DMA 45A 1103-D

The Bosch Rexroth Indramat DMA 45A 1103-D module from the DMA Servo Drive Modules series delivers high-performance three-phase drive control in a compact plug-in housing. It mounts directly onto a backplane module and operates in master or slave configurations with a slim width of 50 mm and an overall height of 521 mm, optimising cabinet space. The device is designed for symmetrical supply networks with a maximum short-circuit current rating of ≤ 10 kA and supports an Input Voltage of 670 V as well as an Output Voltage of 400 V. A dedicated air-cooling system prevents overheating, ensuring continuous operation under demanding industrial load cycles.

Safety is guaranteed by a redundant two-channel safety structure, and the inverter must be used in environments with pollution severity of degree 2 and climatic category 3K3 conforming to EN 60721 specifications. The module incorporates a non-regulated 715 VDC link voltage and draws 1.32 A at 24 VDC for its control logic, offering stable low-voltage power. Two high-efficiency backplane cooling fans maintain optimal internal temperatures, while the inverter handles a maximum output current of 45 A at 2 kHz switching frequency. All power and encoder cables are protected with an external TPU sheath, safeguarding against mechanical wear, chemical exposure, and electromagnetic interference.

Advanced connectivity is provided via a fault-resistant SERCOS interface with optical fibres for deterministic real-time processing, alongside dedicated speed, interpolation, and position interfaces for seamless integration into automated systems. The programmable personality module stores the operating system and inverter-specific data, and can be expanded with an optional memory card as a removable storage medium. The drive withstands acceleration up to 0.7 g in the 13.3 Hz to 48.6 Hz range, ensuring reliable performance under vibration. Each unit ships with a one-year warranty, making the DMA 45A 1103-D an optimal choice for high-precision manufacturing and process automation requiring robust and fault-tolerant servo control.