DM 45K 1301-D Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DM 45K 1301-D is part of the DM Servo Drives series and weighs 6.7 kg. This drive features an output voltage of 400 VAC and an air cooling method. It supports a resolver encoder interface with 12-bit resolution and has a SERCOS setpoint interface.
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Product Description:
The DM 45K 1301-D servo drive is produced by Bosch Rexroth Indramat as part of the DM Servo Drives series. It regulates three-phase AC motors in automated machinery by converting a stabilized DC bus into variable-frequency output. Command data reach the unit through a SERCOS setpoint interface, enabling time-deterministic coordination with the main controller. Rotor position feedback is accepted through a resolver interface and is processed with 12-bit resolution, giving adequate angular granularity for mid-range positioning tasks. This feedback arrangement also helps the drive maintain stable speed regulation when load conditions change during operation. An internal air cooling path removes heat from switching losses so the drive remains within its thermal limits inside a control cabinet.
At the control-electronics level, the drive draws 1.4 A from the 24 V auxiliary supply. During fast acceleration, the power stage can deliver up to 47.5 Arms when the PWM carrier is set to 4 kHz, or 35 Arms at 8 kHz; the lower current at the higher switching rate reduces semiconductor heating. The output frequency can reach 800 Hz, supporting high-speed spindles and compact servomotors. Thermal dissipation under worst-case conditions is limited to 205 W, a figure used to size cabinet ventilation. In continuous service, the unit supplies 16.5 Arms at an 8 kHz carrier and operates from a regulated 670 VDC intermediate circuit that keeps the output voltage constant during load transients.
Cabinet planning is simplified by a module width of 75 mm and a mass of 6.7 kg, allowing side-by-side mounting without overloading standard DIN rails. The narrow housing also leaves useful space for cable bends and adjacent modules in compact multi-axis cabinets. The output bridge is rated for 400 VAC, matching common three-phase mains, while energy is stored on a non-regulated DC link that can rise to 715 VDC during regeneration. A continuous capability of 23.5 Arms at a 4 kHz carrier provides steady torque for gantry axes and tool changers. The compact profile and forced air path permit dense installation without external heat sinks.
Frequently Asked Questions about DM 45K 1301-D:
Q: What type of encoder interface and resolution does the DM 45K 1301-D use?
A: This drive uses a resolver interface for encoder feedback, providing a resolution of 12 bits.
Q: What is the maximum output frequency of the DM 45K 1301-D servo drive?
A: The DM 45K 1301-D offers a maximum output frequency of 800 Hz for controlling servo motors.
Q: What is the output voltage of the DM 45K 1301-D from Bosch Rexroth Indramat?
A: The rated output voltage provided by this drive is 400 VAC.
Q: How is the DM 45K 1301-D servo drive cooled?
A: This model utilizes air cooling as its cooling method.
Q: What is the maximum overload current at 4 kHz on the DM 45K 1301-D?
A: The maximum overload current at a switching frequency of 4 kHz is 47.5 Arms.
