1C31189G01 | Ovation 8 Channels Speed Detector Module

Overview

The Emerson 1C31189G01 is a Speed Detector Module for the Ovation™ distributed control system. It processes speed sensor inputs from magnetic pickups, encoders, and tachometers to provide accurate rotational speed monitoring for turbines, motors, and other rotating machinery.

Technical Specifications

• Manufacturer: Emerson (Westinghouse)
• Model: 1C31189G01
• Type: Speed Detector Input Module
• Supported Sensor Types: Pulse, sine wave, encoder
• Measurement Range: 0 to 100,000 RPM
• Measurement Accuracy: Up to 0.1 %
• Input Voltage: 12 to 24 VDC
• Dimensions: 130 × 100 × 70 mm
• Weight: 0.5 kg

Environmental & Safety Ratings

• Operating Temperature: −40 °C to +70 °C
• Storage Temperature: −55 °C to +85 °C
• Relative Humidity: 5 % – 95 % non-condensing
• Protection Class: IP20

Key Features

• High-accuracy speed measurement up to 100,000 RPM
• Software-configurable filtering and averaging for signal stability
• LED indication for real-time input signal and module status
• Rugged design for demanding industrial environments

FAQ

Q: What sensors are compatible with this module?
A: It supports magnetic pickups (MPUs), encoders, and tachometers generating pulse or sine wave signals.

Q: Does this module require a personality module?
A: Yes, it is typically paired with the 1C31192G01 Speed Detector Personality Module for complete functionality.

Q: Can I use this for turbine overspeed protection?
A: Yes, the high accuracy and fast response make it suitable for turbine overspeed detection and protection systems.

Installation Guidelines

1. Mount the module in the designated Ovation I/O chassis slot.
2. Connect speed sensor wiring to the terminal block per the wiring diagram.
3. Configure sensor type and scaling factors via Ovation Workbench.
4. Verify speed readings against a calibrated reference before commissioning.

Selection Tips

• Choose 1C31189G01 when you need precise speed detection for rotating machinery in Ovation systems.
• Verify sensor signal type (pulse vs. sine wave) matches the module configuration.
• Order the companion personality module 1C31192G01 if not already present in your system.