Conveyor builders who mount the drive at the section rather than in a central cabinet get their wiring problem solved twice over by this build: the SINAMICS G115D 2XH61-1AB0 takes 400 V AC power through a cable gland and 24 V DC from its own integrated PSU, puts I/O on M12 connectors, and needs no fieldbus at all — local I/O with local/remote switching runs the section on its own.

Why does gland wiring plus an integrated 24 V PSU matter on a distributed drive?

Because both ends of the wiring run are outdoors by design. The gland entries seal the 380 x 216 x 129 mm IP65/66 housing without connector plates, the integrated 24 V DC supply feeds sensors and controls without a separate power supply cabinet, and the M12 I/O ports let each section plug together the way the conveyor does — mechanically and electrically in the same step. Natural convection cooling removes the fan, so there is no filter mat to service on a drive bolted next to the belt.

When is the no-fieldbus build the right order number?

When the section has nothing to report to yet: standalone segments, spares stock for lines that run on hardwired I/O, and installations where the network decision has simply not been made. Local/remote switching and sensorless vector control keep the 1.1 kW motor fully managed — 3.1 A rated in LO duty with 6.2 A available in HO, 200% for 3 s on belt starts — and if a network arrives later, the same housing exists as the 1AA0 (AS-Interface) or 1AF0 (PROFINET) build with identical mounting.