SM 10/20-TC-DC Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SM 10/20-TC-DC is part of the SM AC Inverters series and features a rated current of 10 Amps with a peak current of 20 Amps for 2 seconds. It supports a speed control range of 1 to 10,000 and operates with a DC link voltage of 460 V. This inverter has a protection rating of IP00 and can be used at a maximum operating altitude of 1000 meters.
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Product Description:
The SM 10/20-TC-DC belongs to the SM AC Inverters series manufactured by Bosch Rexroth Indramat. It is an AC inverter that translates rectified DC link energy into a variable-frequency, variable-voltage output. This allows connected motors to run with precise speed and torque profiles in a wide range of automated machinery, conveyors, or process equipment.
The control interface presents a command input impedance of 10 kOhm, which allows direct connection to standard analog set-point sources without loading them. A wide speed control ratio of 1:10,000 lets the inverter maintain feedback-based regulation from crawl speeds up to top rate. The power stage delivers a continuous output of 10 A and can supply up to 20 A for two-second overload events when acceleration demands increase. Inside the intermediate circuit, a 460 V DC link is maintained, providing headroom for high motor back-EMF during dynamic braking. Auxiliary consumption is limited to 20 W, and the ready relay can switch 24 V at 1 A DC for system status signaling. The unit can operate at altitudes up to 1000 m without derating, accepts a protective earth conductor of 2.5 mm², and offers a tacho output scale of 2.7 V per 1000 rpm for external instrumentation.
The cooling fan and logic enable share a supply of 24 V DC, with the fan drawing only 100 mA to keep semiconductor temperatures in check. Feedback wiring is supported with encoder cables up to 100 m long, permitting remote motor placement while maintaining clean signals. Thermal losses are capped at 90 W, so enclosure ventilation can be sized accurately. The open-frame construction carries a protection rating of IP00, meaning it must be installed inside a switch cabinet that provides the required protection, yet this arrangement simplifies access for cable routing and maintenance.
Frequently Asked Questions about SM 10/20-TC-DC:
Q: What is the rated current capacity for the SM 10/20-TC-DC inverter?
A: The SM 10/20-TC-DC operates at a rated current of 10 A, ensuring it can handle moderate loads efficiently.
Q: What voltage is needed for the cooling and enable inputs of the SM 10/20-TC-DC?
A: This inverter requires a 24 V DC supply for both its cooling and enable input operations.
Q: What is the maximum altitude at which the SM 10/20-TC-DC can be used?
A: The maximum operating altitude for the SM 10/20-TC-DC is 1000 meters above sea level.
Q: What protection rating is provided on the SM 10/20-TC-DC inverter?
A: The protection rating is IP00, meaning this model does not offer intrinsic protection against dust or water.
Q: What is the speed control range of the SM 10/20-TC-DC?
A: The speed control range supported by this model is 1:10,000, allowing for precise speed regulation.
