Control word timeout
Danfoss · VLT HVAC Drive High Power
What does 17 mean?
This warning/alarm indicates a loss of communication with the frequency converter. It becomes active when parameter 8-04 Control Word Timeout Function is not set to [0] Off. If configured to [2] Stop and [26] Trip, the frequency converter will ramp down and then trip into an alarm state, indicating a critical communication failure.
Complete Troubleshooting Guide
- 1
Check all connections on the serial communication cable for looseness, damage, or improper seating.
- 2
Increase the timeout duration configured in parameter 8-03 Control Word Timeout Time to account for network latency or communication delays.
- 3
Verify the operational status and configuration of all external communication equipment connected to the frequency converter.
- 4
Review and ensure the installation adheres strictly to EMC (Electromagnetic Compatibility) requirements to prevent communication interference.