Product Description
The Allen-Bradley 20G1AND186AN0NNNNN PowerFlex 755 adjustable frequency AC drive, rated at 186 Amps, offers user-adjustable frequency and a wide range of selectable control methods (Vector Control, Sensorless Vector Control, Volts per Hertz, Permanent Magnet Motor Control, Open/Closed Loop Speed Regulation) for diverse industrial applications. It withstands 1 g peak vibration with 0.040 inches displacement and pollution degrees 1 and 2. Protection features include AC input overvoltage trip at 576V, undervoltage trip at 300V, bus overvoltage trip at 815V DC (nominal bus voltage protection at 648V DC), and line transient protection up to 6000V. It provides a minimum 0.5-second and typical 2.0-second logic control ride-through time, phase-to-ground and phase-to-phase output short circuit protection, and a frequency tolerance of 47-63 Hertz. DC input voltage tolerance is +/- 10% of the nominal bus voltage. Rockwell Automation recommends semiconductor fuses for optimal protection. The drive supports safety ratings up to SIL 3/PLe/Cat 4, hardwired/networked safety functions (STO, Safe Speed Monitor), and networked integrated safety functions. It also supports various industrial communication protocols including Ethernet IP, DeviceNet, ProfiBus DP, ControlNet, HVAC protocols, Bluetooth, CANopen, and LonWorks. Installation should be in an industrial environment without extreme temperatures or moisture.
Is Your Device Showing These Signs?
The Allen Bradley 20G1AND186AN0NNNNN PowerFlex 755 AC drive commonly experiences issues such as IGBT failures due to overcurrent or voltage spikes, capacitor bank degradation leading to DC bus undervoltage faults, and communication errors stemming from corrupted firmware or faulty Ethernet/IP modules. Resolving these problems includes replacing damaged IGBTs, reforming or swapping out degraded capacitors, reflashing the firmware to the latest revision, and troubleshooting network connectivity by verifying IP address configurations and replacing defective communication cards. Parameter corruption within the drive's memory also occurs, necessitating a factory reset and subsequent reprogramming of application-specific parameters. Overheating caused by inadequate cooling or a malfunctioning fan is addressed by cleaning heat sinks and replacing the cooling fan assembly.
Technical specifications
The Allen-Bradley 20G1AND186AN0NNNNN PowerFlex 755 AC drive is a 186 Amp adjustable frequency drive designed for diverse industrial applications. It offers multiple control methods, robust protection features (over/undervoltage, short circuit, transient protection), and a wide frequency tolerance. It boasts a decent ride-through time, supports high safety ratings (SIL 3/PLe/Cat 4) with various safety functions, and is compatible with numerous industrial communication protocols. Proper installation in a suitable industrial environment is crucial.
Our Repair Process for the
20G1AND186AN0NNNNN
Our repair process for the Allen Bradley 20G1AND186AN0NNNNN PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the malfunction. Technicians replace damaged IGBTs to resolve overcurrent or voltage spike issues. Degraded capacitor banks are either reformed or replaced to eliminate DC bus undervoltage faults. Corrupted firmware prompts a reflash to the latest revision, while communication errors are rectified through verification of IP address configurations and replacement of defective communication cards. Parameter corruption necessitates a factory reset followed by meticulous reprogramming of application-specific parameters. Overheating concerns are addressed by thoroughly cleaning heat sinks and replacing the cooling fan assembly to ensure optimal thermal management.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.