Description
Bosch Rexroth Indramat TDM 1.3-050-300-W1-000 – High-current analog servo drive for DC servo motors (50 A, 300 VDC bus)
The Indramat TDM 1.3-050-300-W1-000 is one of those “keeps-the-line-running” drive modules you still see across legacy CNC, packaging, and printing machines. It’s a 50 A analog servo drive designed for DC servo motors with tacho feedback, fed from a 300 VDC bus. From my experience, it’s a straight swap in many cabinets—wiring lands where you expect, the ±10 V reference just works, and the W1 version’s fan cooling makes it fairly forgiving in tighter enclosures.
You might notice that shops with mixed-vintage equipment lean on TDM 1.3 units because commissioning is fast and the diagnostic LEDs are simple to read. For retrofit teams, that typically means less downtime and fewer surprises on day one. A maintenance lead told me last year, “We replaced a failing axis card in under an hour and were cutting parts by lunch—no software licenses, no parameter maze.” That sums up the appeal.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery time: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- 50 A drive module (TDM 1.3 frame): Sized for high-inertia or heavier axes; typically replaces older 30–50 A slots without rewiring the cabinet backplane layout.
- 300 VDC bus operation: Works with Indramat KDV power supply modules; stable DC link for multi-axis systems.
- Analog speed command (±10 V): Simple integration with legacy CNC/PLC controls; predictable response without complex fieldbus setup.
- DC tacho feedback: Designed for DC servo motors with tachogenerator; includes motor temperature (PTC) monitoring for protection.
- W1 fan-cooled version: Forced-air cooling helps maintain performance in warmer cabinets, provided the airflow path is kept clear.
- Integrated protections: Overcurrent, overtemperature, and DC bus fault monitoring; status LEDs provide quick diagnostics.
- Service-friendly: Front-access terminals and trimmers; typically fast to tune during repair or retrofit work.
Technical Specifications
| Brand / Model | Bosch Rexroth Indramat TDM 1.3-050-300-W1-000 |
| HS Code | 850440 (Static converters, e.g., servo drives) |
| Power Requirements | 300 VDC nominal DC bus (from Indramat KDV power supply); 24 VDC control/logic typical |
| Output / Motor Type | 50 A class analog servo drive for DC servo motors with tacho feedback and PTC |
| Operating Temperature | 0 to +45 °C (cabinet installation; derate above 40 °C is common) |
| Signal Input/Output Types | ±10 V analog speed reference; DC tacho input; motor temperature PTC input; enable/ready signals; fault relay output; status LEDs |
| Communication Interfaces | No fieldbus; analog control with hardwired I/O and diagnostics LEDs |
| Cooling / Version | W1 – fan-cooled (forced-air) |
| Installation Method | Vertical mounting inside control cabinet on mounting plate; ensure unobstructed top/bottom airflow |
| Dimensions & Weight | TDM 1.3 frame size; width typically 100–150 mm, depth ~300 mm, height ~440–470 mm; weight typically 10–14 kg (confirm per build) |
Related or Supporting Products
- Indramat KDV power supply modules (e.g., KDV 1.x / KDV 2.x, 300 VDC bus): Provides the DC link for one or multiple TDM axes; choose rating based on total current and regen needs.
- KBM braking resistor modules: External dynamic braking for higher inertia applications or frequent decel cycles.
- Line reactors / EMC mains filters: Reduces harmonics and noise on the incoming AC feeding the KDV supply.
- DC servo motors with tacho feedback: Compatible with Indramat DC servos equipped with tachogenerators and PTC sensors.
- Modernization alternatives (when required): Bosch Rexroth digital drives (e.g., IndraDrive HCS series) with encoder feedback and fieldbus; better diagnostics but requires system re-engineering.
Installation & Maintenance
- Cabinet and airflow: Mount vertically on a rigid backplate. Keep intake/exhaust paths open; W1 fan needs clear air. In most cases, 50–100 mm clearance above/below is sensible.
- Power wiring: Feed the TDM from a 300 VDC bus (KDV). Size motor cables to current and ambient; bond PE ground with low impedance. Keep motor and tacho cables separated from power to reduce noise.
- Control wiring: Use shielded twisted-pair for ±10 V command and tacho lines; ground shields at the drive side. Verify tacho polarity—reversed polarity will cause runaway on enable.
- Tuning: Set current and speed loop trim-pots incrementally. From my experience, start with conservative gains and verify thermal behavior during extended runs.
- Routine maintenance: Clean dust from heat-sinks and the W1 fan; check fan operation and cabinet filters quarterly. Inspect terminals for looseness. Electrolytic capacitors age—plan periodic health checks if the unit runs 24/7.
- Safety: Lock-out/tag-out the supply; DC bus capacitors can hold charge even after power-down. Confirm bus voltage is below safe limits before servicing.
Quality & Certifications
- Certifications: CE marking is typical for Indramat cabinet systems of this era; UL/cUL availability depends on production batch—please confirm for your exact unit.
- Manufacturer quality system: Produced under Bosch Rexroth quality standards (ISO 9001 at the manufacturing level).
- Warranty: 365 days replacement/repair coverage as stated above.
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