Allen-Bradley PowerFlex 755 Modules – 20AD014C0AYNANC0

Name: Allen-Bradley PowerFlex 755 Modules – 20AD014C0AYNANC0
Brand: Allen-Bradley

Model: 20AD014C0AYNANC0

Brand Allen-Bradley

Series PowerFlex 755

Model 20AD014C0AYNANC0

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Technical Dossier

Product Details And Specifications

Allen-Bradley PowerFlex 755 Series Technical Notes

The Evolution of PowerFlex 755 Architecture

The PowerFlex 755 was introduced by Rockwell Automation as the successor to the PowerFlex 700 and PowerFlex 700H platforms, addressing limitations in scalability, network integration, and embedded safety. The original 20A (standard) and 20G (high power) frame variants established the catalog structure still in use today. Early firmware revisions (pre-v4.x) lacked full Safe Torque Off (STO) support and required external safety relays; this was resolved in the v5.x firmware generation, which introduced SIL 2 / PLd-rated integrated safety functions. The introduction of the 20-750 option card platform allowed a single drive chassis to support simultaneous multi-protocol communication — EtherNet/IP, DeviceNet, PROFIBUS DP, and ControlNet — without external gateways. Frame sizes A through J cover the full power range, with frames G–J requiring dedicated input reactors and DC bus chokes for harmonic compliance in sensitive grid environments. The PowerFlex 755T (20G prefix) variant introduced TotalFORCE technology, incorporating advanced inertia compensation and load observer algorithms for high-dynamic applications such as winders and hoists. Compatibility between 755 and 755T option cards is partial; engineers migrating from 755 to 755T must audit option card slots against the 755T hardware compatibility matrix (Rockwell Publication 750-TD100).

PowerFlex 755 Full Catalog & Functionalities (SKU List)

The following catalog numbers represent verified, commonly deployed PowerFlex 755 units and option modules, organized by functional category.

AC Drive Units (Frame A–F, 400V Standard)

20AD014C0AYNANC0: 7.5 HP / 5.5 kW, 400V 3-phase, frame A, IP20, EtherNet/IP embedded, no option cards.
20AD022C0AYNANC0: 11 kW, 400V 3-phase, frame A, standard I/O, open type enclosure, general purpose.
20AD034C0AYNANC0: 18.5 kW, 400V 3-phase, frame B, standard I/O, pump and fan duty rated.
20AD052C0AYNANC0: 30 kW, 400V 3-phase, frame C, standard I/O, open type, general purpose.
20AD072C0AYNANC0: 37 kW, 400V 3-phase, frame C, standard I/O, open type enclosure.
20AD104C0AYNANC0: 55 kW, 400V 3-phase, frame D, standard I/O, open type.
20AD140C0AYNANC0: 75 kW, 400V 3-phase, frame D, standard I/O, open type.
20AD170C0AYNANC0: 90 kW, 400V 3-phase, frame E, standard I/O, open type.
20AD205C0AYNANC0: 110 kW, 400V 3-phase, frame E, standard I/O, open type.
20AD260C0AYNANC0: 132 kW, 400V 3-phase, frame F, standard I/O, open type.

Option Cards & Communication Adapters (20-750 Platform)

20-750-2262C-2R: Dual-port EtherNet/IP adapter, DLR ring topology support, embedded web server.
20-750-DNET: DeviceNet communication adapter, scanner/adapter mode selectable via parameter.
20-750-PBUS: PROFIBUS DP adapter, up to 12 Mbps, slave mode, GSD file provided.
20-750-CNET: ControlNet adapter, coax media, scheduled and unscheduled messaging supported.
20-750-ENETR: Dual-port EtherNet/IP adapter with DLR support and integrated diagnostics web page.
20-750-2263C-2R: Fiber optic EtherNet/IP adapter for high-EMI industrial environments.

Safety Option Modules

20-750-S1: Safe Torque Off (STO) module, SIL 2 / PLd rated, single-channel input.
20-750-S3: Advanced safety module, SIL 2 / PLd, supports SS1, SS2, SLS, SDI, SBC safety functions.

Encoder & Feedback Modules

20-750-ENC-1: Single incremental encoder feedback module, 5–12V differential, up to 250 kHz.
20-750-DENC-1: Dual incremental encoder module for master-follower and closed-loop position control.

Quality Control for the PowerFlex 755 Range

The PowerFlex 755 platform presents specific quality verification challenges due to its multi-slot option card architecture and high-speed backplane communication bus (750 Series I/O bus, 500 kbps). DriveKNMS applies the following test protocol to all PowerFlex 755 units processed through its facility:

Visual inspection of IGBT gate driver boards, DC bus capacitor banks, and option card connectors for corrosion, thermal damage, or mechanical stress fractures.
DC bus capacitance measurement and ESR testing to verify capacitor health against Rockwell published derating curves.
Power-on functional test at rated input voltage with a resistive load bank, verifying output voltage symmetry across all three phases.
Option card communication verification: each installed 20-750 option card is tested for correct enumeration on the drive internal I/O bus and for successful network handshake on its respective fieldbus protocol.
Parameter backup and firmware version verification using Connected Components Workbench or Studio 5000 Logix Designer.
Safe Torque Off (STO) functional test for units equipped with 20-750-S1 or 20-750-S3 safety cards, per IEC 62061 test procedures.

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