SM 15/30 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SM 15/30 is part of the SM AC Inverters series and operates with a DC bus voltage of 520 VDC and an auxiliary supply of 24 VDC. This inverter features a peak current of 30 Amps, a rated current of 15 Amps, and includes a 7-segment diagnostic display. Its heatsink alarm temperature is set to 80 degrees Celsius, with a motor temperature threshold of 145 degrees Celsius.
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Product Description:
The SM 15/30 AC inverter is produced by Bosch Rexroth Indramat for the SM AC Inverters series. Designed as a drive-stage for variable-speed induction or synchronous motors, the unit supplies a controllable three-phase output that allows motion axes to match process demands in automated machinery. Within an installation it links the controller layer to the motor, translating low-level commands into the high-power switching necessary for torque, speed, and direction adjustments, and it is mounted inside electrical cabinets where it can interface with standard field-bus hardware.
A separate auxiliary supply of 24 VDC keeps the control electronics active during main-power interruptions, while the current feedback channel is calibrated so that 8 V = Imax, letting the PLC read actual load as an analog value. The internal DC link operates at 520 VDC, providing energy storage between the rectifier and the output stage. Under continuous duty the inverter can deliver a rated phase current of 15 A, and it supports transient demands up to 30 A for acceleration or shock loads. For command inputs, the analog setpoint interface is scaled so that 10 V corresponds to the software maximum speed, enabling straightforward mapping from the supervisory controller.
The diagnostics layer uses a 7-segment display to present status codes, so faults can be traced without external tools. A heatsink sensor raises an alarm at 80 °C, giving margin before power devices reach critical junction limits, while a separate channel trips when the motor thermistor signals 145 °C. Protective earth wiring is accommodated by terminals sized for 6 mm² conductors, and the power blocks must be tightened to 3.7 Nm to maintain low-resistance joints.
Frequently Asked Questions about SM 15/30:
Q: What is the rated current of the SM 15/30 AC inverter?
A: The Bosch Rexroth Indramat SM 15/30 features a rated current of 15 A for continuous operation.
Q: What type of diagnostic display does the SM 15/30 inverter have?
A: The SM 15/30 has a diagnostic display using a 7-segment interface for status and error indication.
Q: What is the peak current capacity of the SM 15/30 from Bosch Rexroth Indramat?
A: The SM 15/30 provides peak current handling up to 30 A for demanding load conditions.
Q: At what temperature does the SM 15/30 inverter trigger a heatsink alarm?
A: The maximum heatsink alarm temperature for the SM 15/30 is 80 °C, providing thermal protection during high-load operation.
Q: What is the required DC bus voltage for the SM 15/30 inverter?
A: This model accepts a DC bus voltage of 520 VDC for its main power input.
