TDM1.3-50-300-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat TDM1.3-50-300-W1 is part of the TDM Servo Drive Modules series and uses a built-in fan for cooling. It operates with a link circuit voltage of 300 V DC and a type current of 50 Amps. The module features two relay contacts and supports user I/O voltages of ±15 V and 24 V.
Internal Product Review
The TDM1.3-50-300-W1 is a Bosch Rexroth Indramat servo drive module with a 50 A type current and a DC 300 V link circuit. Built-in fan cooling and a ±15 V feedback supply support stable thermal performance and dependable signal handling in servo systems. A strong choice for motion applications requiring consistent drive control.
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Product Description:
The TDM1.3-50-300-W1 servo drive module is produced by Bosch Rexroth Indramat within the TDM Servo Drive Modules series. Intended for cabinet installation, the unit supplies regulated DC power to motor phases and processes encoder signals so that industrial controllers can command precise positioning and velocity. It serves as the interface between low-level motion commands and the high-energy link circuit in closed-loop motion systems. This combination of power conversion and feedback handling lets one module support both motion response and position supervision within the same axis channel. Typical applications include automated machining centers, packaging lines, and other equipment that depends on repeatable motor control.
Its link circuit operates at DC 300 V, allowing energy exchange with other modules across a common bus. The power section is rated for a continuous 50 A type current for normal-duty motor phase operation. Thermal management is handled by a built-in fan, and the fan receives a dedicated 24 VDC supply independent of the power stage, so airflow remains available during low-load operation. For encoder and tacho electronics, the drive provides a balanced ±15 V feedback supply, which removes the need for external sensor power and helps keep the signal reference consistent. This arrangement supports stable operation in multi-axis cabinets where shared power and reliable feedback signals are both important.
On the control side, the drive furnishes an acknowledge relay whose contacts are rated at 24 V, 1 A, allowing a supervisory controller to verify drive readiness through a low-power interface. Start-inhibit monitoring uses a 20 mA DC path that must be satisfied before gating pulses are released, and under fault this path dissipates only 0.5 W. Two internal relays, shown by the 2 contact count, support status signaling or external interlocks. Additional user I/O terminals provide reference lines for limit switches or sensors, which helps simplify wiring in multi-axis cabinets. The low dissipation in the monitoring circuit also helps limit heat buildup around the associated control electronics.
