Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bosch Rexroth Indramat |
| Model | TDM1.2-100-300-W1 |
| Product Type | AC servo amplifier / drive module |
| Drive Series | TDM 1.2 |
| Rated Type Current | 100 A |
| Peak Current | 100 A |
| Continuous Current | 65 A |
| DC Link Voltage | 300 VDC ±15% |
| Continuous Power Rating | 30 kW |
| Power Loss at Continuous Current | 400 W |
| Cooling | Forced ventilation, internal fan |
| Fan Supply | 115 or 220 VAC, 50–60 Hz |
| Fan Power Consumption | 30 VA |
| Operating Temperature | +5°C to +45°C at rated data |
| Maximum Ambient Temperature | +55°C with derating |
| Storage / Transport Temperature | -30°C to +85°C |
| Maximum Installation Altitude | 1,000 m without derating |
| Protection Rating | IP10 |
| Insulation Category | C, DIN VDE 0110 |
| Weight | Approximately 10.5 kg |
Specifications are from the Indramat MAC servo drives application manual, Technical Data TDM1. The manual’s table lists 65 A continuous current for the standard TDM1.2-100-300-W1 configuration. Individual programming-module examples show different motor-specific current settings, so the installed MOD module must also be checked.
Product Introduction
The Bosch Rexroth Indramat TDM1.2-100-300-W1 is a single-axis servo drive module used with compatible MAC permanent-magnet AC servo motors. It receives DC power from the shared drive link and controls motor torque and speed through a three-phase power stage. The module supports high-current motion applications in CNC machinery, production equipment, and industrial automation systems.
A plug-in MOD programming module stores motor-specific operating parameters, including current limits and speed-command scaling. This module is essential to correct drive operation; matching the amplifier model alone is not sufficient for a safe replacement.

TDM1.2-100-300-W1
Application Scenarios & Field Pitfalls
Typical applications
- CNC machine tools: Servo control for feed axes and other high-power motion functions using compatible MAC motors.
- Automotive production lines: Motion control in automated manufacturing and transfer-line equipment.
- Material-processing machinery: Speed and torque regulation in machines requiring controlled acceleration and deceleration.
- Multi-axis drive cabinets: Operation as one axis module in a shared DC-link architecture supplied by a compatible Indramat power supply.
Field checks before replacement
- Match the motor and MOD module. The programming module must specify the correct TDM controller and MAC motor. Indramat explicitly warns that a mismatch can cause reduced performance or equipment damage.
- Check the continuous-current requirement. The standard technical table specifies 65 A continuous current. Do not size the application using the 100 A peak rating as a continuous value.
- Verify the internal fan voltage. The W1 cooling arrangement can use a 115 VAC or 220 VAC fan. Check the actual module suffix and fan rating before energizing.
- Confirm the DC-link supply. The module requires a compatible nominal 300 VDC link. Verify bus voltage, polarity, protective devices, and the connected power-supply module.
- Inspect feedback and motor wiring. Confirm motor phase connections, BLC rotor-position signals, tachometer feedback, and cable shielding against the existing installation.
- Check cabinet cooling conditions. Restricted airflow, a failing fan, or excessive cabinet temperature can cause thermal problems. Rated operation is specified up to +45°C; operation up to +55°C requires derating.
- Observe DC-bus discharge precautions. The drive contains hazardous DC-link energy. Isolate the system and verify that the bus has discharged before disconnecting power wiring.
These checks follow the installation, commissioning, and technical guidance in the Indramat applications manual.
Related Products
The following models belong to the same Indramat drive family or architecture. They are not automatic substitutes.
- TDM1.2-030-300-W1 – 30 A type-current version, with 30 A peak and 30 A continuous current.
- TDM1.2-050-300-W1 – 50 A type-current version, with 45 A continuous current.
- .2-100-300-W1-115 – 100 A version with a specified 115 V fan arrangement.
- .2-100-300-W1-220 – 100 A version with a specified 220 V fan arrangement.
- .2-100-300-W1-000/S100 – Related extended type-code configuration; confirm the full configuration before substitution.
- TVM2.4-050-220/300-W1 – Separate power-supply module providing the DC link; it is not a servo amplifier.
- MAC 112D – A motor type shown in the manual’s .2-100-300-W1 programming-module example. This does not establish compatibility with every MAC 112D variant.
Procurement and Replacement Notes
The .2 family is legacy equipment. Before purchasing, request photographs of the drive nameplate, serial number, internal fan label, MOD programming module, and terminal connections.
For replacement evaluation, verify:
- Exact TDM model and serial number
- 115 VAC or 220 VAC fan configuration
- MOD programming-module number and motor designation
- Peak and continuous current requirements
- MAC motor feedback and power-cable compatibility
- DC-link supply compatibility
- Functional test results under an appropriate load
Important replacement warning: Do not transfer a MOD programming module from another drive solely because both amplifiers carry the .2-100-300-W1 designation. Its motor and controller identification must match the actual installation.
