Technical Data · Publication 25C-TD001 · Rockwell Automation
PowerFlex 527 — Technical Data (25C-TD001)
Specifications, catalog-number breakdown, dimensional drawings, and selection data for the PowerFlex 527 AC drive (Allen-Bradley Bulletin 25C). The PowerFlex 527 is a component-class drive designed to be programmed and commissioned exclusively from Studio 5000 Logix Designer alongside CompactLogix 5370 / ControlLogix 1756-L7x / GuardLogix 1756-L7xS controllers.
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Specifications
Power Ratings
| HP / kW range | 0.5 – 30 HP (0.4 – 22 kW) Normal Duty |
|---|---|
| Input voltage classes | 120V 1-ph, 240V 1-ph, 240V 3-ph, 480V 3-ph, 600V 3-ph (−15% / +10%) |
| Input frequency | 47 – 63 Hz |
| Output frequency | 0 – 590 Hz (programmable) |
| Output voltage | 0 V to rated motor voltage |
| Overload — Normal Duty | 110% for 60 s, 150% for 3 s |
| Overload — Heavy Duty | 150% for 60 s, 180% (200% programmable) for 3 s |
| Carrier (PWM) frequency | 2 – 8 kHz (drive rating based on 4 kHz) |
| Efficiency | 97.5% typical |
| Short-circuit current rating | 100,000 A symmetrical (with specified fuse/CB) |
Control & Motion
| Primary role | Distributed-motion / component-class AC drive — commissioned exclusively from Studio 5000 Logix Designer |
|---|---|
| Required controller | ControlLogix 1756-L7x, GuardLogix 1756-L7xS, or CompactLogix 5370 |
| Configuration model | Drive configuration stored in the Logix controller — supports fast, automatic device replacement (no local keypad commissioning) |
| Motion instructions | Programmed with Studio 5000 embedded motion instructions (e.g., MAM — Motion Axis Move) — same instruction set used for Kinetix servo drives |
| Frequency-control methods | Volts/Hertz (basic and Fan/Pump), Sensorless Vector Control (SVC), SVC Economizer |
| Position loop | Closed-Loop Position Vector Control (with optional encoder card) |
| Velocity loop | Closed-Loop Velocity Vector Control (with optional encoder card) |
| Speed regulation — open loop | ±1% (V/Hz, 60:1 range); ±0.5% (SVC / SVC Economizer, 100:1 range) |
| Speed regulation — closed loop | ±0.1% of base speed across a 100:1 range (with encoder) |
| Frequency accuracy | ±0.05% of set output frequency |
| Safe Torque Off (STO) | Built-in hardwired STO — ISO 13849-1 SIL 3 / PLe Cat 3. Also supports Integrated Safety (network STO) over EtherNet/IP via CIP Safety — SIL 3 / PLe Cat 3. |
Communications
| Network | Built-in dual-port EtherNet/IP, 10/100 Mbps |
|---|---|
| Topology | Linear, Star, and Device Level Ring (DLR) — DLR provides fault-tolerant ring recovery |
| Safety protocol | CIP Safety over EtherNet/IP — carries standard control data + safety data on the same network |
| Software | Studio 5000 Logix Designer (formerly RSLogix 5000) v24 or later required |
| Network config | Online EDS file creation with RSNetWorx; Add-On Profile (AOP) provided in Studio 5000 |
| Device replacement | Configuration resides in the Logix controller, enabling fast automatic replacement without re-keying parameters |
| Common DC Bus | Drive is optimized for Common DC Bus / Shared DC Bus installations with direct DC-bus terminal connections |
Environmental
| Operating temperature (without derating) | −20 to +50 °C (−4 to +122 °F) |
|---|---|
| Operating temperature (with derating) | up to +60 °C (+140 °F); up to +70 °C (+158 °F) with optional Control Module Fan kit |
| Storage temperature | −40 to +85 °C (Frames A–D); −40 to +70 °C (Frame E) |
| Relative humidity | 0 – 95% non-condensing |
| Altitude | 1000 m (3300 ft) without derating; up to 4000 m (13,200 ft) with derating (2000 m max for 600 V drives) |
| Enclosure | IP20 / NEMA Open (standard); optional IP30 / NEMA/UL Type 1 conduit-box kit |
| Pollution degree | Pollution Degree 1 and 2 — all enclosures acceptable |
| Conformal coating | IEC 60721-3-3 level 3C2 (chemical and gases) |
| Shock / vibration | 15 g / 2 g (Frames A–D operating); 15 g / 1.5 g (Frame E); 30 g / 2.5 g non-operating (transportation) |
| Sound pressure (max, A-weighted @ 1 m) | 53 dBA (Frame A/B), 57 dBA (C), 64 dBA (D), 68 dBA (E) |
Catalog Number Format
How to read an Allen-Bradley 25C catalog number. Each position encodes a specific configuration attribute.
