BA1406 - Drive - CONTROL TECHNIQUES

CONTROL TECHNIQUES BA1406 Variable Frequency Drive - UNIDRIVE SP

The reference drive BA1406 belongs to the UNIDRIVE SP series from CONTROL TECHNIQUES. Designed to control induction motors with or without encoder as well as brushless motors, it meets the drive requirements of production lines, conveyor systems and axes that require precise dynamics. The unit is powered by a three-phase 380 to 480 V supply and covers a power range of 4 to 5.5 kW with a rated current of 11 A. It supports open- and closed-loop vector control, servo mode for brushless motors, four-quadrant regenerative operation and RFC (Rotor Flux Control). Separation of magnetizing current and active current ensures fine regulation of speed, torque and position. Each unit is bench-tested and delivered with a warranty, making it a suitable solution for replacing a faulty drive to restore production within controlled lead times.

Technical specifications

• Manufacturer reference: BA1406
• Series: UNIDRIVE SP
• Manufacturer: CONTROL TECHNIQUES
• Type: Variable speed drive for induction and brushless motors
• Supply network: 380-480 V three-phase
• Power range: 4 to 5.5 kW, approx. 5.4 to 7.4 HP
• Rated current: 11 A
• Control modes: Open-loop vector, closed-loop vector, Servo (brushless), Four-quadrant regenerative, RFC (Rotor Flux Control)
• Advanced control: Separation of magnetizing current and active current for precise regulation of speed, torque and position
• Condition and service: Units bench-tested, supplied as standard exchange, new or reconditioned depending on availability

Overview of the UNIDRIVE SP range

The UNIDRIVE SP series is designed to deliver high-performance control of induction and brushless motors with a high degree of application flexibility. It targets installations where low-speed torque control, speed stability and responsiveness to setpoints are decisive for process quality. The core control integrates vector and servo algorithms to exploit the motor close to its characteristics while ensuring consistent integration into existing automation architectures. This range is widely deployed in industry and remains relevant for maintaining operational equipment in service.

• Use in induction mode: Open- or closed-loop vector control to optimize efficiency and torque capability, with or without encoder feedback depending on precision requirements.
• Use in servo mode: Control of brushless motors for axes requiring dynamics, reliable positioning and four-quadrant regenerative braking.

The BA1406 model sits at the core of these uses. Its ability to separate magnetizing and active current contributes to controlled transient response during acceleration and deceleration ramps, including under load. This feature is relevant for processes sensitive to torque variation, web tensions and synchronized rates.

Industrial applications

This variable frequency drive integrates into many industrial environments where reliable motor control determines equipment availability. Its power range and control modes cover common drive needs, from simple speed regulation to servo axes requiring precise dynamics.

• Conveying and handling: Belt synchronization, roller drives, acceleration management for palletizing.
• Pumps and ventilation: Flow and pressure adjustment with regeneration when load permits, energy optimization through vector control.
• Packaging: Control of linear speed, web tension, repetitive cycles with rapid setpoint changes.
• Machine tools and CNC: Drive for auxiliary axes, secondary spindles, motion control coordinated with the programmable controller.
• Textile and paper: Winding and unwinding, torque control at low speed to maintain web tension.

Integration and communication

The BA1406 integrates into automation architectures controlled by programmable logic controllers. The UNIDRIVE SP series offers optional interfaces and cards to exchange data with common industrial fieldbuses, enabling supervision, speed or torque setpoint control and status feedback. Commissioning is performed via the local keypad and the manufacturer's parameterization tools, with parameters structured by application. Vector control and servo mode simplify closed-loop control when precision or repeatability requirements are imposed. In multi-axis contexts, the four-quadrant regenerative operation allows controlled energy dissipation in braking scenarios, contributing to thermal stability of the drive system.

Availability and warranty

The CONTROL TECHNIQUES BA1406 drive is available reconditioned, as a standard exchange unit or repaired depending on the condition of your equipment. Each unit is bench-tested and supplied with a warranty. Standard Exchange Industry ships within 24 to 72 hours to over 120 countries. In case of a line stoppage, our technical team assists to confirm reference compatibility with the installed motor and your automation architecture, in order to restore production as quickly as possible. The proposed solution remains strictly aligned with the variable speed drives category and emphasizes a factual approach focused on service reliability and managing operational risks.