FR-A800-CRN

Summary

Product Identification

• Product Line: FR-A800 Plus
• Model Series: FR-A800-CRN (Dedicated to crane applications)

Features

• Reduction in tact time
• Load slippage prevention
• Dedicated monitoring functions
• Applicability in a wide range of industries
• Easier maintenance
• Leading drive performance

Crane Functions

Anti-Sway Control

• Suppresses swinging of loads when stopping, even without operator input.
• Reduces tact time and facilitates efficient operation.
• Increases speed automatically for light loads to reduce tact time.

Shortest-Time Torque Startup Function

• Enabled via parameter Pr.1404.
• Shortens the time from command to brake opening, contributing to reduced tact time.
• Optimizes excitation and torque current for rapid startup.
• Decreasing pre-excitation current during motor stop reduces standby power consumption.

Load Slippage Prevention

• Falling Detection: Outputs a falling detection signal when the commanded direction differs from the actual motor rotation direction during lifts.
• Overload Detection Function: Outputs an overload detection signal when excessive load is applied. The signal is activated when motor torque equals or exceeds a set torque for a specified time.
• Start Count Monitor: Counts inverter starting times to aid in maintenance scheduling or system inspection.
• Brake Sequence Function: Scalable function for optimum brake operation based on load torque or speed. Allows individual setting of brake opening levels for forward and reverse rotation.

Dedicated Monitoring Functions

• Overload detection signal transmission to a superordinate controller.
• Start count monitor for maintenance reference.

Wide Range Applications

• Compliance with ship classification standards (NK, LR, DNV, ABS, BV, CCS, KR) when used with recommended noise filters.
• Suitable for electric deck cranes on ships.

Easier Maintenance

• Longer Service Life: Cooling fans and capacitors rated for 10 years (under specific conditions).
• Enhanced Vibration Resistance: Inverters with secured components and cables to withstand vibration.
• Improved Environmental Resistance: Circuit board coating (IEC60721-3-3 3C2/3S2) for protection against dust, dirt, and corrosion. Plated conductors also available.

Leading Drive Performance

• High Response: Minimal speed fluctuation under changing loads.
• High Torque at Low Speed: Achieves smooth cargo handling and stable movement of heavy objects.
• Speed Response: Achieves 80 ms response time for FR-A800 (compared to 170 ms for FR-A700).
• Starting Torque: 200% (ND rating) at 0.3 Hz for Real sensorless vector control and Vector control.

Control Specifications

• Control Methods: Soft-PWM, High Carrier Frequency PWM, V/F control, Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control, Optimum Excitation Control, Vector Control, PM Sensorless Vector Control.
• Output Frequency Range: 0.2 to 590 Hz (upper limit 400 Hz for Advanced Magnetic Flux Vector Control, Real Sensorless Vector Control, Vector Control, PM Sensorless Vector Control).
• Starting Torque:
  • SLD rating: 120% at 0.3 Hz
  • LD rating: 150% at 0.3 Hz
  • ND rating: 200% at 0.3 Hz (Real sensorless vector control or vector control)
  • HD rating: 250% at 0.3 Hz (Real sensorless vector control or vector control)

Standard Specifications (200V Class)

Rating (Standard Model)

Power Supply

• Rated Input AC Voltage/Frequency: Three-phase 200 to 240 V, 50 Hz/60 Hz
• Permissible AC Voltage Fluctuation: 170 to 264 V
• Permissible Frequency Fluctuation: ±5%

Environmental

• Surrounding Air Temperature: -10°C to +40°C (SLD rating), -10°C to +50°C (LD, ND, HD ratings)
• Surrounding Air Humidity: 90% RH or less (non-condensing) without coating, 95% RH or less (non-condensing) with coating.
• Storage Temperature: -20°C to +65°C
• Altitude: Maximum 1000 m above sea level (derate current 3% per 500 m above 1000 m).

Standard Specifications (400V Class)

Rating (Standard Model)

Power Supply

• Rated Input AC Voltage/Frequency: Three-phase 380 to 500 V, 50 Hz/60 Hz
• Permissible AC Voltage Fluctuation: 323 to 550 V
• Permissible Frequency Fluctuation: ±5%

Environmental

• Surrounding Air Temperature: -10°C to +40°C (SLD rating), -10°C to +50°C (LD, ND, HD ratings)
• Surrounding Air Humidity: 90% RH or less (non-condensing) without coating, 95% RH or less (non-condensing) with coating.
• Storage Temperature: -20°C to +65°C
• Altitude: Maximum 1000 m above sea level (derate current 3% per 500 m above 1000 m).

Outline Dimensions

Standard Model (200V and 400V Classes)

Separated Converter Type (400V Class)

Crane Function Parameters

• Input terminal function selection: Parameters 178 to 189 (T700 to T711)
• Output terminal function selection: Parameters 190 to 196 (M400 to M406)
• Low-speed range speed control P gain 1: Parameter 1400 (A160), Setting range 0 to 1000%. Initial value 9999 (disabled).
• Low-speed range speed control P gain 2: Parameter 1401 (A161), Setting range 0 to 1000%. Initial value 9999 (disabled).
• Low-speed range gain corner frequency 1: Parameter 1402 (A162), Setting range 0 to 60 Hz. Initial value 3 Hz.
• Low-speed range gain corner frequency 2: Parameter 1403 (A163), Setting range 0 to 60 Hz. Initial value 5 Hz.
• Shortest-time torque startup selection: Parameter 1404 (A164), Setting range 0 (disabled) or 1 (enabled). Initial value 0.
• Overload detection time: Parameter 1405 (A165), Setting range 0 to 10 s. Initial value 1 s.
• Inching prevention time: Parameter 1406 (A167), Setting range 0 to 5 s. Initial value 0 s.
• Magnetic flux command during pre-excitation: Parameter 1407 (A167), Setting range 0 to 100%. Initial value 9999.
• Brake opening current for reverse rotation: Parameter 1408 (A168), Setting range 0 to 400%. Initial value 9999.
• Second brake opening current for reverse rotation: Parameter 1409 (A169), Setting range 0 to 400%. Initial value 9999.
• Starting times lower 4 digits: Parameter 1410 (A170), Setting range 0 to 9999. Initial value 0.
• Starting times upper 4 digits: Parameter 1411 (A171), Setting range 0 to 9999. Initial value 0.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror