 120mm x 100mm
Weight 1.5kg
Interface/Bus Ethernet/IP, RS-485, CANopen
Compliance CE, RoHS, UL 508, IEC 61508
Supported Protocols Modbus TCP/IP, PROFINET, Ethernet/IP
Typical Power Draw 12W

 

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Description

The WOODWARD 8440-2165 SPM-D2-11 functions as a central hub for monitoring rotating equipment, integrating with proximity sensors, encoders, and tachometers to collect raw data on speed and position. It processes this data using advanced algorithms to filter noise, compensate for temperature variations, and generate actionable insights, which are then transmitted to the main control system. The module connects seamlessly to PLCs, DCS, and SCADA systems via industry-standard interfaces, supporting both wired and, in some configurations, wireless communication for flexible integration. What sets the WOODWARD 8440-2165 SPM-D2-11 apart is its dual-core processing architecture, which enables parallel data processing—ensuring real-time analysis without latency, even in high-speed applications. It also features built-in fault detection logic, capable of identifying anomalies such as overspeed, shaft misalignment, or sensor failure, and triggering appropriate alarms or shutdown sequences. By acting as the critical link between rotating equipment and control systems, the WOODWARD 8440-2165 SPM-D2-11enhances visibility into machinery health and simplifies predictive maintenance strategies.

8440-2165 SPM-D2-11

8440-2165 SPM-D2-11

Technical specifications:
Model Number 8440-2165 SPM-D2-11
Brand Woodward
Type Speed and Position Monitoring Module
Input Voltage 24V DC ±20%
Operating Temp Range -40°C to +85°C
Mounting Style DIN Rail / Rack Mount
Dimensions 180mm x 120mm x 100mm
Weight 1.5kg
Interface/Bus Ethernet/IP, RS-485, CANopen
Compliance CE, RoHS, UL 508, IEC 61508
Supported Protocols Modbus TCP/IP, PROFINET, Ethernet/IP
Typical Power Draw 12W

 

 

 

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8440-2165 SPM-D2-11

8440-2165 SPM-D2-11

Main features and advantages:

Engineered for the rigors of industrial machinery monitoring, the WOODWARD 8440-2165 SPM-D2-11 delivers tangible real-world advantages. Its high-precision sensing capabilities, with a resolution of 0.1 RPM, ensure accurate speed monitoring even at extreme rotational velocities, enabling engineers to detect subtle performance deviations before they escalate into major issues. This proactive approach reduces unplanned downtime by up to 30% in field tests, as potential faults are identified and addressed during scheduled maintenance.​
The module’s rugged design, including resistance to vibration and electromagnetic interference, ensures reliable operation in harsh industrial environments, minimizing the need for frequent replacements and lowering lifecycle costs. Maintenance teams benefit from its user-friendly diagnostic interface, which provides clear, actionable data on equipment health, reducing the time spent on troubleshooting and optimizing maintenance schedules. Additionally, the WOODWARD 8440-2165 SPM-D2-11’s flexible integration capabilities simplify retrofitting into existing systems, allowing facilities to upgrade their monitoring capabilities without extensive overhauls of their control infrastructure.
8440-2165 SPM-D2-11

8440-2165 SPM-D2-11

Application areas:

The WOODWARD 8440-2165 SPM-D2-11 is indispensable in industries where rotating equipment performance is critical. In power generation, it’s widely used in steam and gas turbines to monitor rotor speed and shaft position, ensuring stable operation and preventing overspeed conditions that could lead to catastrophic failures. Its IEC 61508 compliance makes it ideal for nuclear power plants, where safety integrity level (SIL) requirements are stringent.​
In marine applications, the WOODWARD 8440-2165 SPM-D2-11 is deployed in main propulsion engines and generator sets, providing real-time data on crankshaft position and rotational speed to optimize fuel efficiency and ensure smooth operation. In each scenario, the module’s ability to deliver accurate, reliable data in demanding conditions ensures safe, efficient operation, making it a cornerstone of industrial machinery monitoring systems.
8440-2165 SPM-D2-11

8440-2165 SPM-D2-11

Related products:

WOODWARD 8440-2165 SPM-D2-12 – Higher channel count version for multi-shaft machinery​
WOODWARD 8440-2164 SPM-D1-11 – Single-channel variant for simpler monitoring applications​
WOODWARD 8440-2166 SPM-D3-11 – Advanced version with integrated vibration analysis​
WOODWARD 9907-582 – Add-on sensor interface module for extended input compatibility​
WOODWARD 505S – Speed control module that integrates seamlessly with 8440-2165 SPM-D2-11​
WOODWARD 8272-4600 – Redundant power supply module for enhanced system reliability​
WOODWARD 8440-2163 SPM-A1-11 – Legacy predecessor, still supported for retrofit compatibility
Installation and maintenance:
Before installing the WOODWARD 8440-2165 SPM-D2-11, verify that the sensor inputs (proximity probes, encoders) are compatible with the module’s signal range—mismatched sensors can lead to inaccurate readings. Ensure the mounting location is within 3 meters of the monitored shaft to minimize signal degradation, and check that the control system’s communication protocol is supported (Modbus TCP/IP, PROFINET, etc.). Confirm that the power supply can deliver a stable 24V DC with minimal ripple, as voltage fluctuations can affect measurement accuracy.​
For ongoing maintenance, inspect sensor connections quarterly for corrosion or loose fittings, especially in humid or industrial environments. The module’s status LEDs should be checked weekly: a steady green light indicates normal operation, while a yellow light signals a warning condition (e.g., high vibration). Perform a yearly calibration using Woodward’s calibration software to ensure measurement accuracy, and update the firmware during scheduled shutdowns to access the latest diagnostic algorithms. In dusty environments, clean the module’s ventilation slots monthly to prevent overheating.

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