Product Description
Product Details
General Information
|
Manufacturer |
Emerson |
|---|---|
|
Model/Part Number |
MMS6220 |
|
Description |
Dual Channel Eccentricity Monitor |
Technical Specifications
Sensor Inputs
|
Feature |
Specification |
|---|---|
|
Type |
Two independent signal inputs for eddy current measuring chains |
|
Input Type |
Differential inputs, galvanically isolated from the power supply |
|
Input Impedance |
≥ 100 kΩ |
|
Input Voltage Range |
-1 V to -23 V DC |
|
Signal Frequency Range |
0.017 Hz to 70 Hz (1.02 to 4200 rpm) |
|
Signal Voltage Range |
0 - 400 mV peak (min), 0 - 8000 mV peak (max) |
Sensor Supply
|
Feature |
Specification |
|---|---|
|
Isolation |
Each sensor has its own output buffer, galvanically isolated |
|
Protection |
Open circuit and short-circuit proof |
|
Nominal Voltage |
-26.7 V DC |
|
Maximum Supply Current |
Typical: 20 mA, Max: 35 mA |
Control Inputs
|
Feature |
Specification |
|---|---|
|
Common Logic Inputs |
Used for both channels |
|
Functions |
Operating mode selection, warning & danger limit setting, monitor locking |
|
Measuring Range Multiplier |
Adjustable range: 1.000 to 4.999 |
|
Logic Level |
24 V Logic |
|
Input Resistance |
≥ 30 kΩ |
Key Pulse Input
|
Feature |
Specification |
|---|---|
|
Function |
One pulse per revolution, used for system control |
|
Logic Level |
24 V Logic |
|
Input Resistance |
≥ 30 kΩ |
|
Pulse Duration |
Min. 10 µs (edge triggering) |
Voltage Inputs
|
Feature |
Specification |
|---|---|
|
Channels |
Two (one for each channel) |
|
Voltage Range |
0 - 10 V |
|
Input Impedance |
≥ 100 kΩ |
|
Resolution |
10-bit |
Power Supply
|
Feature |
Specification |
|---|---|
|
Supply Inputs |
Redundant, decoupled via diodes |
|
Supply Voltage |
18 - 24 - 31.2 V DC (IEC 654-2, Class DC4) |
|
Power Consumption |
Max. 6 W (250 mA at 24 V) |
|
System Capacity |
Up to 31 modules (62 channels) per RS485 bus |
|
Expansion |
Additional RS485 buses required for larger systems |
Environmental Conditions
|
Feature |
Specification |
|---|---|
|
Protection Class (Monitor) |
IP00 (DIN 40050) |
|
Protection Class (Front Plate) |
IP21 (DIN 40050) |
|
Climate Conditions |
DIN 40040 Class KTF |
|
Operating Temperature |
0 to +65°C |
|
Storage & Transport Temperature |
-30 to +85°C |
|
Relative Humidity |
5% to 95%, non-condensing |
|
Vibration Resistance |
IEC 68-2 Part 6 |
|
Vibration Amplitude |
0.15 mm (10 - 55 Hz) |
|
Vibration Acceleration |
16.6 m/s² (55 - 150 Hz) |
|
Shock Resistance |
IEC 68-2 Part 29 |
|
Shock Acceleration |
98 m/s² |
|
Shock Duration |
16 ms |
|
EMC Resistance |
EN50081-1 / EN50082-2 |
Physical Specifications
|
Feature |
Specification |
|---|---|
|
Format |
PCB/Euro card (DIN 41494) |
|
Width |
30.0 mm (6 TE) |
|
Height |
128.4 mm (3 HE) |
|
Length |
160.0 mm |
|
Net Weight |
Approx. 320 g |
|
Gross Weight |
Approx. 450 g (including packing) |
|
Packing Volume |
Approx. 2.5 dm³ |
|
Required Space |
14 modules |