Standalone usually implies small — and that assumption is exactly what the 2XH67-5AB0 build of the SINAMICS G115D corrects: 7.5 kW, 19 A rated in LO duty and 38 A in HO, running on local I/O with local/remote switching, no fieldbus stack, in the largest fan-cooled housing of the gland-and-PSU family.

When does a 7.5 kW section genuinely need no network?

When it is the process. Loading stations, test rigs and standalone incline sections often run a fixed cycle under local control for years — the PLC integration would carry exactly one start command and one fault signal. Local I/O handles that with nothing to commission: set the parameters, wire the local panel through the M12 ports, and the section runs. The integrated 24 V PSU powers the local controls, and the local/remote switch hands the section to maintenance without touching the interlock.

What does the fan-cooled FSC frame add to the standalone picture?

Current headroom, and one service habit. Forced air is what lets a wall-mounted housing carry 38 A in HO duty, and the fan intake is the single item to keep clear on a unit mounted beside the belt. Everything else is family standard: 200%/3 s and 150%/57 s overload for loaded starts, the integrated C2 filter, IP65/66 / UL Type 4X sealing, and the 425 x 240 x 169 mm dimensions shared with the networked 7.5 kW builds — so a future network retrofit is a bolt-in swap, not a redesign.