DMA 85B 9301-D Bosch Rexroth Indramat
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MPN: 1070083687
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The Bosch Rexroth Indramat DMA 85B 9301-D is a 3-phase servo drive module from the DMA Servo Drive Modules series. It features air cooling via the backplane, supports CANopen and CANrho interface options, and uses a resolver encoder interface. This standard variant has a module width of 100 mm and is suitable for synchronous and asynchronous motors.
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Product Description:
The DMA 85B 9301-D is a servo drive module manufactured by Bosch Rexroth Indramat within the DMA Servo Drive Modules series. It is engineered to regulate three-phase synchronous or asynchronous motors in factory automation cells. By creating precise pulse patterns for the connected windings, the module links motion axes to higher-level PLCs and delivers controlled torque and speed for indexing tables, material-handling units, and packaging stations. This gives the drive a central role between the control system and the motor during acceleration, deceleration, and steady-speed operation.
At a cabinet width of 100 mm, the module fits narrow multi-axis racks without compromising airflow. Heat is removed by backplane air cooling, meaning an integrated fan drives air across the rear heat sink and into the cabinet plenum. Because the cooling path is routed through the backplane, the rear section of the cabinet must remain clear enough for stable air movement. Position feedback is accepted through resolver feedback, which supplies continuous sine and cosine signals so the control loop can determine rotor position during operation. Command and diagnostic traffic is exchanged over CANopen and CANrho fieldbus channels, allowing cyclic setpoints and real-time status words to travel on a shared physical layer. The unit is part of the Servodyn-D drive line, so its control behavior follows the platform used for that range.
The module is supplied in a standard variant without application-specific add-on cards. Internally, the power stage uses a 3-phase module layout, and that arrangement supports balanced current sharing on a common DC bus with neighboring axes. The base configuration leaves external cabinet functions such as separate safety relays or I/O expansion to other system components instead of integrating them into this drive channel. This layout keeps the drive focused on motor regulation, feedback processing, and fieldbus communication within a multi-axis installation.
Frequently Asked Questions about DMA 85B 9301-D:
Q: How is the DMA 85B 9301-D servo drive module cooled?
A: This drive uses air cooling via its backplane to regulate temperature during operation.
Q: What type of encoder interface does the DMA 85B 9301-D support?
A: The DMA 85B 9301-D features an integrated resolver interface for positioning feedback.
Q: What interface options are included on the DMA 85B 9301-D?
A: CANopen and CANrho communication interfaces are provided on this module.
Q: What is the module width of the DMA 85B 9301-D?
A: This module has a width of 100 mm, facilitating integration into control cabinets.
Q: Does the DMA 85B 9301-D have any additional functional modules present?
A: The DMA 85B 9301-D is built as a standard variant with no additional functions.
