Rush Service Available
Same-day evaluation
Allen-Bradley PowerFlex 700 20BD535N3ANNNCD1 | 450 kW / 535 A VFD
Expert Repair or Tested Spare on the Shelf
If your PowerFlex 700 fails or throws random faults, Flexa Systems can repair your 20BD535N3ANNNCD1 in-house at the component level or ship you a fully tested replacement unit from our stocked inventory.
Key Specifications
- Input Voltage: 480V AC
- Current (Amps): 535
- Power Rating: 450 kW / 603 HP
- Frame: 8
- Enclosure: Open/Flange Mount – Front: IP00, NEMA/UL Type Open; Back/Heatsink: IP54, NEMA 12
- HMI Presence: LCD Display, Full Numeric Keypad
- Documentation: Manual
- Brake: No
- Internal Braking Resistor: No
- Emission: CE Filter: No, CM Choke: No
- Comm Slot: ControlNet (Coax)
- Control & I/O: Vector | 115V AC
- Feedback: Encoder, 12V/5V
Most Common Faults We Can Solve
These are frequent PowerFlex 700 issues. We diagnose quickly and repair at the component level.
- DB Resistance: Internal DB resistor ohms out of range.
Fix: Replace resistor; we supply/fit correct DB module and test.
- Phase U/V/W to Ground: Phase-to-ground fault detected on the output.
Fix: Check motor cable/motor for grounds; replace drive if damage found.
- OverVoltage: DC bus voltage exceeded the maximum value.
Fix: Verify line transients; extend decel time or add a dynamic brake option; we can size/install a DB kit and soak-test the drive.
- UnderVoltage: DC bus dropped below the minimum threshold.
Fix: Check incoming AC for sags/interruption; we test input and DC bus health and stabilize with line conditioning if needed.
- Phase UV/VW/UW Short: Excessive current between output terminals.
Fix: Check for shorted motor/wiring; we repair/replace damaged output stage.
- OverSpeed Limit: Speed correction exceeded [Overspeed Limit].
Fix: Remove overhauling load or raise limit; we re-tune slip/bus regulation.
- Encoder Quad Err: Both channels changed in one clock (noise or fault).
Fix: Reduce noise/replace encoder; we tidy shielding/grounds and retest.
Important Notes
Pricing listed on the website is for reference only and is subject to change over time.
Need to verify compatibility? Send a photo or the full catalog number and Flexa Systems will confirm the best match.
We repair and sell Allen-Bradley PowerFlex 700 drives. Whether you need a quick swap or a thorough in-house repair, we’ve got you covered.
- Every unit is evaluated and test-run under load.
- Turnaround & pricing vary with condition, options, and availability.
- Rush service / exchange available on request.
- 12–24 month warranty on repairs and reman units (where applicable).
Repair & Sales • PowerFlex Specialists
Component-level repairs, reman units, and ready-to-ship replacements when available.
Check Availability
Send your requirement — we’ll match repair or stock options.