DSC 3.1-50-220V Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DSC 3.1-50-220V is part of the DSC Servo Amplifiers series and has a nominal output current of 50 Amps with a peak output power of 15 kilowatts. This servo amplifier weighs 26 kilograms and operates with a DC bus voltage of 300 Vdc ±15%. Its average bleeder power is 500 Watts and its maximum power dissipation is 360 Watts.
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Product Description:
The DSC 3.1-50-220V is a servo amplifier produced by Bosch Rexroth Indramat within the DSC Servo Amplifiers series. Acting as the power interface between a motion controller and a servo motor, it modulates current to maintain commanded torque and velocity in automated machinery. The model designation indicates a 50 A current class and 220 V supply compatibility, which suits mid-range positioning axes in assembly cells, packaging lines, and material-handling stations. In a closed-loop drive system, this allows the connected axis to respond quickly to speed changes and load disturbances without requiring the controller to switch motor power directly.
The internal DC bus is regulated around 300 Vdc ±15%, and an integrated bleeder resistor dissipates regenerative energy that returns from the motor during braking. Under normal deceleration, the resistor handles 500 W, while transient peaks can reach 20 kW. The bleeder engages at 425 Vdc and releases near 400 Vdc to help prevent overvoltage trips. Continuous motion current is rated at 50 A, and the same value is available briefly as peak motor phase current. The Imess sense circuit outputs 150 mV per ampere, overall power draw from the mains is 180 VA, and cabinet airflow must remove up to 360 W of internal heat. That combination lets the amplifier absorb short bursts of regenerative energy while still supporting rapid acceleration and deceleration on repetitive motion profiles.
Thermal safeguarding is provided by a sensor mounted on the heat sink; it issues a fault when temperature reaches 85 °C and disconnects power if the condition persists for the programmed 30-second delay. Ambient installation must remain below 55 °C, and altitude should not exceed 1000 m so the cooling path can carry heat away consistently during sustained operation. When fully loaded, the amplifier can deliver 15 kW of mechanical power to the motor while losing as much as 360 W inside its chassis. The fan-cooled structure weighs 26 kg, so the panel must support that load and leave clear vertical air passages around the unit. Its fan-cooled layout also means adjacent hardware should not block the intake or exhaust path along the heat sink.
Frequently Asked Questions about DSC 3.1-50-220V:
Q: What is the nominal output current for the DSC 3.1-50-220V servo amplifier?
A: The DSC 3.1-50-220V has a nominal output current of 50 A, suitable for high-demand servo applications.
Q: What is the peak output power offered by the DSC 3.1-50-220V?
A: This servo amplifier can handle a peak output power of 15 kW, supporting intensive operational requirements.
Q: What is the maximum operating altitude for the DSC 3.1-50-220V?
A: The DSC 3.1-50-220V is rated for use at altitudes of up to 1000 meters above sea level.
Q: What is the heatsink overtemperature threshold for the DSC 3.1-50-220V?
A: The heatsink of this amplifier has an overtemperature threshold of 85°C to protect internal components.
Q: What DC bus voltage is supported by the DSC 3.1-50-220V servo amplifier?
A: This model supports a DC bus voltage of 300 Vdc with a ±15% tolerance for stable power delivery.
