TDM 4.3-020-300-W0 Bosch Rexroth Indramat
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MPN: R911250280
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The Bosch Rexroth Indramat TDM 4.3-020-300-W0 is part of the TDM Servo Drive Modules series and weighs 8 kilograms. It provides a continuous power output of 6 kW with a programmed continuous current of 7 Amps and a peak current of 14 Amps. This unit features natural convection cooling and operates with a link circuit voltage of 300 VDC.
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Product Description:
The TDM 4.3-020-300-W0 servo drive module is manufactured by Bosch Rexroth Indramat for the TDM Servo Drive Modules series. Within an automation rack, it converts the DC link supply into controlled three-phase outputs that command motor torque and speed. By doing so, it forms the electrical interface between the motion controller and the mechanical axis, supporting tasks such as indexing, winding, and pick-and-place operations where repeatable velocity profiles and stable torque control are required.
Its link circuit is stabilized at 300 VDC; at this potential, the power stage supplies a programmed continuous phase current of 7 A and tolerates peaks up to 14 A for short acceleration bursts. These current limits support a sustained mechanical output of 6 kW while permitting motor speeds of up to 10,000 rpm without field weakening. The analog tachometer channel follows an Ma ratio of 0.375 V/A, so a 10 A demand returns 3.75 V, simplifying gain selection in the motion controller. A 24 V auxiliary rail provides 400 mA for logic, relay coils, and status LEDs, ensuring that the control section remains energized even when the power stage is disabled. Separating continuous and peak ratings allows intermittent overloads to be handled without oversizing the entire drive cabinet.
Heat generated in operation is discharged passively; with no fan, the module still sheds 110 W through finned side panels by natural convection. Reliable performance is specified up to an ambient temperature of 55 °C, after which derating is necessary to avoid thermal shutdown. The enclosure carries an IP10 protection rating that admits airflow, so installation inside a dust-free cabinet or sealed line reactor bay is recommended. Two auxiliary supplies furnish ±15 V; the positive rail delivers 150 mA and the negative rail 60 mA to encoders and signal conditioners, maintaining reference stability. Even with these regulators onboard, the hardware weighs only 8 kg, easing slide-in mounting and reducing structural load on multi-axis racks.
Frequently Asked Questions about TDM 4.3-020-300-W0:
Q: What is the continuous power output of the TDM 4.3-020-300-W0 servo drive?
A: The TDM 4.3-020-300-W0 has a continuous power output of 6 kW.
Q: What cooling method is used in the TDM 4.3-020-300-W0?
A: This drive module is cooled using natural convection rather than active cooling systems.
Q: What is the programmed peak current of the TDM 4.3-020-300-W0 servo drive?
A: The TDM 4.3-020-300-W0 supports a programmed peak current of 14 A.
Q: What is the maximum ambient temperature the TDM 4.3-020-300-W0 can operate in?
A: The maximum ambient temperature for operation is 55 °C.
Q: What protection rating does the TDM 4.3-020-300-W0 have?
A: It features a protection rating of IP10, meaning only limited protection against solid bodies is provided.
