Allen-Bradley 20BE027A0AYNAND0 PowerFlex 700S AC Drive — 27A / 480V / Frame E

AB · PowerFlex 700S · Frame E · 27A / 18.5 kW / 480V 3-Phase

The 20BE027A0AYNAND0 is a high-performance AC drive from the Allen-Bradley PowerFlex 700S family (Phase II / SyncSpeed architecture), part of the broader Allen-Bradley (Rockwell) drive portfolio carried by KOEED. Rated 27 A continuous at 480 V 3-phase — roughly 25 HP / 18.5 kW — this Frame E unit uses Force Technology flux-vector control for tight speed, torque and position regulation. It is configured without an HIM (A0), with enhanced control firmware (Y), no internal brake IGBT (N), no option-communication module (AN), and ships in the IP20 / 480 V (D0) enclosure rating.

The PowerFlex 700S is now considered a legacy platform — superseded in many new designs by the PowerFlex 755 and PowerFlex 755TS — but a very large installed base keeps it in active service across paper, metals, printing, hoist, extruder and draw-texturing lines. KOEED keeps the 20BE frame alive with tested stock, cross-reference notes, and migration advice. If you are comparing this unit to a current alternative, the PowerFlex 755 (20G) and PowerFlex 525 (25B) families are the most common modern replacements, while the 700S is still the right choice for in-place repair of an existing cabinet.

1. Key Technical Specifications & Overview

Catalog-string decoder: 20BE = PowerFlex 700S Frame E · 027 = 27 A nominal · A0 = no HIM · Y = enhanced control · N = no brake IGBT · AN = no option module · D0 = IP20 / 480 V. KOEED keeps the related 20BE040A0AYNANC0, 20BE052A0AYNANC0, and 20BE6P0A0AYNANC0 Frame E variants on the same shelf.

2. Application Scenarios — Where It Fits

The 700S sits between a standard V/Hz drive and a dedicated servo, which is exactly where many process lines live. It is most often specified in the following duty profiles:

• Paper & web handling — dryer-section drives, calender control, reel tension loops, and basis-weight trim where the 700S’s torque-proving and zero-speed holding are real advantages.
• Printing & register control — web offset and CI flexo presses that need tight dancer / register loop bandwidth and deterministic EtherNet/IP I/O.
• Crane, hoist & lift — bridge, trolley and hoist motions with mechanical-load sensing, anti-sway, and STO integrated for SIL 3 stops.
• Extrusion & draw-texturing — polymer lines where line speed must stay locked to a master reference with near-zero speed ripple.
• Metals & winder / unwinder — coilers, payoffs, tension-controlled pay-off reels, and process-line bridle rolls.
• Test stands & dynamometers — the position-control mode and Force Technology make the 700S a frequent choice for motor and transmission test cells.
• Converting & packaging lines — flying-knife / registration cut-off applications where the encoder feedback and SyncSpeed firmware shine.

Outside the AB world, comparable motion / vector drives we routinely quote next to the 700S include Siemens Sinamics S120, Mitsubishi MR-J4 + MDS, Yaskawa Σ-V / Σ-7 with MP controller, and Schneider Lexium 32 / Altivar Process. For lighter loads the Omron MX2 / RX drives, Panasonic Minas A5 servos, and KEYENCE vision-guided motion platforms all show up in adjacent cabinets. On the CNC side, the Fanuc αi / βi servo + spindle pair is the most common cross-reference for retrofit work.

3. Integration & Wiring Notes

The 20BE frame expects a 480 Y/277 V three-phase feed on the input bus (R, S, T) and a motor pigtail (U, V, W) sized for the 27 A continuous rating. A few things to plan for before the cables land:

