DMA 085B 7301-D
The DMA 085B 7301-D is a cold module engineering unit produced by Bosch Rexroth Indramat, which employs synchronous and asynchronous motors in tandem with inverters via DC linked three-phase modules. This model employs 2 fans (RMB/DM type) for air cooling and is suitably housed inside the protective switch cabin. The DMA 085B 7301-D abides by an IP54 safety category, featuring air dust filters designed for Servodyn-D cooling three-phase modules. The 7301 model includes a CANrho resolver encoder interface and standard cooling features to complement the synchronous motors and inverters inside the switch cabin. The model has a 20 bit single turn encoder and a 12 bit resolver, with provision for integrating a 32 bit multi-turn encoder. Operational efficiency demands a DC link voltage of 670VDC for the regulated module and 715 VDC for the non-regulated one. Maximum currents are 86arms for OL and 64 arms for CL with the model tolerating temperatures between 0°C to +45°C. Weighing 11.5kg and measuring 100mm wide, the model can function optimally up to 1000 meters above sea level.
