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Control & Monitoring as Part of the Overall System
Modern extraction and filter systems consist of more than just a fan and a filter. Control systems, sensors, and monitoring significantly influence operational behavior, energy consumption, and system availability. Depending on the application, simple switching functions may be sufficient, or demand-based control with multiple signals may be required.
Typical Tasks
✔ Turn fans on and off or adjust their speed
✔ Control filter cleaning
✔ Measure pressure, differential pressure, or other conditions
✔ Report malfunctions and exceedances of limit values
Components and Function
| Component | Typical Task |
|---|---|
| filter control | Coordinate cleaning and filter conditions |
| fan control | Engage the drive or operate it as needed |
| variable frequency drive | Adjust the rotational speed and, consequently, the system’s performance |
| Sensors | Recording Process and Equipment Conditions |
Planning and Interfaces
Motor specifications, supply voltage, input and output signals, and existing sensor systems must be compatible with the control system. When retrofitting existing systems, existing circuit diagrams and interfaces should be taken into account.
Safety and ATEX
In areas at risk of explosion, the suitability of individual components must not be assumed across the board. Control systems, sensors, and electrical equipment must be compatible with the respective explosion protection concept and risk assessment.
FAQ
When is speed control worthwhile?
Demand-based control can be particularly useful when air demand fluctuates.
What can be monitored?
Depending on the system design, these may include, for example, pressure conditions, filter loading, motor status, or enable signals.
Can an existing system be retrofitted?
Often yes, provided that the drive system, electrical system, and existing interfaces are technically suitable.
Selection Guidance
When making a selection, information regarding the system, motor power, operating mode, existing sensors, and desired control functions is particularly important.
