The Emerson EPRO MMS 6250 is a shaft position monitor designed for measuring and protecting against inadmissible high axial displacements of turbine shafts. Operating as a microcontroller-based 3-channel measuring system, the MMS 6250 standardizes and processes differential input signals from eddy current sensors (such as PR 642x series) to evaluate axial shaft positions. The module incorporates dual redundant +24 VDC power supply inputs, an RS 232 front interface for computer configuration, an RS 485 bus interface for host communication, and optional PROFIBUS-DP connectivity via a front SUB-D socket. It features comprehensive internal module supervision, signal conditioning circuitry, six configurable binary 24 V voltage outputs, and two current outputs per channel (one electrically isolated) for integration into plant protection networks.
| Model | Description | Order Number |
|---|---|---|
| MMS 6250 | Shaft displacement monitor | 9100-00057 |
| MMS 6250/D | Shaft displacement monitor with display | 9100-00056 |
| MMS 6250D/DP | Shaft displacement monitor with display and Profibus DP | 9100-00084 |
| MMS 6351/00 | Backplane for System DAPS | 9100-00047 |
| MMS 6351/10 | Backplane for System DAPS AS | 9100-00049 |
| MMS 6352 | 19 inch mounting frame | 9100-00053 |
| MMS 6360 | Cable 25 pole SUB D 3 m | 9510-00006 |
| MMS 6362 | Cable 25 pole SUB D 0.5 m | 9510-00015 |
| MMS 6363 | Profibus cable 4 m | 9510-00024 |
| MMS 6361 | Screw terminal 25 pol. SUB D | 9100-00052 |
| MMS 6950 | Configuration kit | 9510-00005 |
| MMS 6354 | Set of blind plates | 9501-00005 |
| BLE 008 | Blind plate 8 TE | 9501-00003 |
| Parameter | Value |
|---|---|
| Manufacturer | Emerson / epro |
| Country of Origin | Germany |
| Input Signal Type | Differential input, non-reactive, open-circuit and short-circuit proof |
| Input Voltage Range | 0 to 27.3 VDC (Limit range: 0 to 30 VDC) |
| Input Resistance | > 100 kOhm |
| Measuring Error | < 1% of the measuring range |
| Sensor Signal Output (SENS) | SMB socket, voltage range 0 to 4.1 V (Sensor signal x 0.15), internal resistance 10 kOhm, load > 1 MOhm |
| Current Output 1 (Iout1) | 0/4 to 20 mA or 20 to 4/0 mA, electrically isolated from system ground, accuracy +-1% full scale (16 bit) |
| Current Output 2 (Iout2) | 0/4 to 20 mA or 20 to 4/0 mA, referenced to system ground, accuracy +-1% full scale (16 bit) |
| Sensor Supply Voltage | 26.75 VDC, max. 38 mA, residual ripple < 20 mVss (at 20 mA), open and short-circuit proof |
| Binary Outputs | 6 outputs, +18 to 32 V (High state), 0 to +3.5 V (Low state), Iout max 25 mA |
| Binary Inputs | Voltage inputs +24 V, High: +13 to +32 V, Low: 0 to +3 V, input resistance 6.8 kOhm |
| Module Power Supply | Redundant +18 to 24 to 32 VDC (according to IEC 60654-2) |
| Current Consumption | Max. approx. 250 mA per card |
| Front Panel Width | 6 TE (approx. 30 mm) without display; 14 TE (approx. 71 mm) with display |
| PCB Format | Euro-Format (100 x 160 mm) according to DIN 41 494 |
| Rear Connector | DIN 41 612, design F 48 M |
| Operating Temperature | 0 to +55 degC (max. +65 degC), reference temperature +23 degC |
| Storage Temperature | -40 to +70 degC |
| Relative Humidity | 5 to 95%, non-condensing |
| Vibration Resistance | 0.15 mm amplitude (10 to 55 Hz), 19.6 m/s2 acceleration (55 to 150 Hz) according to IEC-68-2 part 6 |
| Shock Resistance | Peak acceleration 98 m/s2, nominal duration 16 ms according to IEC-68-2 part 29 |
| Protection Class | IP 00 (Module), IP 21 (Front plate) according to DIN 40050 |
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Manufacturer: Emerson
Product No.: MMS6250
Country of origin:United States
Product Type: Shaft Position Monitor
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 450g
Dimensions: 30 mm x 128.4 mm x 160 mm
Shipping port: Xiamen
Warranty: 12 months
The Emerson EPRO MMS 6250 is a shaft position monitor designed for measuring and protecting against inadmissible high axial displacements of turbine shafts. Operating as a microcontroller-based 3-channel measuring system, the MMS 6250 standardizes and processes differential input signals from eddy current sensors (such as PR 642x series) to evaluate axial shaft positions. The module incorporates dual redundant +24 VDC power supply inputs, an RS 232 front interface for computer configuration, an RS 485 bus interface for host communication, and optional PROFIBUS-DP connectivity via a front SUB-D socket. It features comprehensive internal module supervision, signal conditioning circuitry, six configurable binary 24 V voltage outputs, and two current outputs per channel (one electrically isolated) for integration into plant protection networks.
