Fast Turnaround & Testing
Phone support by engineers
Allen-Bradley PowerFlex 700 20BD156F0AYNARC0 | 125 kW / 156 A VFD
Diagnose & Repair or Next-Day Replacement
If your PowerFlex 700 fails or throws random faults, Flexa Systems can repair your 20BD156F0AYNARC0 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): 156
- Power Rating: 125 kW / 168 HP
- Frame: 6
- Enclosure: Open/Flange Mount – Front: IP00, NEMA/UL Type Open; Back/Heatsink: IP54, NEMA 12
- HMI Presence: Blank Cover
- Documentation: Manual
- Brake: Yes
- Internal Braking Resistor: No
- Emission: CE Filter: Yes, CM Choke: Yes
- Comm Slot: N/A
- Control & I/O: Vector | 24V DC
- Feedback: None
Most Common Faults We Can Solve
These are frequent PowerFlex 700 issues. We diagnose quickly and repair at the component level.
- 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.
- DB Resistance: Internal DB resistor ohms out of range.
Fix: Replace resistor; we supply/fit correct DB module and test.
- Input Phase Loss: Ripple indicates a missing input phase or blown fuse.
Fix: Inspect fuses and incoming power; we verify phase balance and replace protection if necessary.
- Encoder Quad Err: Both channels changed in one clock (noise or fault).
Fix: Reduce noise/replace encoder; we tidy shielding/grounds and retest.
- Output Phase Loss: Current lost in one/more output phases.
Fix: Check motor/drive wiring; we test phase continuity and repair output stage/wiring faults.
- Heatsink OverTemp: Heatsink temperature above limit (or very low).
Fix: Verify ambient, fan operation, and load; we replace fans and clean/recertify cooling path.
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.