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Product Introduction
The REXROTH TVD1.3-08-03/S100 is a compact frequency inverter from the Indramat TVD1.3 series, designed for small-scale industrial automation. It controls the speed and torque of three-phase asynchronous motors, making it ideal for applications where space is limited but reliable performance is non-negotiable.What sets this specific unit apart from the standard TVD1.3 lineup is the /S100 suffix. This denotes a specific factory option, typically involving modified firmware, specific I/O configurations, or regional certification adaptations required for certain OEM machinery. It is rated for 0.75 kW output power with a nominal current of 8 A, operating within the standard industrial voltage range of 380 to 480 VAC. If your machine manual specifies the S100 variant, using a standard unit could lead to integration issues—so matching the suffix here is critical.
Key Technical Specifications
Key Technical Specifications- Output Power: 0.75 kW
- Nominal Current: 8 A
- Input Voltage: 380–480 VAC, 3-phase
- Option Code: S100 (Specific factory variant)
- Control Mode: V/f (Voltage/Frequency) control
- Cooling Method: Fan cooling (Internal)
- Protection Features: Overload, overvoltage, undervoltage, short circuit
- Operating Temperature: 0°C to 50°C
- Enclosure Rating: IP20
Application Scenarios & Pain Points
The “Wrong Suffix” Dilemma
You’ve found a TVD1.3-08-03 drive cheaply online, but your machine says S100. Should you buy it? Stop. In the world of legacy Indramat drives, the suffix matters. The S100 variant often contains specific parameter sets or屏蔽 configurations needed for medical or lab equipment. Installing a generic drive might get the motor spinning, but it could fail emissions tests or lack the specific ramp-up profiles your process needs.Key Applications
- Laboratory Automation: The S100 variant is frequently found in centrifuges or shakers where low electromagnetic interference (EMI) is mandated by the S100 spec.
- Small Conveyors: In postal sorting or small parts handling, the 0.75 kW rating is perfect for driving roller belts without taking up much panel space.
- Test Benches: Engineers use these for prototyping because the V/f control is simple to set up for basic motor testing.
- Textile Machinery: Used in looms for tension control, where the compact size fits into tight mechanical frames.
Case Study: The “Almost” Fit
A technician at a pharmaceutical plant tried to save time by using a standard TVD1.3-08-03 to replace a failed S100 unit on a mixing tank. The motor ran, but the drive kept faulting due to ground leakage current—the S100 has internal filters the standard unit lacks. After 4 hours of downtime, they had to order the correct S100 variant. Lesson: Always match the full model number, especially with Indramat drives.
