Texas-Based Shop & Warehouse
12–24 month warranty
Allen-Bradley PowerFlex 700 20BD156F3QNNAND0NNAE | 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 20BD156F3QNNAND0NNAE 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: LCD Display, Full Numeric Keypad
- Documentation: No Shipping Package (Internal Use Only)
- Brake: No
- Internal Braking Resistor: No
- Emission: CE Filter: Yes, CM Choke: Yes
- Comm Slot: None
- Control & I/O: Vector | 115V AC
- Feedback: None
Most Common Faults We Can Solve
These are frequent PowerFlex 700 issues. We diagnose quickly and repair at the component level.
- Phase UV/VW/UW Short: Excessive current between output terminals.
Fix: Check for shorted motor/wiring; we repair/replace damaged output stage.
- 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.
- SW OverCurrent: 1 ms current exceeded its rating (above cont., below HW limit).
Fix: Reduce load/boost/brake volts; we capture waveforms and reset to safe values.
- Ground Fault: >25% rating current to earth ground detected.
Fix: Meg-check motor and cable for ground; we isolate insulation faults and re-terminate.
- Heatsink OverTemp: Heatsink temperature above limit (or very low).
Fix: Verify ambient, fan operation, and load; we replace fans and clean/recertify cooling path.
- OverSpeed Limit: Speed correction exceeded [Overspeed Limit].
Fix: Remove overhauling load or raise limit; we re-tune slip/bus regulation.
- 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.
Important Notes
Pricing listed on the website is for reference only and is subject to change over time.
Send us your full catalog number (or a photo) and Flexa Systems will verify compatibility before you order.
We keep you running with repair or replacement for Allen-Bradley PowerFlex 700 drives—whichever gets you back online faster.
- Units are inspected, repaired as needed, and load-tested.
- Lead time and pricing depend on condition and availability.
- Exchange and hot-rush options offered on request.
- 12–24 month warranty for repairs/remans where applicable.
Talk to a Drive Specialist
Texas-based in the Dallas–Fort Worth area, serving all 50 states. Same-day answers and fast turnarounds.
Contact Us
Send your part number or a photo — we’ll confirm compatibility and options.