Allen Bradley PowerFlex 753 AC Drive 20F11NC060JA0NNNNN

The Allen Bradley 20F11NC060JA0NNNNN is a versatile AC drive from the PowerFlex 753 series for 400V industrial networks. This model provides reliable motor control for applications up to 40 horsepower under normal duty. It features sine coded PWM control, forced air cooling, and both AC and DC input options. The 20F11NC060JA0NNNNN includes comprehensive protective features and embedded I/O for easy integration.

Drive Identification & Power Ratings

• Brand: Allen Bradley (Rockwell Automation)
• Model: 20F11NC060JA0NNNNN
• Series: PowerFlex 753 AC Drive
• Input Power: Three-Phase, 400 V AC (+10%/-10%) / 540 V DC
• Input Type: AC Input with Precharge and DC Terminals
• Rated Output Power: 30 kW
• Output Power (Normal Duty): 30 kW / 40 HP
• Output Power (Heavy Duty): 22 kW / 30 HP (Estimated)
• Output Current: 60 Amps (Nominal)
• Output Frequency Range: 0 to 590 Hz
• Input Frequency Tolerance: 47 to 63 Hz

Key Features & Internal Configuration

• Control Method: Sine Coded Pulse Width Modulation (PWM) with programmable carrier frequency.
• Embedded I/O: Standard digital and analog inputs/outputs provided.
• Dynamic Braking: Internal Braking Transistor Included (requires external resistor).
• EMI Filtering: Filter Included with Common Mode (CM) Capacitor Jumper Installed.
• Cooling Method: Forced Air Cooling.
• DC Terminals: Available for connection to an external DC source or bus.
• Human Interface Module (HIM): Not included (blanking plate installed).
• Frame Size: Frame 4 or 5

Comprehensive Protective Features

• AC Input Protection: Overvoltage Trip, Undervoltage Trip.
• Ground Fault Protection: Ground Fault Trip.
• Short Circuit Protection: Short Circuit Trip.
• DC Bus Protection: Bus Overvoltage Trip, Bus Undervoltage Trip.
• Drive Protection: Overcurrent Trip, Motor Overload Protection.
• Thermal Protection: Heat Sink Overtemperature Monitoring.

Physical & Environmental Specifications

• Unit Weight: 22.68 kg (50.00 lbs)
• Mounting Style: Panel Mount (Open Type)
• Enclosure Protection: Standard Protection (IP20/IP00 chassis).
• Operating Temperature: 0°C to 40°C (32°F to 104°F) in non-condensing environment.
• Storage Temperature: -40°C to 70°C (-40°F to 158°F) non-condensing.
• Relative Humidity: 5% to 95% (non-condensing)
• Altitude: Suitable for operation up to 1000m without derating.

Electrical Performance

• Overload Capacity: Typical 150% overload for 60 seconds (Heavy Duty basis).
• Starting Torque: Up to 180% of motor rated torque in sensorless vector mode.
• Speed Regulation: ±0.5% of base speed (sensorless vector).
• Efficiency: High efficiency design, typically > 97%.
• Carrier Frequency: Adjustable to optimize motor performance and acoustic noise.

Installation & Wiring Guidelines

• Mount the drive vertically on a solid panel within a protective electrical cabinet.
• Ensure adequate clearance above and below the unit (min. 100mm) for the forced air cooling system.
• For AC operation, connect three-phase 400V power to terminals L1/R, L2/S, L3/T.
• For DC bus operation, connect the DC source to the provided DC+ and DC- terminals.
• Connect the motor to output terminals T1/U, T2/V, T3/W using appropriately sized conductors.
• Install a properly rated disconnect switch and fuses or circuit breaker upstream.
• Establish a reliable ground connection to the drive's Protective Earth (PE) terminal.
• Use shielded cables for control wiring and ground the shield at the drive end for EMC.

Packaging & Shipping Details

• Package Contents: 1 x Allen Bradley 20F11NC060JA0NNNNN AC Drive Unit
• Documentation: Quick Start guide included.
• Shipping Weight: Approximately 25 kg (55 lbs) with packaging.
• Shipping Methods: Available via FedEx, UPS, or DHL courier services.

Warranty Information

• Coverage Period: 12 months from the date of purchase.
• The warranty covers defects in materials and manufacturing under normal operating conditions.
• Installation must adhere to all specified electrical, thermal, and environmental limits.
• Support is available for initial parameter setup and application guidance.

Frequently Asked Questions (FAQ)

• What is the advantage of Sine Coded PWM control?

Sine coded PWM generates a smoother voltage waveform to the motor compared to standard PWM. This reduces motor heating, lowers audible noise, and minimizes stress on motor insulation, leading to longer motor life, especially at lower output frequencies.

• Can I use this 400V drive on a 480V power supply?

No, the drive is rated for a nominal input of 400V AC. Applying 480V will exceed its maximum input voltage rating, likely causing an immediate overvoltage fault and risking damage. You must select a PowerFlex 753 model rated for 480V input.

• What does the installed Common Mode Capacitor Jumper do?

The jumper completes the circuit for an internal capacitor in the EMC filter that connects to ground. Keeping it installed is the standard configuration for effective noise filtering and meeting EMC emission standards in typical installations.

• How do I connect an external braking resistor?

Connect the resistor to the drive's B1 (positive) and B2 (negative) terminals. You must then enable the dynamic braking function in the drive parameters and set the braking voltage level and time to match your resistor's specifications and application needs.

• Is the 47-63 Hz input range suitable for generator power?

Yes, this wide frequency tolerance makes the drive well-suited for operation on power from generators or unstable grids where frequency may fluctuate, provided the voltage remains within the 400V +/-10% specification.

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