• Line impedance & fusing — drive semiconductor protection requires the input fusing and feeder impedance called out in the 700S user manual. Mismatched impedance is the single most common cause of nuisance input-rectifier faults on retrofits.
• EMC & grounding — keep the PE / functional-ground bond short, route motor leads in shielded VFD cable, and separate the encoder feedback cable by at least 200 mm from the power conductors.
• Encoder wiring — the 700S supports Stegmann 11-bit and Heidenhain 17-bit feedback in the same slot, but the DIP-switch and parameter block must match the connected device. Mismatched wiring is the number-one source of “encoder loss” faults at first power-up.
• STO wiring — the integrated Safe Torque Off uses a dedicated two-channel terminal block. The STO loop must be wired through the safety relay / safety PLC; do not jumper it out, even for bench test.
• Control I/O — the default 24 V DC I/O terminals are grouped (digital inputs, digital outputs, analog in, analog out, relay). Plan your run / enable / fault-reset wiring before commissioning so you are not re-crimping in a live cabinet.
• Communication option — the AN suffix means the drive ships without a comm card. If the cabinet is on EtherNet/IP, you will need a 20-750-ENETR or equivalent module — or a different catalog suffix that includes it.
• Programming software — the 700S programs through RSLogix 5000 / Studio 5000 (the older DriveExplorer / DriveTools SP path also still works for the standalone parameter view). Make sure the RSLinx driver version is current before pushing a project.

For cabinet-level grounding, fusing, and wire-bend-radius details, the AB 700S technical data and wiring diagrams remain the authoritative source. If you need a hand interpreting a specific terminal block, send the photo of the nameplate plus the terminal drawing to Moritta@KOEED.COM and we will route it to the engineering desk.

4. Installation & Commissioning Tips

The 700S is a deep device. Treat it like a servo drive, not a generic inverter. The points below cover the patterns we see most often in 700S retrofits and field-service work:

• Verify the suffix before mounting. The catalog string 20BE027A0AYNAND0 must match the cabinet drawings — especially voltage class (D0 = 480 V), brake (N = none), and comm option (AN = none).
• Cabinet ventilation. Frame E dissipates heat; size the enclosure and the fan for the worst-case ambient, not the room nominal. Derate above 40 °C if the drive is mounted side-by-side.
• Auto-tune with the real motor. The Force Technology autotune “rotational” and “stationary” routines are very good, but only if the motor nameplate and the encoder are correctly entered. Use the actual rotor inertia, not the marketing number, on high-inertia loads.
• Bring up in V/Hz first. Prove direction, current, and feedback polarity on a no-load motor before closing the vector loop. Direction reversals at rated speed under load are expensive.
• Check grounding of the encoder shield. Ground one end only (drive end). Floating shields inject noise that masquerades as encoder faults.
• Save the project twice. One copy on the ACD file-share, one in the local HIM or SD card. DriveTools / Studio 5000 param-backup files are not the same as the controller program.
• Document the STO chain. If the safety system ever gets re-certified, the wiring drawing of the STO loop is what the inspector will ask for first.

For the latest firmware revision notes and any 700S errata, the AB knowledge base (TechConnect) is the primary source. The KOEED PLC Error Code Database also covers the most common 700S fault codes, and our AI Diagnostic Tool can interpret a nameplate photo or a drive fault log if you need a fast second opinion.

5. Procurement, Warranty & Lead Time

If you are looking for the 20BE027A0AYNAND0 as a single replacement, send the part number to Moritta@KOEED.COM and we will confirm stock, condition, and lead time the same business day. If you are rebuilding a full cabinet, attach your BOM to the same email and KOEED will roll the 700S, any 20-HIM-A6 operator interface, the 20-750-ENETR Ethernet option, and any related PowerFlex 755 / PowerFlex 525 spares into a single shipment.

KOEED is a multi-brand industrial-automation distributor covering Allen-Bradley, Siemens, Mitsubishi, Omron, Fanuc, Schneider, Yaskawa, Panasonic, and KEYENCE side by side — so a single BOM can include the AB drive plus a Siemens HMI, a Mitsubishi servo, or a KEYENCE vision system, all under one quote and one shipment. Send the full list to Moritta@KOEED.COM or open a structured request on the Create a Quote page.

Questions before you buy? Email Moritta@KOEED.COM with the drive catalog string, the motor nameplate, and a one-line description of the application — we will reply with stock, lead time, and any cross-reference options to the current PowerFlex 755 / 755TS family.