Motor-integrated and near-motor IndraDrive Mi electric drives integrate right into machines. These plus other Bosch Rexroth technologies now let designers build compact, cabinet-free machines that are more modular than ever.

More specifically, Bosch Rexroth decentralized supply and mains modules let machine builders integrate all drive components directly into the machine without a control cabinet. The supply and mains modules (like the drives) are IP65 rated. The mains module includes a mains filter, mains regulator and the mains protection in one device. The energy-recovering power supply, control electronics, brake resistor and brake transistors are in the supply module. Benefits include 90% less wiring during assembly. More after the jump.

Up to 20 IndraDrive Mi units connect in series in a cable harness to 200 meters long, so controls can switch more of the drives in series, depending on power consumption, cable length and selected options. In adjacent drives, hybrid connectors (for communication and power) reduce assembly work.

Rexroth also supports modular machine builds with standardized communication ­— ProfiNet, EtherNet/IP and EtherCAT all on one piece of hardware with a Multi-Ethernet interface via Sercos. (Designers pick which with software.) Connection to Profibus via Gateway is also possible.

Machine builders can complete modular designs by reallocating control functions to individual machine modules with drive-integrated controls from Rexroth. These perform drive functions, motion control and flow logic on an open automation platform. IEC 61131-3 standards-based motion logic controls complex motion tasks; the drive-based control coordinates up to nine IndraDrive Mi units as slaves in real time.

For more information, visit boschrexroth-us.com.