Elmo SBA-5 Miniature PWM Servo Amplifier

Elmo Motion Control SBA-5/200H Miniature PWM, Full Wave, 3-Phase Servo Amplifier: Technical Overview The Elmo Motion Control SBA-5/200H is a compact, high-efficiency, 3-phase servo amplifier designed for demanding motion control applications. Utilizing Pulse Width Modulation (PWM) technology, this amplifier delivers precise motor control in a small form factor, making it suitable for integration into space-constrained systems. It is engineered for brushless servo motors up to 0.7kW and features a dual PCB construction mounted on a heatsink plate for thermal management. The SBA-5/200H offers operational flexibility with various feedback sensor options and multiple modes of operation, including velocity and current control. Technical Specifications General Features:

• Technology: Miniature PWM, Full Wave, 3-Phase Servo Amplifier
• Motor Power Range: Designed for brushless servo motors up to 0.7kW
• Construction: Two PCBs mounted on a heatsink plate * Lower PCB: Power switching transistors, motor terminals, switch mode power supply, protection logic * Upper PCB: Control logic, commutation logic, control stage terminals, adjusting trimmers, indication LEDs
• Efficiency: Up to 97% at rated current
• Linearity: Better than 1%
• Zero Deadband: Yes
• Internal DC to DC Converter: Allows operation from a single supply
• Status Indication: LED diagnostics
• Availability Note: Discontinued by manufacturer, but may be available through secondary markets Electrical Specifications:
• Switching Frequency: 20 KHz (40 KHz or 60 KHz available on request)
• Current Loop Response: 2 KHz (minimum)
• Output Voltage: Up to 90% of DC input voltage
• Output Voltages for External Use: +5V, +13V
• DC Supply Voltage Range: Defined within the technical specifications (refer to operating manual for specific range)
• Current Ripple: Recommended limits of 10%-20% of rated current. Formula for calculation: Ir = (0.5 * Vs) / (f * L) where Ir is current ripple, Vs is DC supply voltage, f is frequency in KHz, and L is load inductance in mH.
• Drift: 10 µV/°C (referred to input) Feedback and Control:
• Operation Modes: Velocity mode, Current mode
• Feedback Sensor Options: * Resolver: 10, 12, 14, and 16-bit resolution (user-selectable). Maximum tracking rate of 1040 rps (at 10-bit resolution) * Optical Encoder: Maximum input frequency 800 KHz, speed regulation 500:1, encoder frequency x1 or x4, output voltage range 2-30V. Output supplies: 5V/50mA, 12V/20mA * Hall Effect: Accepts brush tachogenerator for velocity feedback and Hall effect sensors for commutation (Hall effect version) * B and E versions: Require Hall effect sensors for commutation
• Commutation Logic: Built-in
• Adjustments: Adjustable compensation, input balance (offset)
• External Control Inputs: * Remote inhibit * External current limit inputs Interfaces:
• Motor Current Monitor: Yes
• Inhibit/Fault Indication: Logic level
• Protection Features: Latch/self-restart modes Physical and Environmental:
• Operating Temperature: 0°C to 50°C
• Storage Temperature: -10°C to +70°C
• Weight: 1.01 lbs Compatibility:
• Motor Type: Designed for brushless servo motors Why Choose Aumictech for Elmo Motion Control SBA-5/200H? At Aumictech, we specialize in supplying high-end motion control equipment. Whether you need precise motor control, efficient power management, or seamless integration into complex systems, our team ensures the Elmo Motion Control SBA-5/200H delivers maximum performance for your application.