Drive Specialists Since 2012
Free failure analysis
Allen-Bradley PowerFlex 700 20BD156F3ANNAND1 | 125 kW / 156 A VFD
Repair Now or Swap Units — Your Call
If your PowerFlex 700 fails or throws random faults, Flexa Systems can repair your 20BD156F3ANNAND1 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: Manual
- Brake: No
- Internal Braking Resistor: No
- Emission: CE Filter: Yes, CM Choke: Yes
- Comm Slot: None
- 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.
- Cntl Bd Overtemp: Main Control Board over-temperature.
Fix: Check board fan and ambient; we replace fans and re-flow/replace the MCB if required.
- Motor Overload: Internal electronic overload trip.
Fix: Lower load below Motor FLA; we confirm FLA programming and motor sizing.
- Heatsink OverTemp: Heatsink temperature above limit (or very low).
Fix: Verify ambient, fan operation, and load; we replace fans and clean/recertify cooling path.
- Load Loss: Torque current below [Load Loss Level] for set time.
Fix: Verify mechanical coupling; we check level/time and drive feedback.
- Encoder Loss: One encoder channel missing (requires differential).
Fix: Verify wiring, rotation, pulse rate; we replace encoder/cable and re-align.
- 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.
Important Notes
Pricing listed on the website is for reference only and is subject to change over time.
Have a question about fit? Email us a label photo or the full catalog number—Flexa Systems will verify the correct unit.
We support Allen-Bradley PowerFlex 700 drives with both in-house repair and stocked replacements to keep you running.
- All units undergo full functional and load testing.
- Quotes reflect unit condition, configuration, and availability.
- Exchange / rush options available when time is critical.
- 12–24 month warranty on qualifying repairs & remans.
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.