EPRO MMS6823R Monitoring Module

Technical Specifications

Model:MMS6823R

Brand:EPRO(Emerson)

Channel:2 independent input channels

Supported sensor:Hall effect sensor,magnetoelectric pickup

Frequency range:0~20kHz

Input signal:TTL square pulse / AC sine signal

Measurement precision:±1%FS

Power supply:24VDC

Relay output:2 SPDT alarm relays

Communication:RS485 Modbus RTU

Operating temperature:0~60℃

Storage temperature:-20~+80℃

Relative humidity:5~95% non-condensing

Form factor:Eurocard rack plug-in module

Weight:0.42kg

Certification:CE,API670,SIL2

System compatibility:Works with EPRO MMS6000 TSI rack system,matched with PR9376 hall keyphase probe,for steam turbine,compressor,generator shaft speed monitoring and key phase signal acquisition.

Function:Dual channel signal acquisition module,collect pulse signal from speed/keyphase probe,calculate rotating speed,identify key phase reference point. Support overspeed alarm,phase monitoring,relay alarm contact output and Modbus communication data upload for fault diagnosis.

Installation:Plug into MMS6000 rack slot,hot swap available. Rear backplane bus connection,front terminal for sensor wiring.

Interface:

‑Front terminal block for sensor signal input

‑Internal rack backplane bus interface

‑2 relay alarm output terminals

‑RS485 Modbus RTU communication port

‑LED status indicator for power,channel and fault

Circuit feature:Built-in signal shaping and high-speed sampling circuit,hardware overspeed detection,continuous self-diagnosis for circuit and sensor cable fault.

Feature:EPRO MMS6823R upgraded dual channel speed & keyphase monitor,with Modbus RTU communication function. SIL2 safety level,API670 standard. Common faults:channel input circuit damage,backplane communication failure,relay contact aging. Confirm rack version and sensor type before replacement.

Diagnostic:Module fault leads to speed or keyphase signal loss,overspeed protection failure,trigger TSI system alarm.

Built‑in function

MMS6823R acquires shaft speed and keyphase signal for rotating machinery protection,widely used for power plant TSI spare replacement.

Product Brief

MMS6823R belongs to EPRO MMS6000 TSI monitoring module family,MMS6823R dual channel speed and keyphase board with Modbus communication. Verify rack version and probe compatibility before ordering. Check channel signal,relay output and communication function during commissioning. Widely applied for steam turbine,compressor and generator condition monitoring. ESD anti‑static protection shall be followed during installation.