Product Description:

The DMA 30A 4201-D is a servo drive module developed by Bosch Rexroth Indramat for distributed motion systems that place several axis modules on a shared DC bus. It serves as the power and control stage between a motion controller and either synchronous or asynchronous motors. In automated equipment, it regulates three-phase current, controls torque and velocity, and exchanges operating data with higher-level controls through integrated interfaces. This arrangement lets the motion controller coordinate the machine while the module manages the electrical output required by each assigned axis.

The module occupies 50 mm of rack width, which helps conserve cabinet space in multi-axis layouts where several drives must be mounted side by side. Heat is removed by backplane air cooling, so the wiring side stays clear of front-mounted fan assemblies and access to terminals remains straightforward. For position feedback, the drive accepts a gear encoder signal, which supports closed-loop operation on machines that use belts or gear reductions between the motor and the load. Command references are handled through an analog input with 16-bit resolution, allowing precise setpoint control from a ±10 V source in systems that use conventional analog commands.

The unit is part of the Servodyn-D series and is built as a 3-phase module for synchronous and asynchronous motors. It has no additional functions, so optional digital expansion must be provided by external hardware when an application requires extra I/O or local logic features. This catalog number is supplied in the standard variant, which keeps the base electrical layout and connector arrangement consistent within the product line. The drive fits applications that need compact axis spacing, shared-bus architecture, and support for more than one motor type without adding extra onboard control features.