When a small roller needs a drive but the safety chain is hardwired, what connects?

PROFINET is onboard, and STO is handled over hardwired F-DI safety terminals — no PROFIsafe F-address. The 6SL3520-2XC00-3AA0 is a native SIMATIC/TIA node over PROFINET without a safety-network license, so it fits lines that already run STO through F-DI or a separate safety relay. An alternative order code, 6SL3520-2XC00-3AB0, covers the same 0.37 kW standard-PROFINET drive.

What overload does a 0.37 kW roller need?

Roller duty is intermittent, so the drive is rated 200% of current for 3 s and 150% for 57 s. An integrated braking resistor is standard, so decelerating a light belt is handled without an external module, in a 380 x 156 x 129 mm FSA housing rated -30 to +55 C.

Why distribute the drive to the machine?

At IP66 it bolts to the frame with no enclosure and no long motor cable back to a central drive — lower cable cost and no cabinet-cooling load.