System Fault
Vacon · 100 FLOW Application
What does 8 mean?
This broad fault indicates various internal drive malfunctions, including lack of communication between control and power boards, defective components (e.g., control board), low auxiliary power voltage, output phase voltage disagreement with reference, software incompatibility between units, unreadable software versions, resource overload, or CPU overload. These issues compromise the drive's operational integrity and can lead to unpredictable behavior.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
If the fault is related to a CPU overload (ID 608) or other transient internal malfunctions, perform a power down of the drive twice before restarting.
- 4
If the problem persists, especially if auxiliary power or communication between boards is indicated, contact your nearest distributor as a component may be defective.