First check 1
Fault appears at startup
Validate commissioning baseline before replacing hardware.
Signals to confirm
Next move
Use the code browser below to confirm the closest fault code.
Common fault classes and service references for ABB drives.
Critical
4
Warning
0
Info
0
Use this section to confirm what this error system covers, which device families it typically appears in, and how the main fault families are grouped before you move into individual codes.
Software/Config
1 code indexed under software/config diagnostics.
Power Supply
1 code indexed under power supply diagnostics.
Thermal
1 code indexed under thermal diagnostics.
Hardware
1 code indexed under hardware diagnostics.
Use these system-level checks first when the exact code is not yet confirmed. The goal is to narrow the failure path before you open a specific code page.
First check 1
Validate commissioning baseline before replacing hardware.
Signals to confirm
Next move
Use the code browser below to confirm the closest fault code.
First check 2
Review measured load against design envelope and trip settings.
Signals to confirm
Next move
Use the code browser below to confirm the closest fault code.
First check 3
Capture recurrence pattern and verify repeatability before final remediation.
Signals to confirm
Next move
Use the code browser below to confirm the closest fault code.
These groups help you translate a broad symptom into a smaller fault family, then move into the closest representative codes.
Fault group
1 code indexed under software/config diagnostics.
Start with these codes
Fault group
1 code indexed under power supply diagnostics.
Start with these codes
Fault group
1 code indexed under thermal diagnostics.
Start with these codes
Fault group
1 code indexed under hardware diagnostics.
Start with these codes
Use these curated entry points when you need a fast shortlist before working through the full code browser.
Use these as the fastest entry points when the system has not yet been narrowed to a single failure path.
These codes usually deserve faster attention because they are more disruptive or more likely to hide upstream system issues.
Use search, category filters, and severity filters to narrow the closest codes in this system once the first checks above are complete.
Use these guides, tools, and reference materials once the fault path is narrowed and you need to verify the next move.
These answers cover the system-level questions that usually come up before or during code-by-code troubleshooting.
Next step
Send your fault log, machine context, and target timeline for engineering review.