1070080954-202 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat 1070080954-202 is part of the DM Servo Drives series and features a compact mechanical format with air cooling. This drive supports a SERCOS setpoint interface, has a continuous max current of 15 Arms at 4 kHz, and operates with a DC link voltage of 715 VDC non-regulated. It offers a 32-bit mounting position resolution and has a maximum power loss of 121 W.
Internal Product Review
The 1070080954-202 is a Bosch Rexroth Indramat DM servo drive with a compact mechanical format and a SERCOS setpoint interface. Air cooling and an 11 Arms continuous rated current at 4 kHz support steady performance in demanding motion applications. A 32-bit position resolution makes this drive especially appealing for precise servo control.
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Product Description:
The 1070080954-202 is a servo drive module manufactured by Bosch Rexroth Indramat for the DM Servo Drives series. It works as the power converter between the DC bus and a three-phase servo motor, executing velocity and torque commands delivered over the SERCOS fiber-optic interface. When installed in a machine cabinet, the unit provides closed-loop motion control for automated picking, forming, or packaging stations where precise axis coordination is required. Its role is to translate control commands into regulated motor output while maintaining stable axis response during changing load conditions.
With a 24 V auxiliary supply, the drive draws 0.89 A for logic and brake-release circuits. With a 4 kHz switching frequency, the current loop can deliver a continuous maximum of 15 Arms; at 8 kHz that limit is 11 Arms because the higher carrier frequency increases switching loss. The thermal steady-state rating is 11 Arms at 4 kHz and 7.4 Arms at 8 kHz, and these values are used to size motor conductors and protective devices. A regulated bus of 670 VDC supplies the IGBT bridge; during regenerative braking, the non-regulated link can rise toward 715 VDC, so connected discharge components must tolerate that level. This arrangement separates low-voltage control power from the high-voltage output stage and supports stable operation during dynamic motion.
Output capability declines with temperature, quantified by derating slopes of 0.32 A/K for 4 kHz operation and 0.23 A/K for 8 kHz operation. Internal conduction and switching losses produce up to 121 W of heat that the specified air-cooling path exhausts without additional fans. The housing stands 430 mm high, allowing dense rack placement while preserving airflow clearance in the compact mechanical format. Encoder processing inside the module provides a multiturn resolution of 32 bits and a single-turn resolution of 20 bits, supporting high-precision interpolation at the controller level. The encoder data gives the control system detailed position information for precise speed and position regulation.
