Electronic
Pneumatic Level Control EPN

• Successor of the proven EPN control system (retrofit)
• Control of 3 degrees of freedom per control unit
• Height detection via potentiometer or non-contact sensor
• Position accuracy < ± 0.01 mm
• Control of air springs via proportional valves
• Compatible with BiAir® membrane air springs
• Compatible with FAEBI® rubber air springs with additional filter
• Adjustable system parameters via PID controller
• Low deflections and settling times during load changes
• Intelligent browser-based interface
• Visualization (WebVisu) for adjustment and diagnostics
• Remote maintenance possible
• Industry 4.0 interface can be implemented
• Shutdown to safe state even in case of power failure or pressure loss
• No disturbing heat generation, magnetic field changes or high power consumption compared to electromagnetic actuators

The EPN is designed as an integrated central control system including the proportional valves to minimise the space required on machine side and the reduce installation effort. Only the hoses to the air springs, as well as the cables to the displacement transducers, are to be attached directly to the machine.

Three control circuits can be monitored and controlled independently of each other using a PID controller. Height sensing takes place per control circuit and is processed with 16 bits. A potentiometer or non-contact sensor is available as standard. The system also has pressure monitoring for each control circuit and the air supply.

The parameters can be set via a web interface for easy commissioning.

Communication with a higher-level control system can take place via digital inputs/outputs as well as via a separate bus interface.

The EPN is optimized for the cost-efficient implementation of electro-pneumatic level control on machines.

• High leveling accuracy
• Dynamic use cases
• Production machines
• Measuring machines