Industrial Equipment Monitoring: Combining Vibration, Temperature, Current and Drive Data
For many industrial facilities, the first sign of a critical pump or motor problem is when it trips or fails. By then, a developing bearing fault may have caused further damage, resulting in unplanned downtime, costly repairs and production disruption.
Industrial equipment monitoring and predictive maintenance help businesses identify potential problems earlier, allowing maintenance teams to act before minor issues become major failures.
While monitoring individual machine signals is not new, combining vibration, temperature, motor current and variable speed drive data provides a much clearer picture of equipment health.
Each signal provides a different insight into equipment performance:
Vibration monitoring: Identifies potential mechanical issues such as bearing wear, misalignment, imbalance, loose components and cavitation.
Temperature monitoring: Highlights overheating, developing bearing problems, cooling issues and sustained motor overload.
Motor current monitoring: Helps identify changes in motor load, potential blockages, increased mechanical resistance or pumps running dry.
Variable speed drive data: Provides valuable operational information, including motor speed, torque, power consumption, operating hours and fault history. Much of this data is already available through existing drives and industrial networks.
Why Combining Data Matters
A single monitoring signal can indicate that something has changed. Combining multiple signals helps identify what might be causing the problem.
For example:
- Rising vibration and bearing temperature may indicate a developing bearing fault.
- Increasing vibration and falling current could indicate cavitation or dry running.
- Increasing current and torque may suggest a blockage or additional mechanical resistance.
- Vibration occurring only within certain speed ranges may indicate mechanical resonance.Variable speed drive data also provides operating context, helping maintenance teams interpret readings more accurately and reduce unnecessary alarms.
Tracking these measurements over time through a SCADA system or historian can reveal developing faults before they trigger equipment failure.
The Business Benefits of Predictive MaintenanceCombining equipment monitoring data can deliver significant operational benefits:
- Reduced downtime: Identify potential failures before they disrupt production.
- Lower repair costs: Prevent secondary damage to bearings, seals and other components.
- Improved maintenance planning: Prioritise assets that show signs of deterioration.
- Better spare parts management: Plan replacements ahead of equipment failure.
- Energy efficiency: Use drive power data to identify opportunities to improve pump performance.How to Get StartedYou don’t need to monitor every motor or pump on site.
Start by identifying critical equipment where unexpected failure would have the greatest impact. Introduce vibration and temperature monitoring, access existing current and drive data, establish normal operating baselines and integrate the information into your existing SCADA or historian system.
ISO 17359 provides guidance on establishing condition monitoring programmes.
Importantly, monitoring data must be regularly reviewed, with clear responsibility for investigating alarms and coordinating maintenance.
Turning Equipment Data into Better DecisionsCombining vibration, temperature, current and drive data gives manufacturers a more complete understanding of equipment performance.
By making better use of existing industrial data and monitoring technology, businesses can move from reactive repairs towards predictive maintenance, improving equipment reliability and reducing unplanned downtime.
The real value of equipment monitoring isn’t simply collecting more data. It’s understanding what that data is telling you and acting before a problem becomes a production issue.
Want to improve equipment reliability and make better use of your industrial data?
Contact BONNER to discuss industrial automation, instrumentation and equipment monitoring solutions.