The ABB 2TLA822201R9200 is the FRII-4-30-600 receiver, the optical receiving half of a safety light curtain system. It pairs with a matching transmitter to create an electro-sensitive protective device (ESPD) guarding a hazardous area — typically a machine cell access point, robot work envelope, or press brake zone. The receiver detects the infrared light beam from the transmitter; any interruption of that beam signals the safety circuit to stop the machine.
Deployment context
The FRII-4-30-600 receiver mounts opposite its transmitter. The 30 mm resolution and 600 mm protected height define the detection zone.