2
Breakdown in DSP Processor
Kone · Frequency Inverter
What does 2 mean?
This error indicates a malfunction or complete breakdown in the Digital Signal Processor (DSP) within the drive's control unit. The DSP is essential for executing control algorithms and managing all drive operations, therefore its failure will render the drive inoperable.
Common Causes
- Internal hardware failure of the DSP chip itself.
- Software or firmware corruption affecting the DSP's operational code.
- Power supply issues or instability to the control board or DSP circuit.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the power supply voltage to the control board for stability and correct specified levels.
- 2
Look for diagnostic LEDs on the control board that may indicate a DSP-specific issue or status.
- 3
Verify the physical integrity of the control board and its connections within the drive.
- 4
If supported and documented, attempt a firmware re-installation or a hardware reset of the drive.
Verified technical data. Last updated: March 2026
Related Faults
Source: Kone Frequency Inverter