1070077600-201 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat 1070077600-201 is a servo drive in the DM Servo Drives series with a rated current of 2.5 Arms at 8 kHz and a maximum power loss of 96.5 W. It offers multi-turn resolution of 32 bits, a single-turn resolution of 20 bits, and a resolver resolution of 12 bits. The drive features a regulated DC link voltage of 670 VDC and supports a setpoint interface using SERCOS.
Internal Product Review
The 1070077600-201 is a Bosch Rexroth Indramat DM servo drive with a SERCOS setpoint interface and an 8 kHz factory switching frequency. A 670 VDC regulated DC link paired with a 715 VDC non-regulated DC link supports stable power handling in demanding motion systems. Single-turn resolution of 20 bits gives the drive impressive positioning performance.
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Product Description:
The 1070077600-201 servo drive is produced by Bosch Rexroth Indramat for the DM Servo Drives series. It regulates synchronous or asynchronous servomotors in automated machinery by converting SERCOS motion commands into controlled phase currents. Serving as a central axis amplifier, it coordinates torque, speed, and position in multi-axis manufacturing lines where deterministic communication and high-resolution feedback are required. This arrangement lets the controller manage coordinated motion profiles without losing synchronization between axes during complex machine cycles.
Inside the control section, the drive’s logic rails draw only 0.89 A from the 24 V auxiliary supply, which helps limit panel demand. Power devices switch at a factory-set frequency of 8 kHz, and the current loop is rated for 2.5 Arms at that carrier frequency, providing predictable thermal behavior. Energy is stored on a nonregulated bus of 715 VDC and later stabilized to 670 VDC, while the converter dissipates up to 96.5 W under continuous load. The setpoint interface uses SERCOS for synchronous update cycles, while the resolver channel supplies 12-bit rotor position data at startup. An incremental factor of 4× and an interpolation factor of 20× shape the velocity feedback delivered to the current controllers. Separate startup position data from the resolver helps establish rotor alignment before high-precision encoder processing takes over.
High-resolution feedback is refined by multi-turn counting at 32 bits and single-turn accuracy of 20 bits, enabling absolute positioning across extended travel. Incremental encoder pulses are accepted up to 1 MHz, and the sine encoder port processes fundamentals of 50 kHz. When a sine/cosine transducer is connected, internal interpolation raises native line counts by 4096× and accepts carrier frequencies up to 800 kHz, allowing smooth motion even at low shaft speeds. The combination of absolute counting and interpolation helps the drive maintain fine position resolution across both short moves and long travel paths. This feedback chain suits precision packaging, pick-and-place, and electronic assembly equipment that require tight contouring accuracy.
