Bosch Rexroth SM 10/20-TA (055128-111) – AC Servo Drive Axis Module | Indramat Drive Platform
Engineering Background
The Bosch Rexroth Indramat SM series was engineered for high-cycle, precision servo axis control in CNC and industrial automation environments. The SM 10/20-TA variant (P/N: 055128-111) is a torque/velocity-mode axis module rated at 10 A continuous / 20 A peak, designed to integrate directly into the Indramat modular drive rack alongside TVD/TVM power supply modules. Its architecture reflects Rexroth’s commitment to deterministic motion control under demanding thermal and vibration conditions.
Product Positioning
Konmask.com supplies the SM 10/20-TA to procurement engineers and maintenance teams requiring a verified, drop-in replacement for legacy Indramat drive systems. Each unit is functionally tested, documented, and shipped with anti-static protection. We serve OEM retrofit projects, spare-parts programs, and emergency production-line recovery scenarios worldwide.
Complete Technical Specifications
- Manufacturer: Bosch Rexroth (Indramat)
- Part Number / SKU: 055128-111 | SM-10-20-TA-055128-111
- Model: SM 10/20-TA
- Module Type: AC Servo Drive Axis Module
- Continuous Output Current: 10 A
- Peak Output Current: 20 A (2× burst for acceleration cycles)
- Control Mode: Torque & Velocity (TA variant — dual-loop)
- Input Power: 3-phase AC via Indramat DC bus (TVD/TVM power supply)
- Feedback Interface: Resolver / Incremental Encoder (Indramat standard pinout)
- Command Interface: Indramat analog/digital drive bus
- Mounting: Modular rack integration (DIN rail / panel compatible)
- Weight: 1,340 g
- Country of Origin: Germany
- HS Code: 8537.10
- Compliance: CE-marked; designed to IEC 61800 series
Proven Application Environments
- CNC machining centers — milling, turning, and grinding servo axes
- Injection molding machine servo drives (clamp, injection, ejector axes)
- Semiconductor wafer handling and precision pick-and-place systems
- Printing and packaging line servo control
- Robotics, gantry, and multi-axis motion platforms
- Metal forming, press brake, and stamping servo control
- Textile and wire-drawing machine axis drives
Engineering Advantages
- 2× Peak Current Headroom: 10 A continuous / 20 A peak enables aggressive acceleration profiles without thermal derating
- TA Dual-Loop Control: Simultaneous torque and velocity loop closure delivers superior dynamic stiffness and minimal following error
- True Drop-In Compatibility: Plug-and-play replacement within existing Indramat/Rexroth SM-series rack — no rewiring, no firmware migration required
- Onboard Fault Diagnostics: LED status indicators and fault code output enable rapid field troubleshooting without external tools
- Industrial-Grade Reliability: Designed to MIL-grade vibration and thermal cycling standards for 24/7 continuous production
- Resolver & Encoder Flexibility: Supports both resolver and incremental encoder feedback for broad motor compatibility
System Architecture & Signal Flow
The SM 10/20-TA operates as a slave axis module within the Bosch Rexroth Indramat modular drive system. The DC bus is supplied by a dedicated power supply module (TVD or TVM series). Torque and velocity command signals are received from the CNC controller via the Indramat drive interface bus. The internal current control loop closes at high bandwidth; the velocity loop is closed either internally or externally via the CNC depending on system configuration. Resolver or encoder feedback is routed directly to the SM module for commutation and closed-loop position feedback. All modules share a common backplane for power distribution and fault signaling.
Sourcing & Quality Verification
- Units sourced from decommissioned OEM production lines or authorized surplus channels
- Full functional power-on test performed under load prior to shipment
- Visual inspection: PCB integrity, connector condition, bus bars, and housing verified
- Firmware and parameter version documented where accessible
- Shipped in anti-static bag with foam-lined carton protection
- Certificate of Conformance (CoC) available on request
- Traceability records maintained for 24 months post-sale
Procurement Process
- Submit RFQ or place order directly on Konmask.com
- Receive order confirmation and lead-time within 24 business hours
- Unit undergoes final inspection and is packed for international freight
- Tracking number and commercial invoice provided for customs clearance
- Technical support available post-delivery for integration and commissioning assistance
Technical FAQ
Q: Is the SM 10/20-TA compatible with my existing Indramat rack?
A: Yes — the SM series modules are designed for modular rack integration within the Indramat drive family. Verify bus connector type and power supply current rating before installation.
Q: Can this module be reprogrammed or reconfigured?
A: Parameter adjustment is possible via the Indramat programming module or compatible CNC interface. Contact our technical team for configuration support specific to your machine.
Q: What warranty is provided?
A: Konmask.com provides a 90-day functional warranty covering defects identified under normal operating conditions. Extended warranty options are available on request.
Q: Do you provide a datasheet or wiring diagram?
A: Yes — contact [email protected] with your order reference and we will supply all available technical documentation including wiring diagrams and parameter lists.
Q: Can you ship internationally and provide customs documentation?
A: Yes — we ship worldwide with full commercial invoice, packing list, and HS code 8537.10 declaration for smooth customs clearance.
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