26
Start-up Prevented
Vacon · NX All-in-One Application
What does 26 mean?
This fault occurs when the drive's start-up sequence is prevented, often because a run request signal is active (ON) while a new application program is being downloaded or immediately after. This prevents unintended motor operation during configuration.
Common Causes
- Conditions required for safe start-up are not met (e.g., safety guards open).
- A prerequisite configuration parameter is missing or invalid.
- Initialization sequence failed due to an external fault.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Ensure the drive's run request signal is deactivated.
- 2
Cancel any active prevention of start-up, ensuring safety protocols are followed.
Verified technical data. Last updated: March 2026
Related Faults
Source: Vacon NX All-in-One Application