SM 50/100-T Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SM 50/100-T is part of the SM AC Inverters series and features a rated current of 50 Amps with a peak current of 100 Amps for 2 seconds. The inverter supports a blower supply voltage of 24 V DC and can handle a maximum operating temperature of 55 °C. It has a speed regulating range of 1 to 10,000 and a maximum power loss of 350 Watts.
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Product Description:
The SM 50/100-T inverter is produced by Bosch Rexroth Indramat and belongs to the SM AC Inverters series. It is an AC motor drive that converts fixed-frequency mains power into a variable output, allowing precise velocity and torque control in automated production lines, conveyors, and test stands. By modulating frequency and voltage, the unit lets a PLC or motion controller adjust motor speed without mechanical gear changes, supporting high dynamic response in industrial automation.
The power section delivers a continuous output of 50 A, while short 2-second demands can be met with up to 100 A. Internal fans are fed from a dedicated 24 V DC blower supply and draw only 100 mA, so cabinet auxiliaries remain lightly loaded. The analog velocity reference is received through a differential stage with a 10 kOhm input impedance, minimizing loading on upstream controllers, and the commanded bandwidth spans a wide 1:10,000 speed regulation range for fine low-speed positioning as well as high-speed machining. A full-scale 8 V current feedback signal is provided for closed-loop diagnostics, and the protective earth stud accepts 10 mm² conductors to meet grounding requirements.
The drive is specified for ambient temperatures up to 55 °C and can be installed at altitudes reaching 1000 m AMSL without current derating. Under worst-case switching and magnetizing conditions, the power stage dissipates up to 350 W, a figure that guides cabinet airflow calculations when several inverters share the same enclosure. Control electronics consume 30 W, and a ready relay rated 24 V 1 A DC is available for system interlocks. Encoder leads may extend to 100 m without signal conditioning, and the tacho output delivers 2.7 V per 1000 rpm to legacy speed indicators.
Frequently Asked Questions about SM 50/100-T:
Q: What is the peak current capability of the SM 50/100-T inverter?
A: The SM 50/100-T can deliver a peak current of 100 A for up to 2 seconds.
Q: What is the speed regulating range of the SM 50/100-T?
A: This inverter features a speed regulating range of 1:10,000.
Q: What is the rated current of the SM 50/100-T inverter?
A: The SM 50/100-T operates at a rated current of 50 A.
Q: What is the maximum encoder cable length supported by the SM 50/100-T?
A: This model supports an encoder cable length of up to 100 meters for signal transmission.
Q: What is the maximum operating temperature for the SM 50/100-T?
A: The maximum allowed operating temperature for this inverter is 55 °C.
