Err1 (Alarm)
Speed Reference Alarm
Schindler · Altivar 212 Variable Frequency Drive
What does Err1 (Alarm) mean?
This alarm occurs when the frequency setting signals at points 1 and 2 are configured too close to each other, indicating an insufficient separation in speed reference steps.
Common Causes
- Frequency setting signals at points 1 and 2 are set too close together.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Increase the separation between frequency setting signals at points 1 and 2 to ensure proper step definition.
Verified technical data. Last updated: March 2026
Related Faults
Source: Schindler Altivar 212 Variable Frequency Drive