DM 45K 9101-D Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DM 45K 9101-D is part of the DM Servo Drives series and has a mass of 6.7 kilograms and a module width of 75 millimeters. It features an input voltage of 670 V DC with an input current of 17 Amps and delivers an output current of 16.5 Amps at 3-phase 400 V. The drive supports CANopen/CANrho protocols and provides encoder interfaces with 20-bit and 32-bit resolutions, while operating at a switching frequency of 8 kHz.
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Product Description:
The DM 45K 9101-D is a servo drive delivered by Bosch Rexroth Indramat within the DM Servo Drives series. It regulates three-phase motors in modular automation lines, converting a high-energy DC link into controlled AC while exchanging setpoints with motion controllers over a fieldbus. In this role the product supplies precisely timed voltage to the motor stator so that position, speed, and torque profiles demanded by CNC or PLC systems are achieved.
The drive is powered from a DC bus of 670 V DC and draws up to 17 A DC during peak load regeneration. Its inverter produces a nominal output of 3ph 400 V at continuous phase current of 16.5 A, and the IGBTs are pulsed at 8 kHz to limit current ripple. Setpoints reach the controller through a CAN Bus port, while status and diagnostics follow the CANopen or CANrho messaging defined under the specified CAN protocols. Feedback is accepted through either an STG or MTG encoder interface, letting the loop close with 20-bit SinCos or 32-bit multiturn data depending on feedback selection. The additional-function field is listed as none, so the module focuses only on axis control without integrated safety or brake management.
A separate logic rail demands 1.4 A at 24 V to power the DSP, gate drivers, and communications hardware. During full cyclic operation the thermal budget peaks at 205 W, a figure used to size cabinet airflow. The housing spans 75 mm in width, carries a mass of 6.7 kg, and is rated IP20, allowing installation in enclosed panels where ambient dust and touch protection are already managed. Internally, command values can be interpolated to a motion-task resolution of 32 bits, while the secondary STG stage maintains 20-bit feedback granularity so fine positioning error remains within tight servo tolerances.
Frequently Asked Questions about DM 45K 9101-D:
Q: What is the input voltage requirement for the DM 45K 9101-D servo drive?
A: The DM 45K 9101-D servo drive features an input voltage requirement of 670 V DC.
Q: What is the maximum output current of the DM 45K 9101-D?
A: This model supports a maximum output current of 16.5 A for connected loads.
Q: Which communication protocols are supported by the DM 45K 9101-D?
A: The drive communicates via CANopen and CANrho protocols through its CAN Bus interface.
Q: What is the module width of the DM 45K 9101-D servo drive?
A: This servo drive has a module width of 75 mm, allowing for compact installation in control cabinets.
Q: What level of protection does the DM 45K 9101-D provide?
A: The protection class of the DM 45K 9101-D is IP20, meaning it is protected against solid objects greater than 12.5 mm but not against water.
