The Bosch VMA 21/KR 001-D (Part Number: 1070084284-210) is a precision-engineered 3-phase servo drive designed for high-dynamic motion control in sophisticated industrial automation systems and CNC machining centers.
Product Parameters (Datasheet)
- Model Number: VMA 21/KR 001-D
- Part Number: 1070084284-210
- Input Voltage: 3-Phase AC (typically 200V – 480V depending on system configuration)
- Frequency: 50/60 Hz
- Phase Configuration: 3-Phase
- Series: VMA (Variable Motion Actuator)
- Control Type: Closed-loop servo control
- Cooling Method: Heatsink-assisted thermal management
- Interface: Integrated proprietary communication for Bosch/Rexroth controllers
- Mounting: Modular rack or panel mounting
Country of Origin
This advanced motion control unit is manufactured by Bosch Rexroth in Germany, ensuring adherence to the strictest European standards for industrial electronics and mechanical reliability.
Application Fields
The VMA 21/KR series is utilized in high-speed, high-accuracy environments:
- Automotive Manufacturing: Powering robotic assembly arms and precision welding stations.
- CNC Machining: Controlling axis movement in multi-axis milling and turning centers.
- Packaging Machinery: Coordinating high-speed synchronized motion for bottling and wrapping.
- Textile Industry: Managing precise tension and speed control in industrial looms.
- Material Handling: Driving automated storage and retrieval systems (AS/RS).
Product Usage Instructions
- Mounting: Install the drive vertically in a control cabinet. Ensure adequate clearance (minimum 50mm) above and below the unit for proper airflow and heat dissipation.
- Power Wiring: Connect the 3-phase AC input to terminals L1, L2, and L3. Ensure the ground (PE) terminal is connected to the central earth bus to prevent electrical noise.
- Motor Connection: Use shielded cables for the servo motor power and feedback (encoder) connections to minimize Electromagnetic Interference (EMI).
- Commissioning: Use the Bosch-specific software tool (such as IndraWorks or legacy commissioning software) to parameterize the motor constants and tuning loops.
- Safety: Verify that the “Emergency Stop” circuit is correctly integrated into the drive’s enable inputs before applying high-voltage power.
Product Technical Description
The VMA 21/KR 001-D functions as the power electronics interface between the automation controller and the physical servo motor. Technically, it employs a 3-phase Pulse Width Modulation (PWM) inverter stage to provide precise current and voltage control to the motor windings. The “KR” designation often refers to specific regenerative braking or communication capabilities within the VMA family. This drive is known for its high overload capacity and extremely fast torque response times, making it ideal for processes requiring rapid start-stop cycles.
Q&A (Common Questions)
Q: Can this drive be used with motors from other manufacturers? A: While possible, it is optimized for Bosch Rexroth motors to ensure the feedback loops and thermal models are perfectly matched for peak performance.
Q: What does the “210” at the end of the part number signify? A: This usually denotes a specific hardware revision or a firmware bundle pre-loaded for specific industrial applications.
Q: Does this unit support regenerative braking? A: Most VMA modules support energy recovery during deceleration; however, an external braking resistor may be required depending on the inertia of the load.
Q: How do I troubleshoot a “Fault” LED on the front panel? A: A red fault LED typically indicates an over-current, over-voltage, or feedback error. Connect the diagnostic software to read the specific hex error code for detailed troubleshooting.
Similar Model Recommendations
- Bosch VMA 21/KR 001-A (Earlier hardware revision)
- Bosch VMA 21/KR 002-D (Higher power output variant)
- Bosch Rexroth KDV series (Associated power supply modules)
- Bosch Rexroth TDM series (Compatible analog servo drives)
- Bosch Rexroth Indradrive HCS (Modern digital successor)
Find more technical details on the Bosch VMA 21/KR 001-D and explore our comprehensive inventory of servo-drive solutions and industrial motion components.
