DM 45K 5111-D Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DM 45K 5111-D is part of the DM Servo Drives series and has a mass of 6.7 kilograms with a module width of 75 millimeters. It operates with a rated current of 16.5 A RMS at a switching frequency of 8 kHz and supports an input voltage of 670 V DC with 17 A DC input current. The drive features air cooling, 24 V control signals, and supports an encoder interface of either STG or MTG with resolutions up to 32 bits.
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Product Description:
The DM 45K 5111-D is a servo drive manufactured by Bosch Rexroth Indramat for the DM Servo Drives series. It acts as an electrical interface between a central motion controller and a single motor, executing single-axis positioning commands by converting a shared DC link into precisely modulated three-phase power. Designed for industrial automation, the unit governs speed, torque, and position so that packaging, handling, or assembly equipment maintains repeatable movement even under changing mechanical loads.
The incoming link operates at 670 V DC, and the drive draws up to 17 A DC from this source. Its motor terminals deliver 3-phase 400 V through pulse-width modulation at a switching frequency of 8 kHz, and under this carrier the continuous current capability reaches 16.5 A RMS. Logic functions are handled through 24-volt control signals, while a dedicated 24-volt auxiliary supply requires 1.4 A to power relays and diagnostics. Air cooling removes the heat generated by the power stage, and the power loss is limited so that forced ventilation inside a control cabinet is sufficient.
The housing measures 75 mm wide and weighs 6.7 kg, allowing dense rack installation without excessive load on panel hardware. When ambient temperatures rise above 45 °C, output capability is reduced by 0.5 A/K to protect the semiconductors. Position feedback is accepted through STG or MTG encoder links; the STG path supports 20-bit resolution and the MTG option extends to 32 bits for closed-loop accuracy. Under full regenerative braking or rapid acceleration, thermal limits total power dissipation to 205 W, and the airflow channel directs this heat away from neighboring electronics to support reliable operation during continuous duty cycles.
Frequently Asked Questions about DM 45K 5111-D:
Q: What is the input voltage required for the DM 45K 5111-D servo drive?
A: The DM 45K 5111-D operates with an input voltage of 670 V DC, designed for high-voltage industrial environments.
Q: Which encoder interfaces are compatible with the DM 45K 5111-D?
A: This drive supports both STG and MTG encoder interfaces for flexible feedback options.
Q: What is the rated output current of the DM 45K 5111-D servo drive?
A: The DM 45K 5111-D provides a rated current of 16.5 A RMS at an 8 kHz switching frequency.
Q: How is the DM 45K 5111-D servo drive cooled?
A: Cooling is achieved through air cooling, promoting effective heat dissipation without additional liquid systems.
Q: What type of positioning function does the DM 45K 5111-D support?
A: This model is designed for one axis positioning tasks, making it suitable for precise individual axis control.
