What causes fault code AB-F024 (PowerFlex 755 F100+ Configurable Fault)?

Application-specific condition met (configured by integrator). Process variable exceeded user-set threshold. Digital input configured as fault input is active. Analog input reading out of user-configured acceptable range. Custom fault logic in PLC triggered via network command

How do I fix fault code AB-F024?

Check fault code number — F100+ faults are site-specific. Refer to site-specific drive documentation for fault definitions. Check condition that triggered the custom fault — may be process-related. Review drive parameter group for the specific fault (usually P100+). Contact site integrator or controls engineer for application-specific support

PowerFlex 755 F100+ Configurable Fault

AB-F024

User-configurable fault on PowerFlex 755 triggered. These are custom faults set up by the integrator for application-specific conditions.

medium allen-bradley vfd

allen-bradley powerflex 755 custom fault configurable

Probable Causes (ranked)

Application-specific condition met (configured by integrator)
Process variable exceeded user-set threshold
Digital input configured as fault input is active
Analog input reading out of user-configured acceptable range
Custom fault logic in PLC triggered via network command

Fix Steps

1 Check fault code number — F100+ faults are site-specific
2 Refer to site-specific drive documentation for fault definitions
3 Check condition that triggered the custom fault — may be process-related
4 Review drive parameter group for the specific fault (usually P100+)
5 Contact site integrator or controls engineer for application-specific support

Field Trick

F100+ on a PF755 is a CUSTOM fault — not in the Rockwell manual. Look at the panel door — there should be a site-specific fault list. If not, check the PLC code for what triggers it.

Suggested Replacement Parts

Parts matched to fault category: Vfd Drive

Allen-Bradley PowerFlex 525 AC Drive 1HP P/N: 25B-D2P3N114 1HP, 480V, 3-phase, built-in EtherNet/IP, EMC filter

AutomationDirect $395.00 Amazon $450.00 Grainger $520.00

ABB ACS580 General Purpose Drive 2HP P/N: ACS580-01-05A7-4 2HP, 480V, built-in safe torque off, adaptive programming

AutomationDirect $425.00 Amazon $480.00 Grainger $550.00

GS20 AC Drive 1HP (Budget Option) P/N: GS20-20P5 1HP, 230V, sensorless vector, compact size — good replacement for testing

AutomationDirect $149.00 Amazon $175.00

Prices are estimates. Verify part numbers match your equipment before ordering.

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