DMA 85B 1301-D Bosch Rexroth Indramat
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MPN: 1070081572
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The Bosch Rexroth Indramat DMA 85B 1301-D is a 3-phase servo drive module in the DMA Servo Drive Modules series and is a standard variant. It uses air cooling via the backplane, features a resolver encoder interface, and supports the SERCOS interface. The module measures 100 mm in width and is suitable for use with both synchronous and asynchronous motors.
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Product Description:
The DMA 85B 1301-D is a servo drive module manufactured by Bosch Rexroth Indramat for the DMA Servo Drive Modules series. It plugs into a Servodyn-D backplane rack and serves as the power conversion element between a shared DC link and individual motor phases. This arrangement supports centralized control of multiple synchronous or asynchronous axes in machining cells, packaging equipment, and material-handling stations. In operation, the module works as one axis within a larger rack system, where several drives can be grouped under the same control architecture and supply infrastructure.
This module uses backplane air cooling, so ambient air drawn through the rack removes switching losses without dedicated fans on the front panel. A housing width of 100 mm sets the single-slot space it occupies and simplifies cabinet layout calculations when several axes are installed side by side. Command and diagnostic data move across a SERCOS interface, so the axis can exchange cyclic setpoints and feedback with compatible motion controllers over fiber optics. Rotor position signals are expected from a resolver, enabling sinusoidal commutation on motors that do not use digital encoders. As a three-phase module for synchronous and asynchronous motors, the unit supplies pulse-width-modulated currents suited to either motor type without hardware changes. This helps the same rack platform serve different motor configurations within one machine.
The additional-function slot is empty, so no auxiliary logic boards are mounted. Within the broader Servodyn-D series, this drive is supplied as the standard variant, which supports basic torque, velocity, and position control functions for general-purpose automation. Its rack-based format keeps control and power modules organized in a common enclosure, which supports orderly wiring and consistent axis integration across the system. The module is intended for applications that need a straightforward servo axis without optional expansion hardware installed at the drive level.
Frequently Asked Questions about DMA 85B 1301-D:
Q: What interface options are available on the DMA 85B 1301-D servo drive module?
A: This model is compatible with the SERCOS interface for communication.
Q: What type of encoder interface is provided on the DMA 85B 1301-D?
A: The DMA 85B 1301-D uses resolver feedback for its encoder interface.
Q: What cooling method is used in the DMA 85B 1301-D drive module?
A: Cooling for this unit is managed by an air cooling system via the backplane.
Q: What is the module width of the DMA 85B 1301-D?
A: The DMA 85B 1301-D servo drive module has a width of 100 mm.
Q: Are any additional functions included on the DMA 85B 1301-D?
A: There are no additional functions present on this standard variant.
