MMS6370/D | Dual-Channel Speed Monitoring Module by EPRO

EPRO MMS6370/D Dual-Channel Overspeed Protection Module

Product Summary

The EPRO MMS6370/D is a dual-channel overspeed protection module designed for critical industrial machinery. It continuously monitors equipment speed and provides configurable alarms and trip functions to prevent hazardous conditions. Moreover, its fast response and robust diagnostics ensure machinery safety and operational efficiency. Therefore, this module is ideal for turbines, compressors, pumps, and motors where precise speed monitoring is crucial.

Technical Specifications

General Information

• Manufacturer: Emerson (EPRO brand, AMS Machinery Health)

• Model Number: MMS6370/D

• Product Type: Overspeed Protection Module

• System: MMS 6000 Machine Monitoring System

• Condition: New & Original

Measurement & Performance

• Measurement Principle: Accepts signals from speed sensors including magnetic pickups, eddy-current, and resistive sensors

• Channels: 2 independent measurement channels (redundant configuration possible)

• Speed Range: Configurable depending on sensor and tooth count 

• Accuracy: ±0.1% of full scale

• Response Time: <10 ms for trip actuation

Inputs & Outputs

• Number of Inputs: 12 

• Number of Outputs: 2

• Output Current: Max. 20 mA

• Current Outputs: 0/4–20 mA proportional to speed

• Relay Outputs: Configurable for alarms and trip functions

• Binary I/O: Supports integration with external systems

Alarms & Diagnostics

• Overspeed alarm and danger trip thresholds configurable

• Zero-speed detection capability

• Continuous self-diagnostics of sensors, wiring, and module health

Power & Isolation

• Nominal Supply Voltage: –24.5 V ±1.5 V DC

• Max. Current: 35 mA

• Isolation: Galvanic isolation between inputs, outputs, and system bus

Physical & Environmental

• Form Factor: Plug-in card for MMS 6000 rack

• Dimensions: Standard rack card size (177 × 100 × 30 mm)

• Weight: 0.26 kg

• Operating Temperature: –20 °C to +65 °C

• Storage Temperature: –25 °C to +70 °C

• Humidity: 10–95% non-condensing

• Compliance: Meets API 670 and IEC standards

FAQ

Q: How many channels does the MMS6370/D support?
It supports two independent speed measurement channels with optional redundancy.

Q: What types of speed sensors are compatible?
Compatible with magnetic pickups, eddy-current probes, and resistive speed sensors.

Q: What is the trip response time for this module?
Trip actuation occurs in less than 10 milliseconds for critical protection.

Q: Can the module detect sensor or wiring faults?
Yes, continuous self-diagnostics and “OK” circuit monitoring prevent false trips.

Q: Does it comply with industry safety standards?
Yes, it meets API 670 and IEC standards for machinery protection.