| Model | Description | Order Number |
|---|---|---|
| MMS 6250 | Shaft displacement monitor | 9100-00057 |
| MMS 6250/D | Shaft displacement monitor with display | 9100-00056 |
| MMS 6250D/DP | Shaft displacement monitor with display and Profibus DP | 9100-00084 |
| MMS 6351/00 | Backplane for System DAPS | 9100-00047 |
| MMS 6351/10 | Backplane for System DAPS AS | 9100-00049 |
| MMS 6352 | 19 inch mounting frame | 9100-00053 |
| MMS 6360 | Cable 25 pole SUB D 3 m | 9510-00006 |
| MMS 6362 | Cable 25 pole SUB D 0.5 m | 9510-00015 |
| MMS 6363 | Profibus cable 4 m | 9510-00024 |
| MMS 6361 | Screw terminal 25 pol. SUB D | 9100-00052 |
| MMS 6950 | Configuration kit | 9510-00005 |
| MMS 6354 | Set of blind plates | 9501-00005 |
| BLE 008 | Blind plate 8 TE | 9501-00003 |
| Parameter | Value |
|---|---|
| Manufacturer | Emerson / epro |
| Country of Origin | Germany |
| Input Signal Type | Differential input, non-reactive, open-circuit and short-circuit proof |
| Input Voltage Range | 0 to 27.3 VDC (Limit range: 0 to 30 VDC) |
| Input Resistance | > 100 kOhm |
| Measuring Error | < 1% of the measuring range |
| Sensor Signal Output (SENS) | SMB socket, voltage range 0 to 4.1 V (Sensor signal x 0.15), internal resistance 10 kOhm, load > 1 MOhm |
| Current Output 1 (Iout1) | 0/4 to 20 mA or 20 to 4/0 mA, electrically isolated from system ground, accuracy +-1% full scale (16 bit) |
| Current Output 2 (Iout2) | 0/4 to 20 mA or 20 to 4/0 mA, referenced to system ground, accuracy +-1% full scale (16 bit) |
| Sensor Supply Voltage | 26.75 VDC, max. 38 mA, residual ripple < 20 mVss (at 20 mA), open and short-circuit proof |
| Binary Outputs | 6 outputs, +18 to 32 V (High state), 0 to +3.5 V (Low state), Iout max 25 mA |
| Binary Inputs | Voltage inputs +24 V, High: +13 to +32 V, Low: 0 to +3 V, input resistance 6.8 kOhm |
| Module Power Supply | Redundant +18 to 24 to 32 VDC (according to IEC 60654-2) |
| Current Consumption | Max. approx. 250 mA per card |
| Front Panel Width | 6 TE (approx. 30 mm) without display; 14 TE (approx. 71 mm) with display |
| PCB Format | Euro-Format (100 x 160 mm) according to DIN 41 494 |
| Rear Connector | DIN 41 612, design F 48 M |
| Operating Temperature | 0 to +55 degC (max. +65 degC), reference temperature +23 degC |
| Storage Temperature | -40 to +70 degC |
| Relative Humidity | 5 to 95%, non-condensing |
| Vibration Resistance | 0.15 mm amplitude (10 to 55 Hz), 19.6 m/s2 acceleration (55 to 150 Hz) according to IEC-68-2 part 6 |
| Shock Resistance | Peak acceleration 98 m/s2, nominal duration 16 ms according to IEC-68-2 part 29 |
| Protection Class | IP 00 (Module), IP 21 (Front plate) according to DIN 40050 |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Black
|
| Country of origin |
United States
|
| Power source |
DC Power
|
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