Position
Meaning
Example
25C
Drive family — PowerFlex 527 bulletin prefix
25C
-
Dash separator
-
Voltage Rating (pos. 4)
V = 120 V 1-ph, A = 240 V 1-ph, B = 240 V 3-ph, D = 480 V 3-ph, E = 600 V 3-ph
B = 240 V three-phase
Current/HP Code (pos. 5–7)
Rated output amperage / HP code (e.g., 2P5 = 2.5 A / 0.5 HP; 017 = 17 A / 5 HP; 043 = 43 A / 30 HP)
2P5 = 2.5 A / 0.5 HP
Enclosure (pos. 8)
N = IP20 NEMA Open (only enclosure option currently offered; IP30/Type 1 added via conduit-box kit)
N = IP20 open
Reserved (pos. 9)
Reserved digit — always 1
1
EMC Filter / Emission Class (pos. 10)
0 = no filter, 1 = integrated EMC filter
0 = no filter
Interface Module (pos. 11)
Reserved — always 1 (Standard)
1
Braking (pos. 12)
4 = Standard (integral brake transistor on all ratings)
4
Communication Protocols
Supported industrial networks and field buses for the products covered by this publication.
EtherNet/IP (dual-port) Built-in 10/100 Mbps dual-port adapter. Supports linear, star, and Device Level Ring (DLR) topologies for fault-tolerant media redundancy.
CIP Motion over EtherNet/IP Drive is programmed with the Studio 5000 embedded motion instruction set (same instructions used for Kinetix servo drives). Enables coordinated / distributed motion with CompactLogix 5370 and ControlLogix 1756-L7x controllers.
CIP Safety over EtherNet/IP Integrated Safety — carries standard control data and safety data on the same network. Delivers network Safe Torque Off (SIL 3 / PLe Cat 3).
Studio 5000 Add-On Profile (AOP) PowerFlex 527 AOP is included in Studio 5000 Logix Designer v24 or later. RSNetWorx supports online EDS file creation for EtherNet/IP configuration.
Certifications & Compliance
c-UL-us — Listed to UL 508C and CSA C22.2 No. 274; UL 61800-5-1 and CSA C22.2 No. 274-17
CE — EU LVD 2014/35/EU, EMC 2014/30/EU, Machinery Directive 2006/42/EC, RoHS 2011/65/EU, Ecodesign 2009/125/EC (EN 61800-3, EN 61800-5-1)
UKCA — UK Electrical Equipment (Safety), EMC, Machinery, Ex, RoHS, and Ecodesign regulations
RCM — Australian Communications & Media Authority (EN 61800-3)
TÜV Rheinland Functional Safety — Safe Torque Off certified to ISO 13849-1 SIL 3 / PLe and EN 61800-5-2 / EN 62061 SIL 3 / PLe (Network STO via CIP Safety)
ATEX — Group II Category (2) GD applications with ATEX-approved motors (TÜV 15 ATEX 7696 X)
UKEX — 2016 No. 1107 Ex regulations, Group II Cat (2) GD (TUV 21 UKEX 7033 X)
KCC — Korean Registration of Broadcasting and Communications Equipment (Radio Waves Act Art. 58-2, Cl. 3)
Lloyd's Register — Type Approval Certificate 15/80016(E1) (marine)
ODVA — EtherNet/IP conformance tested
AC 156 — Seismic Qualification (Trentec) for USA excluding site class F
SEMI F47 — IEC 61000-4-11 / IEC 61000-4-34 voltage-sag immunity
IEEE P1668 compliant
RoHS — EU Directive 2011/65/EU
Ecodesign — EU 2019/1781 and UK SI 2021 No. 745 — IE2 efficiency class (see PFLEX-TD003)
Designed to meet NFPA 70 (US NEC) and NEMA ICS 7.1 applicable sections
Document Contents
Full PDF covers the following topics in detail:
- Summary of Changes and Product Overview positioning the 527 as a Logix-only distributed-motion drive
- Advanced Features — I/O wiring block diagram, Common DC Bus support, improved ride-through, encoder option card, Safe Torque Off
- Communications and Software — EtherNet/IP topologies (linear / star / DLR), CIP Safety, Studio 5000 AOP
- Full Catalog Number Explanation covering voltage code, current/HP code, enclosure, EMC filter, and braking digit
- Technical Specifications — Protection (bus over/undervoltage trip points, power ride-through, motor overload), Electrical (voltage tolerance, IGBT output stage, internal DC bus choke), Control (regulation accuracy across VHz / SVC / closed-loop)
