Hoenle EPSA 80 Electronic UV Power Supply
| Brand | Hoenle |
|---|---|
| Origin | Germany |
| Model | EPSA 80 |
| Input Voltage | 400–480 V AC, 50/60 Hz |
| Output Power Capacity | Up to 32 kW |
| Control Range | 12–100% continuous dimming |
| Cooling | Integrated forced-air cooling |
| Footprint Reduction | ~50% vs. conventional units (for 10-lamp systems) |
| Weight | Reduced vs. conventional magnetic ballast-based supplies |
| Fault Diagnostics | Comprehensive real-time monitoring and reporting |
| Reignition Performance | Enhanced arc stabilization and restrike reliability |
| Cable Requirement | Minimized wiring complexity |
Overview
The Hoenle EPSA 80 is a fully electronic, high-frequency AC power supply engineered specifically for industrial ultraviolet (UV) curing systems utilizing medium-pressure mercury or metal-halide discharge lamps. Unlike traditional electromagnetic ballasts, the EPSA 80 employs advanced IGBT-based inverter technology operating at frequencies above 20 kHz to deliver stable, precisely regulated sinusoidal current to UV lamps. This architecture eliminates magnetic core losses, reduces harmonic distortion, and ensures superior lamp power factor correction—resulting in up to 10% higher effective UV radiant output per unit of grid input energy. Designed for integration into multi-lamp UV curing lines (e.g., web coating, inkjet printing, and conformal coating systems), the EPSA 80 supports scalable configurations from single-lamp operation up to 32 kW total load capacity. Its compact footprint—approximately 50% smaller than legacy systems serving equivalent 10-lamp arrays—enables retrofitting into space-constrained production environments without structural modification.
Key Features
- Full electronic control with continuous 12–100% dimming capability, enabling precise process tuning for variable line speeds and substrate sensitivities
- Integrated forced-air cooling system with thermal sensors and adaptive fan speed control, ensuring stable operation under sustained high-load conditions
- Comprehensive fault diagnostics including lamp open-circuit detection, short-circuit protection, overtemperature shutdown, and arc instability logging
- Enhanced reignition functionality with optimized voltage ramp-up profiles and pre-ionization pulses, minimizing lamp restrike time and extending electrode life
- Reduced cabling requirement due to centralized control architecture and integrated communication interfaces (RS-485, optional EtherCAT)
- Robust mechanical design compliant with IP20 enclosure rating and CE/EMC Directive 2014/30/EU for industrial electromagnetic compatibility
Sample Compatibility & Compliance
The EPSA 80 is compatible with standard medium-pressure UV lamps rated for 80–320 W per lamp (depending on configuration), including Hönle’s proprietary UVA, UVV, and UVC spectral variants. It supports both linear and compact arc tube geometries with nominal arc lengths from 100 mm to 1,200 mm. The unit meets IEC 61000-3-2 (harmonic current emissions), IEC 61000-4-2/4/5/6 (electrostatic discharge, EFT, surge, and conducted immunity), and conforms to UL 61010-1 and EN 61010-1 safety standards for electrical equipment used in laboratory and industrial settings. While not inherently FDA 21 CFR Part 11-compliant, its digital interface supports integration into validated manufacturing execution systems (MES) where audit trail and user access control are managed at the supervisory level.
Software & Data Management
The EPSA 80 operates autonomously but provides bidirectional communication via RS-485 Modbus RTU as standard, allowing integration into PLC-based automation platforms (e.g., Siemens S7, Rockwell ControlLogix). Optional EtherCAT interface enables real-time synchronization with motion controllers in high-speed web applications. Operational data—including lamp voltage/current waveforms, power delivery efficiency, thermal sensor readings, and event logs—is timestamped and exportable for quality documentation. When deployed within GMP or ISO 9001-certified facilities, the device supports traceability requirements through configurable logging intervals and external database archiving. Firmware updates are performed via secure USB interface with version rollback capability.
Applications
- UV-curable ink drying in flexographic, gravure, and digital inkjet printing presses
- Adhesive and conformal coating curing on electronics assemblies and medical devices
- Surface functionalization of polymers and composites in automotive and aerospace component manufacturing
- 3D printing resin photopolymerization in industrial additive manufacturing systems
- Photochemical synthesis and UV-assisted surface grafting in pilot-scale chemical processing
FAQ
What lamp types are supported by the EPSA 80?
The EPSA 80 is designed for medium-pressure mercury and metal-halide UV discharge lamps with nominal power ratings between 80 W and 320 W per lamp. Compatibility includes standard quartz arc tubes with electrode configurations meeting DIN 40729 and IEC 60968 specifications.
Does the EPSA 80 require external cooling water?
No—cooling is provided by an integrated forced-air system with intelligent thermal management; no external chiller or water loop is required.
Can multiple EPSA units be synchronized for phase-coherent operation?
Yes—via master-slave configuration using RS-485 or EtherCAT, enabling precise phase alignment across multi-zone UV curing lines.
Is remote firmware update supported over network connection?
Firmware updates must be performed locally via USB interface; network-based updates are not implemented for security and validation integrity reasons.
What is the expected service life under continuous industrial operation?
Rated for >50,000 hours MTBF (mean time between failures) under ambient temperatures ≤40 °C and relative humidity ≤80% non-condensing, per IEC 62380 reliability prediction methodology.
