SMTBD1/1A-220/45 - Speed amplifier Module - INFRANOR

INFRANOR SMTBD1/1A-220/45 variable speed drive – SMT-BD1 series

The SMTBD1/1A-220/45 is a variable speed drive from the INFRANOR SMT-BD1 series designed for precise control of AC brushless servo motors in industrial automation. It addresses maintenance, retrofit, and OEM needs where stable speed regulation, responsive torque control, and deterministic positioning are required. Operating from a 220 VAC mains with an internal 310 VDC bus, the drive integrates a PI2 speed regulator with selectable bandwidth for process tuning and a fast current loop for dynamic response. A 6U double Eurocard plug-in format simplifies integration in rack-based systems, while a DSP-based control core and IGBT power stage ensure consistent behavior. Standard interfaces cover ±10 V analog command, digital enable, and CANopen for networked control. Encoder emulation over RS422 up to 8192 ppr facilitates synchronization with motion controllers and CNC systems. This unit suits harsh environments where reliability, repeatability, and short downtime are priorities.

Technical specifications

• Manufacturer reference: SMTBD1/1A-220/45
• Series: INFRANOR SMT-BD1 servo speed amplifier
• Type: Plug-in 6U double Eurocard variable speed servo drive with IGBT power stage and DSP control
• Input supply: 220 VAC mains, internal DC bus around 310 VDC
• Control loops: Torque, speed, and position capability with PI2 speed regulator and selectable bandwidth at 50, 75, or 100 Hz
• Maximum speed setpoint: Adjustable up to approximately 14,000 rpm
• PWM switching frequency: 10 kHz
• Current loop response: Bandwidth greater than 1 kHz with internal current limiting up to 100 percent for 1 s
• Command and monitoring: ±10 V analog command for speed or current, ±8 V analog monitor outputs
• Digital I/O: ENABLE, FC+ and FC− logic inputs for drive interlocks and direction or limit functions
• Feedback and emulation: RS422 incremental encoder emulation up to 8192 ppr to interface with external controllers
• Communication: CANopen for integration into automation networks
• Fusing: Integrated fuses rated 20 AT and 1 A according to internal circuits
• Commissioning aids: Auto-tuning, anti-windup protection, interpolation and homing functions
• Output characteristics: Output voltage tracks the DC bus, motor power rating depends on motor and application sizing

Overview of the SMT-BD1 range

The INFRANOR SMT-BD1 family targets high-precision motion where closed-loop speed control and fast current regulation are essential. Designed for long service life in industrial environments, the series provides consistent tuning tools and standardized I/O to reduce commissioning time and to ease replacement on existing lines. Its plug-in 6U format supports dense multi-axis racks with simplified serviceability.

• SMT-BD1 speed control: PI2 regulation with selectable bandwidth offers straightforward adaptation to mechanical inertia and compliance, improving stability and settling time without overshoot.
• SMT-BD1 motion features: Torque, speed, and position modes with encoder emulation allow tight coupling to motion controllers, ensuring deterministic profiles for indexing, homing, and interpolation tasks.

The SMTBD1/1A-220/45 aligns with this range philosophy by combining robust hardware, deterministic control loops, and interoperable interfaces that remain serviceable in brownfield sites and compatible with modern PLC architectures.

Industrial applications

This variable speed drive integrates into a wide spectrum of motion use cases where repeatability and dynamic response must be maintained over long duty cycles. Typical deployments include single-axis or coordinated multi-axis machines driven by AC brushless motors, especially where ±10 V command and encoder emulation are standard practice.

• Packaging and assembly: Indexing tables, feeders, and cut-to-length stations requiring stable speed, quick start-stop, and precise positioning.
• Conveying and web handling: Speed regulation with tension-sensitive sections on unwinding and rewinding with coordinated axes and master-follower schemes.
• Machine tools and CNC auxiliaries: Auxiliary axes, tool changers, and positioning slides that demand consistent following error control.
• Robotics and pick-and-place: Servo axes requiring fast torque response and accurate homing for repetitive cycles.
• Printing, test benches, and lab automation: Repeatable speed profiles with analog command and feedback compatibility for integration with existing controllers.

Integration and communication

The SMTBD1/1A-220/45 connects to PLCs and motion controllers via CANopen or through the conventional ±10 V analog command combined with digital enables. Encoder emulation over RS422 up to 8192 ppr simplifies interfacing with devices expecting incremental feedback, enabling synchronized motion or position capture without redesigning the control architecture. The selectable speed loop bandwidth helps align the drive response with machine mechanics, while the high-rate current loop supports dynamic load changes.

Commissioning is streamlined by auto-tuning and anti-windup mechanisms that protect against integrator saturation during transients. The 6U double Eurocard form factor promotes neat cabinet layouts and fast board-level servicing. For reliable operation, follow best practices on shielding, grounding, and cable segregation to minimize EMC coupling. Output voltage follows the internal DC bus, and the achievable motor power depends on thermal conditions and motor characteristics. Digital inputs such as ENABLE, FC+, and FC− support machine safety chains and limit logic commonly used in industrial automation.

Availability and warranty

Standard Exchange Industry supplies the INFRANOR SMTBD1/1A-220/45 as part of three services adapted to production constraints: standard exchange, refurbished supply, and repair. Each unit is functionally tested on dedicated benches, validated under load, and delivered with a warranty aligned with the chosen service. With stock coverage across an extensive catalog and shipment in 24 to 72 hours, SEI helps maintenance teams reduce mean time to repair and secure continuity of production. Technical support is available to verify compatibility, define replacement strategies within the SMT-BD1 range, and coordinate commissioning. Traceability, packing suited to sensitive electronics, and controlled logistics complete the service to ensure the drive reaches your site ready for installation.