- Control I/O — 4 digital inputs, 2 analog inputs (isolated ±10 V / 4–20 mA), 1 analog output, 2 Form A/B relays, 2 opto outputs, dedicated dual-channel safety inputs
- Environmental Specifications — temperature, altitude, humidity, shock/vibration, conformal coating, sound pressure by frame
- Product Selection tables by voltage class, with HP/kW, output current, frame size, and total watts loss for every 25C- catalog number
- Drive Dimensions and Weights — Frames A through E (1.1 to 12.9 kg)
- Design Considerations — mounting torques, zero-stacking rules, derating curves, fuse and circuit-breaker ratings, STO function detail
Frequently Asked Questions
How is the PowerFlex 527 different from the PowerFlex 525?
They share the 520-series frame, power stage, and many accessories, but they are positioned differently. The PowerFlex 525 (Bulletin 25B) is a standalone general-purpose drive with its own keypad and Connected Components Workbench programming. The PowerFlex 527 (Bulletin 25C) has no local commissioning path — drive configuration is stored in the Logix controller and programmed exclusively from Studio 5000 Logix Designer using the same motion instruction set used for Kinetix servo drives. The 527 also adds CIP Safety (Network STO) and SIL 3 / PLe integrated safety, whereas the 525's built-in STO is hardwired only.
Why would I specify a 527 instead of a Kinetix servo drive?
The 527 is intended for machines that mix servo-style distributed motion with induction-motor loads (pumps, fans, feed/discharge conveyors) on the same controller and network. You get a single Studio 5000 project, one motion instruction set (MAM, MAG, etc.), and one EtherNet/IP network handling both Kinetix servos and PowerFlex 527 AC drives — which saves engineering time and spare-parts count versus mixing programming toolchains.
Which controllers can the PowerFlex 527 be used with?
Per publication 520-TD002, the PowerFlex 527 is designed to connect and operate ONLY with ControlLogix 1756-L7x, GuardLogix 1756-L7xS, and CompactLogix 5370 controllers running Studio 5000 Logix Designer v24 or later. It is not intended to run standalone or with Micro800 / MicroLogix controllers.
What network connectivity is built in?
Every PowerFlex 527 ships with a built-in dual-port EtherNet/IP adapter (10/100 Mbps) that supports linear, star, and Device Level Ring (DLR) topologies. The same port carries standard I/O, CIP Motion, and CIP Safety traffic. There are no optional communication adapter slots — the 527 is EtherNet/IP-only by design.
Does the PowerFlex 527 support Safe Torque Off?
Yes. STO is standard on every 527 and is certified to ISO 13849-1 SIL 3 / PLe Cat 3. It can be applied either via the dual-channel hardwired safety inputs on the control terminal block, OR as Integrated Safety over EtherNet/IP via CIP Safety — also SIL 3 / PLe Cat 3 — when paired with a GuardLogix 1756-L7xS controller. Note: Safe Torque Off is the only safety function offered; more advanced drive-resident safety functions (Safe Stop 1, Safe Speed Monitoring, etc.) are not supported on the 527 platform.
Can I use the PowerFlex 527 for position control?
Yes, with limitations. The 527 supports basic closed-loop position control using Logix motion instructions such as MAM (Motion Axis Move) when fitted with the optional incremental encoder option card (line-driver, 5/12 V quadrature, up to 250 kHz). It is not a servo drive — there is no absolute-feedback support and torque bandwidth is lower than a Kinetix drive — but for indexing, feed-to-length, and basic positioning on induction-motor axes it uses the same motion instruction set as Kinetix, which simplifies the program.
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