Speed Detection Serial Interface Module | 1C31189G01 Emerson Ovation
Manufacturer: Emerson
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Part Number: 1C31189G01
Condition：New with Original Package
Product Type: Speed Detection Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Emerson 1C31189G01 Ovation Series Speed Detection and Serial Module
Configured for precise rotational speed translation and external serial integration in Ovation Distributed Control Systems, the Emerson 1C31189G01 (1C31189G01 Speed Detection and Serial Interface Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1C31189G01 |
| Brand | Emerson |
| Origin | USA |
| Weight | 0.39 kg (0.86 lbs) |
| Dimensions | 130 mm x 100 mm x 70 mm |
| Operating Temp | -20 deg C to +60 deg C (-4 deg F to +140 deg F) |
| Power Consumption | 24 VDC (standard Ovation rack configuration) |
| Measurement Range | 0 to 100,000 RPM (0.72 Hz to 65,535 Hz) |
| Measurement Accuracy | +/-0.1% of reading (Resolution: 0.01 Hz) |
| Response Time | Less than or equal to 2 ms |
| Input Signals | Pulse, sine wave, encoder, proximity probe, dual RS-232/RS-422/RS-485 |
| Output Signals | 4-20 mA current loop (isolated), digital RPM word, dual serial ports |
| Supported Protocols | RS-232, RS-422, RS-485, Modbus RTU, PROFIBUS-DP |
| Mounting Type | Rack-mounted module |
| Humidity Range | 5% to 95% RH (non-condensing) |
| Certifications | CE, UL, RoHS compliant |
Cold Junction Compensation and Channel-to-Channel Isolation
To guarantee precise signal conversion of low-level pulses from proximity probes or magnetic pickups without distortion, the module incorporates a high-integrity 1000 V AC/DC galvanic isolation barrier. This channel-to-channel isolation decouples the external field sensor circuits and the dual serial interfaces from the sensitive internal logic bus. By separating the signal paths, the module prevents ground loops, suppresses common-mode noise, and safeguards the internal processor from high-voltage transient spikes originating in harsh field environments.
Frequently Asked Questions
Q: Can the 1C31189G01 be replaced while the control system is powered and running?
A: Yes. This module is fully hot-swappable and can be inserted or removed under power without shutting down the rack, permitting online maintenance and zero-downtime replacements.
Q: What sensor types are compatible with the speed detection inputs?
A: The speed detection circuit directly accepts high-frequency signals from magnetic passive pickups, active encoders, sine wave tachometer generators, and active three-wire proximity probes.
Q: How are the dual serial ports configured on this module?
A: The serial ports are independently software-configurable to support RS-232, RS-422, or RS-485 physical standards. They support baud rates ranging from 300 to 115,200 bps for Modbus RTU or PROFIBUS-DP interfacing.
Field Installation Guidelines
- Insert the module vertically into the designated rack slot, ensuring the physical backplane alignment pins engage smoothly without applying excessive force.
- Use shielded, twisted-pair cabling for both speed sensor inputs and serial communication lines to minimize electromagnetic interference.
- Terminate the cable shields directly at the cabinet ground bar, keeping the shield connection short and ensuring it is grounded at one end only to prevent ground loops.
- Observe static discharge procedures, including the use of an ESD wrist strap, when handling the circuit card to prevent damage to the onboard microcontrollers.