EPRO MMS6350/DP Digital Overspeed Protection System 

 Product Details:

Description: 
----------------------------------------------------------------------------------------------------------------

MMS6350 DATASHEET PDF

Systems DOPS and DOPS AS SIL3.certified
PROFIBUS-DP Interface: (optional)
Microcontroller based 3-channelmeasuring system
High safety level due to password protection at each of the monitors
Up to 6 limit values per channel
Two current outputs per channel with zoom and dual current function, one of them electrically isolated
Mutual comparison of pulses and output signals between all channels
Redundant power supplies for monitors and backplane
Self-test functions for electronic circuits and sensors
Simplified fault detection by display messages in plaintext
Electrical isolation of binary input and output signals
Wiring by means of preformed cables and converters in the control cubicle
RS 232 interface for input of parameters
RS 485 interface for data exchange with the host computer
Hot swap of boards during operation

Applications:
----------------------------------------------------------------------------------------------------------------

The speed measurement and overspeed protection systems DOPS and DOPS AS serve the measurement of speeds and the protection of inadmissible over speeds at rotating machines.
The DOPS systems in combi-nation with safety shut-off valves are suitable to replace older mechanical overspeed protection systems.
With the consistent three channel design, starting with the signal detection via signal processing up to the evaluation of the measured speed, the system offers the maximum safety for the machines to be monitored.
 Safety relevant limit values (e.g. overspeed limits)are submitted to the post-connected fail-safe technique.
Thus it can be ensured that beside safety, the protection operational function on a high level standard is met as well.
The integrated peak value memory permits reading out the maximum speed value that has occurred before the machine was switched off. This function provides important information for evaluating the mechanical machine load caused by the overspeed.
Alarm outputs and error messages are output as potential-free relay outputs and as short-circuit proof +24 V voltage outputs.
The alarm outputs, combined in 2out of 3 logic, are also available as potential free relay contacts.
The system includes an extended fault detection function. 
The three speed sensors are continuously checked on operating with in the permitted limits.
More over, the channels mutually check and supervise the output signals of each other.
lf the internal fault detection circuit detects an error, this will be indicated via the output contacts and shown on the display as plaintext.
By means of the the PROFIBUS DP interface the recorded data can be passed on to host computers.
By using prefabricated connection cables and screw terminals, the systems may integrated economically in 19" cabinets.