How does Siemens’ new low-voltage drive help warehouse robots run longer on a battery?

Siemens’ Sinamics E210 converter and Simotics E-1EE1 servomotors (shaft heights 40 to 63) form a coordinated extra-low-voltage drive for 24V and 48V battery-powered AGVs, autonomous mobile robots and driverless transport systems, integrated into TIA Portal and the Simove system. Matched motor-plus-converter efficiency is runtime: less energy lost as heat means more work per charge. Here is what a small warehouse should check before upgrading a fleet.

Short answer: a drive is the team of parts that turns battery power into wheel movement — a converter (the electronics that meter out power) plus the motors that spin the wheels. Siemens’ new package pairs the Sinamics E210 converter with Simotics E-1EE1 servomotors, in shaft heights 40 to 63, as one coordinated extra-low-voltage system for 24-volt and 48-volt battery vehicles: AGVs, autonomous mobile robots and driverless transport systems. Because the converter and motors are designed and tuned for each other, less battery energy is wasted as heat — and wasted energy is exactly what shortens a warehouse robot’s working shift.Why it matters: on a battery vehicle, efficiency is runtime.

A drive that turns 90 percent of battery energy into motion instead of 80 percent sounds like a small difference, but across hundreds of starts, stops and lifts in a shift it is the gap between finishing the day and queuing for a charger at noon. The E210 is also regenerative, feeding energy back during braking, and it integrates into Siemens’ TIA Portal engineering environment and the Simove system for mobile robots, so one proven setup can be copied across a whole fleet.What a small warehouse should check before upgrading, step by step:1. Match the voltage: confirm your vehicles run 24V or 48V battery systems — this drive is built for those, not for higher-voltage machines.2.

Measure today’s losses: log how long each robot runs per charge and how much shift time charging steals; that is the number a more efficient drive has to beat.3. Count every axis: traction and steering, but also lifting and auxiliary axes — the E210 is designed to control all of them from one converter family.4. Pilot one vehicle first on your real routes and compare runtime before committing the fleet budget.Pro tip: the common mistake is upgrading motors alone.

A mismatched converter can waste everything a good motor saves — the gains live in the pairing, which is the entire point of a coordinated drive.