Safety Light Curtains for Access Control in RABS Systems
Light curtains used within Restricted Access Barrier Systems (RABS) are a critical component of aseptic safety and process control. Their primary function is to detect intrusion into controlled areas without physical contact and immediately transmit a signal to the RABS control system.
In pharmaceutical filling, packaging, and processing lines, light curtains are installed to protect access openings, service areas, and operator interaction zones. When the light beam is interrupted, the system can trigger predefined actions such as process interlocking, equipment stop, alarm generation, or event recording in the audit log.
The design of the light curtains is adapted for cleanroom operation: sealed housings, smooth surfaces, and resistance to disinfectants allow use under frequent cleaning and sanitation procedures. The curtains are integrated into the RABS frame and connected to PLC systems or proprietary control software.
📌 Functional Capabilities:
- non-contact access monitoring of aseptic zones;
- immediate detection of operator intervention;
- automatic interlocking of doors or process operations;
- integration with interlock systems;
- signal transmission to HMI, SCADA, or local controllers;
- registration of all events and deviations in the Audit Trail;
- support for data integrity requirements.
Light curtains are used in:
- RABS systems for aseptic filling;
- pharmaceutical isolators and barrier modules;
- cleanrooms of Grade B and C with Grade A working zones;
- filling, capping, packaging, and sampling lines.
Light curtains for RABS systems are an essential element of modern aseptic safety concepts. They provide intelligent access control, enhance barrier integrity, and enable full documentation of all interventions in compliance with pharmaceutical regulations.
📩 Contact us to select light curtains optimally integrated into your RABS system and receive a validation-ready technical solution.