Description
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Suitable for manufacturing machinery requiring efficient variable-speed operation.
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Compact drive intended for panel mounting in industrial control systems.
Technical Specifications
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Manufacturer: Kawasaki
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Model: 50999-2820
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Drive Type: Industrial AC variable frequency drive
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Power Rating: Reported around 0.5 HP to 3 HP depending on source listing
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Input Voltage: 380 to 480 VAC three-phase reported
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Output Frequency: Up to approximately 590 Hz
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Control Method: Open-loop or sensorless vector control reported
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Braking: DC injection and dynamic braking support reported
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Operator Interface: Keypad included in distributor listings
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Protection Rating: IP20 reported in some sources; IP66 reported in others, so exact rating depends on variant
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Mounting: Panel mount
Functional Features
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Sensorless vector control for smooth motor performance.
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Built-in braking chopper in listed configurations.
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Safe Torque Off function reported for enhanced safety.
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Setup wizard and application macros for faster commissioning.
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LED status indication for operating conditions.
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Compact design for space-saving panel installation.
Application Scenarios
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Textile machinery
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Printing equipment
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Rubber and plastics machinery
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Woodworking machines
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Conveyor systems
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General industrial motor control
Material and Structural Characteristics
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Industrial drive enclosure with heat dissipation structure.
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Terminals for power input, motor output, and control wiring.
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Integrated keypad and display interface.
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Designed for electrical panel installation.
Working Principle
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Converts incoming AC power into adjustable frequency and voltage output.
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Controls motor speed by varying output frequency.
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Uses sensorless vector algorithms to estimate motor flux and torque.
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Provides braking energy management through integrated braking circuitry.
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Responds to control inputs, analog references, and digital commands.
Installation Requirements
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Mount inside a suitable electrical enclosure with adequate ventilation.
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Maintain clearance for cooling air circulation.
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Use properly rated conductors for input and motor circuits.
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Provide grounding and short-circuit protection.
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Ensure compatibility with motor nameplate voltage and current.
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Follow local electrical codes and manufacturer wiring diagrams.
Usage Precautions
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Do not operate beyond rated current, voltage, and temperature limits.
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Prevent dust accumulation in cooling paths.
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Avoid moisture, oil mist, and corrosive atmosphere unless enclosure protection permits.
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Verify motor insulation and grounding before energizing.
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Disable Safe Torque Off only when permitted by safety procedures.
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Inspect wiring and torque terminals periodically.





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