Machine Protection
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Excessive vibration, overheating, power overconsumption, excessive shaft axial movement, and other abnormal parameters can lead to machine failure. Therefore, the machine must be protected against these parameters. To achieve this, appropriate sensors are installed on the machine to continuously monitor the relevant parameter and transmit the data to a monitor.
The monitor processes the received signal and defines the measured amplitude with specific characteristics. This amplitude is evaluated against two predefined thresholds. When the Alert threshold is reached, the monitor issues a warning to the operator and provides an output alarm signal via the corresponding relay. If the amplitude reaches the Danger threshold, in addition to notifying the operator, the machine can be automatically shut down via the trip relay.
The monitoring system must be accurate, fast, and simple to effectively perform its protective function, stopping the machine only when necessary. False alarms can lead to unnecessary machine and production line shutdowns, resulting in significant losses.
Machine Monitoring System (MMS) Development
With advancements in Machine Monitoring Systems (MMS), it is now possible to measure protective parameters such as vibration, temperature, axial position, and other process variables, manage relays, and generate combined alarms. This system can also provide the necessary data for condition monitoring.
Condition Monitoring Techniques
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Offline VCM (Vibration Condition Monitoring) – Periodic monitoring
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Online VCM – Continuous real-time monitoring
