TDM 1.2-50-300-W1-115 Bosch Rexroth Indramat
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MPN: R911222233
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The Bosch Rexroth Indramat TDM 1.2-50-300-W1-115 is part of the TDM Servo Drive Modules series and has a continuous current of 45 Amps, with a peak current of 50 Amps. This module delivers a continuous power of 15 kW, operates with a fan supply voltage of 115 VAC, and has a link circuit voltage of 300 VDC. It weighs 10 Kilograms and has an IP10 protection rating.
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Product Description:
The TDM 1.2-50-300-W1-115 servo drive module is produced by Bosch Rexroth Indramat within the TDM Servo Drive Modules series. It serves as the power stage between a motion controller and a three-phase motor, modulating current and voltage so industrial axes follow commanded speed or torque profiles. Designed for automated packaging lines, material-handling gantries, and general machinery, the unit processes control signals, protects the load from overcurrent events, and routes excess heat through an integrated fan assembly. This arrangement helps the axis respond smoothly during acceleration, steady running, and deceleration.
The drive delivers a continuous phase current of 45 A, enabling mechanical outputs up to 15 kW under steady-state conditions. For short bursts, it can supply a peak of 50 A, and the common DC bus is held at 300 VDC for consistent energy transfer among multiple axes. Current feedback is linearized by a Ma scale factor of 0.050 V/A, allowing the control card to calculate actual motor torque from the ±10 V monitor signal. At rated load, the power stage dissipates 250 W, which must be removed from the cabinet during operation. Regulation begins once the detector senses a minimum Ired threshold of 15 A, while separate signal supplies must furnish 60 mA at -15 V and 140 mA at +15 V. The module uses insulation category C to withstand the working voltages present in the link circuit.
A cooling fan powered directly by 115 VAC draws only 30 VA, keeping heat sink temperatures within limits so ambient air may rise to 55 °C without derating. Installation is permitted up to 1000 m above sea level, and the IP10 enclosure requires placement inside a control cabinet to prevent accidental contact with live parts. The 10 kg assembly mounts vertically to support upward airflow through the enclosure. That mounting position helps the fan move air across the heat sink during operation.
Frequently Asked Questions about TDM 1.2-50-300-W1-115:
Q: What is the continuous power output of the TDM 1.2-50-300-W1-115 servo drive?
A: The TDM 1.2-50-300-W1-115 delivers a continuous power output of 15 kW.
Q: What peak current does the TDM 1.2-50-300-W1-115 support?
A: This model supports a peak current of 50 A, allowing short bursts above the continuous rating.
Q: What is the highest ambient operating temperature for the TDM 1.2-50-300-W1-115?
A: The maximum allowable ambient temperature for operation is 55 °C.
Q: What protection rating does the TDM 1.2-50-300-W1-115 offer?
A: It is rated for IP10 protection, providing limited protection against solid objects.
Q: What is the fan supply voltage required by the TDM 1.2-50-300-W1-115?
A: The fan on this drive runs on a supply voltage of 115 VAC.
