DSC 3.1-150-115V Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DSC 3.1-150-115V is part of the DSC Servo Amplifiers series and delivers a continuous current of 75 Amps with a peak current of 130 Amps. It operates with a DC bus voltage of 300 Vdc, has a maximum power dissipation of 510 Watts, and weighs 26 kilograms. The unit supports an encoder signal level of 0/5 V TTL and an average bleeder power of 500 Watts.
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Product Description:
The DSC 3.1-150-115V servo amplifier is manufactured by Bosch Rexroth Indramat as part of the DSC Servo Amplifiers series. In a closed-loop drive system, this module supplies controlled current and voltage to matched servo motors, allowing precise speed and torque regulation in packaging lines, printing presses, and assembly cells. It is intended for cabinet installation next to related DSC modules, which helps keep the overall drive arrangement compact inside machine enclosures.
Electrically, the amplifier draws just 180 VA of control power, yet it can source a continuous phase current of 75 A to the motor windings. During acceleration, it tolerates a peak output of 130 A for short intervals. The internal DC link is stabilized at 300 Vdc, and the current measurement circuit converts motor current to drive-level feedback at an Imess scale factor of 50 mV/A, allowing the controller to react quickly to load changes. The interface accepts incremental encoder signals at 0/5 V TTL levels, while a ±10 Vdc tachometer output can be used for legacy velocity loops. Braking energy is routed to a built-in bleeder that dissipates an average of 500 W, with a momentary capacity of 20 kW, which protects the bus capacitors from overvoltage.
Thermal limits set the amplifier’s allowable operating range. Ambient air around the card may rise to 55 °C, provided the heat sink itself does not exceed 85 °C, and the power stage trips on the motor sensor at 105 °C to help prevent winding damage. Total semiconductor and bleeder losses do not exceed 510 W, and the converter can still deliver up to 39 kW of mechanical power through the connected motor without derating. Operation is permitted up to 1000 m above sea level, beyond which additional cooling is advised. The unit weighs 26 kg, which permits direct cabinet mounting next to related DSC modules while keeping a compact footprint inside machine enclosures.
Frequently Asked Questions about DSC 3.1-150-115V:
Q: What is the continuous current output of the DSC 3.1-150-115V servo amplifier?
A: The DSC 3.1-150-115V servo amplifier offers a continuous current output of 75 A for consistent motor drive performance.
Q: What is the peak output power capability of the DSC 3.1-150-115V?
A: This servo amplifier can provide a peak output power of 39 kW during high-demand situations.
Q: What is the rated DC bus voltage for the DSC 3.1-150-115V servo amplifier?
A: The DSC 3.1-150-115V operates with a DC bus voltage of 300 Vdc.
Q: What encoder signal levels are supported by the DSC 3.1-150-115V?
A: The unit supports encoder signals with 0/5 V TTL levels for feedback integration.
Q: What is the absolute maximum temperature rating for the DSC 3.1-150-115V servo amplifier?
A: This model is rated for operation at maximum ambient temperatures up to 55 °C.
