69
DB Resistance
Allen-Bradley · PowerFlex 700
What does 69 mean?
The measured resistance of the internal Dynamic Braking (DB) resistor is outside its specified operating range. This could indicate a damaged or incorrect braking resistor, preventing effective energy dissipation during deceleration. A faulty DB resistor can lead to overvoltage trips or poor braking performance.
Common Causes
- Braking resistor fault or excessive temperature detected.
- Braking resistor value out of specified range.
- Braking resistor connected improperly or shorted.
- Excessive regenerative energy requiring braking resistor activation.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Replace the internal Dynamic Braking resistor with a specified replacement part.
Verified technical data. Last updated: March 2026
Related Faults
Source: Allen-Bradley PowerFlex 700